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Posted to common-issues@hadoop.apache.org by "Rushabh S Shah (JIRA)" <ji...@apache.org> on 2017/04/20 22:05:04 UTC

[jira] [Comment Edited] (HADOOP-14333) New exception thrown by (private) DFSClient API isHDFSEncryptionEnabled broke hacky hive code

    [ https://issues.apache.org/jira/browse/HADOOP-14333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15977638#comment-15977638 ] 

Rushabh S Shah edited comment on HADOOP-14333 at 4/20/17 10:04 PM:
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bq. why is this not floated up to FileSystem and FileContext? 
I was not a part of api design when it was implemented.
But I think Transparent encryption is only supported by HDFS Filesystem (DistributedFileSystem). Thats why it's not a part of FileSystem api.


was (Author: shahrs87):
bq. why is this not floated up to FileSystem and FileContext? 
I was not a part of api design when it was implemented.
But I think Transparent encryption is only supported by HDFS Filesystem (DistributedFileSystem). Thats why it's not a part of FilsSystem api.

> 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
>
> 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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