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

Fri May 18 10:49:55 EDT 2007

     [ http://jira.jboss.com/jira/browse/JBPORTAL-1401?page=all ]

Mike Millson updated JBPORTAL-1401:
-----------------------------------

    Attachment: portal-mysql-ds.xml

MySQL datasource. MySQL was used when the thread dump was taken.

> Portal Unresponsiveness With Conection Pool Bottleneck
> ------------------------------------------------------
>
>                 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
>         Attachments: JDBCConnectionPoolTest.java, mgm-thread-dump.txt, portal-mysql-ds.xml, portal-oracle-ds.xml
>
>
> 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.

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira