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  1. Core Server
  2. SERVER-53609

lastCommittedTransaction section causes frequent schema changes that limit FTDC retention

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    • Backwards Compatibility:
      Fully Compatible
    • Operating System:
      ALL
    • Backport Requested:
      v4.4, v4.2, v4.0
    • Sprint:
      Repl 2021-01-11

      Description

      serverStatus.transactions.lastCommittedTransaction.writeConcern records the write concern of the last committed transaction. This subdocument does not have a fixed schema: it may be empty or not, and the w field may be either a string or a number. This causes frequent schema changes for FTDC, and that can severely limit FTDC retention.

      A record of the last committed transaction has limited diagnostic value, so the best solution may be to omit the entire lastCommittedTransaction section from FTDC.

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              Assignee:
              jason.chan Jason Chan
              Reporter:
              bruce.lucas Bruce Lucas
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                Updated:
                Resolved: