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

si_52_build_5020500_interimfix_14
si_52_build_5020500_interimfix_14
si_52_build_5020500_interimfix_14

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  DmiVisEventWarehouseQueue.Worker - ALERT RESCINDED - AFT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  DmiVisEventWarehouseQueue.Worker - ALERT RESCINDED - AFT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 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