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  1. Core Server
  2. SERVER-33188

WiredTiger.wt, connection: read checksum error for 4096B block

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    • Type: Icon: Question Question
    • Resolution: Done
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: 3.2.11
    • Component/s: None
    • None
    • Environment:
      Debian Stretch

      Same problem as SERVER-28555 reported by Edgars Beigarts.

      Our system went down due to an electrical blackout. Since then I cannot restart mongo, I get an error "WiredTiger.wt, connection: read checksum error for 4096B block" when I try to start it.

      mongod -repair fails with same error.
      I also tried to repair WiredTiger.wt file with the following command :
      ./wt -v -R -h/data/mongodb salvage WiredTiger.wt
      But it also fails with the same error.
      It looks like WiredTiger.wt file is truncated.

      Is there any tool capable to fix this ? Can you help me to repair this file ?

      Thanks
      Paule

        1. broken_wt_db.tgz
          2 kB
        2. mongodb_files_list.txt
          5 kB
        3. mongodb.log
          13 kB
        4. repair-SERVER-33188.tar.gz
          1 kB
        5. sizeStorer.wt
          16 kB

            Assignee:
            mark.agarunov Mark Agarunov
            Reporter:
            plecuyer Paule Lecuyer
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              Created:
              Updated:
              Resolved: