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https://issues.apache.org/jira/browse/HADOOP-9421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13638151#comment-13638151
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Luke Lu commented on HADOOP-9421:
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bq. server should always be requesting a delegation token first which a task
must have.
This is assuming you either hard code the order at the server side or having an
extra source of configuration errors. When the number of mechanism/protocols
gets large, you'll always have to make trade-offs, which IMO is not necessary
as the client initiated O(1) mechanism is not much more complex than the server
initiated O(n) (via sasl-next) mechanism.
> Add full length to SASL response to allow non-blocking readers
> --------------------------------------------------------------
>
> Key: HADOOP-9421
> URL: https://issues.apache.org/jira/browse/HADOOP-9421
> Project: Hadoop Common
> Issue Type: Sub-task
> Affects Versions: 2.0.3-alpha
> Reporter: Sanjay Radia
> Assignee: Junping Du
> Attachments: HADOOP-9421.patch
>
>
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