[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-3189) Update c3p0 to 0.9.1.2

[Jean-Philippe Bouchard (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-3189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_29934 ] 

Jean-Philippe Bouchard commented on HHH-3189:
---------------------------------------------

Actually, the problem still occurs, even with 0.9.1.2. I'll bring it up with the c3p0 folks. It may still be a good idea to upgrade to the latest version though...

> Update c3p0 to 0.9.1.2
> ----------------------
>
>                 Key: HHH-3189
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3189
>             Project: Hibernate3
>          Issue Type: Task
>          Components: core
>    Affects Versions: 3.2.5
>         Environment: Tomcat 5.5, Hibernate 3.2.5, MySQL 4.1.11a-4sarge, c3p0 0.9.1
>            Reporter: Jean-Philippe Bouchard
>            Priority: Minor
>         Attachments: borked.txt
>
>
> I run a pretty busy site and every 24 hours or so, the system completely locks up and I have to restart tomcat. I investigated and the problem occurs in c3p0 which I use for my connection pooling. I attached a file containing the stack traces (obtained with JConsole) of some of the http processor threads when the system locks up. Using JConsole, I also tried to run softResetAllUsers() on the pooled datasource when the system is locked up and that fixes the issue as well.
> In the change log for c3p0 0.9.1.2, they mention a fix of a deadlock issue so I tried the new version and the problem doesn't occur anymore.

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