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  1. Core Server
  2. SERVER-46255

establishCursors/AsyncRequestsSender can leave dangling request if interrupted

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Details

    • Bug
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • 4.4.0-rc4, 4.7.0
    • Networking, Sharding
    • None
    • Fully Compatible
    • ALL
    • v4.4
    • Query 2020-03-09, Query 2020-03-23, Query 2020-04-06, Query 2020-04-20, Query 2020-05-04

    Description

      If the AsyncRequestsSender is interrupted after sending one or more requests, it may not be able to gracefully cancel that request. establishCursors() has some cleanup logic to mitigate this, but I'm pretty sure that if we're interrupted then this line will also throw the interrupted error, and we won't be able to clean up our cursors.

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        Issue Links

          depends on

          New Feature - A new feature of the product, which has yet to be developed. SERVER-46767 Provide a mapping from OperationKey to CursorID

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

          Bug - A problem which impairs or prevents the functions of the product. SERVER-48308 Avoid leaking exceptions in establishCursors cleanup callback

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

          Task - A task that needs to be done. SERVER-45541 Test killing an aggregation operation with a $unionWith stage

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

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-44167 Add OperationKey to OperationContext and allow "clientOperationKey" field with commands

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

          Bug - A problem which impairs or prevents the functions of the product. SERVER-65329 Ensure cursors are not leaked when hedging reads

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

          Bug - A problem which impairs or prevents the functions of the product. SERVER-46648 Cancel pending requests upon receiving the first response

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

          Bug - A problem which impairs or prevents the functions of the product. SERVER-46740 establishCursors() must always drain the AsyncRequestsSender::_baton

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

          Bug - A problem which impairs or prevents the functions of the product. SERVER-62710 AsyncRequestsMerger won't attempt to cleanup shard cursors when deadline is exceeded

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

          Task - A task that needs to be done. SERVER-50308 Adjust debug log message when cleaning up failed cursor establishment

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

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-47261 AsyncRequestSender should populate clientOperationKey

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

          Activity

            People

              nicholas.zolnierz@mongodb.com Nicholas Zolnierz
              charlie.swanson@mongodb.com Charlie Swanson
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              Dates

                Created:
                Updated:
                Resolved: