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https://issues.apache.org/jira/browse/TEZ-1119?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14031420#comment-14031420
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Bikas Saha commented on TEZ-1119:
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Can this data be generated by the user and passed to the AM along with the DAG
definition and then the AM can write it out to history. From what I see the
user just wants per vertex payload to be written to history so that it can be
accessed from the UI. They can generate per entity payload-string and attach it
to the entity in question (by adding a method to the TezEntityDescriptor). The
AM simply writes this out when it receives the DAG. The users who need this can
use it and the rest of the world does not need to be bothered about it.
On the patch itself, assuming that taskId-0 attemptId-0 will always make its
way to a real task is always not valid. Task may be preempted before it can be
launched for real.
> Support display of user payloads in Tez UI
> ------------------------------------------
>
> Key: TEZ-1119
> URL: https://issues.apache.org/jira/browse/TEZ-1119
> Project: Apache Tez
> Issue Type: Sub-task
> Reporter: Hitesh Shah
> Assignee: Hitesh Shah
> Attachments: TEZ-1119.wip.patch
>
>
> Applications like Pig rely heavily on configurations bundled in as part of
> the user payload for debugging. This requires each Input/Output/Processor's
> user payload to be converted into something that easily consumable by the UI
> layer to be displayed back to the user as meaningful data.
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