shutdown deadlock
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Key: JCR-2232
URL: https://issues.apache.org/jira/browse/JCR-2232
Project: Jackrabbit Content Repository
Issue Type: Bug
Components: clustering, jackrabbit-core
Affects Versions: 1.5.6
Environment: JDK 1.6.0_13, JBoss, Liferay 5.2.2, Oracle 10g
Reporter: Timo Pick
Enviroment: I'm using Liferay in a clustered environment with two JBoss nodes.
Liferay uses Jackrabbit to save documents and attachments. Jackrabbit uses an
Oracle10g database as filesystem, repository and workspace. (see repository.xml)
Problem: shutting down jboss leads to a deadlock in the
RepositoryImpl.shutdown() method as it tries to acquire a ReadWriteLock.
RepositoryImpl calls shutdown() which tells all the Sessions to logout(). The
callback method TransientRepository.loggedOut() is called. This method calls
RepositoryImpl.shutdown() again (!!!). This is where the deadlock occurs. The
lock can not be acquired again as it already is acquired by the first call. I
have appended the java stacktrace (see jboss-does-not-stop.txt)
Possible Solution: prevent TransientSession.loggedOut() from calling
RepositoryImpl.shutdown()
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