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From "Santosh Koti" <Santosh_K...@infosys.com>
Subject RE: Transaction timeout exception ?!
Date Thu, 01 Jun 2006 14:51:00 GMT


In that case do we not get a sql exception saying : the no of process exceeded more than the
<configured limit> ??



Thanks,
Santosh.
"Don't talk about yourself; it will be done when you leave. "
 

-----Original Message-----
From: Mario Rübsam [mailto:mr@coderesearch.com] 
Sent: Thursday, June 01, 2006 8:03 PM
To: user@geronimo.apache.org
Subject: Re: Transaction timeout exception ?!

Santosh,

first of all my question is now: which database?
I had this under load conditions when not enough database
connections/sessions available on the db server. Or when
the max connections on Geronimo set higher than max connections
on the server.

-Mario

Santosh Koti wrote:
>  
> 
>  
> 
> Hi all,
> 
>  
> 
> I am getting transaction timeout exception , may I know the 
> reasons/workaround for it?
> 
>  
> 
> I guess this the container is try ing to commit, but is waiting for the 
> DB to accept the request ?
> 
>  
> 
> Here is the following code snippet from Geronimo 
> TransactionImpl.java(commit ()) :
> 
>  
> 
> -------------Begin-----------------
> 
>                                     |   //Transaction method, does 2pc|
> |221 ||*public*|| *void* commit() *throws* HeuristicMixedException 
> <http://www.kickjava.com/3071.htm>, HeuristicRollbackException 
> <http://www.kickjava.com/3072.htm>, RollbackException 
> <http://www.kickjava.com/3072.htm>, SecurityException 
> <http://www.kickjava.com/1840.htm>, SystemException 
> <http://www.kickjava.com/2975.htm> {|
> |222         beforePrepare();|
> |223 |
> |224         *try* {|
> |225                       *boolean* timedout = *false*;|
> |226                       *if* (TransactionTimer.getCurrentTime() > 
> timeout)|
> |227                       {|
> |228                           status = Status.STATUS_MARKED_ROLLBACK;|
> |229                           timedout = *true*;|
> |230                       }|
> |231 |
> |232             *if* (status == Status.STATUS_MARKED_ROLLBACK) {|
> |233                 rollbackResources(resourceManagers);|
> |234                               *if*(timedout)|
> |235                               {|
> |236                                   *throw* *new* RollbackException 
> <http://www.kickjava.com/3072.htm>("Transaction timout");|
> |237                               }|
> |238                               *else*|
> |239                               {|
> |240                                   *throw* *new* RollbackException 
> <http://www.kickjava.com/3072.htm>("Unable to commit");|
> |241                               }|
> |242             }|
> |243             *synchronized* (*this*) {|
> |244                 *if* (status == Status.STATUS_ACTIVE) {|
> |245                     *if* (*this*.resourceManagers.size() == 0) {|
> |246                         // nothing to commit|
> |247 status = Status.STATUS_COMMITTED;|
> |248                     } *else* *if* (*this*.resourceManagers.size() 
> == 1) {|
> |249                         // one-phase commit decision|
> |250 status = Status.STATUS_COMMITTING;|
> |251                     } *else* {|
> |252                         // start prepare part of two-phase|
> 
>  
> 
>  
> 
> -------------End--------------------
> 
> Thanks,
> 
> Santosh.
> 
> "Don't talk about yourself; it will be done when you leave. "
> 
>  
> 
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