[jboss-jira] [JBoss JIRA] Created: (JBPORTAL-1401) Portal Unresponsiveness With Conection Pool Bottleneck

Mike Millson (JIRA) jira-events at lists.jboss.org
Fri May 18 10:35:52 EDT 2007


Portal Unresponsiveness With Conection Pool Bottleneck
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                 Key: JBPORTAL-1401
                 URL: http://jira.jboss.com/jira/browse/JBPORTAL-1401
             Project: JBoss Portal
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: Portal Security
    Affects Versions: 2.4.1 SP1
         Environment: RHEL 5
Windows XP

            Reporter: Mike Millson
         Assigned To: Julien Viet


Observed Behavior:
When the connection pool is not adequately sized, the portal freezes. A thread dump shows that a single http connector thread holds the lock to java.security.Permissions.implies(Permission) and is waiting BlockingTimeoutMillis to get a connection. Almost all the other http threads are blocked waiting to aquire the lock to java.security.Permissions.implies(Permission). Apparently the thread waiting for a connection needs a connection to look up the permissions in the database.

Expected Behavior:
The portal should not become unresponsive. Portal 2.6 CR2 does not freeze up when the same test is run.

I will attach the test case, thread dump, and datasource.

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