github.com/insionng/yougam@v0.0.0-20170714101924-2bc18d833463/libraries/pingcap/tidb/ddl/stat.go (about)

     1  // Copyright 2015 PingCAP, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package ddl
    15  
    16  import (
    17  	"github.com/insionng/yougam/libraries/juju/errors"
    18  	"github.com/insionng/yougam/libraries/pingcap/tidb/inspectkv"
    19  	"github.com/insionng/yougam/libraries/pingcap/tidb/kv"
    20  	"github.com/insionng/yougam/libraries/pingcap/tidb/sessionctx/variable"
    21  )
    22  
    23  var (
    24  	serverID             = "server_id"
    25  	ddlSchemaVersion     = "ddl_schema_version"
    26  	ddlOwnerID           = "ddl_owner_id"
    27  	ddlOwnerLastUpdateTS = "ddl_owner_last_update_ts"
    28  	ddlJobID             = "ddl_job_id"
    29  	ddlJobAction         = "ddl_job_action"
    30  	ddlJobLastUpdateTS   = "ddl_job_last_update_ts"
    31  	ddlJobState          = "ddl_job_state"
    32  	ddlJobError          = "ddl_job_error"
    33  	ddlJobSchemaState    = "ddl_job_schema_state"
    34  	ddlJobSchemaID       = "ddl_job_schema_id"
    35  	ddlJobTableID        = "ddl_job_table_id"
    36  	ddlJobSnapshotVer    = "ddl_job_snapshot_ver"
    37  	ddlJobReorgHandle    = "ddl_job_reorg_handle"
    38  	ddlJobArgs           = "ddl_job_args"
    39  	bgSchemaVersion      = "bg_schema_version"
    40  	bgOwnerID            = "bg_owner_id"
    41  	bgOwnerLastUpdateTS  = "bg_owner_last_update_ts"
    42  	bgJobID              = "bg_job_id"
    43  	bgJobAction          = "bg_job_action"
    44  	bgJobLastUpdateTS    = "bg_job_last_update_ts"
    45  	bgJobState           = "bg_job_state"
    46  	bgJobError           = "bg_job_error"
    47  	bgJobSchemaState     = "bg_job_schema_state"
    48  	bgJobSchemaID        = "bg_job_schema_id"
    49  	bgJobTableID         = "bg_job_table_id"
    50  	bgJobSnapshotVer     = "bg_job_snapshot_ver"
    51  	bgJobReorgHandle     = "bg_job_reorg_handle"
    52  	bgJobArgs            = "bg_job_args"
    53  )
    54  
    55  // GetScope gets the status variables scope.
    56  func (d *ddl) GetScope(status string) variable.ScopeFlag {
    57  	// Now ddl status variables scope are all default scope.
    58  	return variable.DefaultScopeFlag
    59  }
    60  
    61  // Stat returns the DDL statistics.
    62  func (d *ddl) Stats() (map[string]interface{}, error) {
    63  	m := make(map[string]interface{})
    64  	m[serverID] = d.uuid
    65  	var ddlInfo, bgInfo *inspectkv.DDLInfo
    66  
    67  	err := kv.RunInNewTxn(d.store, false, func(txn kv.Transaction) error {
    68  		var err1 error
    69  		ddlInfo, err1 = inspectkv.GetDDLInfo(txn)
    70  		if err1 != nil {
    71  			return errors.Trace(err1)
    72  		}
    73  		bgInfo, err1 = inspectkv.GetBgDDLInfo(txn)
    74  
    75  		return errors.Trace(err1)
    76  	})
    77  	if err != nil {
    78  		return nil, errors.Trace(err)
    79  	}
    80  
    81  	m[ddlSchemaVersion] = ddlInfo.SchemaVer
    82  	if ddlInfo.Owner != nil {
    83  		m[ddlOwnerID] = ddlInfo.Owner.OwnerID
    84  		// LastUpdateTS uses nanosecond.
    85  		m[ddlOwnerLastUpdateTS] = ddlInfo.Owner.LastUpdateTS / 1e9
    86  	}
    87  	if ddlInfo.Job != nil {
    88  		m[ddlJobID] = ddlInfo.Job.ID
    89  		m[ddlJobAction] = ddlInfo.Job.Type.String()
    90  		m[ddlJobLastUpdateTS] = ddlInfo.Job.LastUpdateTS / 1e9
    91  		m[ddlJobState] = ddlInfo.Job.State.String()
    92  		m[ddlJobError] = ddlInfo.Job.Error
    93  		m[ddlJobSchemaState] = ddlInfo.Job.SchemaState.String()
    94  		m[ddlJobSchemaID] = ddlInfo.Job.SchemaID
    95  		m[ddlJobTableID] = ddlInfo.Job.TableID
    96  		m[ddlJobSnapshotVer] = ddlInfo.Job.SnapshotVer
    97  		m[ddlJobReorgHandle] = ddlInfo.ReorgHandle
    98  		m[ddlJobArgs] = ddlInfo.Job.Args
    99  	}
   100  
   101  	// background DDL info
   102  	m[bgSchemaVersion] = bgInfo.SchemaVer
   103  	if bgInfo.Owner != nil {
   104  		m[bgOwnerID] = bgInfo.Owner.OwnerID
   105  		// LastUpdateTS uses nanosecond.
   106  		m[bgOwnerLastUpdateTS] = bgInfo.Owner.LastUpdateTS / 1e9
   107  	}
   108  	if bgInfo.Job != nil {
   109  		m[bgJobID] = bgInfo.Job.ID
   110  		m[bgJobAction] = bgInfo.Job.Type.String()
   111  		m[bgJobLastUpdateTS] = bgInfo.Job.LastUpdateTS / 1e9
   112  		m[bgJobState] = bgInfo.Job.State.String()
   113  		m[bgJobError] = bgInfo.Job.Error
   114  		m[bgJobSchemaState] = bgInfo.Job.SchemaState.String()
   115  		m[bgJobSchemaID] = bgInfo.Job.SchemaID
   116  		m[bgJobTableID] = bgInfo.Job.TableID
   117  		m[bgJobSnapshotVer] = bgInfo.Job.SnapshotVer
   118  		m[bgJobReorgHandle] = bgInfo.ReorgHandle
   119  		m[bgJobArgs] = bgInfo.Job.Args
   120  	}
   121  
   122  	return m, nil
   123  }