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  1. Core Server
  2. SERVER-15344

Make replWriter thread pool size tunable

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Details

    • Improvement
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • 3.1.7
    • Replication
    • Fully Compatible
    • RPL 7 08/10/15

    Description

      #ifdef MONGO_PLATFORM_64
      		 
          const int ReplSetImpl::replWriterThreadCount = 16;
      		 
          const int ReplSetImpl::replPrefetcherThreadCount = 16;
      		 
      #else
      		 
          const int ReplSetImpl::replWriterThreadCount = 2;
      		 
          const int ReplSetImpl::replPrefetcherThreadCount = 2;
      		 
      #endif

      These are reasonable default, but we can make them tunable (exporting them via serverParameter) so that people can tune according to their needs. This also facilitates perf testing.

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          is depended on by

          Bug - A problem which impairs or prevents the functions of the product. SERVER-18908 Secondaries unable to keep up with primary under WiredTiger

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

          Task - A task that needs to be done. DOCS-6476 add new replWriterThreadCount param docs for 3.2

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

          Task - A task that needs to be done. SERVER-24292 DataReplicatorExternalState::multiApply should use replWriterThreadCount when creating writer thread pool

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

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              matt.dannenberg Matt Dannenberg
              davide.italiano Davide Italiano
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                Created:
                Updated:
                Resolved: