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Posted to derby-dev@db.apache.org by "Brett Bergquist (Updated) (JIRA)" <ji...@apache.org> on 2011/12/22 16:59:30 UTC
[jira] [Updated] (DERBY-5552) Derby threads hanging when using
ClientXADataSource and a deadlock or lock timeout occurs
[ https://issues.apache.org/jira/browse/DERBY-5552?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Brett Bergquist updated DERBY-5552:
-----------------------------------
Attachment: derby.log
Derby log file of showing the deadlock reporting and lock timeout reporting
> Derby threads hanging when using ClientXADataSource and a deadlock or lock timeout occurs
> -----------------------------------------------------------------------------------------
>
> Key: DERBY-5552
> URL: https://issues.apache.org/jira/browse/DERBY-5552
> Project: Derby
> Issue Type: Bug
> Components: Network Server
> Affects Versions: 10.8.1.2
> Environment: Solaris 10, Glassfish V2.1.1,
> Reporter: Brett Bergquist
> Priority: Blocker
> Attachments: derby.log
>
>
> The issue arrives when multiple XA transactions are done in parallel and there is either a lock timeout or a lock deadlock detected. When this happens the connection is leaked in the Glassfish connection pool and the client thread hangs in "org.apache.derby.client.netReply.fill(Reply.java:172)".
> Shutting down the app server fails because the thread has a lock in "org.apache.derby.client.net.NetConnection40" and another task is calling "org.apache.derby.client.ClientPooledConnection.close(ClientPooledConnection.java:214)" which is waiting for the lock.
> Killing the appsever using "kill" and then attempting to shutdown Derby network server causes the Network Server to hang. One of the threads hangs waiting for a lock at "org.apache.derby.impl.drda.NeworkServerControlImpl.removeFromSessionTable(NetworkServerControlImpl.java:1525)" and the "main" thread has this locked at "org.apache.derby.impl.drda.NetworkServerControlImpl.executeWork(NetworkServerControlImpl.java:2242)" and it itself is waiting for a lock which belongs to a thread that is stuck at "org.apache.derby.impl.services.locks.ActiveLock.waitForGrant(ActiveLock.java:118) which is in the TIMED_WAITING state.
> Only by killing the Network Server using "kill" is possible at this point.
> There are transactions left even though all clients have been removed.
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