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Posted to dev@tez.apache.org by "Jonathan Turner Eagles (Jira)" <ji...@apache.org> on 2021/04/23 21:09:00 UTC

[jira] [Resolved] (TEZ-992) Recovery data should not be written on AsyncDispatcher thread

     [ https://issues.apache.org/jira/browse/TEZ-992?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Turner Eagles resolved TEZ-992.
----------------------------------------
    Resolution: Won't Fix

Closing recovery v1 bugs/features.

> Recovery data should not be written on AsyncDispatcher thread
> -------------------------------------------------------------
>
>                 Key: TEZ-992
>                 URL: https://issues.apache.org/jira/browse/TEZ-992
>             Project: Apache Tez
>          Issue Type: Sub-task
>            Reporter: Bikas Saha
>            Assignee: Jeff Zhang
>            Priority: Major
>         Attachments: DAG_FinishSaving.gv, DAG_FinishSaving_2.gv, DAG_FinishSaving_2.pdf, TEZ-992.patch, Vertex_FinishSaving.gv, Vertex_FinishSaving_2.gv, Vertex_FinishSaving_2.pdf
>
>
> This may block the DAG operations in case the recovery data needs to be synchronously stored. The operations requiring this blocking operation should change their state machines to wait for the store operation before moving ahead. They will move ahead after they receive notification from the RecoveryService that their operation has completed.



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