vitess.io/vitess@v0.16.2/doc/flags/14.0-to-15.0-transition/vttablet.diff (about)

     1  diff --git a/flags/14.0/vttablet.txt b/flags/15.0/vttablet.txt
     2  index 96a4298..25807a7 100644
     3  --- a/flags/14.0/vttablet.txt
     4  +++ b/flags/15.0/vttablet.txt
     5  @@ -1,19 +1,17 @@
     6   Usage of vttablet:
     7  -      --allowed_tablet_types value                                       Specifies the tablet types this vtgate is allowed to route queries to
     8         --alsologtostderr                                                  log to standard error as well as files
     9         --app_idle_timeout duration                                        Idle timeout for app connections (default 1m0s)
    10         --app_pool_size int                                                Size of the connection pool for app connections (default 40)
    11  -      --azblob_backup_account_key_file string                            Path to a file containing the Azure Storage account key; if this flag is unset, the environment variable VT_AZBLOB_ACCOUNT_KEY will be used as the key itself (NOT a file path)
    12  -      --azblob_backup_account_name string                                Azure Storage Account name for backups; if this flag is unset, the environment variable VT_AZBLOB_ACCOUNT_NAME will be used
    13  -      --azblob_backup_container_name string                              Azure Blob Container Name
    14  -      --azblob_backup_parallelism int                                    Azure Blob operation parallelism (requires extra memory when increased) (default 1)
    15  -      --azblob_backup_storage_root string                                Root prefix for all backup-related Azure Blobs; this should exclude both initial and trailing '/' (e.g. just 'a/b' not '/a/b/')
    16  -      --backup_engine_implementation string                              Specifies which implementation to use for creating new backups (builtin or xtrabackup). Restores will always be done with whichever engine created a given backup. (default builtin)
    17  +      --azblob_backup_account_key_file string                            Path to a file containing the Azure Storage account key; if this flag is unset, the environment variable VT_AZBLOB_ACCOUNT_KEY will be used as the key itself (NOT a file path).
    18  +      --azblob_backup_account_name string                                Azure Storage Account name for backups; if this flag is unset, the environment variable VT_AZBLOB_ACCOUNT_NAME will be used.
    19  +      --azblob_backup_container_name string                              Azure Blob Container Name.
    20  +      --azblob_backup_parallelism int                                    Azure Blob operation parallelism (requires extra memory when increased). (default 1)
    21  +      --azblob_backup_storage_root string                                Root prefix for all backup-related Azure Blobs; this should exclude both initial and trailing '/' (e.g. just 'a/b' not '/a/b/').
    22  +      --backup_engine_implementation string                              Specifies which implementation to use for creating new backups (builtin or xtrabackup). Restores will always be done with whichever engine created a given backup. (default "builtin")
    23         --backup_storage_block_size int                                    if backup_storage_compress is true, backup_storage_block_size sets the byte size for each block while compressing (default is 250000). (default 250000)
    24         --backup_storage_compress                                          if set, the backup files will be compressed (default is true). Set to false for instance if a backup_storage_hook is specified and it compresses the data. (default true)
    25  -      --backup_storage_hook string                                       if set, we send the contents of the backup files through this hook.
    26  -      --backup_storage_implementation string                             which implementation to use for the backup storage feature
    27  -      --backup_storage_number_blocks int                                 if backup_storage_compress is true, backup_storage_number_blocks sets the number of blocks that can be processed, at once, before the writer blocks, during compression (default is 2). It should be equal to the number of CPUs available for compression (default 2)
    28  +      --backup_storage_implementation string                             Which backup storage implementation to use for creating and restoring backups.
    29  +      --backup_storage_number_blocks int                                 if backup_storage_compress is true, backup_storage_number_blocks sets the number of blocks that can be processed, at once, before the writer blocks, during compression (default is 2). It should be equal to the number of CPUs available for compression. (default 2)
    30         --binlog_host string                                               PITR restore parameter: hostname/IP of binlog server.
    31         --binlog_password string                                           PITR restore parameter: password of binlog server.
    32         --binlog_player_grpc_ca string                                     the server ca to use to validate servers when connecting
    33  @@ -21,120 +19,29 @@ Usage of vttablet:
    34         --binlog_player_grpc_crl string                                    the server crl to use to validate server certificates when connecting
    35         --binlog_player_grpc_key string                                    the key to use to connect
    36         --binlog_player_grpc_server_name string                            the server name to use to validate server certificate
    37  -      --binlog_player_protocol string                                    the protocol to download binlogs from a vttablet (default grpc)
    38  +      --binlog_player_protocol string                                    the protocol to download binlogs from a vttablet (default "grpc")
    39         --binlog_port int                                                  PITR restore parameter: port of binlog server.
    40         --binlog_ssl_ca string                                             PITR restore parameter: Filename containing TLS CA certificate to verify binlog server TLS certificate against.
    41         --binlog_ssl_cert string                                           PITR restore parameter: Filename containing mTLS client certificate to present to binlog server as authentication.
    42         --binlog_ssl_key string                                            PITR restore parameter: Filename containing mTLS client private key for use in binlog server authentication.
    43  -      --binlog_ssl_server_name string                                    PITR restore parameter: TLS server name (common name) to verify against for the binlog server we are connecting to (If not set: use the hostname or IP supplied in -binlog_host).
    44  -      --binlog_use_v3_resharding_mode                                    (DEPRECATED) True if and only if the binlog streamer should use V3-style sharding, which doesn't require a preset sharding key column. (default true)
    45  +      --binlog_ssl_server_name string                                    PITR restore parameter: TLS server name (common name) to verify against for the binlog server we are connecting to (If not set: use the hostname or IP supplied in --binlog_host).
    46         --binlog_user string                                               PITR restore parameter: username of binlog server.
    47  -      --builtinbackup_mysqld_timeout duration                            how long to wait for mysqld to shutdown at the start of the backup (default 10m0s)
    48  -      --builtinbackup_progress duration                                  how often to send progress updates when backing up large files (default 5s)
    49  +      --builtinbackup_mysqld_timeout duration                            how long to wait for mysqld to shutdown at the start of the backup. (default 10m0s)
    50  +      --builtinbackup_progress duration                                  how often to send progress updates when backing up large files. (default 5s)
    51         --catch-sigpipe                                                    catch and ignore SIGPIPE on stdout and stderr if specified
    52  -      --ceph_backup_storage_config string                                Path to JSON config file for ceph backup storage (default ceph_backup_config.json)
    53  -      --client-found-rows-pool-size int                                  DEPRECATED: queryserver-config-transaction-cap will be used instead.
    54  +      --ceph_backup_storage_config string                                Path to JSON config file for ceph backup storage. (default "ceph_backup_config.json")
    55  +      --compression-engine-name string                                   compressor engine used for compression. (default "pargzip")
    56  +      --compression-level int                                            what level to pass to the compressor. (default 1)
    57  +      --consolidator-stream-query-size int                               Configure the stream consolidator query size in bytes. Setting to 0 disables the stream consolidator. (default 2097152)
    58  +      --consolidator-stream-total-size int                               Configure the stream consolidator total size in bytes. Setting to 0 disables the stream consolidator. (default 134217728)
    59         --consul_auth_static_file string                                   JSON File to read the topos/tokens from.
    60  -      --cpu_profile string                                               deprecated: use '-pprof=cpu' instead
    61         --datadog-agent-host string                                        host to send spans to. if empty, no tracing will be done
    62         --datadog-agent-port string                                        port to send spans to. if empty, no tracing will be done
    63  -      --db-config-allprivs-charset string                                deprecated: use db_charset (default utf8mb4)
    64  -      --db-config-allprivs-flags uint                                    deprecated: use db_flags
    65  -      --db-config-allprivs-flavor string                                 deprecated: use db_flavor
    66  -      --db-config-allprivs-host string                                   deprecated: use db_host
    67  -      --db-config-allprivs-pass string                                   db allprivs deprecated: use db_allprivs_password
    68  -      --db-config-allprivs-port int                                      deprecated: use db_port
    69  -      --db-config-allprivs-server_name string                            deprecated: use db_server_name
    70  -      --db-config-allprivs-ssl-ca string                                 deprecated: use db_ssl_ca
    71  -      --db-config-allprivs-ssl-ca-path string                            deprecated: use db_ssl_ca_path
    72  -      --db-config-allprivs-ssl-cert string                               deprecated: use db_ssl_cert
    73  -      --db-config-allprivs-ssl-key string                                deprecated: use db_ssl_key
    74  -      --db-config-allprivs-uname string                                  deprecated: use db_allprivs_user (default vt_allprivs)
    75  -      --db-config-allprivs-unixsocket string                             deprecated: use db_socket
    76  -      --db-config-app-charset string                                     deprecated: use db_charset (default utf8mb4)
    77  -      --db-config-app-flags uint                                         deprecated: use db_flags
    78  -      --db-config-app-flavor string                                      deprecated: use db_flavor
    79  -      --db-config-app-host string                                        deprecated: use db_host
    80  -      --db-config-app-pass string                                        db app deprecated: use db_app_password
    81  -      --db-config-app-port int                                           deprecated: use db_port
    82  -      --db-config-app-server_name string                                 deprecated: use db_server_name
    83  -      --db-config-app-ssl-ca string                                      deprecated: use db_ssl_ca
    84  -      --db-config-app-ssl-ca-path string                                 deprecated: use db_ssl_ca_path
    85  -      --db-config-app-ssl-cert string                                    deprecated: use db_ssl_cert
    86  -      --db-config-app-ssl-key string                                     deprecated: use db_ssl_key
    87  -      --db-config-app-uname string                                       deprecated: use db_app_user (default vt_app)
    88  -      --db-config-app-unixsocket string                                  deprecated: use db_socket
    89  -      --db-config-appdebug-charset string                                deprecated: use db_charset (default utf8mb4)
    90  -      --db-config-appdebug-flags uint                                    deprecated: use db_flags
    91  -      --db-config-appdebug-flavor string                                 deprecated: use db_flavor
    92  -      --db-config-appdebug-host string                                   deprecated: use db_host
    93  -      --db-config-appdebug-pass string                                   db appdebug deprecated: use db_appdebug_password
    94  -      --db-config-appdebug-port int                                      deprecated: use db_port
    95  -      --db-config-appdebug-server_name string                            deprecated: use db_server_name
    96  -      --db-config-appdebug-ssl-ca string                                 deprecated: use db_ssl_ca
    97  -      --db-config-appdebug-ssl-ca-path string                            deprecated: use db_ssl_ca_path
    98  -      --db-config-appdebug-ssl-cert string                               deprecated: use db_ssl_cert
    99  -      --db-config-appdebug-ssl-key string                                deprecated: use db_ssl_key
   100  -      --db-config-appdebug-uname string                                  deprecated: use db_appdebug_user (default vt_appdebug)
   101  -      --db-config-appdebug-unixsocket string                             deprecated: use db_socket
   102  -      --db-config-dba-charset string                                     deprecated: use db_charset (default utf8mb4)
   103  -      --db-config-dba-flags uint                                         deprecated: use db_flags
   104  -      --db-config-dba-flavor string                                      deprecated: use db_flavor
   105  -      --db-config-dba-host string                                        deprecated: use db_host
   106  -      --db-config-dba-pass string                                        db dba deprecated: use db_dba_password
   107  -      --db-config-dba-port int                                           deprecated: use db_port
   108  -      --db-config-dba-server_name string                                 deprecated: use db_server_name
   109  -      --db-config-dba-ssl-ca string                                      deprecated: use db_ssl_ca
   110  -      --db-config-dba-ssl-ca-path string                                 deprecated: use db_ssl_ca_path
   111  -      --db-config-dba-ssl-cert string                                    deprecated: use db_ssl_cert
   112  -      --db-config-dba-ssl-key string                                     deprecated: use db_ssl_key
   113  -      --db-config-dba-uname string                                       deprecated: use db_dba_user (default vt_dba)
   114  -      --db-config-dba-unixsocket string                                  deprecated: use db_socket
   115  -      --db-config-erepl-charset string                                   deprecated: use db_charset (default utf8mb4)
   116  -      --db-config-erepl-dbname string                                    deprecated: dbname does not need to be explicitly configured
   117  -      --db-config-erepl-flags uint                                       deprecated: use db_flags
   118  -      --db-config-erepl-flavor string                                    deprecated: use db_flavor
   119  -      --db-config-erepl-host string                                      deprecated: use db_host
   120  -      --db-config-erepl-pass string                                      db erepl deprecated: use db_erepl_password
   121  -      --db-config-erepl-port int                                         deprecated: use db_port
   122  -      --db-config-erepl-server_name string                               deprecated: use db_server_name
   123  -      --db-config-erepl-ssl-ca string                                    deprecated: use db_ssl_ca
   124  -      --db-config-erepl-ssl-ca-path string                               deprecated: use db_ssl_ca_path
   125  -      --db-config-erepl-ssl-cert string                                  deprecated: use db_ssl_cert
   126  -      --db-config-erepl-ssl-key string                                   deprecated: use db_ssl_key
   127  -      --db-config-erepl-uname string                                     deprecated: use db_erepl_user (default vt_erepl)
   128  -      --db-config-erepl-unixsocket string                                deprecated: use db_socket
   129  -      --db-config-filtered-charset string                                deprecated: use db_charset (default utf8mb4)
   130  -      --db-config-filtered-flags uint                                    deprecated: use db_flags
   131  -      --db-config-filtered-flavor string                                 deprecated: use db_flavor
   132  -      --db-config-filtered-host string                                   deprecated: use db_host
   133  -      --db-config-filtered-pass string                                   db filtered deprecated: use db_filtered_password
   134  -      --db-config-filtered-port int                                      deprecated: use db_port
   135  -      --db-config-filtered-server_name string                            deprecated: use db_server_name
   136  -      --db-config-filtered-ssl-ca string                                 deprecated: use db_ssl_ca
   137  -      --db-config-filtered-ssl-ca-path string                            deprecated: use db_ssl_ca_path
   138  -      --db-config-filtered-ssl-cert string                               deprecated: use db_ssl_cert
   139  -      --db-config-filtered-ssl-key string                                deprecated: use db_ssl_key
   140  -      --db-config-filtered-uname string                                  deprecated: use db_filtered_user (default vt_filtered)
   141  -      --db-config-filtered-unixsocket string                             deprecated: use db_socket
   142  -      --db-config-repl-charset string                                    deprecated: use db_charset (default utf8mb4)
   143  -      --db-config-repl-flags uint                                        deprecated: use db_flags
   144  -      --db-config-repl-flavor string                                     deprecated: use db_flavor
   145  -      --db-config-repl-host string                                       deprecated: use db_host
   146  -      --db-config-repl-pass string                                       db repl deprecated: use db_repl_password
   147  -      --db-config-repl-port int                                          deprecated: use db_port
   148  -      --db-config-repl-server_name string                                deprecated: use db_server_name
   149  -      --db-config-repl-ssl-ca string                                     deprecated: use db_ssl_ca
   150  -      --db-config-repl-ssl-ca-path string                                deprecated: use db_ssl_ca_path
   151  -      --db-config-repl-ssl-cert string                                   deprecated: use db_ssl_cert
   152  -      --db-config-repl-ssl-key string                                    deprecated: use db_ssl_key
   153  -      --db-config-repl-uname string                                      deprecated: use db_repl_user (default vt_repl)
   154  -      --db-config-repl-unixsocket string                                 deprecated: use db_socket
   155         --db-credentials-file string                                       db credentials file; send SIGHUP to reload this file
   156  -      --db-credentials-server string                                     db credentials server type ('file' - file implementation; 'vault' - HashiCorp Vault implementation) (default file)
   157  +      --db-credentials-server string                                     db credentials server type ('file' - file implementation; 'vault' - HashiCorp Vault implementation) (default "file")
