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  1. Lucene - Core
  2. LUCENE-1075

Possible thread hazard in IndexWriter.close(false)

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Details

    • Bug
    • Status: Closed
    • Minor
    • Resolution: Fixed
    • 2.3
    • 2.3
    • core/index
    • None
    • New

    Description

      Spinoff from this thread:

      http://www.gossamer-threads.com/lists/lucene/java-dev/55391

      On reviewing the code I found one case where an aborted merge (from
      calling close(false)) could write to files that a newly opened
      IndexWriter would also try to write to.

      I strengthened an existing test case in TestConcurrentMergeScheduler
      to tickle this case, and also modified MockRAMDirectory to throw an
      IOException if ever a file besides segments.gen is overwritten.

      However, strangely, I can't get an unhandled exception to occur during
      the test and I'm not sure why. Still I think this is a good defensive
      check so we should commit it.

      Attachments

        1. LUCENE-1075.patch
          4 kB
          Michael McCandless

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            mikemccand Michael McCandless
            mikemccand Michael McCandless
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            Dates

              Created:
              Updated:
              Resolved: