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https://issues.apache.org/jira/browse/HIVE-13633?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15261324#comment-15261324
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Sergey Shelukhin commented on HIVE-13633:
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[~hagleitn] [~sseth] fyi relevant to signing
> LLAP: better handling of container id, attempt number, fragment number for
> external clients
> -------------------------------------------------------------------------------------------
>
> Key: HIVE-13633
> URL: https://issues.apache.org/jira/browse/HIVE-13633
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Siddharth Seth
>
> From the API discussion. We want to make sure that fields coming from
> external clients that are used by LLAP as various kinds of IDs are handled
> correctly and misbehaving clients do not cause bizarre issues. Some of the
> fields may not be practically signable (e.g. attempt number, even we
> implemented some signing scheme it would just be ugly to re-sign to retry),
> also someone could just submit the same signed split twice.
> The fields are - fragment number (and various other parts of ID, presumably),
> attempt number, container id, maybe others.
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