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From "Shapovalenko Daniil" <Daniil.Shapovale...@bercut.com>
Subject RE: FW: Memory leak using SSL Tomcat 6.0.16
Date Sun, 04 May 2008 06:51:31 GMT
Exactly the same problem was discussed there
http://forum.java.sun.com/thread.jspa?threadID=5266266&tstart=0

Seems, I have two ways. Recompile the JSSE with some code added to
finalize method, or using tomcat with another ssl provider. 

Does anybody knows how can I do the second case?

>add the flag

>-XX:+HeapDumpOnOutOfMemoryError

>when you get an OOM, it will dump a .hprof file, zip it up, and make it

>available to us (dont attach it to an email :)

>I can help you analyse it

>Filip

>Shapovalenko Daniil wrote:
>> Hello there!
>>
>>  
>>
>> I'm using Tomcat 6.0.16 with an extremely simple servlet.
>>
>>  
>>
>> The code of servlet is here (functions that doesn't mentioned here
are
>> blank):
>>
>> ...
>>
>>       protected void doPost(HttpServletRequest request,
>> HttpServletResponse response) throws ServletException, IOException {
>>
>>             response.getWriter().write("post!!!");
>>
>>             response.setStatus(200);
>>
>>       }               
>>
>> ...
>>
>>  
>>
>> Tomcat used is clear distrib except servlet in webapps and server.xml
>> changed. The source of the server.xml is follow (all content of file
>> doesn't mentioned here remains original):
>>
>> ...
>>
>>     <Connector port="8443"
>>
>>         maxHttpHeaderSize="8192"
>>
>>         connectionTimeout="60000"
>>
>>         enableLookups="false"
>>
>>         disableUploadTimeout="true"
>>
>>  
>>
>>         maxThreads="900"
>>
>>         minSpareThreads="350"
>>
>>         maxSpareThreads="700"
>>
>>         acceptCount="700"
>>
>>         
>>
>>         protocol="HTTP/1.1"
>>
>>         SSLEnabled="true"
>>
>>         scheme="https"
>>
>>         secure="true"
>>
>>         clientAuth="false"
>>
>>         sslProtocol="TLS"
>>
>>         keystoreFile="/opt/.keystore"
>>
>>         keystorePass="tomcat" />
>>
>> ...
>>
>>  
>>
>> I'm using SSL as you see.
>>
>>  
>>
>> I'm running a loader which creates some threads (for example 40) that
>> sends one POST request without parameters per second.
>>
>> There are no unusual HTTP headers in the request.
>>
>> I'm getting 300m for this Tomcat.
>>
>>  
>>
>> After about three hours of working it throws an OutOfMemoryError.
>>
>>  
>>
>> Exploring the dump at that time I'm found a lot of instances of
>> com.sun.net.ssl.internal.ssl.SSLSessionImpl
>> <http://192.168.12.164:7000/class/0xebe303c0>  class. But may be this
is
>> not the reason.
>>
>>  
>>
>> Thanks for any ideas and help.
>>
>> --Daniil.
>>
>>
>>   
>>
------------------------------------------------------------------------
>>
>> No virus found in this incoming message.
>> Checked by AVG. 
>> Version: 7.5.524 / Virus Database: 269.23.6/1402 - Release Date:
4/28/2008 1:29 PM
>>   




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