PQ66574, 4.03, 4.04: In a multinode the plug-in regen does not complete
 Downloadable files
 
Abstract
WebSphere® Application Server users on 4.0.3 or later when the plug-in is regenerated in a multinode environment, it does not complete when one node in the domain is down.
 
Download Description
Problem: After PTF 3 was applied, the nanny.trace file contained multiple instaces of the message "NMSV0602E: Naming Service unavailable. A communications error occurred." and when any one node is down, unable to successfully regen the plug-in. PQ61462 did not affect the situation.

Error in the nanny's file:
[5/14/02 14:53:17:370 CDT] f4cb Nanny E error getting nodeHome for : ejsadmin/homes/NodeHome : java.lang.NullPointerException
[5/14/02 14:53:18:387 CDT] f4cb WsnInitCtxFac W NMSV0602E:
Naming Service unavailable. A communications error occurred.
[5/14/02 14:53:18:388 CDT] f4cb Nanny W SMTL0012W:
Waiting for initial context javax.naming.CommunicationException:
Caught CORBA.COMM_FAILURE when resolving initial
reference=WsnNameService. Root exception is org.omg.CORBA.COMM_FAILURE: minor code: 3 completed: No

Error in the XML Export:
ExceptionUtil X CNTR0019E: Non-application exception occurred while processing method findAll: InvalidBeanOStateException(current = DESTROYED, expected = POOLED)
at
com.ibm.ejs.container.EJSHome.getFinderBeanO(EJSHome.java(Compiled Code))

ExceptionUtil X CNTR0020E: Non-application exception occurred while processing method listInstances on bean BeanId(admin#repository.jar#ClientAccess, null):
java.rmi.RemoteException: ; nested exception is: javax.transaction.TransactionRolledbackException: CORBA TRANSACTION_ROLLEDBACK 0 No; nested exception is: org.omg.CORBA.TRANSACTION_ROLLEDBACK:
com.ibm.websphere.csi.CSITransactionRolledbackException: null; nested exception is:
InvalidBeanOStateException(current = DESTROYED, expected = POOLED)

and the plug-in trace shows:
[7/22/02 17:27:41:080 CDT] 40405c3 AEPluginCfg W PLGN0063W: An exception occurred while generating the plugin configuration for module default_app. The plugin configuration file will not contain an entry for this module.

and the dbcheckprop.sh generates:
COM.ibm.db2.jdbc.DB2Exception: [IBM][CLI Driver][DB2/6000] SQL0204N
"WAS40.TYPE_TABLE" is an undefined name. SQLSTATE=42704
at
COM.ibm.db2.jdbc.app.SQLExceptionGenerator.throw_SQLException(SQLExceptionGenerator.java:269)
at
COM.ibm.db2.jdbc.app.SQLExceptionGenerator.throw_SQLException(SQLExceptionGenerator.java:206)
at
COM.ibm.db2.jdbc.app.SQLExceptionGenerator.check_return_code(SQLExceptionGenerator.java:457)
at
COM.ibm.db2.jdbc.app.DB2Statement.execute2(DB2Statement.java:617)
at
COM.ibm.db2.jdbc.app.DB2Statement.executeQuery(DB2Statement.java:434)
at
com.ibm.ws.dbcheck.util.WriteDBProps.readDb(WriteDBProps.java:110)
at
com.ibm.ws.dbcheck.util.WriteDBProps.write(WriteDBProps.java:193)
at
com.ibm.ws.dbcheck.util.WriteDBProps.main(WriteDBProps.java:72)

RECOMMENDATION:
Regenerate plug-in does not complete and fails if any node is down in the multinode environment.

PROBLEM CONCLUSION:
This fix is a cross-component fix between System Management and Engine to improve code logic to detect and skip a node if it is down and also properly handle the exceptions when this problem occurs.

These improvements prevent the entire plug-in regen procedure from failing completely and provide more graceful error handling.
 
Prerequisites
None
 
 
Installation instructions
Please refer to the readme for detailed for installation instructions.
 
URL LANGUAGE SIZE(Bytes)
Readme - 4.0.3 US English 11939
Readme - 4.0.4 US English 2147
 
Download package
What is DD?
DOWNLOAD RELEASE DATE LANGUAGE SIZE(Bytes) Download Options
PQ66574 - 4.0.3 9/26/2002 US English 1264632 FTP DD
PQ66574 - 4.0.4 10/2/2002 US English 1264427 FTP DD
 
Technical support
1-800-426-7378 U.S. Only
 
Problems (APARs) fixed
PQ66574
 
 


Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server > Plug-in
Operating system(s): HP-UX
Software version: 4.0.4
Software edition:
Reference #: 4001840
IBM Group: Software Group
Modified date: May 26, 2004