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  1. Lucene - Core
  2. LUCENE-2773

Don't create compound file for large segments by default

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.9.4, 3.0.3, 3.1, 4.0-ALPHA
    • Component/s: core/index
    • Labels:
      None
    • Lucene Fields:
      New

      Description

      Spinoff from LUCENE-2762.

      CFS is useful for keeping the open file count down. But, it costs
      some added time during indexing to build, and also ties up temporary
      disk space, causing eg a large spike on the final merge of an
      optimize.

      Since MergePolicy dictates which segments should be CFS, we can
      change it to only build CFS for "smallish" merges.

      I think we should also set a maxMergeMB by default so that very large
      merges aren't done.

        Attachments

        1. LUCENE-2773.patch
          13 kB
          Michael McCandless

          Activity

            People

            • Assignee:
              mikemccand Michael McCandless
              Reporter:
              mikemccand Michael McCandless
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              Dates

              • Created:
                Updated:
                Resolved: