Uploaded image for project: 'WiredTiger'
  1. WiredTiger
  2. WT-6771

The log should clarify what the figures reported during repair mean

    XMLWordPrintableJSON

Details

    • Improvement
    • Status: Closed
    • Major - P3
    • Resolution: Won't Do
    • 3.6.12, 4.0.8
    • None
    • Logging
    • None
    • 5

    Description

      When the server is started with --repair, the mongod reports the progress as:

      Show all

      		 
      2019-04-16T15:22:37.412+1000 I STORAGE  [initandlisten] Repairing collection test.s
      		 
      2019-04-16T15:22:37.478+1000 I STORAGE  [initandlisten] WiredTiger progress WT_SESSION.verify 100
      		 
      2019-04-16T15:22:37.488+1000 I STORAGE  [initandlisten] WiredTiger progress WT_SESSION.verify 200
      		 
      2019-04-16T15:22:37.496+1000 I STORAGE  [initandlisten] WiredTiger progress WT_SESSION.verify 300
      		 
      2019-04-16T15:22:37.512+1000 I STORAGE  [initandlisten] WiredTiger progress WT_SESSION.verify 400
      		 
      2019-04-16T15:22:37.517+1000 I STORAGE  [initandlisten] WiredTiger progress WT_SESSION.verify 500
      		 
      2019-04-16T15:22:37.536+1000 I STORAGE  [initandlisten] WiredTiger progress WT_SESSION.verify 600
      		 
      2019-04-16T15:22:37.558+1000 I STORAGE  [initandlisten] WiredTiger progress WT_SESSION.verify 700
      		 
      2019-04-16T15:22:37.563+1000 I STORAGE  [initandlisten] WiredTiger progress WT_SESSION.verify 800
      		 
      2019-04-16T15:22:37.568+1000 I STORAGE  [initandlisten] WiredTiger progress WT_SESSION.verify 900
      		 
      2019-04-16T15:22:37.573+1000 I STORAGE  [initandlisten] WiredTiger progress WT_SESSION.verify 1000
      		 
      <...>
      		 
      2019-04-16T15:22:45.252+1000 I STORAGE  [initandlisten] WiredTiger progress WT_SESSION.verify 19900
      		 
      2019-04-16T15:22:45.256+1000 I STORAGE  [initandlisten] WiredTiger progress WT_SESSION.verify 20000
      		 
      2019-04-16T15:22:45.269+1000 I STORAGE  [initandlisten] Verify succeeded on uri table:collection-22--6524862713396647743. Not salvaging.

      This is pretty cryptic and may not be very useful to the end users. Specifically it is not clear:

      • What these numbers signify
      • What's the relative progress

      For instance, if the numbers indicate how many data pages have been processed and if the number of pages to be read is known, it would be much better to have log lines similar to the following:

      2019-04-16T15:22:45.252+1000 I STORAGE  [initandlisten] WiredTiger progress WT_SESSION.verify 19900/20000 pages read

      Attachments

        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. SERVER-49319 WiredTiger crash after shutdown

          • Major - P3 - Major loss of function.
          • Closed
          related to

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-20871 There should be a rather clear way to check the repair's progress

          • Major - P3 - Major loss of function.
          • Closed

          Activity

            People

              backlog-server-storage-engines Backlog - Storage Engines Team
              dmitry.ryabtsev@mongodb.com Dmitry Ryabtsev
              Votes:
              0 Vote for this issue
              Watchers:
              16 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: