github.com/cockroachdb/pebble@v1.1.2/testdata/concurrent_excise (about)

     1  
     2  reset
     3  ----
     4  
     5  switch 1
     6  ----
     7  ok
     8  
     9  batch
    10  set d foo
    11  set e bar
    12  ----
    13  
    14  flush
    15  ----
    16  
    17  compact a-z
    18  ----
    19  ok
    20  
    21  switch 2
    22  ----
    23  ok
    24  
    25  batch
    26  set c fooz
    27  set f foobar
    28  ----
    29  
    30  flush
    31  ----
    32  
    33  compact a-z
    34  ----
    35  ok
    36  
    37  batch
    38  set d foobar
    39  ----
    40  
    41  flush
    42  ----
    43  
    44  lsm
    45  ----
    46  0.0:
    47    000007:[d#12,SET-d#12,SET]
    48  6:
    49    000005:[c#10,SET-f#11,SET]
    50  
    51  compact a-z block=c1
    52  ----
    53  spun off in separate goroutine
    54  
    55  iter
    56  first
    57  next
    58  next
    59  next
    60  next
    61  ----
    62  c: (fooz, .)
    63  d: (foobar, .)
    64  f: (foobar, .)
    65  .
    66  .
    67  
    68  # This excise should cancel the in-flight compaction, causing it to error out
    69  # below. The eventually file-only snapshot should go through because it's not
    70  # waiting on any keys in memtables
    71  
    72  file-only-snapshot s1
    73    c e
    74  ----
    75  ok
    76  
    77  replicate 1 2 b e
    78  ----
    79  replicated 1 shared SSTs
    80  
    81  unblock c1
    82  ----
    83  ok
    84  
    85  wait-for-file-only-snapshot s1
    86  ----
    87  ok
    88  
    89  lsm
    90  ----
    91  6:
    92    000010:[d#13,SET-d#13,SET]
    93    000011:[f#11,SET-f#11,SET]
    94  
    95  compact a-z
    96  ----
    97  ok
    98  
    99  wait-for-background-error
   100  ----
   101  pebble: compaction cancelled by a concurrent operation, will retry compaction
   102  
   103  iter
   104  first
   105  next
   106  next
   107  next
   108  next
   109  ----
   110  d: (foo, .)
   111  f: (foobar, .)
   112  .
   113  .
   114  .
   115  
   116  batch
   117  set d fo
   118  set ee foobar
   119  set f3 something
   120  ----
   121  
   122  flush
   123  ----
   124  
   125  compact a-z
   126  ----
   127  ok
   128  
   129  switch 1
   130  ----
   131  ok
   132  
   133  # The below file-only snapshot should be errored out by the concurrent excise.
   134  
   135  batch
   136  set d something
   137  ----
   138  
   139  flush
   140  ----
   141  
   142  batch
   143  set dd memory
   144  ----
   145  
   146  file-only-snapshot s2
   147   c e
   148  ----
   149  ok
   150  
   151  iter snapshot=s2
   152  first
   153  next
   154  next
   155  next
   156  ----
   157  d: (something, .)
   158  dd: (memory, .)
   159  e: (bar, .)
   160  .
   161  
   162  replicate 2 1 c dd
   163  ----
   164  replicated 1 shared SSTs
   165  
   166  wait-for-file-only-snapshot s2
   167  ----
   168  pebble: snapshot excised before conversion to file-only snapshot
   169  
   170  iter snapshot=s2
   171  first
   172  next
   173  next
   174  next
   175  ----
   176  pebble: snapshot excised before conversion to file-only snapshot