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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13669) KMS Server should log exceptions before throwing
Date Mon, 24 Oct 2016 16:41:58 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15602529#comment-15602529
] 

Allen Wittenauer commented on HADOOP-13669:
-------------------------------------------

I think you're still missing it:

Pre-process runs and part of it's output is this:

bq. -1 	findbugs 	0m 26s 	hadoop-common-project/hadoop-kms in trunk has 2 extant Findbugs
warnings.

i.e., trunk has 2 existing findbugs issues

Yetus then starts on it's second pass with the patch in place (the mvninstall lines are good
indicators where it is).  It then provides this output:

bq. +1 	findbugs 	0m 34s 	hadoop-common-project/hadoop-kms generated 0 new + 0 unchanged -
2 fixed = 0 total (was 2) 

.... which indicates the patch fixed the 2 findbugs issues.

> KMS Server should log exceptions before throwing
> ------------------------------------------------
>
>                 Key: HADOOP-13669
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13669
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: kms
>            Reporter: Xiao Chen
>            Assignee: Suraj Acharya
>              Labels: supportability
>             Fix For: 2.8.0, 3.0.0-alpha2
>
>         Attachments: HADOOP-13369.2.patch, HADOOP-13369.patch, HADOOP-13369.patch.1,
HADOOP-13669.addendem2.patch, HADOOP-13669.addendum.patch, trigger.02.patch, trigger.patch
>
>
> In some recent investigation, it turns out when KMS throws an exception (into tomcat),
it's not logged anywhere and we can only see the exception message from client-side, but not
the stacktrace. Logging the stacktrance would help debugging.



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