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  1. Infinispan
  2. ISPN-6518

org.infinispan.transaction.xa.GlobalTransaction objects are not cleared properly

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    Description

      The issue was spotted in 6 hr soak tests and affects both distributed & replicated mode.

      The test shows steady increase in heap usage. After closer examination of jfr recording, it seems that at the end of the test there are almost 22M live org.infinispan.transaction.xa.GlobalTransaction instances in the heap, totaling 667 MB in size.

      Top heap consumers (final stage of the test)
      Class Instances Size(bytes) Percentage of Heap(%)
      byte[] 60,218 830,445,604 35.168

      Class Instances Size(bytes) Percentage of Heap(%)
      org.infinispan.transaction.xa.GlobalTransaction 21,846,176 699,077,616 29.605

      Class Instances Size(bytes) Percentage of Heap(%)
      java.util.concurrent.ConcurrentHashMap$Node 21,795,718 697,462,992 29.537

      Class Instances Size(bytes) Percentage of Heap(%)
      java.util.concurrent.ConcurrentHashMap$Node[] 129 134,352,464 5.69

      Transaction configuration:
      <transaction transaction-manager-lookup="org.infinispan.transaction.lookup.GenericTransactionManagerLookup" mode="NON_DURABLE_XA" />

      Please let me know if you'd like me to share more details from jfr recording.

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          is caused by

          Bug - A problem that impairs or prevents the functions of the product. ISPN-5623 Retried prepare commands do not wait for backup locks

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed
          is cloned by

          Bug - A problem that impairs or prevents the functions of the product. JBEAP-4624 org.infinispan.transaction.xa.GlobalTransaction objects are not cleared properly

          • Critical - To be worked on immediately following BLOCKER issues.
          • Closed
          is incorporated by

          Task - Represents a small unit of work that is not end-user facing. ISPN-6433 Backport to 8.1.x branch

          • Blocker - To be worked above all other priorities. This term is chosen when the severity of the issue is very high, has no workaround, or the effort for the change is comparatively low. Issues that may be very publicly visible and could generate significant media attention may also drive a higher priority.
          • Closed
          relates to

          Bug - A problem that impairs or prevents the functions of the product. JDG-221 org.infinispan.transaction.xa.GlobalTransaction objects are not cleared properly

          • Blocker - To be worked above all other priorities. This term is chosen when the severity of the issue is very high, has no workaround, or the effort for the change is comparatively low. Issues that may be very publicly visible and could generate significant media attention may also drive a higher priority.
          • Closed

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              pruivo@redhat.com Pedro Ruivo
              mcimbora_jira Matej Čimbora (Inactive)
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