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Date: Tue, 4 Dec 2007 00:19:58 -0800 (PST)
From: pns77 <pnsrapuram@gmail.com>
To: user-java@ibatis.apache.org
Subject: Re: Memeory leak in com.iBatis.sqlmap.engine.impl.SqlMapClientImpl
 class
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I am also facing a similar issue with ibatis - we arrived at the conclusion
after an analysis of heap dump. The following was the response that we got
for a ticket we had raised with IBM.

" ..Maximum heap was set to 1024m and almost 1000mb of heap is in use.
Anlaysis of the heapdump shows the com/ibatis/sqlmap/engine/* code occupying
most of heap(Nearly 900mb). .."

There seems to be too many char[] (character array) objects that get created
from com.iBatis.sqlmap.engine.impl.SqlMapClientImpl class. In our
application side we had explcitly set the "daoManager" object reference to
null so that it could be GC'ed. Still, we dont see any improvement. 

Would apprecitate if some one could suggest a solution.

We use WebSphere 6 on AIX / ibatis  accessing DB2 database.

Thanks,
P.N.Subramanian


pooven wrote:
> 
> We are using a iBatis 2.3.677 along with CrystalReport 11.8 ,Websphere
> AppServer 6.0.23 and DB2 8.2 and Websphere Portal Server 5.1.0.4, in our
> struts based portlet application. 
> 
> There are 183 reports we are using. 
> 
> We are facing the outOfMemory issue. After analysing the heapDump file
> through the IBM HeapAnalyser we came to know that there is a memory
> leakage around 8 MB in the 
> 
> com.iBatis.sqlmap.engine.impl.SqlMapClientImpl class, 
> 
> I called flushDataCache from the sqlMapper , still it is of no use. 
> 
> Can any one guide me in this regard. 
> 
> 
> Thanks, 
> P.Poovendran
> 

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