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https://issues.apache.org/jira/browse/HADOOP-12795?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15143439#comment-15143439
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Wei-Chiu Chuang commented on HADOOP-12795:
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Hi [~cnauroth], I've recently encountered similar issue with KMS returning code
500, and it would be great to add this log. We ended up looking at
kms-catalina.log and found indirect evidence to the root cause. Have you
checked that log too?
As for the patch, the log you added seem to be used in test only, not in
production.
> KMS does not log detailed stack trace for unexpected errors.
> ------------------------------------------------------------
>
> Key: HADOOP-12795
> URL: https://issues.apache.org/jira/browse/HADOOP-12795
> Project: Hadoop Common
> Issue Type: Bug
> Components: kms
> Reporter: Chris Nauroth
> Attachments: HADOOP-12795.001.patch
>
>
> If the KMS server encounters an unexpected error resulting in an HTTP 500
> response, it does not log the stack trace. This makes it difficult to
> troubleshoot. The client side exception cannot provide further details.
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