[jboss-jira] [JBoss JIRA] Created: (JBAS-4314) A deadlock condition in DistributedReplicantManagerImpl

[Bernd Köcke (JIRA)]

A deadlock condition in DistributedReplicantManagerImpl
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                 Key: JBAS-4314
                 URL: http://jira.jboss.com/jira/browse/JBAS-4314
             Project: JBoss Application Server
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: Clustering
    Affects Versions: JBossAS-4.0.2 Final
         Environment: Linux 2.6.x, Sun-JVM 1.5.0_11-b03, 1.6.0-b105, JBoss 4.0.2.final.
            Reporter: Bernd Köcke
         Assigned To: Brian Stansberry


While working on JBAS-4313 I found a deadlock condition in DistributedReplicantManagerImpl. All methods are using the lock order localReplicants -> replicants. But method purgeDeadMembers uses replicants -> localReplicants. To solve the problem I moved the notifyKeyListeners out of the synchronized(replicants)-block.

Newer versions of JBoss are using maps from the concurrent-package and not the normal java.util.HashMap. Maybe this solves the problem, too.

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