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From Claus Köll (JIRA) <j...@apache.org>
Subject [jira] [Commented] (JCR-3682) Better Exception Handling in TransactionContext to handle unchecked exceptions
Date Thu, 24 Oct 2013 07:25:07 GMT

    [ https://issues.apache.org/jira/browse/JCR-3682?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13803947#comment-13803947
] 

Claus Köll commented on JCR-3682:
---------------------------------

I will adjust the code in TransactionContext to catch also unchecked exceptions to prevent
locks

> Better Exception Handling in TransactionContext to handle unchecked exceptions
> ------------------------------------------------------------------------------
>
>                 Key: JCR-3682
>                 URL: https://issues.apache.org/jira/browse/JCR-3682
>             Project: Jackrabbit Content Repository
>          Issue Type: Bug
>          Components: jackrabbit-core, transactions
>    Affects Versions: 2.6.4, 2.7.1
>            Reporter: Claus Köll
>            Assignee: Claus Köll
>             Fix For: 2.6.5, 2.7.2
>
>         Attachments: JCR-3682.patch
>
>
> If we get a unexpected exception from the jdbc driver the VersioningLock from the versionMgr.getXAResourceEnd()
XAResource will never be released so the repository is locked forever. We should catch every
Exception in BundleDbPersistenceManager.readBundle() to prevent that situation.
> Following Stacktrace shows the problem ...
> Caused by: java.lang.ArrayIndexOutOfBoundsException
> 	at oracle.jdbc.driver.T4CSocketInputStreamWrapper.readLongMSB(T4CSocketInputStreamWrapper.java:201)
> 	at oracle.jdbc.driver.T4CMAREngine.buffer2Value(T4CMAREngine.java:2374)
> 	at oracle.jdbc.driver.T4CMAREngine.unmarshalUB4(T4CMAREngine.java:1310)
> 	at oracle.jdbc.driver.T4CTTIoer.unmarshal(T4CTTIoer.java:257)
> 	at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:447)
> 	at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:192)
> 	at oracle.jdbc.driver.T4C8TTILob.read(T4C8TTILob.java:146)
> 	at oracle.jdbc.driver.T4CConnection.getBytes(T4CConnection.java:2392)
> 	at oracle.sql.BLOB.getBytes(BLOB.java:348)
> 	at oracle.jdbc.driver.OracleBlobInputStream.needBytes(OracleBlobInputStream.java:181)
> 	at oracle.jdbc.driver.OracleBufferedStream.readInternal(OracleBufferedStream.java:174)
> 	at oracle.jdbc.driver.OracleBufferedStream.read(OracleBufferedStream.java:143)
> 	at org.apache.commons.io.input.ProxyInputStream.read(ProxyInputStream.java:75)
> 	at org.apache.commons.io.input.CountingInputStream.read(CountingInputStream.java:74)
> 	at java.io.DataInputStream.readFully(DataInputStream.java:189)
> 	at java.io.DataInputStream.readFully(DataInputStream.java:163)
> 	at org.apache.jackrabbit.core.persistence.util.BundleReader.readBytes(BundleReader.java:669)
> 	at org.apache.jackrabbit.core.persistence.util.BundleReader.readName(BundleReader.java:520)
> 	at org.apache.jackrabbit.core.persistence.util.BundleReader.readQName(BundleReader.java:469)
> 	at org.apache.jackrabbit.core.persistence.util.BundleReader.readBundleNew(BundleReader.java:194)
> 	at org.apache.jackrabbit.core.persistence.util.BundleReader.readBundle(BundleReader.java:145)
> 	at org.apache.jackrabbit.core.persistence.util.BundleBinding.readBundle(BundleBinding.java:152)
> 	at org.apache.jackrabbit.core.persistence.pool.BundleDbPersistenceManager.readBundle(BundleDbPersistenceManager.java:927)
> 	at org.apache.jackrabbit.core.persistence.pool.BundleDbPersistenceManager.loadBundle(BundleDbPersistenceManager.java:889)
> 	at org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.getBundleCacheMiss(AbstractBundlePersistenceManager.java:766)
> 	at org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.getBundle(AbstractBundlePersistenceManager.java:749)
> 	at org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.storeInternal(AbstractBundlePersistenceManager.java:633)
> 	at org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.store(AbstractBundlePersistenceManager.java:590)
> 	at org.apache.jackrabbit.core.persistence.pool.BundleDbPersistenceManager.store(BundleDbPersistenceManager.java:482)
> 	at org.apache.jackrabbit.core.state.SharedItemStateManager$Update.end(SharedItemStateManager.java:788)
> 	at org.apache.jackrabbit.core.state.XAItemStateManager.commit(XAItemStateManager.java:181)
> 	at org.apache.jackrabbit.core.TransactionContext.commit(TransactionContext.java:195)
> 	at org.apache.jackrabbit.core.XASessionImpl.commit(XASessionImpl.java:326)
> 	at org.apache.jackrabbit.jca.TransactionBoundXAResource.commit(TransactionBoundXAResource.java:49)
> 	at com.ibm.ejs.j2c.XATransactionWrapper.commit(XATransactionWrapper.java:490)



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