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  1. WiredTiger
  2. WT-2316

stress test failure: WT_CURSOR.prev out-of-order returns

    • Type: Icon: Bug Bug
    • Resolution: Done
    • Priority: Icon: Major - P3 Major - P3
    • WT2.8.0
    • Affects Version/s: None
    • Component/s: None
    • None

      New stress test failure. It's reproducible, I've seen it once (in 600+ runs), on pixiebob.

      [1451952138:804734][19893:0x7f4497fff700], t, file:wt.wt, WT_CURSOR.prev: WT_CURSOR.prev out-of-order returns: returned key 0000056500.13/opqrstuvwxyzabcde then key 0000100000.00/opqrst: Invalid argument
      [1451952138:804733][19893:0x7f44a6b7e700], t, file:wt.wt, WT_CURSOR.prev: WT_CURSOR.prev out-of-order returns: returned key 0000056500.13/opqrstuvwxyzabcde then key 0000100000.00/opqrst: Invalid argument
      t: cursor.reset: WT_PANIC: WiredTiger library panic[1451952138:804790][19893:0x7f4497fff700], t, file:wt.wt, WT_CURSOR.prev: the process must exit and restart: WT_PANIC: WiredTiger library panic
      

      Here's the CONFIG

      ############################################
      #  RUN PARAMETERS
      ############################################
      abort=0
      auto_throttle=1
      backups=0
      bitcnt=3
      bloom=1
      bloom_bit_count=6
      bloom_hash_count=12
      bloom_oldest=0
      cache=1250
      checkpoints=0
      checksum=uncompressed
      chunk_size=10
      compaction=0
      compression=none
      data_extend=0
      data_source=table
      delete_pct=36
      dictionary=0
      direct_io=0
      encryption=none
      evict_max=3
      file_type=row-store
      firstfit=0
      huffman_key=0
      huffman_value=0
      in_memory=1
      insert_pct=36
      internal_key_truncation=1
      internal_page_max=13
      isolation=snapshot
      key_gap=18
      key_max=51
      key_min=12
      leaf_page_max=9
      leak_memory=0
      logging=0
      logging_archive=0
      logging_compression=zlib
      logging_prealloc=0
      long_running_txn=0
      lsm_worker_threads=3
      merge_max=14
      mmap=1
      ops=100000
      prefix_compression=0
      prefix_compression_min=8
      repeat_data_pct=11
      reverse=0
      rows=100000
      runs=100
      salvage=0
      split_pct=51
      statistics=0
      statistics_server=0
      threads=5
      timer=20
      value_max=128
      value_min=20
      verify=0
      wiredtiger_config=
      write_pct=68
      ############################################
      

            Assignee:
            keith.bostic@mongodb.com Keith Bostic (Inactive)
            Reporter:
            keith.bostic@mongodb.com Keith Bostic (Inactive)
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            Watchers:
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              Created:
              Updated:
              Resolved: