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Posted to server-dev@james.apache.org by "Norman Maurer (JIRA)" <se...@james.apache.org> on 2011/04/15 16:23:05 UTC
[jira] [Resolved] (IMAP-265) Memory leakeage problem with slow
clients when using NIO
[ https://issues.apache.org/jira/browse/IMAP-265?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Norman Maurer resolved IMAP-265.
--------------------------------
Resolution: Fixed
Fix Version/s: 0.2
was fixed
> Memory leakeage problem with slow clients when using NIO
> --------------------------------------------------------
>
> Key: IMAP-265
> URL: https://issues.apache.org/jira/browse/IMAP-265
> Project: JAMES Imap
> Issue Type: Bug
> Reporter: Wojtek Strzalka
> Assignee: Norman Maurer
> Fix For: 0.2
>
>
> There is constant memory leakage while heavy testing.
> I was experiencing OOM while testing huge mailboxes with even single client (greedy one - it open many simultanous connections).
> So I'd increased memory for James and then did a memory dump after testing session (all clients were disconnected > 10 minutes at the time) and checked what's sitting there.
> ------------
> 66323 instances of class org.jboss.netty.buffer.BigEndianHeapChannelBuffer
> 66299 instances of class org.jboss.netty.util.internal.LinkedTransferQueue$Node
> 66250 instances of class org.jboss.netty.channel.DefaultChannelFuture
> 66250 instances of class org.jboss.netty.channel.DownstreamMessageEvent
> 7853 instances of class org.jboss.netty.buffer.TruncatedChannelBuffer
> 2048 instances of class org.jboss.netty.util.internal.ConcurrentIdentityHashMap$Segment
> 2048 instances of class [Lorg.jboss.netty.util.internal.ConcurrentIdentityHashMap$HashEntry;
> 512 instances of class org.jboss.netty.util.MapBackedSet
> 512 instances of class org.jboss.netty.util.internal.ConcurrentIdentityHashMap
> 512 instances of class org.jboss.netty.util.internal.ConcurrentIdentityHashMap$KeyIterator
> 512 instances of class org.jboss.netty.util.internal.ConcurrentIdentityHashMap$KeySet
> 512 instances of class [Lorg.jboss.netty.util.internal.ConcurrentIdentityHashMap$Segment;
> 204 instances of class javax.mail.util.SharedFileInputStream
> 201 instances of class org.apache.james.imap.main.ResponseEncoder
> 197 instances of class org.apache.james.imap.processor.IdleProcessor$IdleMailboxListener
> 174 instances of class org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext
> 147 instances of class org.apache.james.mime4j.util.CharsetUtil$Charset
> 118 instances of class org.apache.log4j.CategoryKey
> ---------------------------
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