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  1. Kafka
  2. KAFKA-1351

String.format is very expensive in Scala

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Details

    • Bug
    • Status: Open
    • Major
    • Resolution: Unresolved
    • 0.7.2, 0.8.0, 0.8.1
    • None
    • core

    Description

      As found in KAFKA-1350, logging is causing significant overhead in the performance of a Kafka server. There are several info statements that use String.format which is particularly expensive. We should investigate adding our own version of String.format that merely uses string concatenation under the covers.

      Attachments

        1. KAFKA-1351.patch
          69 kB
          Ivan Lyutov
        2. KAFKA-1351_2014-04-09_15:40:11.patch
          290 kB
          Ivan Lyutov
        3. KAFKA-1351_2014-04-07_18:02:18.patch
          2 kB
          Ivan Lyutov

        Issue Links

          is blocked by

          Bug - A problem which impairs or prevents the functions of the product. KAFKA-1352 Reduce logging on the server

          • Major - Major loss of function.
          • Reopened
          is duplicated by

          Improvement - An improvement or enhancement to an existing feature or task. KAFKA-1607 Use of String format method in debug statements

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved
          is related to

          Improvement - An improvement or enhancement to an existing feature or task. KAFKA-2285 Logging trait obfuscates call site information

          • Major - Major loss of function.
          • Open

          Activity

            People

              Unassigned Unassigned
              nehanarkhede Neha Narkhede
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              Dates

                Created:
                Updated: