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https://issues.apache.org/jira/browse/HDDS-14832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18065527#comment-18065527
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weiming commented on HDDS-14832:
--------------------------------
Hi [~weichiu] ,may I take this issue?
> Make Datanode dispatcher error message more informative
> -------------------------------------------------------
>
> Key: HDDS-14832
> URL: https://issues.apache.org/jira/browse/HDDS-14832
> Project: Apache Ozone
> Issue Type: Improvement
> Components: Ozone Datanode
> Reporter: Wei-Chiu Chuang
> Priority: Trivial
>
> This message isn't informative.
> {noformat}
> java.lang.IllegalStateException
> at
> com.google.common.base.Preconditions.checkState(Preconditions.java:496)
> at
> org.apache.hadoop.ozone.container.common.impl.HddsDispatcher.dispatchRequest(HddsDispatcher.java:379)
> at
> org.apache.hadoop.ozone.container.common.impl.HddsDispatcher.lambda$dispatch$0(HddsDispatcher.java:178)
> at
> org.apache.hadoop.hdds.server.OzoneProtocolMessageDispatcher.processRequest(OzoneProtocolMessageDispatcher.java:87)
> at
> org.apache.hadoop.ozone.container.common.impl.HddsDispatcher.dispatch(HddsDispatcher.java:177)
>
> 2026-03-11 13:51:49,097 WARN
> [ChunkReader-ELG-0]-org.apache.ratis.thirdparty.io.netty.channel.DefaultChannelPipeline:
> An exceptionCaught() event was fired, and it reached at the tail of the
> pipeline. It usually means the last handler in the pipeline did not handle
> the exception.
> org.apache.ratis.thirdparty.io.netty.channel.unix.Errors$NativeIoException:
> accept(..) failed: Too many open files{noformat}
>
> Let's make this Preconditions.checkState() more informative
> [https://github.com/apache/ozone/blob/1e785c599b7ccd7359125061eefe56e66feca9fa/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/impl/HddsDispatcher.java#L404-L407]
>
> add: container id, and the actual containerState.
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