WARN io.netty.channel.nio.NioEventLoop - Selector.select() returned prematurely 512 times in a row;

[hyginous neto]

Hi Vertx team,

Any idea, why netty within vertx throwing below error? Our application is running in the openshift cloud environment (Kubernetes + docker).

1	12:37:28.188 [vert.x-eventloop-thread-0] WARN io.netty.channel.nio.NioEventLoop - Selector.select() returned prematurely 512 times in a row; rebuilding Selector io.netty.channel.nio.SelectedSelectionKeySetSelector@6ef45be.
2	12:38:28.163 [vert.x-eventloop-thread-0] WARN io.netty.channel.nio.NioEventLoop - Selector.select() returned prematurely 512 times in a row; rebuilding Selector io.netty.channel.nio.SelectedSelectionKeySetSelector@34599cca.

[Thomas SEGISMONT]

There are a few similar reports in Netty issues on GitHub.

This one has been fixed in 4.1.23.Final

https://github.com/netty/netty/pull/7806

Can you try your app with this version?

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[Julien Viet]

yes this happens with some Linux kernel.

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[hyginous neto]

Thanks, let me try this version.

On Wednesday, 25 July 2018 02:39:21 UTC-7, Thomas Segismont wrote:

There are a few similar reports in Netty issues on GitHub.

This one has been fixed in 4.1.23.Final

https://github.com/netty/netty/pull/7806

Can you try your app with this version?

2018-07-25 7:13 GMT+02:00 hyginous neto <hygi...@gmail.com>:

Hi Vertx team,

Any idea, why netty within vertx throwing below error? Our application is running in the openshift cloud environment (Kubernetes + docker).

1	12:37:28.188 [vert.x-eventloop-thread-0] WARN io.netty.channel.nio.NioEventLoop - Selector.select() returned prematurely 512 times in a row; rebuilding Selector io.netty.channel.nio.SelectedSelectionKeySetSelector@6ef45be.
2	12:38:28.163 [vert.x-eventloop-thread-0] WARN io.netty.channel.nio.NioEventLoop - Selector.select() returned prematurely 512 times in a row; rebuilding Selector io.netty.channel.nio.SelectedSelectionKeySetSelector@34599cca.

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