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Posted to dev@openjpa.apache.org by "Daniel Persson (JIRA)" <ji...@apache.org> on 2012/07/10 23:16:35 UTC
[jira] [Updated] (OPENJPA-2193) Nullpointer exception when
persisting object during high load
[ https://issues.apache.org/jira/browse/OPENJPA-2193?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniel Persson updated OPENJPA-2193:
------------------------------------
Attachment: patch-tomcat-pooling-fix.patch
I thought the problem where when the pool reset the connection before the entity manager could update the entity.
My solution in this patch is to reconnect if the connection is null during the begin of an transaction.
Might be the wrong solution to the problem but it solved the issue for me. Please advice if you prefer an other solution..
Best regards
Daniel
> Nullpointer exception when persisting object during high load
> -------------------------------------------------------------
>
> Key: OPENJPA-2193
> URL: https://issues.apache.org/jira/browse/OPENJPA-2193
> Project: OpenJPA
> Issue Type: Bug
> Reporter: Daniel Persson
> Priority: Minor
> Attachments: patch-tomcat-pooling-fix.patch
>
>
> During high load and many persists _conn is null during commit.
> Caused by: <openjpa-2.2.0-r422266:1244990 nonfatal general error> org.apache.openjpa.persistence.PersistenceException: null
> at org.apache.openjpa.kernel.BrokerImpl.afterCompletion(BrokerImpl.java:2034)
> at org.apache.openjpa.kernel.LocalManagedRuntime.commit(LocalManagedRuntime.java:94)
> at org.apache.openjpa.kernel.BrokerImpl.commit(BrokerImpl.java:1514)
> at org.apache.openjpa.kernel.DelegatingBroker.commit(DelegatingBroker.java:933)
> at org.apache.openjpa.persistence.EntityManagerImpl.commit(EntityManagerImpl.java:570)
> ... 29 more
> Caused by: java.lang.NullPointerException
> at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.commit(JDBCStoreManager.java:196)
> at org.apache.openjpa.kernel.DelegatingStoreManager.commit(DelegatingStoreManager.java:95)
> at org.apache.openjpa.datacache.DataCacheStoreManager.commit(DataCacheStoreManager.java:88)
> at org.apache.openjpa.kernel.DelegatingStoreManager.commit(DelegatingStoreManager.java:95)
> at org.apache.openjpa.kernel.BrokerImpl.endStoreManagerTransaction(BrokerImpl.java:1471)
> at org.apache.openjpa.kernel.BrokerImpl.endTransaction(BrokerImpl.java:2351)
> at org.apache.openjpa.kernel.BrokerImpl.afterCompletion(BrokerImpl.java:2010)
> ... 33 more
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