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  1. Core Server
  2. SERVER-49894

Have resharding oplog fetcher resume from 'ts' component of largest _id inserted

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    • Fully Compatible
    • Sharding 2021-02-22
    • 81
    • 1

    Description

      The largest _id value in the config.localReshardingOplogBuffer.<existingUUID>.<donorShardId> collection should be used with {$match: {ts: {$gte: <resume oplog buffer _id.ts>}}} to resume. Properties to ensure are being tested:

      1. The oplog fetcher for resharding must not trigger a duplicate key error when resuming.
      2. The oplog fetcher for resharding must not miss a document when resuming.

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          depends on

          Task - A task that needs to be done. SERVER-49893 Create oplog fetcher for resharding

          • Major - P3 - Major loss of function.
          • Closed
          is depended on by

          Task - A task that needs to be done. SERVER-51606 Handle recovery from resharding donors

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

          Task - A task that needs to be done. SERVER-53941 Have resharding oplog applier resume from its progress document

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

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              yuhong.zhang@mongodb.com Yuhong Zhang
              max.hirschhorn@mongodb.com Max Hirschhorn
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                Updated:
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