IBM Support

IT32696: MANUALLY INTERRUPTED BUSINESS PROCESSES OCCUR FROM A CLUSTER UNDER LOAD

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APAR status

  • Closed as program error.

Error description

  • Manually interrupted BPs could result from a cluster under load
    when JGroups messages fail between nodes. JGroup
    messages could fail to be received by nodes when JGroup Messages
    are
    sent to IP and Port.
    

Local fix

  • B2BISFG-51981
    

Problem summary

  • Users Affected:
    B2BI Cluster configurations
    
    Problem Description:
    Under heavy workflow load some business processes could be left
    in manual
    interrupted state at step 0.  These manually interrupted
    business processes
    were sent to other nodes in the cluster using jgroups. However,
    under load, the jgroups messaging could result in messages that
    would fail to be delivered to the destination node, resulting in
    retries and possible droppped messages within jgroups.  Under
    heavy load the dropped message failure could cascade, resulting
    in an interrupted state.
    
    
    Platforms Affected:
    All
    

Problem conclusion

  • RESOLUTION SUMMARY:
    A code fix is provided.
    Changed the jgroups message destination to use the jgroup
    address from the workflow jchannel, rather than the ip and port
    of the jgroup.  The workflow channel destination address is now
    broadcast, stored, and available for each node to use to
    distribute messages within the cluster.
       
    DELIVERED IN:
    6000203
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT32696

  • Reported component name

    STR B2B INTEGRA

  • Reported component ID

    5725D0600

  • Reported release

    601

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2020-04-29

  • Closed date

    2020-11-26

  • Last modified date

    2020-12-01

  • 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

    STR B2B INTEGRA

  • Fixed component ID

    5725D0600

Applicable component levels

[{"Line of Business":{"code":"LOB02","label":"AI Applications"},"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SS3JSW","label":"IBM Sterling B2B Integrator"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"601"}]

Document Information

Modified date:
02 December 2020