   158         --db-credentials-vault-addr string                                 URL to Vault server
   159         --db-credentials-vault-path string                                 Vault path to credentials JSON blob, e.g.: secret/data/prod/dbcreds
   160  -      --db-credentials-vault-role-mountpoint string                      Vault AppRole mountpoint; can also be passed using VAULT_MOUNTPOINT environment variable (default approle)
   161  +      --db-credentials-vault-role-mountpoint string                      Vault AppRole mountpoint; can also be passed using VAULT_MOUNTPOINT environment variable (default "approle")
   162         --db-credentials-vault-role-secretidfile string                    Path to file containing Vault AppRole secret_id; can also be passed using VAULT_SECRETID environment variable
   163         --db-credentials-vault-roleid string                               Vault AppRole id; can also be passed using VAULT_ROLEID environment variable
   164         --db-credentials-vault-timeout duration                            Timeout for vault API operations (default 10s)
   165  @@ -143,84 +50,82 @@ Usage of vttablet:
   166         --db-credentials-vault-ttl duration                                How long to cache DB credentials from the Vault server (default 30m0s)
   167         --db_allprivs_password string                                      db allprivs password
   168         --db_allprivs_use_ssl                                              Set this flag to false to make the allprivs connection to not use ssl (default true)
   169  -      --db_allprivs_user string                                          db allprivs user userKey (default vt_allprivs)
   170  +      --db_allprivs_user string                                          db allprivs user userKey (default "vt_allprivs")
   171         --db_app_password string                                           db app password
   172         --db_app_use_ssl                                                   Set this flag to false to make the app connection to not use ssl (default true)
   173  -      --db_app_user string                                               db app user userKey (default vt_app)
   174  +      --db_app_user string                                               db app user userKey (default "vt_app")
   175         --db_appdebug_password string                                      db appdebug password
   176         --db_appdebug_use_ssl                                              Set this flag to false to make the appdebug connection to not use ssl (default true)
   177  -      --db_appdebug_user string                                          db appdebug user userKey (default vt_appdebug)
   178  -      --db_charset string                                                Character set used for this tablet. (default utf8mb4)
   179  +      --db_appdebug_user string                                          db appdebug user userKey (default "vt_appdebug")
   180  +      --db_charset string                                                Character set used for this tablet. (default "utf8mb4")
   181         --db_conn_query_info                                               enable parsing and processing of QUERY_OK info fields
   182         --db_connect_timeout_ms int                                        connection timeout to mysqld in milliseconds (0 for no timeout)
   183         --db_dba_password string                                           db dba password
   184         --db_dba_use_ssl                                                   Set this flag to false to make the dba connection to not use ssl (default true)
   185  -      --db_dba_user string                                               db dba user userKey (default vt_dba)
   186  +      --db_dba_user string                                               db dba user userKey (default "vt_dba")
   187         --db_erepl_password string                                         db erepl password
   188         --db_erepl_use_ssl                                                 Set this flag to false to make the erepl connection to not use ssl (default true)
   189  -      --db_erepl_user string                                             db erepl user userKey (default vt_erepl)
   190  +      --db_erepl_user string                                             db erepl user userKey (default "vt_erepl")
   191         --db_filtered_password string                                      db filtered password
   192         --db_filtered_use_ssl                                              Set this flag to false to make the filtered connection to not use ssl (default true)
   193  -      --db_filtered_user string                                          db filtered user userKey (default vt_filtered)
   194  +      --db_filtered_user string                                          db filtered user userKey (default "vt_filtered")
   195         --db_flags uint                                                    Flag values as defined by MySQL.
   196         --db_flavor string                                                 Flavor overrid. Valid value is FilePos.
   197         --db_host string                                                   The host name for the tcp connection.
   198         --db_port int                                                      tcp port
   199         --db_repl_password string                                          db repl password
   200         --db_repl_use_ssl                                                  Set this flag to false to make the repl connection to not use ssl (default true)
   201  -      --db_repl_user string                                              db repl user userKey (default vt_repl)
   202  +      --db_repl_user string                                              db repl user userKey (default "vt_repl")
   203         --db_server_name string                                            server name of the DB we are connecting to.
   204         --db_socket string                                                 The unix socket to connect on. If this is specified, host and port will not be used.
   205         --db_ssl_ca string                                                 connection ssl ca
   206         --db_ssl_ca_path string                                            connection ssl ca path
   207         --db_ssl_cert string                                               connection ssl certificate
   208         --db_ssl_key string                                                connection ssl key
   209  -      --db_ssl_mode value                                                SSL mode to connect with. One of disabled, preferred, required, verify_ca & verify_identity.
   210  +      --db_ssl_mode SslMode                                              SSL mode to connect with. One of disabled, preferred, required, verify_ca & verify_identity.
   211         --db_tls_min_version string                                        Configures the minimal TLS version negotiated when SSL is enabled. Defaults to TLSv1.2. Options: TLSv1.0, TLSv1.1, TLSv1.2, TLSv1.3.
   212         --dba_idle_timeout duration                                        Idle timeout for dba connections (default 1m0s)
   213         --dba_pool_size int                                                Size of the connection pool for dba connections (default 20)
   214         --degraded_threshold duration                                      replication lag after which a replica is considered degraded (default 30s)
   215  +      --disable-replication-manager                                      Disable replication manager to prevent replication repairs.
   216         --disable_active_reparents                                         if set, do not allow active reparents. Use this to protect a cluster using external reparents.
   217  -      --discovery_high_replication_lag_minimum_serving duration          the replication lag that is considered too high when applying the min_number_serving_vttablets threshold (default 2h0m0s)
   218  -      --discovery_low_replication_lag duration                           the replication lag that is considered low enough to be healthy (default 30s)
   219         --emit_stats                                                       If set, emit stats to push-based monitoring and stats backends
   220  -      --enable-autocommit                                                This flag is deprecated. Autocommit is always allowed. (default true)
   221         --enable-consolidator                                              Synonym to -enable_consolidator (default true)
   222         --enable-consolidator-replicas                                     Synonym to -enable_consolidator_replicas
   223         --enable-lag-throttler                                             Synonym to -enable_lag_throttler
   224  -      --enable-query-plan-field-caching                                  Synonym to -enable_query_plan_field_caching (default true)
   225         --enable-tx-throttler                                              Synonym to -enable_tx_throttler
   226         --enable_consolidator                                              This option enables the query consolidator. (default true)
   227         --enable_consolidator_replicas                                     This option enables the query consolidator only on replicas.
   228         --enable_hot_row_protection                                        If true, incoming transactions for the same row (range) will be queued and cannot consume all txpool slots.
   229         --enable_hot_row_protection_dry_run                                If true, hot row protection is not enforced but logs if transactions would have been queued.
   230         --enable_lag_throttler                                             If true, vttablet will run a throttler service, and will implicitly enable heartbeats
   231  -      --enable_query_plan_field_caching                                  This option fetches & caches fields (columns) when storing query plans (default true)
   232         --enable_replication_reporter                                      Use polling to track replication lag.
   233  -      --enable_semi_sync                                                 Enable semi-sync when configuring replication, on primary and replica tablets only (rdonly tablets will not ack).
   234         --enable_transaction_limit                                         If true, limit on number of transactions open at the same time will be enforced for all users. User trying to open a new transaction after exhausting their limit will receive an error immediately, regardless of whether there are available slots or not.
   235         --enable_transaction_limit_dry_run                                 If true, limit on number of transactions open at the same time will be tracked for all users, but not enforced.
   236         --enable_tx_throttler                                              If true replication-lag-based throttling on transactions will be enabled.
   237         --enforce-tableacl-config                                          if this flag is true, vttablet will fail to start if a valid tableacl config does not exist
   238         --enforce_strict_trans_tables                                      If true, vttablet requires MySQL to run with STRICT_TRANS_TABLES or STRICT_ALL_TABLES on. It is recommended to not turn this flag off. Otherwise MySQL may alter your supplied values before saving them to the database. (default true)
   239  -      --file_backup_storage_root string                                  root directory for the file backup storage
   240  +      --external-compressor string                                       command with arguments to use when compressing a backup.
   241  +      --external-compressor-extension string                             extension to use when using an external compressor.
   242  +      --external-decompressor string                                     command with arguments to use when decompressing a backup.
   243  +      --file_backup_storage_root string                                  Root directory for the file backup storage.
   244         --filecustomrules string                                           file based custom rule path
   245         --filecustomrules_watch                                            set up a watch on the target file and reload query rules when it changes
   246         --gc_check_interval duration                                       Interval between garbage collection checks (default 1h0m0s)
   247         --gc_purge_check_interval duration                                 Interval between purge discovery checks (default 1m0s)
   248  -      --gcs_backup_storage_bucket string                                 Google Cloud Storage bucket to use for backups
   249  -      --gcs_backup_storage_root string                                   root prefix for all backup-related object names
   250  +      --gcs_backup_storage_bucket string                                 Google Cloud Storage bucket to use for backups.
   251  +      --gcs_backup_storage_root string                                   Root prefix for all backup-related object names.
   252         --gh-ost-path string                                               override default gh-ost binary full path
   253         --grpc_auth_mode string                                            Which auth plugin implementation to use (eg: static)
   254         --grpc_auth_mtls_allowed_substrings string                         List of substrings of at least one of the client certificate names (separated by colon).
   255  -      --grpc_auth_static_client_creds string                             when using grpc_static_auth in the server, this file provides the credentials to use to authenticate with server
   256  +      --grpc_auth_static_client_creds string                             When using grpc_static_auth in the server, this file provides the credentials to use to authenticate with server.
   257         --grpc_auth_static_password_file string                            JSON File to read the users/passwords from.
   258         --grpc_ca string                                                   server CA to use for gRPC connections, requires TLS, and enforces client certificate check
   259         --grpc_cert string                                                 server certificate to use for gRPC connections, requires grpc_key, enables TLS
   260         --grpc_compression string                                          Which protocol to use for compressing gRPC. Default: nothing. Supported: snappy
   261         --grpc_crl string                                                  path to a certificate revocation list in PEM format, client certificates will be further verified against this file during TLS handshake
   262         --grpc_enable_optional_tls                                         enable optional TLS mode when a server accepts both TLS and plain-text connections on the same port
   263  -      --grpc_enable_tracing                                              Enable GRPC tracing
   264  +      --grpc_enable_tracing                                              Enable gRPC tracing.
   265         --grpc_initial_conn_window_size int                                gRPC initial connection window size
   266         --grpc_initial_window_size int                                     gRPC initial window size
   267         --grpc_keepalive_time duration                                     After a duration of this time, if the client doesn't see any activity, it pings the server to see if the transport is still alive. (default 10s)
   268  @@ -229,8 +134,8 @@ Usage of vttablet:
   269         --grpc_max_connection_age duration                                 Maximum age of a client connection before GoAway is sent. (default 2562047h47m16.854775807s)
   270         --grpc_max_connection_age_grace duration                           Additional grace period after grpc_max_connection_age, after which connections are forcibly closed. (default 2562047h47m16.854775807s)
   271         --grpc_max_message_size int                                        Maximum allowed RPC message size. Larger messages will be rejected by gRPC with the error 'exceeding the max size'. (default 16777216)
   272  -      --grpc_port int                                                    Port to listen on for gRPC calls
   273  -      --grpc_prometheus                                                  Enable gRPC monitoring with Prometheus
   274  +      --grpc_port int                                                    Port to listen on for gRPC calls. If zero, do not listen.
   275  +      --grpc_prometheus                                                  Enable gRPC monitoring with Prometheus.
   276         --grpc_server_ca string                                            path to server CA in PEM format, which will be combine with server cert, return full certificate chain to clients
   277         --grpc_server_initial_conn_window_size int                         gRPC server initial connection window size
   278         --grpc_server_initial_window_size int                              gRPC server initial window size
   279  @@ -240,6 +145,7 @@ Usage of vttablet:
   280         --heartbeat_enable                                                 If true, vttablet records (if master) or checks (if replica) the current time of a replication heartbeat in the table _vt.heartbeat. The result is used to inform the serving state of the vttablet via healthchecks.
   281         --heartbeat_interval duration                                      How frequently to read and write replication heartbeat. (default 1s)
   282         --heartbeat_on_demand_duration duration                            If non-zero, heartbeats are only written upon consumer request, and only run for up to given duration following the request. Frequent requests can keep the heartbeat running consistently; when requests are infrequent heartbeat may completely stop between requests
   283  +  -h, --help                                                             display usage and exit
   284         --hot_row_protection_concurrent_transactions int                   Number of concurrent transactions let through to the txpool/MySQL for the same hot row. Should be > 1 to have enough 'ready' transactions in MySQL and benefit from a pipelining effect. (default 5)
   285         --hot_row_protection_max_global_queue_size int                     Global queue limit across all row (ranges). Useful to prevent that the queue can grow unbounded. (default 1000)
   286         --hot_row_protection_max_queue_size int                            Maximum number of BeginExecute RPCs which will be queued for the same row (range). (default 20)
   287  @@ -248,27 +154,22 @@ Usage of vttablet:
   288         --init_populate_metadata                                           (init parameter) populate metadata tables even if restore_from_backup is disabled. If restore_from_backup is enabled, metadata tables are always populated regardless of this flag.
   289         --init_shard string                                                (init parameter) shard to use for this tablet
   290         --init_tablet_type string                                          (init parameter) the tablet type to use for this tablet.
   291  -      --init_tags value                                                  (init parameter) comma separated list of key:value pairs used to tag the tablet
   292  +      --init_tags StringMap                                              (init parameter) comma separated list of key:value pairs used to tag the tablet
   293         --init_timeout duration                                            (init parameter) timeout to use for the init phase. (default 1m0s)
   294         --jaeger-agent-host string                                         host and port to send spans to. if empty, no tracing will be done
   295         --keep_logs duration                                               keep logs for this long (using ctime) (zero to keep forever)
   296         --keep_logs_by_mtime duration                                      keep logs for this long (using mtime) (zero to keep forever)
   297  -      --keyspaces_to_watch value                                         Specifies which keyspaces this vtgate should have access to while routing queries or accessing the vschema
   298         --lameduck-period duration                                         keep running at least this long after SIGTERM before stopping (default 50ms)
   299  -      --legacy_replication_lag_algorithm                                 use the legacy algorithm when selecting the vttablets for serving (default true)
   300         --lock_tables_timeout duration                                     How long to keep the table locked before timing out (default 1m0s)
   301  -      --log_backtrace_at value                                           when logging hits line file:N, emit a stack trace
   302  +      --log_backtrace_at traceLocation                                   when logging hits line file:N, emit a stack trace (default :0)
   303         --log_dir string                                                   If non-empty, write log files in this directory
   304         --log_err_stacks                                                   log stack traces for errors
   305         --log_queries                                                      Enable query logging to syslog.
   306         --log_queries_to_file string                                       Enable query logging to the specified file
   307         --log_rotate_max_size uint                                         size in bytes at which logs are rotated (glog.MaxSize) (default 1887436800)
   308         --logtostderr                                                      log to standard error instead of files
   309  -      --master_connect_retry duration                                    Deprecated, use -replication_connect_retry (default 10s)
   310  -      --mem-profile-rate int                                             deprecated: use '-pprof=mem' instead (default 524288)
   311  +      --max_concurrent_online_ddl int                                    Maximum number of online DDL changes that may run concurrently (default 256)
   312         --migration_check_interval duration                                Interval between migration checks (default 1m0s)
   313  -      --min_number_serving_vttablets int                                 the minimum number of vttablets for each replicating tablet_type (e.g. replica, rdonly) that will be continue to be used even with replication lag above discovery_low_replication_lag, but still below discovery_high_replication_lag_minimum_serving (default 2)
   314  -      --mutex-profile-fraction int                                       deprecated: use '-pprof=mutex' instead
   315         --mycnf-file string                                                path to my.cnf, if reading all config params from there
   316         --mycnf_bin_log_path string                                        mysql binlog path
   317         --mycnf_data_dir string                                            data directory for mysql
   318  @@ -287,48 +188,32 @@ Usage of vttablet:
   319         --mycnf_slow_log_path string                                       mysql slow query log path
   320         --mycnf_socket_file string                                         mysql socket file
   321         --mycnf_tmp_dir string                                             mysql tmp directory
   322  -      --mysql_auth_server_static_file string                             JSON File to read the users/passwords from.
   323  -      --mysql_auth_server_static_string string                           JSON representation of the users/passwords config.
   324  -      --mysql_auth_static_reload_interval duration                       Ticker to reload credentials
   325  -      --mysql_clientcert_auth_method string                              client-side authentication method to use. Supported values: mysql_clear_password, dialog. (default mysql_clear_password)
   326  -      --mysql_server_flush_delay duration                                Delay after which buffered response will be flushed to the client. (default 100ms)
   327         --mysql_server_version string                                      MySQL server version to advertise.
   328  -      --mysqlctl_client_protocol string                                  the protocol to use to talk to the mysqlctl server (default grpc)
   329         --mysqlctl_mycnf_template string                                   template file to use for generating the my.cnf file during server init
   330         --mysqlctl_socket string                                           socket file to use for remote mysqlctl actions (empty for local actions)
   331         --onclose_timeout duration                                         wait no more than this for OnClose handlers before stopping (default 1ns)
   332         --onterm_timeout duration                                          wait no more than this for OnTermSync handlers before stopping (default 10s)
   333         --opentsdb_uri string                                              URI of opentsdb /api/put method
   334  -      --orc_api_password string                                          (Optional) Basic auth password to authenticate with Orchestrator's HTTP API.
   335  -      --orc_api_url string                                               Address of Orchestrator's HTTP API (e.g. http://host:port/api/). Leave empty to disable Orchestrator integration.
   336  -      --orc_api_user string                                              (Optional) Basic auth username to authenticate with Orchestrator's HTTP API. Leave empty to disable basic auth.
   337  -      --orc_discover_interval duration                                   How often to ping Orchestrator's HTTP API endpoint to tell it we exist. 0 means never.
   338  -      --orc_timeout duration                                             Timeout for calls to Orchestrator's HTTP API (default 30s)
   339         --pid_file string                                                  If set, the process will write its pid to the named file, and delete it on graceful shutdown.
   340         --pitr_gtid_lookup_timeout duration                                PITR restore parameter: timeout for fetching gtid from timestamp. (default 1m0s)
   341  -      --pool-name-prefix string                                          Deprecated
   342         --pool_hostname_resolve_interval duration                          if set force an update to all hostnames and reconnect if changed, defaults to 0 (disabled)
   343         --port int                                                         port for the server
   344  -      --pprof string                                                     enable profiling
   345  +      --pprof strings                                                    enable profiling
   346         --pt-osc-path string                                               override default pt-online-schema-change binary full path
   347         --publish_retry_interval duration                                  how long vttablet waits to retry publishing the tablet record (default 30s)
   348         --purge_logs_interval duration                                     how often try to remove old logs (default 1h0m0s)
   349  -      --query-log-stream-handler string                                  URL handler for streaming queries log (default /debug/querylog)
   350  +      --query-log-stream-handler string                                  URL handler for streaming queries log (default "/debug/querylog")
   351         --querylog-filter-tag string                                       string that must be present in the query for it to be logged; if using a value as the tag, you need to disable query normalization
   352  -      --querylog-format string                                           format for query logs ("text" or "json") (default text)
   353  +      --querylog-format string                                           format for query logs ("text" or "json") (default "text")
   354         --querylog-row-threshold uint                                      Number of rows a query has to return or affect before being logged; not useful for streaming queries. 0 means all queries will be logged.
   355         --queryserver-config-acl-exempt-acl string                         an acl that exempt from table acl checking (this acl is free to access any vitess tables).
   356  -      --queryserver-config-allowunsafe-dmls                              deprecated
   357         --queryserver-config-annotate-queries                              prefix queries to MySQL backend with comment indicating vtgate principal (user) and target tablet type
   358         --queryserver-config-enable-table-acl-dry-run                      If this flag is enabled, tabletserver will emit monitoring metrics and let the request pass regardless of table acl check results
   359         --queryserver-config-idle-timeout float                            query server idle timeout (in seconds), vttablet manages various mysql connection pools. This config means if a connection has not been used in given idle timeout, this connection will be removed from pool. This effectively manages number of connection objects and optimize the pool performance. (default 1800)
   360  -      --queryserver-config-max-dml-rows int                              query server max dml rows per statement, maximum number of rows allowed to return at a time for an update or delete with either 1) an equality where clauses on primary keys, or 2) a subselect statement. For update and delete statements in above two categories, vttablet will split the original query into multiple small queries based on this configuration value.
   361         --queryserver-config-max-result-size int                           query server max result size, maximum number of rows allowed to return from vttablet for non-streaming queries. (default 10000)
   362  -      --queryserver-config-message-conn-pool-prefill-parallelism int     DEPRECATED: Unused.
   363  -      --queryserver-config-message-conn-pool-size int                    DEPRECATED
   364         --queryserver-config-message-postpone-cap int                      query server message postpone cap is the maximum number of messages that can be postponed at any given time. Set this number to substantially lower than transaction cap, so that the transaction pool isn't exhausted by the message subsystem. (default 4)
   365  +      --queryserver-config-olap-transaction-timeout float                query server transaction timeout (in seconds), after which a transaction in an OLAP session will be killed (default 30)
   366         --queryserver-config-passthrough-dmls                              query server pass through all dml statements without rewriting
   367  -      --queryserver-config-pool-prefill-parallelism int                  query server read pool prefill parallelism, a non-zero value will prefill the pool using the specified parallism.
   368         --queryserver-config-pool-size int                                 query server read pool size, connection pool is used by regular queries (non streaming, not in a transaction) (default 16)
   369         --queryserver-config-query-cache-lfu                               query server cache algorithm. when set to true, a new cache algorithm based on a TinyLFU admission policy will be used to improve cache behavior and prevent pollution from sparse queries (default true)
   370         --queryserver-config-query-cache-memory int                        query server query cache size in bytes, maximum amount of memory to be used for caching. vttablet analyzes every incoming query and generate a query plan, these plans are being cached in a lru cache. This config controls the capacity of the lru cache. (default 33554432)
   371  @@ -340,18 +225,17 @@ Usage of vttablet:
   372         --queryserver-config-schema-change-signal-interval float           query server schema change signal interval defines at which interval the query server shall send schema updates to vtgate. (default 5)
   373         --queryserver-config-schema-reload-time float                      query server schema reload time, how often vttablet reloads schemas from underlying MySQL instance in seconds. vttablet keeps table schemas in its own memory and periodically refreshes it from MySQL. This config controls the reload time. (default 1800)
   374         --queryserver-config-stream-buffer-size int                        query server stream buffer size, the maximum number of bytes sent from vttablet for each stream call. It's recommended to keep this value in sync with vtgate's stream_buffer_size. (default 32768)
   375  -      --queryserver-config-stream-pool-prefill-parallelism int           query server stream pool prefill parallelism, a non-zero value will prefill the pool using the specified parallelism
   376         --queryserver-config-stream-pool-size int                          query server stream connection pool size, stream pool is used by stream queries: queries that return results to client in a streaming fashion (default 200)
   377         --queryserver-config-stream-pool-timeout float                     query server stream pool timeout (in seconds), it is how long vttablet waits for a connection from the stream pool. If set to 0 (default) then there is no timeout.
   378         --queryserver-config-stream-pool-waiter-cap int                    query server stream pool waiter limit, this is the maximum number of streaming queries that can be queued waiting to get a connection
   379         --queryserver-config-strict-table-acl                              only allow queries that pass table acl checks
   380         --queryserver-config-terse-errors                                  prevent bind vars from escaping in client error messages
   381         --queryserver-config-transaction-cap int                           query server transaction cap is the maximum number of transactions allowed to happen at any given point of a time for a single vttablet. E.g. by setting transaction cap to 100, there are at most 100 transactions will be processed by a vttablet and the 101th transaction will be blocked (and fail if it cannot get connection within specified timeout) (default 20)
   382  -      --queryserver-config-transaction-prefill-parallelism int           query server transaction prefill parallelism, a non-zero value will prefill the pool using the specified parallism.
   383         --queryserver-config-transaction-timeout float                     query server transaction timeout (in seconds), a transaction will be killed if it takes longer than this value (default 30)
   384         --queryserver-config-txpool-timeout float                          query server transaction pool timeout, it is how long vttablet waits if tx pool is full (default 1)
   385         --queryserver-config-txpool-waiter-cap int                         query server transaction pool waiter limit, this is the maximum number of transactions that can be queued waiting to get a connection (default 5000)
   386         --queryserver-config-warn-result-size int                          query server result size warning threshold, warn if number of rows returned from vttablet for non-streaming queries exceeds this
   387  +      --queryserver-enable-settings-pool                                 Enable pooling of connections with modified system settings
   388         --queryserver_enable_online_ddl                                    Enable online DDL. (default true)
   389         --redact-debug-ui-queries                                          redact full queries and bind variables from debug UI
   390         --relay_log_max_items int                                          Maximum number of rows for VReplication target buffering. (default 5000)
   391  @@ -362,18 +246,18 @@ Usage of vttablet:
   392         --restore_from_backup                                              (init restore parameter) will check BackupStorage for a recent backup at startup and start there
   393         --restore_from_backup_ts string                                    (init restore parameter) if set, restore the latest backup taken at or before this timestamp. Example: '2021-04-29.133050'
   394         --retain_online_ddl_tables duration                                How long should vttablet keep an old migrated table before purging it (default 24h0m0s)
   395  -      --s3_backup_aws_endpoint string                                    endpoint of the S3 backend (region must be provided)
   396  -      --s3_backup_aws_region string                                      AWS region to use (default us-east-1)
   397  -      --s3_backup_aws_retries int                                        AWS request retries (default -1)
   398  -      --s3_backup_force_path_style                                       force the s3 path style
   399  -      --s3_backup_log_level string                                       determine the S3 loglevel to use from LogOff, LogDebug, LogDebugWithSigning, LogDebugWithHTTPBody, LogDebugWithRequestRetries, LogDebugWithRequestErrors (default LogOff)
   400  -      --s3_backup_server_side_encryption string                          server-side encryption algorithm (e.g., AES256, aws:kms, sse_c:/path/to/key/file)
   401  -      --s3_backup_storage_bucket string                                  S3 bucket to use for backups
   402  -      --s3_backup_storage_root string                                    root prefix for all backup-related object names
   403  -      --s3_backup_tls_skip_verify_cert                                   skip the 'certificate is valid' check for SSL connections
   404  +      --s3_backup_aws_endpoint string                                    endpoint of the S3 backend (region must be provided).
   405  +      --s3_backup_aws_region string                                      AWS region to use. (default "us-east-1")
   406  +      --s3_backup_aws_retries int                                        AWS request retries. (default -1)
   407  +      --s3_backup_force_path_style                                       force the s3 path style.
   408  +      --s3_backup_log_level string                                       determine the S3 loglevel to use from LogOff, LogDebug, LogDebugWithSigning, LogDebugWithHTTPBody, LogDebugWithRequestRetries, LogDebugWithRequestErrors. (default "LogOff")
   409  +      --s3_backup_server_side_encryption string                          server-side encryption algorithm (e.g., AES256, aws:kms, sse_c:/path/to/key/file).
   410  +      --s3_backup_storage_bucket string                                  S3 bucket to use for backups.
   411  +      --s3_backup_storage_root string                                    root prefix for all backup-related object names.
   412  +      --s3_backup_tls_skip_verify_cert                                   skip the 'certificate is valid' check for SSL connections.
   413         --sanitize_log_messages                                            Remove potentially sensitive information in tablet INFO, WARNING, and ERROR log messages such as query parameters.
   414         --security_policy string                                           the name of a registered security policy to use for controlling access to URLs - empty means allow all for anyone (built-in policies: deny-all, read-only)
   415  -      --service_map value                                                comma separated list of services to enable (or disable if prefixed with '-') Example: grpc-vtworker
   416  +      --service_map strings                                              comma separated list of services to enable (or disable if prefixed with '-') Example: grpc-queryservice
   417         --serving_state_grace_period duration                              how long to pause after broadcasting health to vtgate, before enforcing a new serving state
   418         --shard_sync_retry_delay duration                                  delay between retries of updates to keep the tablet and its shard record in sync (default 30s)
   419         --shutdown_grace_period float                                      how long to wait (in seconds) for queries and transactions to complete during graceful shutdown.
   420  @@ -384,20 +268,19 @@ Usage of vttablet:
   421         --srv_topo_timeout duration                                        topo server timeout (default 5s)
   422         --stats_backend string                                             The name of the registered push-based monitoring/stats backend to use
   423         --stats_combine_dimensions string                                  List of dimensions to be combined into a single "all" value in exported stats vars
   424  -      --stats_common_tags string                                         Comma-separated list of common tags for the stats backend. It provides both label and values. Example: label1:value1,label2:value2
   425  +      --stats_common_tags strings                                        Comma-separated list of common tags for the stats backend. It provides both label and values. Example: label1:value1,label2:value2
   426         --stats_drop_variables string                                      Variables to be dropped from the list of exported variables.
   427         --stats_emit_period duration                                       Interval between emitting stats to all registered backends (default 1m0s)
   428         --statsd_address string                                            Address for statsd client
   429  -      --statsd_sample_rate float                                          (default 1)
   430  -      --stderrthreshold value                                            logs at or above this threshold go to stderr (default 1)
   431  +      --statsd_sample_rate float                                         Sample rate for statsd metrics (default 1)
   432  +      --stderrthreshold severity                                         logs at or above this threshold go to stderr (default 1)
   433         --stream_health_buffer_size uint                                   max streaming health entries to buffer per streaming health client (default 20)
   434         --table-acl-config string                                          path to table access checker config file; send SIGHUP to reload this file
   435         --table-acl-config-reload-interval duration                        Ticker to reload ACLs. Duration flag, format e.g.: 30s. Default: do not reload
   436  -      --table_gc_lifecycle string                                        States for a DROP TABLE garbage collection cycle. Default is 'hold,purge,evac,drop', use any subset ('drop' implcitly always included) (default hold,purge,evac,drop)
   437  +      --table_gc_lifecycle string                                        States for a DROP TABLE garbage collection cycle. Default is 'hold,purge,evac,drop', use any subset ('drop' implcitly always included) (default "hold,purge,evac,drop")
   438         --tablet-path string                                               tablet alias
   439         --tablet_config string                                             YAML file config for tablet
   440         --tablet_dir string                                                The directory within the vtdataroot to store vttablet/mysql files. Defaults to being generated by the tablet uid.
   441  -      --tablet_filters value                                             Specifies a comma-separated list of 'keyspace|shard_name or keyrange' values to filter the tablets to watch
   442         --tablet_grpc_ca string                                            the server ca to use to validate servers when connecting
   443         --tablet_grpc_cert string                                          the cert to use to connect
   444         --tablet_grpc_crl string                                           the server crl to use to validate server certificates when connecting
   445  @@ -411,18 +294,15 @@ Usage of vttablet:
   446         --tablet_manager_grpc_crl string                                   the server crl to use to validate server certificates when connecting
   447         --tablet_manager_grpc_key string                                   the key to use to connect
   448         --tablet_manager_grpc_server_name string                           the server name to use to validate server certificate
   449  -      --tablet_manager_protocol string                                   the protocol to use to talk to vttablet (default grpc)
   450  -      --tablet_protocol string                                           how to talk to the vttablets (default grpc)
   451  -      --tablet_refresh_interval duration                                 tablet refresh interval (default 1m0s)
   452  -      --tablet_refresh_known_tablets                                     tablet refresh reloads the tablet address/port map from topo in case it changes (default true)
   453  -      --tablet_url_template string                                       format string describing debug tablet url formatting. See the Go code for getTabletDebugURL() how to customize this. (default http://{{.GetTabletHostPort}})
   454  +      --tablet_manager_protocol string                                   Protocol to use to make tabletmanager RPCs to vttablets. (default "grpc")
   455  +      --tablet_protocol string                                           Protocol to use to make queryservice RPCs to vttablets. (default "grpc")
   456         --throttle_check_as_check_self                                     Should throttler/check return a throttler/check-self result (changes throttler behavior for writes)
   457         --throttle_metrics_query SELECT                                    Override default heartbeat/lag metric. Use either SELECT (must return single row, single value) or `SHOW GLOBAL ... LIKE ...` queries. Set -throttle_metrics_threshold respectively.
   458         --throttle_metrics_threshold float                                 Override default throttle threshold, respective to -throttle_metrics_query (default 1.7976931348623157e+308)
   459  -      --throttle_tablet_types string                                     Comma separated VTTablet types to be considered by the throttler. default: 'replica'. example: 'replica,rdonly'. 'replica' aways implicitly included (default replica)
   460  +      --throttle_tablet_types string                                     Comma separated VTTablet types to be considered by the throttler. default: 'replica'. example: 'replica,rdonly'. 'replica' aways implicitly included (default "replica")
   461         --throttle_threshold duration                                      Replication lag threshold for default lag throttling (default 1s)
   462         --topo_consul_lock_delay duration                                  LockDelay for consul session. (default 15s)
   463  -      --topo_consul_lock_session_checks string                           List of checks for consul session. (default serfHealth)
   464  +      --topo_consul_lock_session_checks string                           List of checks for consul session. (default "serfHealth")
   465         --topo_consul_lock_session_ttl string                              TTL for consul session.
   466         --topo_consul_watch_poll_duration duration                         time of the long poll for watch queries. (default 30s)
   467         --topo_etcd_lease_ttl int                                          Lease TTL for locks and leader election. The client will use KeepAlive to keep the lease going. (default 30)
   468  @@ -435,63 +315,37 @@ Usage of vttablet:
   469         --topo_k8s_context string                                          The kubeconfig context to use, overrides the 'current-context' from the config
   470         --topo_k8s_kubeconfig string                                       Path to a valid kubeconfig file. When running as a k8s pod inside the same cluster you wish to use as the topo, you may omit this and the below arguments, and Vitess is capable of auto-discovering the correct values. https://kubernetes.io/docs/tasks/access-application-cluster/access-cluster/#accessing-the-api-from-a-pod
   471         --topo_k8s_namespace string                                        The kubernetes namespace to use for all objects. Default comes from the context or in-cluster config
   472  -      --topo_read_concurrency int                                        concurrent topo reads (default 32)
   473         --topo_zk_auth_file string                                         auth to use when connecting to the zk topo server, file contents should be <scheme>:<auth>, e.g., digest:user:pass
   474         --topo_zk_base_timeout duration                                    zk base timeout (see zk.Connect) (default 30s)
   475         --topo_zk_max_concurrency int                                      maximum number of pending requests to send to a Zookeeper server. (default 64)
   476         --topo_zk_tls_ca string                                            the server ca to use to validate servers when connecting to the zk topo server
   477         --topo_zk_tls_cert string                                          the cert to use to connect to the zk topo server, requires topo_zk_tls_key, enables TLS
   478         --topo_zk_tls_key string                                           the key to use to connect to the zk topo server, enables TLS
   479  -      --topocustomrule_cell string                                       topo cell for customrules file. (default global)
   480  +      --topocustomrule_cell string                                       topo cell for customrules file. (default "global")
   481         --topocustomrule_path string                                       path for customrules file. Disabled if empty.
   482  -      --tracer string                                                    tracing service to use (default noop)
   483  +      --tracer string                                                    tracing service to use (default "noop")
   484         --tracing-enable-logging                                           whether to enable logging in the tracing service
   485  -      --tracing-sampling-rate value                                      sampling rate for the probabilistic jaeger sampler (default 0.1)
   486  -      --tracing-sampling-type value                                      sampling strategy to use for jaeger. possible values are 'const', 'probabilistic', 'rateLimiting', or 'remote' (default const)
   487  +      --tracing-sampling-rate float                                      sampling rate for the probabilistic jaeger sampler (default 0.1)
   488  +      --tracing-sampling-type string                                     sampling strategy to use for jaeger. possible values are 'const', 'probabilistic', 'rateLimiting', or 'remote' (default "const")
   489         --track_schema_versions                                            When enabled, vttablet will store versions of schemas at each position that a DDL is applied and allow retrieval of the schema corresponding to a position
   490  -      --transaction-log-stream-handler string                            URL handler for streaming transactions log (default /debug/txlog)
   491  +      --transaction-log-stream-handler string                            URL handler for streaming transactions log (default "/debug/txlog")
   492         --transaction_limit_by_component                                   Include CallerID.component when considering who the user is for the purpose of transaction limit.
   493         --transaction_limit_by_principal                                   Include CallerID.principal when considering who the user is for the purpose of transaction limit. (default true)
   494         --transaction_limit_by_subcomponent                                Include CallerID.subcomponent when considering who the user is for the purpose of transaction limit.
   495         --transaction_limit_by_username                                    Include VTGateCallerID.username when considering who the user is for the purpose of transaction limit. (default true)
   496         --transaction_limit_per_user float                                 Maximum number of transactions a single user is allowed to use at any time, represented as fraction of -transaction_cap. (default 0.4)
   497  -      --transaction_shutdown_grace_period float                          DEPRECATED: use shutdown_grace_period instead.
   498         --twopc_abandon_age float                                          time in seconds. Any unresolved transaction older than this time will be sent to the coordinator to be resolved.
   499         --twopc_coordinator_address string                                 address of the (VTGate) process(es) that will be used to notify of abandoned transactions.
   500         --twopc_enable                                                     if the flag is on, 2pc is enabled. Other 2pc flags must be supplied.
   501  -      --tx-throttler-config string                                       Synonym to -tx_throttler_config (default target_replication_lag_sec: 2
   502  -max_replication_lag_sec: 10
   503  -initial_rate: 100
   504  -max_increase: 1
   505  -emergency_decrease: 0.5
   506  -min_duration_between_increases_sec: 40
   507  -max_duration_between_increases_sec: 62
   508  -min_duration_between_decreases_sec: 20
   509  -spread_backlog_across_sec: 20
   510  -age_bad_rate_after_sec: 180
   511  -bad_rate_increase: 0.1
   512  -max_rate_approach_threshold: 0.9
   513  -)
   514  -      --tx-throttler-healthcheck-cells value                             Synonym to -tx_throttler_healthcheck_cells
   515  -      --tx_throttler_config string                                       The configuration of the transaction throttler as a text formatted throttlerdata.Configuration protocol buffer message (default target_replication_lag_sec: 2
   516  -max_replication_lag_sec: 10
   517  -initial_rate: 100
   518  -max_increase: 1
   519  -emergency_decrease: 0.5
   520  -min_duration_between_increases_sec: 40
   521  -max_duration_between_increases_sec: 62
   522  -min_duration_between_decreases_sec: 20
   523  -spread_backlog_across_sec: 20
   524  -age_bad_rate_after_sec: 180
   525  -bad_rate_increase: 0.1
   526  -max_rate_approach_threshold: 0.9
   527  -)
   528  -      --tx_throttler_healthcheck_cells value                             A comma-separated list of cells. Only tabletservers running in these cells will be monitored for replication lag by the transaction throttler.
