Uploaded image for project: 'Lucene - Core'
  1. Lucene - Core
  2. LUCENE-4451

Memory leak per unique thread caused by RandomizedContext.contexts static map

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 4.1, 6.0
    • Component/s: None
    • Labels:
      None
    • Lucene Fields:
      New

      Description

      In digging on the hard-to-understand OOMEs with
      TestDirectPostingsFormat ... I found (thank you YourKit) that
      RandomizedContext (in randomizedtesting JAR) seems to be holding onto
      all threads created by the test. The test does create many very short
      lived threads (testing the thread safety of the postings format), in
      BasePostingsFormatTestCase.testTerms), and somehow these seem to tie
      up a lot (~100 MB) of RAM in RandomizedContext.contexts static map.

      For now I've disabled all thread testing (committed false && inside
      BPFTC.testTerms), but hopefully we can fix the root cause here, eg
      when a thread exits can we clear it from that map?

        Attachments

          Activity

            People

            • Assignee:
              dweiss Dawid Weiss
              Reporter:
              mikemccand Michael McCandless
            • Votes:
              0 Vote for this issue
              Watchers:
              3 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: