[
https://issues.apache.org/jira/browse/DIRMINA-762?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Emmanuel Lecharny updated DIRMINA-762:
--------------------------------------
Attachment: Screen shot 2010-02-02 at 7.49.18 PM.png
Screen shot 2010-02-02 at 7.49.13 PM.png
Here are 5 snapshots :
3 for the server
2 for the client
They expose :
- Memory + CPU over time
- Threads at the end of the test (green = running)
- and allocated objects on the server
One thing is strange : after having sent around 350 000 messages, the client
and the server suddenly slow down. CPU which topped at 85% on my system goes
down to 30%, and this is what we can see on both graphs.
Also we have an giant number of ConcurrentLinkedQueue$Node objects, which get
garbage collected later.
I guess that at some point, we are simply pushing too many messages in the
queues.
> WARN org.apache.mina.core.service.IoProcessor - Create a new selector.
> Selected is 0, delta = 0
> ------------------------------------------------------------------------------------------------
>
> Key: DIRMINA-762
> URL: https://issues.apache.org/jira/browse/DIRMINA-762
> Project: MINA
> Issue Type: Bug
> Environment: Linux (2.6.26-2-amd64), java version 1.6.0_12 and also
> 1.6.0_18.
> Reporter: Omry Yadan
> Priority: Critical
> Fix For: 2.0.0-RC2
>
> Attachments: BufferCodec.java, Screen shot 2010-02-02 at 7.48.39
> PM.png, Screen shot 2010-02-02 at 7.48.46 PM.png, Screen shot 2010-02-02 at
> 7.48.59 PM.png, Screen shot 2010-02-02 at 7.49.13 PM.png, Screen shot
> 2010-02-02 at 7.49.18 PM.png, Server.java, StressClient.java
>
>
> Mina server gets into a bad state where it constantly prints :
> WARN org.apache.mina.core.service.IoProcessor - Create a new selector.
> Selected is 0, delta = 0
> when this happens, server throughput drops significantly.
> to reproduce run the attached server and client for a short while (30 seconds
> on my box).
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
