Server errors on large upsertedIds in collection bulk write

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    • Type: Bug
    • Resolution: Unresolved
    • Priority: Major - P3
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      1. Send upserts in a collection bulk write.
      2. Each ReplaceOne filters a ~2 MB _id.
      3. The bulk write message is ~36 MB in total size to fit within the maxMessageSizeBytes.

      Repro code in golang and python

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      Send upserts in a collection bulk write. Each  ReplaceOne  filters a ~2 MB  _id . The bulk write message is ~36 MB in total size to fit within the  maxMessageSizeBytes . Repro code in golang and python
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      Sending 9 upserts, each with a 2 MB _id in the filter, in a collection bulk write causes a server error:

      BulkWrite(BSONObjectTooLarge) BSON size limit hit while building Message. Size: 18874704 (0x1200150); maxSize: 16793600(16MB)

      It has been confirmed on a standalone local 8.0 and 8.1 server.

            Assignee:
            Unassigned
            Reporter:
            Qingyang Hu
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              Created:
              Updated: