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  1. Core Server
  2. SERVER-56023

listCollections can return empty metadata for a collection which has been concurrently dropped

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Details

    • Bug
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • 5.0.0-rc0, 5.1.0-rc0
    • None
    • None
    • Fully Compatible
    • ALL
    • v5.0
    • Execution Team 2021-05-17, Execution Team 2021-05-31
    • 158

    Description

      This is very similar to SERVER-56002, whereby a lock-free operation attempts to access the DurableCatalog while a concurrent operation is modifying it. For listCollections, its possible to lookup the collection in the CollectionCatalog just before a collection has been dropped, which means it no longer has an entry in the DurableCatalog. Then, when listCollections proceeds to read the collection options, it receives an empty object and returns it in the command response.

      One possible downstream impact for this is a failed shardCollection command when try to extract the UUID of the collection to shard.

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          is depended on by

          Bug - A problem which impairs or prevents the functions of the product. SERVER-55352 Missing uuid in collection info returned by TenantDatabaseCloner's listCollections command

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

          Bug - A problem which impairs or prevents the functions of the product. SERVER-56002 listIndexes can read partial state from renameCollection

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

          Bug - A problem which impairs or prevents the functions of the product. SERVER-56877 insert operations may fail to set index to multikey after aborted multikey catalog update

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

          Bug - A problem which impairs or prevents the functions of the product. SERVER-57083 Coverity analysis defect 120111: Parse warning

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

          Bug - A problem which impairs or prevents the functions of the product. SERVER-57324 dropDatabase should not modify CollectionCatalog inplace

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

          Bug - A problem which impairs or prevents the functions of the product. SERVER-57775 collection metadata for multikey not removed after WriteConflictException from durable catalog update

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

          Task - A task that needs to be done. SERVER-56999 Unify CollectionImpl creation interface

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

          Task - A task that needs to be done. SERVER-57127 Refactor multikey and other state out of IndexCatalogEntry

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

          Activity

            People

              henrik.edin@mongodb.com Henrik Edin
              nicholas.zolnierz@mongodb.com Nicholas Zolnierz
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              Dates

                Created:
                Updated:
                Resolved: