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  1. Apache Cassandra
  2. CASSANDRA-8477

CMS GC can not recycle objects

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Details

    • Bug
    • Status: Resolved
    • Normal
    • Resolution: Duplicate
    • None
    • None
    • None
    • Normal

    Description

      I have a trouble in my cluster that CMS full gc can not reduce the size of old gen. Days ago I post this problem to the maillist, people think it will be solved by tuning the gc setting, however it doesn't work for me.

      Then I saw a similar bug in CASSANDRA-8447, but benedict think it is not related. With the jstack on https://gist.github.com/yangzhe1991/755ea2a10520be1fe59a, benedict find a bug and resolved it in CASSANDRA-8459. So I build a latest version on 2.1 branch and run the SNAPSHOT version on the nodes with gc trouble.

      However, there is still the gc issue. So I think opening a new tick and post more information is a good idea. Thanks for helping me.

      Attachments

        1. cassandra.yaml
          34 kB
          Phil Yang
        2. histo.txt
          228 kB
          Phil Yang
        3. jstack.txt
          407 kB
          Phil Yang
        4. log1.txt
          22 kB
          Phil Yang
        5. log2.txt
          1.01 MB
          Phil Yang
        6. system.log
          1.20 MB
          Phil Yang
        7. system.log.2014-12-15_1226
          4.11 MB
          Phil Yang

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              slebresne Sylvain Lebresne
              yangzhe1991 Phil Yang
              Sylvain Lebresne
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              Dates

                Created:
                Updated:
                Resolved: