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https://issues.apache.org/jira/browse/HADOOP-14333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15977642#comment-15977642
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Yongjun Zhang commented on HADOOP-14333:
----------------------------------------
Thanks [~aw] and [~shahrs87].
Agree that Hive project should have raised the issue before using it.
{quote}
unblock from what, exactly?
{quote}
The hive code that is broken is listed in the description. I was trying to
propose that, as a temporary solution, we can let isHDFSEncryptionEnabled not
to throw. Then we can coordinate a change between hadoop and hive to fix
together.
Thanks Rushabh for the sample code. I think in the case of SocketTimeOut, we
should do some retry. If it's other exception, we return false. Let me post a
patch to see if it makes sense.
Thanks,
> 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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