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From "He Xiaoqiao (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-15360) Log some more helpful information when catch RuntimeException or Error in IPC.Server
Date Wed, 04 Apr 2018 09:38:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-15360?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16425250#comment-16425250
] 

He Xiaoqiao commented on HADOOP-15360:
--------------------------------------

Thanks [~jojochuang], my hadoop version is release-2.7.1, and it looks fix in branch-2.7,
 but I don't dig deeply which issue fixed it, maybe it is relevant to JIRA you mentioned above.
thanks again.

> Log some more helpful information when catch RuntimeException or Error in IPC.Server

> -------------------------------------------------------------------------------------
>
>                 Key: HADOOP-15360
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15360
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: ipc
>            Reporter: He Xiaoqiao
>            Priority: Major
>
> IPC.Server#logException doesn't not print exception stack trace when catch RuntimeException
or Error, for instance:
> {code:java}
> 2018-03-28 21:52:25,385 WARN org.apache.hadoop.ipc.Server: IPC Server handler 17 on 8020,
call org.apache.hadoop.hdfs.protocol.ClientProtocol.getFileInfo from *.*.*.*:59326 Call#46
Retry#0 java.lang.ArrayIndexOutOfBoundsException: 0
> {code}
> this log message is not friendly for debug. I think it is necessary to print more helpful
message or full stack trace when the exception is RuntimeException or Error.



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