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From "Bernd Fondermann (JIRA)" <server-...@james.apache.org>
Subject [jira] Commented: (JAMES-512) OutOfMemoryError -- object not released.
Date Tue, 30 May 2006 09:08:31 GMT
    [ http://issues.apache.org/jira/browse/JAMES-512?page=comments#action_12413788 ] 

Bernd Fondermann commented on JAMES-512:
----------------------------------------

I can reproduce the bug under James 2.2.0 with the following Postage szenario:

    <scenario id="release_james512" runtimeMinutes="480"><!-- 8h=480, 1d=1440, 3d=4320
-->
        <users>
          <internal count="1" username-prefix="test_int" domain="mail.james.local" password="test"
reuseExisting="yes" />
          <external count="0" username-prefix="test_ext" domain="mail.sample.com" />
        </users>
        <profiles>
            <profile name="ext-int" source="extern" target="intern">
            </profile>
            <profile name="int-ext" source="intern" target="extern">
            </profile>
            <profile name="int-int" source="intern" target="intern">
               <send count-per-min="25" subject="int2int" text-size-min="10" text-size-max="20"
binary-size-min="0" binary-size-max="0"  />
               <send count-per-min="25" subject="int2int" text-size-min="10" text-size-max="20"
binary-size-min="0" binary-size-max="0"  />
               <send count-per-min="25" subject="int2int" text-size-min="10" text-size-max="20"
binary-size-min="0" binary-size-max="0"  />
               <send count-per-min="25" subject="int2int" text-size-min="10" text-size-max="20"
binary-size-min="0" binary-size-max="0"  />
               <send count-per-min="25" subject="int2int" text-size-min="10" text-size-max="20"
binary-size-min="0" binary-size-max="0"  />
               <send count-per-min="25" subject="int2int" text-size-min="10" text-size-max="20"
binary-size-min="0" binary-size-max="0"  />
               <send count-per-min="25" subject="int2int" text-size-min="10" text-size-max="20"
binary-size-min="0" binary-size-max="0"  />
               <send count-per-min="25" subject="int2int" text-size-min="10" text-size-max="20"
binary-size-min="0" binary-size-max="0"  />
               <send count-per-min="25" subject="int2int" text-size-min="10" text-size-max="20"
binary-size-min="0" binary-size-max="0"  />
               <send count-per-min="25" subject="int2int" text-size-min="10" text-size-max="20"
binary-size-min="0" binary-size-max="0"  />

               <send count-per-min="25" subject="int2int" text-size-min="10" text-size-max="20"
binary-size-min="0" binary-size-max="0"  />
               <send count-per-min="25" subject="int2int" text-size-min="10" text-size-max="20"
binary-size-min="0" binary-size-max="0"  />
               <send count-per-min="25" subject="int2int" text-size-min="10" text-size-max="20"
binary-size-min="0" binary-size-max="0"  />
               <send count-per-min="25" subject="int2int" text-size-min="10" text-size-max="20"
binary-size-min="0" binary-size-max="0"  />
               <send count-per-min="25" subject="int2int" text-size-min="10" text-size-max="20"
binary-size-min="0" binary-size-max="0"  />
               <send count-per-min="25" subject="int2int" text-size-min="10" text-size-max="20"
binary-size-min="0" binary-size-max="0"  />
               <send count-per-min="25" subject="int2int" text-size-min="10" text-size-max="20"
binary-size-min="0" binary-size-max="0"  />
               <send count-per-min="25" subject="int2int" text-size-min="10" text-size-max="20"
binary-size-min="0" binary-size-max="0"  />
               <send count-per-min="25" subject="int2int" text-size-min="10" text-size-max="20"
binary-size-min="0" binary-size-max="0"  />
               <send count-per-min="25" subject="int2int" text-size-min="10" text-size-max="20"
binary-size-min="0" binary-size-max="0"  />

            </profile>
        </profiles>
        <testserver host="localhost">
          <smtp-forwarding port="2525" latecomer-wait-seconds="120"/>
          <smtp-inbound port="25" />
          <pop3 port="110" count-per-min="10" />
          <remotemanager port="4555" name="root" password="root" />
          <spam-account name="spam-sink" password="spam-sink" />
          <jvm-resources jmx-remoting-port="10201" />
        </testserver>
    </scenario>


> OutOfMemoryError -- object not released.
> ----------------------------------------
>
>          Key: JAMES-512
>          URL: http://issues.apache.org/jira/browse/JAMES-512
>      Project: James
>         Type: Bug

>   Components: MailStore & MailRepository
>     Versions: 2.2.0
>  Environment: windows XP,
> Java 1.5.0_06
>     Reporter: Quande Ren
>     Priority: Critical
>      Fix For: 2.3.0a4
>  Attachments: picture.GIF
>
> I use the file system to store the emails.
> When I run the James for a long time, the james server used more and more heap memory,
eventually it runs out of memory and refuse to receive email. only restart the james will
work.
> I used JProfile Memory Debugger(you can get the trial version from www.quest.com)  and
found a clue. the object allocated from following code at line 92 does not always get released,
cause the memory been used up eventually. I will attach a picture file showing the call stack.
> 91,            final OutputStream outputStream = getOutputStream( key );
> 92,            final BufferedOutputStream stream = new BufferedOutputStream( outputStream
);
> 93
> 94,            final Object o = m_outputs.get( key );
> 95,            if( null == o )
> 96,            {
> 97,                m_outputs.put( key; stream );
> 98,            }
> 99,            else if( o instanceof ArrayList )
> 100,            {
> 101,                ( (ArrayList)o ).add( stream );
> 102,            }
> 103,            else
> 104,            {
> 105,                final ArrayList list = new ArrayList();
> 106,                list.add( o );
> 107,                list.add( stream );
> 108,                m_outputs.put( key; list );
> 109,            }
> 110
> 111,            return stream;

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