[jira] Closed: (IBATIS-496) TransactionManager.begin() calls Throttle.increment() which stalls after about 10 days

["Clinton Begin (JIRA)" <ib...@incubator.apache.org>]

     [ https://issues.apache.org/jira/browse/IBATIS-496?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Clinton Begin closed IBATIS-496.
--------------------------------

    Resolution: Fixed

Throttle is removed in 2.3.1.  Although you may still find that you have a problem with unclosed sessions/transactions/connections.  But the next error will come from your datasource.

> TransactionManager.begin() calls Throttle.increment() which stalls after about 10 days
> --------------------------------------------------------------------------------------
>
>                 Key: IBATIS-496
>                 URL: https://issues.apache.org/jira/browse/IBATIS-496
>             Project: iBatis for Java
>          Issue Type: Bug
>          Components: SQL Maps
>    Affects Versions: 2.2.0
>         Environment: OpenSuse Linux 10, JDK 1.4, MySQL 4.1, Tomat 5.0.28
>            Reporter: Karsten Silz
>            Priority: Blocker
>
> We have a web application running on Tomcat, using the Commons JDBC connection pool and iBatis 2.2.  Our app uses a single "SqlMapClient" instance for all our database access.
> Now what happens is that after 7-10 days, the application doesn't have any database connections anymore, and users typically notice because the login screen hangs forever.  At first we thought we're running out of MySQL connections, but then we did a Tomcat stack trace dump and found tens of threads, all stuck in the same method:
>    java.lang.Thread.State: WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.lang.Object.wait(Object.java:485)
> 	at com.ibatis.common.util.Throttle.increment(Throttle.java:70)
> 	- locked <0x5a26fca8> (a java.lang.Object)
> 	at com.ibatis.sqlmap.engine.transaction.TransactionManager.begin(TransactionManager.java:54)
> 	at com.ibatis.sqlmap.engine.transaction.TransactionManager.begin(TransactionManager.java:39)

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