Uploaded image for project: 'Core Server'
  1. Core Server
  2. SERVER-31691

Change streams UUID mismatch uasserts with error code that causes invariant

    XMLWordPrintable

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 3.6.0-rc4
    • Component/s: Querying
    • Labels:
      None
    • Backwards Compatibility:
      Fully Compatible
    • Operating System:
      ALL
    • Epic Link:
    • Sprint:
      Query 2017-11-13

      Description

      Found while writing the tests for SERVER-31392, the DocumentSourceChangeStream hits a uassert when the UUID in the oplog entry mismatches the UUID in the scoped collection metadata. Returning ErrorCodes::StaleConfig results in a dynamic_cast a few layers up, and eventually an invariant. I am not sure we should hit this uassert at all (a separate discussion), but for sure it doesn't seem like we should be returning this status.

        Attachments

          Issue Links

          is depended on by

          Task - A task that needs to be done. SERVER-31392 Test changeStreams when an unsharded collection becomes sharded

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

          Task - A task that needs to be done. SERVER-31394 Create passthroughs of existing changeStream tests to run against sharded collections

          • Major - P3 - Major loss of function.
          • Closed
          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. SERVER-31746 Invariant failure on sharded $changeStream UUID mismatch

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

          Task - A task that needs to be done. SERVER-31707 Test changeStreams on a sharded collection where the shard doesn't know the collection is sharded

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

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-31847 Allow sharded $changeStream to continue if collection is dropped and resharded before documentKey is obtained

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

            Activity

              People

              • Votes:
                0 Vote for this issue
                Watchers:
                9 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: