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  1. Core Server
  2. SERVER-21444

WiredTiger replica set member is getting behind while syncing the oplog during the initialSync

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Critical - P2
    • Resolution: Duplicate
    • Affects Version/s: 3.0.7
    • Fix Version/s: None
    • Component/s: Replication, WiredTiger
    • Labels:
      None
    • Operating System:
      ALL

      Description

      During the oplog sync phase of the initial sync, the WiredTiger replica set is getting behind (almost 8 hours per day). It could be related to SERVER-21230 or SERVER-16575.

      namespace               operation    pattern    count    min (ms)    max (ms)    mean (ms)    95%-ile (ms)    sum (ms)
       
      local.system.replset    query        None         179           0        3607          144           882.1    25944
      

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        1. iostat_timeseries.png
          iostat_timeseries.png
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        2. ss_timeseries.png
          ss_timeseries.png
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              Assignee:
              Unassigned
              Reporter:
              ricardo.lorenzo Ricardo Lorenzo
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                Updated:
                Resolved: