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  1. JBoss Enterprise Application Platform 4 and 5
  2. JBPAPP-7084

Seam and JBoss-el upgrade due "High CPU usage because of concurrent use of WeakHashmap"

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Details

    • Bug
    • Resolution: Done
    • Major
    • EAP_EWP 5.1.2 ER1
    • EAP_EWP 5.1.0, EAP_EWP 5.1.1
    • Seam
    • None
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      The org.apache.el.util.concurrentcache class did not synchronize requests for concurrent access to WeakHashMap. In some cases, this caused an infinite loop, which consumed excessive CPU memory. The underlying issue has now been resolved and access to WeakHashMap in the org.jboss.el.util.concurrentcache class is now synchronized.
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      The org.apache.el.util.concurrentcache class did not synchronize requests for concurrent access to WeakHashMap. In some cases, this caused an infinite loop, which consumed excessive CPU memory. The underlying issue has now been resolved and access to WeakHashMap in the org.jboss.el.util.concurrentcache class is now synchronized.
    • Documented as Resolved Issue
    • NEW

    Description

      Concurrent access to WeakHashmap by org.jboss.el.util.ConcurrentCache causes High CPU.
      This issue is similar to https://issues.jboss.org/browse/JBWEB-185 because they use the same codebase.

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          relates to

          Bug - A problem that impairs or prevents the functions of the product. JBPAPP-5343 Concurrent access to WeakHashMap in ConcurrentCache causes infinite loop, 100% CPU usage

          • 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

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              mnovotny@redhat.com Marek Novotny
              mark_v_torres Mark Torres (Inactive)
              Eva Kopalova Eva Kopalova (Inactive)
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              Dates

                Created:
                Updated:
                Resolved: