PM80930: Oracle UCP XA Datasource results in UniversalConnectionPoolException:All connections

8.0.0.7: WebSphere Application Server V8.0 Fix Pack 7
8.0.0.8: WebSphere Application Server V8.0 Fix Pack 8
7.0.0.31: WebSphere Application Server V7.0 Fix Pack 31
7.0.0.33: WebSphere Application Server V7.0 Fix Pack 33
8.0.0.9: WebSphere Application Server V8.0 Fix Pack 9
7.0.0.35: WebSphere Application Server V7.0 Fix Pack 35
8.0.0.10: WebSphere Application Server V8.0 Fix Pack 10
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15
7.0.0.45: Java SDK 1.6 SR16 FP60 Cumulative Fix for WebSphere Application Server
7.0.0.31: Java SDK 1.6 SR15 Cumulative Fix for WebSphere Application Server
7.0.0.35: Java SDK 1.6 SR16 FP1 Cumulative Fix for WebSphere Application Server
7.0.0.37: Java SDK 1.6 SR16 FP3 Cumulative Fix for WebSphere Application Server
7.0.0.39: Java SDK 1.6 SR16 FP7 Cumulative Fix for WebSphere Application Server
7.0.0.41: Java SDK 1.6 SR16 FP20 Cumulative Fix for WebSphere Application Server
7.0.0.43: Java SDK 1.6 SR16 FP41 Cumulative Fix for WebSphere Application Server

APAR status

• Closed as program error.

Error description

• The cause of the issue is that during connection close and
  subsequent cleanup, the pooledConnection object in the
  WebSphere managed connection is not being destroyed and hence
  resulting in the UCP pool getting exhausted.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server                                      *
  ****************************************************************
  * PROBLEM DESCRIPTION: Using Oracle UCP XA Datasource can      *
  *                      exhaust the Universal Connection Pool   *
  *                      (UCP)                                   *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When using the Oracle UCP XA Datasource, that is,
  oracle.ucp.jdbc.PoolXADataSourceImpl in WebSphere Application
  Server, the Universal Connection Pool can get exhausted and
  result in the following exception :
  java.sql.SQLException: Exception occurred while getting
  connection: oracle.ucp.UniversalConnectionPoolException: All
  connections in the Universal Connection Pool are in
  useDSRA0010E: SQL State = null, Error Code = 29
  at
  oracle.ucp.util.UCPErrorHandler.newSQLException(UCPErrorHandler.
  java:488)
  at
  oracle.ucp.util.UCPErrorHandler.throwSQLException(UCPErrorHandle
  r.java:163)
  at
  oracle.ucp.jdbc.PoolXADataSourceImpl.getXAConnection(PoolXADataS
  ourceImpl.java:235)
  at
  oracle.ucp.jdbc.PoolXADataSourceImpl.getXAConnection(PoolXADataS
  ourceImpl.java:149)
  ..
  The problem was due to XA connection object not being
  wrapped within the managed connection and hence during
  the connection close and subsequent cleanup operation, the
  XA connection object was destroyed. This resulted in the
  Universal Connection Pool getting exhausted and resulted in
  the above exceptions.
  

Problem conclusion

• The adapter component has been fixed to ensure that the UCP XA
  connection objects are destroyed properly upon applications
  closing the connections.
  
  The fix for this APAR is currently targeted for inclusion in
  fix packs 7.0.0.31, 8.0.0.7 and 8.5.5.1. Please refer to the
  Recommended Updates page for delivery information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

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

  WEBS APP SERV N

• Fixed component ID

  5724H8800

Applicable component levels

• R700 PSY

     UP

• R800 PSY

     UP

• R850 PSY

     UP