[
https://issues.apache.org/jira/browse/MAPREDUCE-5663?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13872989#comment-13872989
]
Devaraj Das commented on MAPREDUCE-5663:
----------------------------------------
Haven't read the issue in detail yet, but a quick comment on what [~sseth]
said. In HBase, we have client talking to ZK (preconfigured quorum), and it
locates the master from a specific znode (also preconfigured). The URI could be
faked there (either as hbase:// and reading the ZK data from the configuration
that is available in the context, or, hbase://quorum/znode as [~enis] just
noted).
> Add an interface to Input/Ouput Formats to obtain delegation tokens
> -------------------------------------------------------------------
>
> Key: MAPREDUCE-5663
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5663
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Reporter: Siddharth Seth
> Assignee: Michael Weng
> Attachments: MAPREDUCE-5663.4.txt, MAPREDUCE-5663.5.txt,
> MAPREDUCE-5663.6.txt, MAPREDUCE-5663.patch.txt, MAPREDUCE-5663.patch.txt2,
> MAPREDUCE-5663.patch.txt3
>
>
> Currently, delegation tokens are obtained as part of the getSplits /
> checkOutputSpecs calls to the InputFormat / OutputFormat respectively.
> This works as long as the splits are generated on a node with kerberos
> credentials. For split generation elsewhere (AM for example), an explicit
> interface is required.
--
This message was sent by Atlassian JIRA
(v6.1.5#6160)
