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  1. WiredTiger
  2. WT-754

Hang in eviction

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    • Task
    • Status: Closed
    • Resolution: Done
    • None
    • WT2.1
    • None
    • None

    Description

      There is a new hang in eviction, reproducible via test/format. The config file is:

      ############################################
      #  RUN PARAMETERS
      ############################################
      # bitcnt not applicable to this run
      cache=2
      compression=none
      data_extend=0
      data_source=table
      delete_pct=40
      dictionary=0
      file_type=variable-length column-store
      hot_backups=0
      # huffman_key not applicable to this run
      huffman_value=0
      insert_pct=33
      internal_key_truncation=0
      internal_page_max=15
      key_gap=20
      # key_max not applicable to this run
      # key_min not applicable to this run
      leaf_page_max=16
      ops=10000
      # prefix not applicable to this run
      repeat_data_pct=77
      reverse=0
      rows=10000
      runs=50
      split_pct=74
      statistics=1
      threads=32
      value_max=1935
      value_min=16
      # wiredtiger_config not applicable to this run
      write_pct=86
      ############################################
      

      The hang reproduces quickly and reliably. It was introduced in commit http://github.com/wiredtiger/wiredtiger/commit/c01a4fe06915e829d9094a3c1387dcbbd8040202

      I suspect we aren't moving the oldest txn forward as quickly as before for some reason?

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              alexander.gorrod@mongodb.com Alexander Gorrod
              alexander.gorrod@mongodb.com Alexander Gorrod
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                Created:
                Updated:
                Resolved: