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  1. WiredTiger
  2. WT-7712

commit and durable timestamps should be disallowed at stable timestamp

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    • Storage Engines
    • Storage - Ra 2022-02-21
    • v5.0

      http://source.wiredtiger.com/develop/transactions.html#transaction_timestamps

      In the above document, we said that it is not allowed to commit a transaction at the current stable timestamp.

      However, in the code, it is actually allowed.

      if (has_stable_ts && durable_ts < stable_ts)
        WT_RET_MSG(session, EINVAL, "durable timestamp %s is less than the stable timestamp %s",
          __wt_timestamp_to_string(durable_ts, ts_string[0]),
          __wt_timestamp_to_string(stable_ts, ts_string[1]));

      if (has_stable_ts && commit_ts < stable_ts)
            WT_RET_MSG(session, EINVAL, "commit timestamp %s is less than the stable timestamp %s",
              __wt_timestamp_to_string(commit_ts, ts_string[0]),
              __wt_timestamp_to_string(stable_ts, ts_string[1]));

            Assignee:
            keith.bostic@mongodb.com Keith Bostic (Inactive)
            Reporter:
            chenhao.qu@mongodb.com Chenhao Qu
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              Created:
              Updated:
              Resolved: