[jboss-jira] [JBoss JIRA] Commented: (JBCACHE-785) InvocationContext and suspended transactions

[Owen Taylor (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBCACHE-785?page=comments#action_12344024 ] 
            
Owen Taylor commented on JBCACHE-785:
-------------------------------------

I probably should also mention the context: this problem occurs with the text.hibernate.cache.TreeCache.put() which suspends the current transaction when caching data into the cache after a cache miss. I believe (but have not verified experimentally) that it will also occur with the suspend that is done internally inside the tree cache when Option.setFailSilently() has been called.


> InvocationContext and suspended transactions
> --------------------------------------------
>
>                 Key: JBCACHE-785
>                 URL: http://jira.jboss.com/jira/browse/JBCACHE-785
>             Project: JBoss Cache
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 1.4.0.SP1
>            Reporter: Owen Taylor
>         Assigned To: Manik Surtani
>         Attachments: SuspendTxTest.java
>
>
> The attached test case demonstrates that if you:
>  A) Make calls to the tree cache
>  B) suspend the current transaction
>  C) Make more calls to the tree cache
> The locks created at step C) are sometimes  attached to the suspended transaction; it seems this is because the cached transactions in InvocationContext are only reliably cleared when a transaction is committed.
> It's possible that *always* passing true in the call to scrubInvocationCtx() at the end of TxInterceptor.invoke() would work, but I'm not sure it is the correct thing to do, or what the effect would be on performance. (Presumably there is some reason not to just always look up the current transaction.)

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