   529  +      --tx-throttler-config string                                       Synonym to -tx_throttler_config (default "target_replication_lag_sec: 2\nmax_replication_lag_sec: 10\ninitial_rate: 100\nmax_increase: 1\nemergency_decrease: 0.5\nmin_duration_between_increases_sec: 40\nmax_duration_between_increases_sec: 62\nmin_duration_between_decreases_sec: 20\nspread_backlog_across_sec: 20\nage_bad_rate_after_sec: 180\nbad_rate_increase: 0.1\nmax_rate_approach_threshold: 0.9\n")
   530  +      --tx-throttler-healthcheck-cells strings                           Synonym to -tx_throttler_healthcheck_cells
   531  +      --tx_throttler_config string                                       The configuration of the transaction throttler as a text formatted throttlerdata.Configuration protocol buffer message (default "target_replication_lag_sec: 2\nmax_replication_lag_sec: 10\ninitial_rate: 100\nmax_increase: 1\nemergency_decrease: 0.5\nmin_duration_between_increases_sec: 40\nmax_duration_between_increases_sec: 62\nmin_duration_between_decreases_sec: 20\nspread_backlog_across_sec: 20\nage_bad_rate_after_sec: 180\nbad_rate_increase: 0.1\nmax_rate_approach_threshold: 0.9\n")
   532  +      --tx_throttler_healthcheck_cells strings                           A comma-separated list of cells. Only tabletservers running in these cells will be monitored for replication lag by the transaction throttler.
   533         --unhealthy_threshold duration                                     replication lag after which a replica is considered unhealthy (default 2h0m0s)
   534         --use_super_read_only                                              Set super_read_only flag when performing planned failover.
   535  -      --v value                                                          log level for V logs
   536  -      --version                                                          print binary version
   537  -      --vmodule value                                                    comma-separated list of pattern=N settings for file-filtered logging
   538  +      --v Level                                                          log level for V logs
   539  +  -v, --version                                                          print binary version
   540  +      --vmodule moduleSpec                                               comma-separated list of pattern=N settings for file-filtered logging
   541         --vreplication_copy_phase_duration duration                        Duration for each copy phase loop (before running the next catchup: default 1h) (default 1h0m0s)
   542         --vreplication_copy_phase_max_innodb_history_list_length int       The maximum InnoDB transaction history that can exist on a vstreamer (source) before starting another round of copying rows. This helps to limit the impact on the source tablet. (default 1000000)
   543         --vreplication_copy_phase_max_mysql_replication_lag int            The maximum MySQL replication lag (in seconds) that can exist on a vstreamer (source) before starting another round of copying rows. This helps to limit the impact on the source tablet. (default 43200)
   544  @@ -500,23 +354,24 @@ max_rate_approach_threshold: 0.9
   545         --vreplication_healthcheck_timeout duration                        healthcheck retry delay (default 1m0s)
   546         --vreplication_healthcheck_topology_refresh duration               refresh interval for re-reading the topology (default 30s)
   547         --vreplication_heartbeat_update_interval int                       Frequency (in seconds, default 1, max 60) at which the time_updated column of a vreplication stream when idling (default 1)
   548  -      --vreplication_max_time_to_retry_on_error duration                 stop automatically retrying when we've had consecutive failures with the same error for this long after the first occurrence (default 15m0s)
   549  +      --vreplication_max_time_to_retry_on_error duration                 stop automatically retrying when we've had consecutive failures with the same error for this long after the first occurrence
   550         --vreplication_replica_lag_tolerance duration                      Replica lag threshold duration: once lag is below this we switch from copy phase to the replication (streaming) phase (default 1m0s)
   551         --vreplication_retry_delay duration                                delay before retrying a failed workflow event in the replication phase (default 5s)
   552         --vreplication_store_compressed_gtid                               Store compressed gtids in the pos column of _vt.vreplication
   553  -      --vreplication_tablet_type string                                  comma separated list of tablet types used as a source (default in_order:REPLICA,PRIMARY)
   554  +      --vreplication_tablet_type string                                  comma separated list of tablet types used as a source (default "in_order:REPLICA,PRIMARY")
   555  +      --vstream-binlog-rotation-threshold int                            Byte size at which a VStreamer will attempt to rotate the source's open binary log before starting a GTID snapshot based stream (e.g. a ResultStreamer or RowStreamer) (default 67108864)
   556         --vstream_dynamic_packet_size                                      Enable dynamic packet sizing for VReplication. This will adjust the packet size during replication to improve performance. (default true)
   557         --vstream_packet_size int                                          Suggested packet size for VReplication streamer. This is used only as a recommendation. The actual packet size may be more or less than this amount. (default 250000)
   558         --vtctld_addr string                                               address of a vtctld instance
   559  -      --vtgate_protocol string                                           how to talk to vtgate (default grpc)
   560  -      --vttablet_skip_buildinfo_tags string                              comma-separated list of buildinfo tags to skip from merging with -init_tags. each tag is either an exact match or a regular expression of the form '/regexp/'. (default /.*/)
   561  +      --vtgate_protocol string                                           how to talk to vtgate (default "grpc")
   562  +      --vttablet_skip_buildinfo_tags string                              comma-separated list of buildinfo tags to skip from merging with --init_tags. each tag is either an exact match or a regular expression of the form '/regexp/'. (default "/.*/")
   563         --wait_for_backup_interval duration                                (init restore parameter) if this is greater than 0, instead of starting up empty when no backups are found, keep checking at this interval for a backup to appear
   564         --watch_replication_stream                                         When enabled, vttablet will stream the MySQL replication stream from the local server, and use it to update schema when it sees a DDL.
   565  -      --xbstream_restore_flags string                                    flags to pass to xbstream command during restore. These should be space separated and will be added to the end of the command. These need to match the ones used for backup e.g. --compress / --decompress, --encrypt / --decrypt
   566  -      --xtrabackup_backup_flags string                                   flags to pass to backup command. These should be space separated and will be added to the end of the command
   567  -      --xtrabackup_prepare_flags string                                  flags to pass to prepare command. These should be space separated and will be added to the end of the command
   568  -      --xtrabackup_root_path string                                      directory location of the xtrabackup and xbstream executables, e.g., /usr/bin
   569  -      --xtrabackup_stream_mode string                                    which mode to use if streaming, valid values are tar and xbstream (default tar)
   570  +      --xbstream_restore_flags string                                    Flags to pass to xbstream command during restore. These should be space separated and will be added to the end of the command. These need to match the ones used for backup e.g. --compress / --decompress, --encrypt / --decrypt
   571  +      --xtrabackup_backup_flags string                                   Flags to pass to backup command. These should be space separated and will be added to the end of the command
   572  +      --xtrabackup_prepare_flags string                                  Flags to pass to prepare command. These should be space separated and will be added to the end of the command
   573  +      --xtrabackup_root_path string                                      Directory location of the xtrabackup and xbstream executables, e.g., /usr/bin
   574  +      --xtrabackup_stream_mode string                                    Which mode to use if streaming, valid values are tar and xbstream. Please note that tar is not supported in XtraBackup 8.0 (default "tar")
   575         --xtrabackup_stripe_block_size uint                                Size in bytes of each block that gets sent to a given stripe before rotating to the next stripe (default 102400)
   576         --xtrabackup_stripes uint                                          If greater than 0, use data striping across this many destination files to parallelize data transfer and decompression
   577         --xtrabackup_user string                                           User that xtrabackup will use to connect to the database server. This user must have all necessary privileges. For details, please refer to xtrabackup documentation.