[jira] [Created] (HDFS-12728) Improve KMSClientProvider log around delegation token checking

["Xiaoyu Yao (JIRA)" <ji...@apache.org>]

Xiaoyu Yao created HDFS-12728:
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             Summary: Improve KMSClientProvider log around delegation token checking
                 Key: HDFS-12728
                 URL: https://issues.apache.org/jira/browse/HDFS-12728
             Project: Hadoop HDFS
          Issue Type: Bug
    Affects Versions: 2.7.3
            Reporter: Xiaoyu Yao
            Assignee: Xiaoyu Yao


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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