Direct links to fixes
APAR status
Closed as program error.
Error description
If there are many Event Manager tasks scheduled for the same second, deadlock exceptions might occur in clustered environments. These exceptions could lead to scheduled Event Manager tasks not running although their timers are due. You might see a stack trace that is similar to the following stack trace: DB2 SQL Error: SQLCODE=-911, SQLSTATE=40001, SQLERRMC=2, DRIVER=4.13.80; nested exception is com.ibm.db2.jcc.am.SqlTransactionRollbackException: DB2 SQL Error: SQLCODE=-911, SQLSTATE=40001, SQLERRMC=2, DRIVER=4.13.80 at org.springframework.jdbc.support. SQLExceptionSubclassTranslator.translate (SQLExceptionSubclassTranslator.java:52) at org.springframework.jdbc.support. SQLErrorCodeSQLExceptionTranslator.translate (SQLErrorCodeSQLExceptionTranslator.java:237) at org.springframework.jdbc.core.JdbcTemplate.execute (JdbcTemplate.java:607) at org.springframework.jdbc.core.JdbcTemplate.query (JdbcTemplate.java:641) at org.springframework.jdbc.core.JdbcTemplate.query (JdbcTemplate.java:670) at org.springframework.jdbc.core.JdbcTemplate.query (JdbcTemplate.java:678) at com.lombardisoftware.server.scheduler.Engine. loadTasksIfOwnerInternal(Engine.java:1475) at com.lombardisoftware.server.scheduler.Engine. access$1700(Engine.java:103) at com.lombardisoftware.server.scheduler.Engine$12. doInTransaction(Engine.java:1347) at com.lombardisoftware.server.scheduler.Engine$12. doInTransaction(Engine.java:1344) at com.lombardisoftware.server.core.TXCommand$2.call (TXCommand.java:85) at com.lombardisoftware.utility.spring. ProgrammaticTransactionSupport$1.doInTransaction (ProgrammaticTransactionSupport.java:451) at org.springframework.transaction.jta. WebSphereUowTransactionManager$UOWActionAdapter.run (WebSphereUowTransactionManager.java:306) at com.ibm.ws.uow.embeddable.EmbeddableUOWManagerImpl. runUnderNewUOW(EmbeddableUOWManagerImpl.java:791) at com.ibm.ws.uow.embeddable.EmbeddableUOWManagerImpl. runUnderUOW(EmbeddableUOWManagerImpl.java:370) at org.springframework.transaction.jta. WebSphereUowTransactionManager. execute(WebSphereUowTransactionManager.java:252) at com.lombardisoftware.utility.spring. ProgrammaticTransactionSupport.executeInNewTransaction (ProgrammaticTransactionSupport.java:445) at com.lombardisoftware.utility.spring. ProgrammaticTransactionSupport.execute (ProgrammaticTransactionSupport.java:306) at com.lombardisoftware.server.core.TXCommand. executeInDeadlockRetryLoop(TXCommand.java:83) at com.lombardisoftware.server.scheduler.Engine. loadTasksIfOwner(Engine.java:1344) at com.lombardisoftware.server.scheduler.Engine.executeTasks (Engine.java:529)
Local fix
Stop and restart the AppTarget cluster.
Problem summary
This issue occurs wherever a problem with the database occurs while the Event Manager acquires and tries to load Event Manager tasks.
Problem conclusion
A fix is/will be available for IBM BPM that prevents the deadlock. On Fix Central (http://www.ibm.com/support/fixcentral), search for JR53730: 1. Select IBM Business Process Manager with your edition from the product selector, the installed version to the fix pack level, and your platform, and then click Continue. 2. Select APAR or SPR, enter JR53730, and click Continue. When you download fix packages, ensure that you also download the readme file for each fix. Review each readme file for additional installation instructions and information about the fix.
Temporary fix
Not applicable
Comments
APAR Information
APAR number
JR53730
Reported component name
BPM ADVANCED
Reported component ID
5725C9400
Reported release
855
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2015-06-30
Closed date
2015-08-28
Last modified date
2015-11-05
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 STANDARD
Fixed component ID
5725C9500
Applicable component levels
R855 PSY
UP
R856 PSY
UP
[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSFTDH","label":"IBM Business Process Manager Standard"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"855","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
16 October 2021