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  1. Core Server
  2. SERVER-39367

lastOpCommitted being reset on restart can cause sync source cycle

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Details

    • Icon: Bug Bug
    • Resolution: Fixed
    • Icon: Major - P3 Major - P3
    • 4.1.9
    • None
    • Replication
    • None
    • Fully Compatible
    • ALL
    • v4.0
    • Repl 2019-03-11
    • 15

    Description

      Consider two nodes in a set, nodes A and B. Node A restarts (resetting its lastOpCommitted to 0) and is ahead of node B. Node B syncs from A. A has no lastOpCommitted so A chooses to sync from B which has a non-zero lastOpCommitted, even though B is already syncing from A.

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            siyuan.zhou@mongodb.com Siyuan Zhou
            judah.schvimer@mongodb.com Judah Schvimer
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              Created:
              Updated:
              Resolved: