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Posted to issues@camel.apache.org by "Claus Ibsen (JIRA)" <ji...@apache.org> on 2016/08/20 13:41:22 UTC
[jira] [Commented] (CAMEL-10179) Frequent
BlockingOperationExceptions under load in NettyProducer.openChannel()
[ https://issues.apache.org/jira/browse/CAMEL-10179?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15429383#comment-15429383 ]
Claus Ibsen commented on CAMEL-10179:
-------------------------------------
I think this is fixed by CAMEL-10244
> Frequent BlockingOperationExceptions under load in NettyProducer.openChannel()
> ------------------------------------------------------------------------------
>
> Key: CAMEL-10179
> URL: https://issues.apache.org/jira/browse/CAMEL-10179
> Project: Camel
> Issue Type: Improvement
> Components: camel-netty4
> Affects Versions: 2.17.2
> Reporter: Michael Frankfurter
> Fix For: 2.18.0, 2.17.4
>
>
> I have a class that uses a netty4 producer. While doing some load testing, I started seeing a lot of stack traces like the following:
> {code}
> io.netty.util.concurrent.BlockingOperationException: DefaultChannelPromise@3ee2397e(incomplete)
> at io.netty.util.concurrent.DefaultPromise.checkDeadLock(DefaultPromise.java:391) ~[netty-all-4.0.34.Final.jar:4.0.34.Final]
> at io.netty.channel.DefaultChannelPromise.checkDeadLock(DefaultChannelPromise.java:157) ~[netty-all-4.0.34.Final.jar:4.0.34.Final]
> at io.netty.util.concurrent.DefaultPromise.awaitUninterruptibly(DefaultPromise.java:284) ~[netty-all-4.0.34.Final.jar:4.0.34.Final]
> at io.netty.channel.DefaultChannelPromise.awaitUninterruptibly(DefaultChannelPromise.java:135) ~[netty-all-4.0.34.Final.jar:4.0.34.Final]
> at io.netty.channel.DefaultChannelPromise.awaitUninterruptibly(DefaultChannelPromise.java:28) ~[netty-all-4.0.34.Final.jar:4.0.34.Final]
> at org.apache.camel.component.netty4.NettyProducer.openChannel(NettyProducer.java:468) ~[camel-netty4-2.17.1.jar:2.17.1]
> ...
> {code}
> It seems to be the same like in CAMEL-8193 but during the opening phase, not the closing phase.
> I had a look at {{org.apache.camel.component.netty4.NettyProducer.openChannel()}}, line 468 and maybe using {{channelFuture..addListener(...)}} instead of {{channelFuture.awaitUninterruptibly();}} at that point may fix this issue.
> Would be great if somebody could take a look.
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