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From "Yongjun Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-14333) New exception thrown by (private) DFSClient API isHDFSEncryptionEnabled broke hacky hive code
Date Thu, 20 Apr 2017 23:12:04 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-14333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15977761#comment-15977761
] 

Yongjun Zhang commented on HADOOP-14333:
----------------------------------------

Thanks [~andrew.wang].

Discussed with Andrew and he suggested not to do retries since RPC layer is already doing
that. Cleaned up the code and uploaded rev002.



> New exception thrown by (private) DFSClient API isHDFSEncryptionEnabled broke hacky hive
code 
> ----------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-14333
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14333
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.8.1, 3.0.0-alpha3
>            Reporter: Yongjun Zhang
>            Assignee: Yongjun Zhang
>         Attachments: HADOOP-14333.001.patch, HADOOP-14333.002.patch
>
>
> Though Hive should be fixed not to access DFSClient which is private to HADOOP, removing
the throws added by HADOOP-14104 is a quicker solution to unblock hive.
> Hive code
> {code}
> private boolean isEncryptionEnabled(DFSClient client, Configuration conf) {
>   try {
>     DFSClient.class.getMethod("isHDFSEncryptionEnabled");
>   } catch (NoSuchMethodException e) {
>     // the method is available since Hadoop-2.7.1
>     // if we run with an older Hadoop, check this ourselves
>     return !conf.getTrimmed(DFSConfigKeys.DFS_ENCRYPTION_KEY_PROVIDER_URI, "").isEmpty();
>   }
>   return client.isHDFSEncryptionEnabled();
> }
> {code}



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