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

[Kevin Conner (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBTM-217?page=comments#action_12369579 ] 
            
Kevin Conner commented on JBTM-217:
-----------------------------------

The easiest solution is for this to be supported directly by the transaction implementation.

This was a possibility at the time but I can't remember the reason for not doing it.


> 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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