ceph/src/rocksdb/tools/advisor/test/input_files/triggered_rules.ini

   1 [Rule "stall-too-many-memtables"]
   2 suggestions=inc-bg-flush:inc-write-buffer
   3 conditions=stall-too-many-memtables
   4
   5 [Condition "stall-too-many-memtables"]
   6 source=LOG
   7 regex=Stopping writes because we have \d+ immutable memtables \(waiting for flush\), max_write_buffer_number is set to \d+
   8
   9 [Rule "stall-too-many-L0"]
  10 suggestions=inc-max-subcompactions:inc-max-bg-compactions:inc-write-buffer-size:dec-max-bytes-for-level-base:inc-l0-slowdown-writes-trigger
  11 conditions=stall-too-many-L0
  12
  13 [Condition "stall-too-many-L0"]
  14 source=LOG
  15 regex=Stalling writes because we have \d+ level-0 files
  16
  17 [Rule "stop-too-many-L0"]
  18 suggestions=inc-max-bg-compactions:inc-write-buffer-size:inc-l0-stop-writes-trigger
  19 conditions=stop-too-many-L0
  20
  21 [Condition "stop-too-many-L0"]
  22 source=LOG
  23 regex=Stopping writes because we have \d+ level-0 files
  24
  25 [Rule "stall-too-many-compaction-bytes"]
  26 suggestions=inc-max-bg-compactions:inc-write-buffer-size:inc-hard-pending-compaction-bytes-limit:inc-soft-pending-compaction-bytes-limit
  27 conditions=stall-too-many-compaction-bytes
  28
  29 [Condition "stall-too-many-compaction-bytes"]
  30 source=LOG
  31 regex=Stalling writes because of estimated pending compaction bytes \d+
  32
  33 [Suggestion "inc-bg-flush"]
  34 option=DBOptions.max_background_flushes
  35 action=increase
  36
  37 [Suggestion "inc-write-buffer"]
  38 option=CFOptions.max_write_buffer_number
  39 action=increase
  40
  41 [Suggestion "inc-max-subcompactions"]
  42 option=DBOptions.max_subcompactions
  43 action=increase
  44
  45 [Suggestion "inc-max-bg-compactions"]
  46 option=DBOptions.max_background_compactions
  47 action=increase
  48
  49 [Suggestion "inc-write-buffer-size"]
  50 option=CFOptions.write_buffer_size
  51 action=increase
  52
  53 [Suggestion "dec-max-bytes-for-level-base"]
  54 option=CFOptions.max_bytes_for_level_base
  55 action=decrease
  56
  57 [Suggestion "inc-l0-slowdown-writes-trigger"]
  58 option=CFOptions.level0_slowdown_writes_trigger
  59 action=increase
  60
  61 [Suggestion "inc-l0-stop-writes-trigger"]
  62 option=CFOptions.level0_stop_writes_trigger
  63 action=increase
  64
  65 [Suggestion "inc-hard-pending-compaction-bytes-limit"]
  66 option=CFOptions.hard_pending_compaction_bytes_limit
  67 action=increase
  68
  69 [Suggestion "inc-soft-pending-compaction-bytes-limit"]
  70 option=CFOptions.soft_pending_compaction_bytes_limit
  71 action=increase
  72
  73 [Rule "level0-level1-ratio"]
  74 conditions=level0-level1-ratio
  75 suggestions=l0-l1-ratio-health-check
  76
  77 [Condition "level0-level1-ratio"]
  78 source=OPTIONS
  79 options=CFOptions.level0_file_num_compaction_trigger:CFOptions.write_buffer_size:CFOptions.max_bytes_for_level_base
  80 evaluate=int(options[0])*int(options[1])-int(options[2])>=-268173312  # should evaluate to a boolean, condition triggered if evaluates to true
  81
  82 [Suggestion "l0-l1-ratio-health-check"]
  83 description='modify options such that (level0_file_num_compaction_trigger * write_buffer_size - max_bytes_for_level_base < -268173312) is satisfied'