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From "Emmanuel Lecharny (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DIRMINA-762) WARN org.apache.mina.core.service.IoProcessor - Create a new selector. Selected is 0, delta = 0
Date Wed, 10 Feb 2010 09:52:27 GMT

    [ https://issues.apache.org/jira/browse/DIRMINA-762?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12831924#action_12831924
] 

Emmanuel Lecharny commented on DIRMINA-762:
-------------------------------------------

Tested with 2.0.0-RC1, no problem so far. Definitively a bug introduced in one of the 47 commits
since then ...

I'm currently reverting the commits one by one until I see the test running, to find which
one introduced the problem. It takes a hell of a time ...

> 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, NettyTestServer.java, RateCounter.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).

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