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  1. Core Server
  2. SERVER-12950

Ordered write commands in mongos do not correctly break batches

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Details

    • Bug
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • 2.6.0-rc0
    • 2.6.0-rc1
    • Sharding
    • None
    • ALL
    • 0

    Description

      There is a batch per-op, which is very slow for large number of ops. Correct behavior is to figure out how many of the next ops can go to the same shard, then send all those in a batch. (Ops that go to multiple shards must be sent on their own in ordered mode.)

      Current workaround is to use unordered batches for performance testing.

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        Issue Links

          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. SERVER-10723 Bulk insert is slow in sharded environment

          • Critical - P2 - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. SERVER-12787 Strange performance characteristics of write ops in shell

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

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            People

              greg_10gen Greg Studer
              greg_10gen Greg Studer
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              Dates

                Created:
                Updated:
                Resolved: