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https://issues.apache.org/jira/browse/HBASE-20900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16727021#comment-16727021
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Wei-Chiu Chuang commented on HBASE-20900:
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Extend FsDelegationToken such that it gets multiple delegation tokens at once.
Possible scenarios where multiple delegation tokens may be associated with a
file system: 1. Viewfs-based HDFS federation 2. HDFS at-rest encryption.
The patch is sizable, but the patch is straightforward -- update the code to
pass around multiple delegation tokens in protobuf messages.
No test yet -- will add unit tests later.
> Improve FsDelegationToken to support KMS delegation tokens
> ----------------------------------------------------------
>
> Key: HBASE-20900
> URL: https://issues.apache.org/jira/browse/HBASE-20900
> Project: HBase
> Issue Type: Sub-task
> Reporter: Wei-Chiu Chuang
> Assignee: Wei-Chiu Chuang
> Priority: Major
> Attachments: HBASE-20900.master.001.patch
>
>
> Currently FsDelegationToken acquires HDFS delegation token. Any tools that
> use it to access encryption zone files could fail because they don't have KMS
> delegation token. We should fix it.
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