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  1. Cassandra
  2. CASSANDRA-14748

Recycler$WeakOrderQueue occupies Heap

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    Details

    • Type: Bug
    • Status: Open
    • Priority: Normal
    • Resolution: Unresolved
    • Fix Version/s: 4.0, 3.11.x, 4.0-rc
    • Component/s: Legacy/Core
    • Labels:
      None
    • Environment:

      The netty Cassandra using is netty-all-4.0.39.Final.jar

    • Severity:
      Normal

      Description

      Heap constantly high on some of the nodes in the cluster, I dump the heap and open it through Eclipse Memory Analyzer, looks like Recycler$WeakOrderQueue occupies most of the heap. 

       

      Package Retained Heap Retained Heap, %
      1. Top Dominators
      <all> 7,078,140,136 100.00% 379,627
      io 5,665,035,800 80.04% 13,306
      netty 5,665,035,800 80.04% 13,306
      util 5,568,107,344 78.67% 2,965
      Recycler$WeakOrderQueue 4,950,021,544 69.93% 2,169

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            • Assignee:
              Unassigned
              Reporter:
              haoxu@paloaltonetworks.com HX
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              Dates

              • Created:
                Updated: