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https://issues.apache.org/jira/browse/HADOOP-14104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15977287#comment-15977287
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Yongjun Zhang commented on HADOOP-14104:
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HI [~rushabh.shah], [~andrew.wang], [~daryn],
Just noticed that he change of adding "throws" in the public API of DFSClient
breaks hive, which accesses DFSClient, thought it should not because DFSClient
is private.
public boolean isHDFSEncryptionEnabled() throws IOException{
{code}
* Hadoop DFS users should obtain an instance of
* DistributedFileSystem, which uses DFSClient to handle
* filesystem tasks.
*
********************************************************/
@InterfaceAudience.Private
public class DFSClient implements java.io.Closeable, RemotePeerFactory,
DataEncryptionKeyFactory {
{code}
Since the impact is wide (many different versions of Hive), we can remove the
throws from this API as a temporary solution. And simply return false when it
throws, do you guys agree?
We should also let hive to fix their code not to access private interface of
Hadoop.
Thanks.
> Client should always ask namenode for kms provider path.
> --------------------------------------------------------
>
> Key: HADOOP-14104
> URL: https://issues.apache.org/jira/browse/HADOOP-14104
> Project: Hadoop Common
> Issue Type: Improvement
> Components: kms
> Reporter: Rushabh S Shah
> Assignee: Rushabh S Shah
> Fix For: 2.8.1, 3.0.0-alpha3
>
> Attachments: HADOOP-14104-branch-2.8.patch,
> HADOOP-14104-branch-2.patch, HADOOP-14104-trunk.patch,
> HADOOP-14104-trunk-v1.patch, HADOOP-14104-trunk-v2.patch,
> HADOOP-14104-trunk-v3.patch, HADOOP-14104-trunk-v4.patch,
> HADOOP-14104-trunk-v5.patch
>
>
> According to current implementation of kms provider in client conf, there can
> only be one kms.
> In multi-cluster environment, if a client is reading encrypted data from
> multiple clusters it will only get kms token for local cluster.
> Not sure whether the target version is correct or not.
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