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IT16084: THE SYSTEM BLOCKS THE DMI VISIBILITY QUEUES THAT ARE USED TO WRITE COMMUNICATION EVENTS TO THE DATABASE

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • The DMI visibility queues used to write communication events to
    the database can block sometimes.
    
    visibility.log.D20160623.T084929:[2016-06-23 08:54:39.714] ALL
    DmiVisEventWarehouseQueue.Worker - ALERT RESCINDED - AFT
    Warehouse input BoundedQueue operates below capacity. The
    normal batch sleep interval is re-established.
    
    
    visibility.log.D20160623.T084929:[2016-06-23 08:55:54.744] ALL
    DmiVisEventWarehouseQueue.Worker - ALERT ISSUED - AFT Warehouse
    input BoundedQueue reaches 90% capacity. The Warehouse
    temporarily suspends to drain the events from queue. The sleep
    interval to drain the queue to avoid any abrupt shutdown of DMI
    event processing.
    
    visibility.log.D20160623.T085603:[2016-06-23 08:58:24.804] ALL
    DmiVisEventWarehouseQueue.Worker - ALERT ISSUED - AFT Warehouse
    input BoundedQueue has reached capacity. Client threads are
    blocking. The Warehouse will temporarily suspend The sleep
    interval and work full time to handle this spike in event
    activity.
    
    visibility.log.D20160623.T085603:[2016-06-23 09:01:15.065] ALL
    DmiVisEventWarehouseQueue.Worker - ALERT RESCINDED - AFT
    Warehouse input BoundedQueue is operating below capacity. The
    normal batch sleep interval is now re-established.
    

Local fix

  • RTC - 503268
    
    
    Workaround:
    
    Increase the size and number of the DMI visibility queues can
    solve the problem if the communications sessions originate from
    different adapters and users. However under certain conditions
    only one queue is used. For example if multiple SFTP operations
    are executed during the same session only one queue will be
    used.
    

Problem summary

  • Users Affected:
    All
    
    Problem Description:
    The system blocks the DMI visibility queues that are used to
    write communication events to the database.
    
    Platforms Affected:
    All
    

Problem conclusion

  • Resolution Summary:
    
    A code fix is provided.
    
    Delivered In:
    5020500_19
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT16084

  • Reported component name

    STR FILE GATEWA

  • Reported component ID

    5725D0700

  • Reported release

    226

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-07-12

  • Closed date

    2016-09-27

  • Last modified date

    2018-09-12

  • 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 FILE GATEWA

  • Fixed component ID

    5725D0700

Applicable component levels

[{"Line of Business":{"code":"LOB02","label":"AI Applications"},"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SS4TGX","label":"IBM Sterling File Gateway"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"2.2"}]

Document Information

Modified date:
03 March 2021