Uploaded image for project: 'Kafka'
  1. Kafka
  2. KAFKA-2950

Performance regression in producer

    XMLWordPrintableJSON

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.9.0.1
    • Component/s: None
    • Labels:
      None

      Description

      For small messages the producer has gotten slower since the 0.8 release. E.g. for a single thread on linux sending 100 byte messages the decrease seems to be about 30%. The root cause seems to be that the new timeout we added for max.block.ms ends up doing about 4 more system calls to check the ellapsed time.

      The reason for these calls is to detect slow serializers or partitioners. But I think this is not worth the performance hit. I think we can say the config is only for blocking due to metadata or memory allocation.

        Attachments

          Activity

            People

            • Assignee:
              Unassigned
              Reporter:
              jkreps Jay Kreps
            • Votes:
              0 Vote for this issue
              Watchers:
              3 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: