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Posted to issues@hive.apache.org by "Mustafa Iman (Jira)" <ji...@apache.org> on 2020/06/22 18:45:00 UTC

[jira] [Work started] (HIVE-23746) Send task attempts async from AM to daemons

     [ https://issues.apache.org/jira/browse/HIVE-23746?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on HIVE-23746 started by Mustafa Iman.
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> Send task attempts async from AM to daemons
> -------------------------------------------
>
>                 Key: HIVE-23746
>                 URL: https://issues.apache.org/jira/browse/HIVE-23746
>             Project: Hive
>          Issue Type: Sub-task
>          Components: llap
>            Reporter: Mustafa Iman
>            Assignee: Mustafa Iman
>            Priority: Major
>
> LlapTaskCommunicator uses sync client to send task attempts. There are fixed number of communication threads (10 by default). This causes unneccessary delays when there are enough free execution slots in daemons but they do not receive all the tasks because of this bottleneck. LlapTaskCommunicator can use an async client to pass these tasks to daemons. 



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