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https://issues.apache.org/jira/browse/HADOOP-13854?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiao Chen updated HADOOP-13854:
-------------------------------
    Attachment: HADOOP-13854.01.patch

Attaching patch 1. This should be {{warn}} instead of {{debug}} because IMO we 
usually want to analyze and check details of those {{ERROR}} audits.

> KMS should log error details even if a request is malformed
> -----------------------------------------------------------
>
>                 Key: HADOOP-13854
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13854
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: kms
>    Affects Versions: 2.6.5
>            Reporter: Xiao Chen
>            Assignee: Xiao Chen
>         Attachments: HADOOP-13854.01.patch
>
>
> It appears if a KMS HTTP request is malformed, it could rejected by tomcat 
> and a response is sent by 
> [KMSExceptionsProvider|https://github.com/apache/hadoop/blob/branch-3.0.0-alpha1/hadoop-common-project/hadoop-kms/src/main/java/org/apache/hadoop/crypto/key/kms/server/KMSExceptionsProvider.java#L99]
>  overriding Jersey's ExceptionMapper.
> This behavior is okay, but in the logs we'll see an ERROR audit log, but 
> nothing in kms.log (or anywhere else). This makes trouble shooting pretty 
> painful, let's improve it.



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