[jbossts-issues] [JBoss JIRA] Commented: (JBTM-217) Contention on SychronizedMap in TransactionLocalDelegateImpl.java

[Andrew Dinn (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBTM-217?page=comments#action_12369690 ] 
            
Andrew Dinn commented on JBTM-217:
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Yes, that would be easy to do. However, Mark does not want the jtax layer to  use any non-standard hooks into the JTA/JTS codebase. That way the AS can maintain interoperability with other Transaction Service implementations. So, we must only rely on the javax.transaction API. Was that the rationale for not using the transaction implementation last time?

> Contention on SychronizedMap in TransactionLocalDelegateImpl.java
> -----------------------------------------------------------------
>
>                 Key: JBTM-217
>                 URL: http://jira.jboss.com/jira/browse/JBTM-217
>             Project: JBoss Transaction Manager
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: JTA Implementation
>    Affects Versions: 4.2.3
>            Reporter: Phillip Thurmond
>         Assigned To: Andrew Dinn
>             Fix For: 4.4
>
>          Time Spent: 1 day
>  Remaining Estimate: 0 minutes
>
> Under heavy loads, I'm seeing contention on the object map in TransactionLocalDelegateImpl.java.  Can this variable be changed to use ConcurrentHashMap?

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