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  1. WiredTiger
  2. WT-4759

Save a copy when an old overflow value is discarded

    • Type: Icon: Bug Bug
    • Resolution: Fixed
    • Priority: Icon: Major - P3 Major - P3
    • WT3.2.0, 4.1.11, 4.0.10, 3.6.14
    • Affects Version/s: None
    • Component/s: None
    • Labels:
      None
    • Storage Engines 2019-05-06
    • v3.6

      The format stress test picked up an assertion failure while eviction triggered reconciliation tried to test the on-page cell inside lock with the overflow cell. The build machine is margay-aws

      http://build.wiredtiger.com:8080/job/wiredtiger-test-format-stress/70709/console

      ++ nice catchsegv ./t -1 -c ../../../test/format/CONFIG.stress
      [1557101291:354124][25142:0x7fb3d815d700], t, file:wt.wt, eviction-server: __wt_ovfl_read, 82: i < track->remove_next
      [1557101291:354151][25142:0x7fb3d815d700], t, file:wt.wt, eviction-server: __wt_abort, 30: aborting WiredTiger library
      Aborted (core dumped)
      *** Aborted
      
      (...) 
      
      Backtrace:
      /lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7)[0x7fb3d9ce0e97]
      /lib/x86_64-linux-gnu/libc.so.6(abort+0x141)[0x7fb3d9ce2801]
      /mnt/data0/jenkins/workspace/wiredtiger-test-format-stress/build_posix/../src/os_common/os_alloc.c:34(__wt_calloc)[0x4582c7]
      /mnt/data0/jenkins/workspace/wiredtiger-test-format-stress/build_posix/../src/btree/bt_ovfl.c:83(__wt_ovfl_read)[0x4e8976]
      /mnt/data0/jenkins/workspace/wiredtiger-test-format-stress/build_posix/../src/include/cell.i:1032(__cell_data_ref)[0x5abd36]
      /mnt/data0/jenkins/workspace/wiredtiger-test-format-stress/build_posix/../src/include/cell.i:1076(__wt_page_cell_data_ref)[0x5abe0e]
      /mnt/data0/jenkins/workspace/wiredtiger-test-format-stress/build_posix/../src/reconcile/rec_visibility.c:76(__rec_append_orig_value)[0x5ac9ba]
      /mnt/data0/jenkins/workspace/wiredtiger-test-format-stress/build_posix/../src/reconcile/rec_visibility.c:488(__wt_rec_upd_select)[0x5ad686]
      /mnt/data0/jenkins/workspace/wiredtiger-test-format-stress/build_posix/../src/reconcile/rec_col.c:819(__wt_rec_col_var)[0x5a0639]
      /mnt/data0/jenkins/workspace/wiredtiger-test-format-stress/build_posix/../src/reconcile/rec_write.c:152(__wt_reconcile)[0x46f6a6]
      /mnt/data0/jenkins/workspace/wiredtiger-test-format-stress/build_posix/../src/evict/evict_page.c:696(__evict_review)[0x445f6a]
      /mnt/data0/jenkins/workspace/wiredtiger-test-format-stress/build_posix/../src/evict/evict_page.c:180(__wt_evict)[0x444647]
      /mnt/data0/jenkins/workspace/wiredtiger-test-format-stress/build_posix/../src/evict/evict_lru.c:2320(__evict_page)[0x441534]
      /mnt/data0/jenkins/workspace/wiredtiger-test-format-stress/build_posix/../src/evict/evict_lru.c:1173(__evict_lru_pages)[0x43dc71]
      /mnt/data0/jenkins/workspace/wiredtiger-test-format-stress/build_posix/../src/evict/evict_lru.c:318(__wt_evict_thread_run)[0x43bdc2]
      /mnt/data0/jenkins/workspace/wiredtiger-test-format-stress/build_posix/../src/support/thread_group.c:31(__thread_run)[0x4aa452]
      /lib/x86_64-linux-gnu/libpthread.so.0(+0x76db)[0x7fb3da6db6db]
      /lib/x86_64-linux-gnu/libc.so.6(clone+0x3f)[0x7fb3d9dc388f]

      The configuration:

      ############################################
      #  RUN PARAMETERS
      ############################################
      abort=0
      alter=0
      auto_throttle=0
      backups=0
      bitcnt=3
      bloom=1
      bloom_bit_count=10
      bloom_hash_count=23
      bloom_oldest=0
      cache=31
      cache_minimum=20
      checkpoints=wiredtiger
      checkpoint_log_size=149
      checkpoint_wait=49
      checksum=on
      chunk_size=6
      compaction=0
      compression=none
      data_extend=0
      data_source=table
      delete_pct=2
      dictionary=0
      direct_io=0
      encryption=none
      evict_max=0
      file_type=variable-length column-store
      firstfit=0
      huffman_key=0
      huffman_value=0
      independent_thread_rng=1
      in_memory=0
      insert_pct=0
      internal_key_truncation=1
      internal_page_max=14
      isolation=snapshot
      key_gap=8
      key_max=113
      key_min=19
      leaf_page_max=10
      leak_memory=0
      logging=0
      logging_archive=1
      logging_compression=none
      logging_file_max=337165
      logging_prealloc=0
      long_running_txn=0
      lsm_worker_threads=3
      memory_page_max=1
      merge_max=12
      mmap=1
      modify_pct=76
      ops=0
      prefix_compression=1
      prefix_compression_min=1
      prepare=1
      quiet=1
      read_pct=22
      rebalance=1
      repeat_data_pct=71
      reverse=0
      rows=1000000
      runs=1
      salvage=1
      split_pct=63
      statistics=0
      statistics_server=0
      threads=5
      timer=4
      timing_stress_aggressive_sweep=0
      timing_stress_checkpoint=0
      timing_stress_lookaside_sweep=0
      timing_stress_split_1=0
      timing_stress_split_2=0
      timing_stress_split_3=0
      timing_stress_split_4=0
      timing_stress_split_5=0
      timing_stress_split_6=0
      timing_stress_split_7=0
      timing_stress_split_8=0
      transaction_timestamps=1
      transaction-frequency=39
      truncate=1
      value_max=1198
      value_min=17
      verify=1
      wiredtiger_config=
      write_pct=0
      ############################################ 

            Assignee:
            michael.cahill@mongodb.com Michael Cahill (Inactive)
            Reporter:
            luke.chen@mongodb.com Luke Chen
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            0 Vote for this issue
            Watchers:
            3 Start watching this issue

              Created:
              Updated:
              Resolved: