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JR57853: YOU MIGHT EXPERIENCE ABNORMALLY HIGH CPU SUDDENLY AND WSVR0605W MESSAGES

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APAR status

  • Closed as program error.

Error description

  • In rare cases, IBM Business Process Manager (BPM) might use an
    abnormally amount of CPU. This issue occurs because of
    concurrent access to a HashMap, which is not synchronized.
    
    With a thread dump, you might see a few threads with the
    following stack that uses a lot of CPU:
    "WebContainer : 3" daemon prio=3 tid=0x00000001047be000
    nid=0x4a1
    runnable [0xffffffff40af2000]
    java.lang.Thread.State: RUNNABLE
    at java.util.HashMap.getEntry(HashMap.java:347)
    at java.util.HashMap.containsKey(HashMap.java:335)
    at
    com.lombardisoftware.server.ejb.persistence.versioning.BranchMan
    ager.upd
    ateUniqueBranchCount(BranchManager.java:728)
    at
    com.lombardisoftware.server.ejb.persistence.versioning.BranchMan
    ager.getContext(BranchManager.java:717)
    at
    com.lombardisoftware.server.ejb.persistence.versioning.BranchMan
    ager.readAccess(BranchManager.java:227)
    at
    com.lombardisoftware.server.ejb.persistence.PersistenceServicesC
    ore.getVersionSummaryId(PersistenceServicesCore.java:846)
    
    PRODUCTS AFFECTED
    IBM BPM Advanced
    IBM BPM Standard
    IBM BPM Express
    

Local fix

  • Restart the IBM BPM server.
    

Problem summary

  • No additional information is available.
    

Problem conclusion

  • A fix that synchronizes the HashMap object will be included in
    IBM BPM V8.5.7 cumulative fix 2017.06.
    

Temporary fix

Comments

APAR Information

  • APAR number

    JR57853

  • Reported component name

    BPM ADVANCED

  • Reported component ID

    5725C9400

  • Reported release

    855

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-05-17

  • Closed date

    2017-05-31

  • Last modified date

    2017-12-08

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    BPM ADVANCED

  • Fixed component ID

    5725C9400

Applicable component levels

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSFTN5","label":"IBM Business Process Manager Advanced"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"855","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
08 December 2017