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https://issues.apache.org/jira/browse/MAPREDUCE-5275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13670949#comment-13670949
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Zhijie Shen commented on MAPREDUCE-5275:
----------------------------------------
bq. I had an offline discussion with vinod, For this to work we would need
build time dependency. What we should do here?
One way to walk around is as follows:
{code}
public static Token<?>
getDelegationToken(Credentials credentials, String namenode) {
return (Token<?>)
credentials.getToken(new Text(namenode));
}
{code}
No additional dependency is required, but is binary compatible.
> Mapreduce API: TokenCache incompatibility issues with MR1
> ---------------------------------------------------------
>
> Key: MAPREDUCE-5275
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5275
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Reporter: Zhijie Shen
> Assignee: Mayank Bansal
> Attachments: MAPREDUCE-5275-trunk-1.patch
>
>
> There're following incompatibility issues:
> * Token<DelegationTokenIdentifier> getDelegationToken(Credentials, String) is
> removed
> * Credentials loadTokens(String, Configuration) changes to Credentials
> loadTokens(String, JobConf)
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