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From "Xiao Chen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-14987) Improve KMSClientProvider log around delegation token checking
Date Tue, 31 Oct 2017 04:05:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-14987?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16226213#comment-16226213
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Xiao Chen commented on HADOOP-14987:
------------------------------------

Thanks Xiaoyu.

bq. TestLoadBalancingKMSClientProvider#testCreation 
Can we accommodate that by using some test-only flags and logic? Then we don't need to worry
about the 9600 since it's test-only.

bq. I'm hesitant to annotate the new API with @InterfaceAudience.Private
Makes sense to me. We can still try to downgrade that from the UGI's {{Public}} {{Evolving}}
to {{LimitedPrivate}} {{Unstable}}, so  we don't have to worry future changes.

> Improve KMSClientProvider log around delegation token checking
> --------------------------------------------------------------
>
>                 Key: HADOOP-14987
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14987
>             Project: Hadoop Common
>          Issue Type: Improvement
>    Affects Versions: 2.7.3
>            Reporter: Xiaoyu Yao
>            Assignee: Xiaoyu Yao
>         Attachments: HADOOP-14987.001.patch, HADOOP-14987.002.patch
>
>
> KMSClientProvider#containsKmsDt uses SecurityUtil.buildTokenService(addr) to build the
key to look for KMS-DT from the UGI's token map. The token lookup key here varies depending
 on the KMSClientProvider's configuration value for hadoop.security.token.service.use_ip.
In certain cases, the token obtained with non-matching hadoop.security.token.service.use_ip
setting will not be recognized by KMSClientProvider. This ticket is opened to improve logs
for troubleshooting KMS delegation token related issues like this.  



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