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  1. Core Server
  2. SERVER-99728

[QE] Fix sharding-related issues with update/delete on sharded clusters

    • Type: Icon: Task Task
    • Resolution: Unresolved
    • Priority: Icon: Major - P3 Major - P3
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    • Affects Version/s: None
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    • Query Execution

      The goal of this ticket is to fix the known sharding issues with the write paths used when executing update/delete commands (or Batch/BulkWrite command containing update/delete operations) on sharded clusters.

      As of today (Jan 22 2025), here is the list of known issues in the Query codebase that need to be fixed:

      • SPM-3673: Fix updateOne by _id behavior re. chunk migrations for non-retryable writes
      • SPM-1631: updateMany without shard key
      • SERVER-20361: Improve the behaviour of multi-update/delete against a sharded collection
      • SERVER-47371: Chunk migration concurrent with multi-delete can cause matching documents to not be deleted
      • SERVER-86793: Retryable write may execute more than once in sharded clusters when collection namespace is reused after drop or rename
      • SERVER-54019: Retryable write can report it matched and modified more documents than it actually did upon retry, due to interceding chunk migration
      • SERVER-54127: Retryable write can execute more than once upon retry if a document moves between shards as a result of a shard key value update
      • SERVER-XXXXX: Retryable write for ordered:true can execute a write statement for which the preceding write statement had a write error upon retry due to lack of bookkeeping for non-matching writes and no-op updates. This issue was mentioned in the "Known situations where contracts unmet" section of https://docs.google.com/document/d/1ttXQx6ZNMnU4JNdQRhV3nHSPk40TiwZpfG9emqn9ee8/edit?pli=1&tab=t.0#heading=h.udifr2rdegml . I couldn't find an existing Jira ticket for this issue.
      • SERVER-YYYYY: UpdateOne/UpdateMany receive QueryPlanKilled in the presence of Resharding. This issue came from a discussion in November 2024 between kaloian.manassiev@mongodb.com and max.hirschhorn@mongodb.com . I couldn't find an existing Jira ticket for this issue.

            Assignee:
            Unassigned Unassigned
            Reporter:
            andrew.paroski@mongodb.com Drew Paroski
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              Created:
              Updated: