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Posted to issues@tez.apache.org by "Rajesh Balamohan (Jira)" <ji...@apache.org> on 2019/10/07 10:20:00 UTC

[jira] [Assigned] (TEZ-4088) Create in-memory ifile writer for transferring smaller payloads (follow up of TEZ-4075)

     [ https://issues.apache.org/jira/browse/TEZ-4088?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rajesh Balamohan reassigned TEZ-4088:
-------------------------------------

    Assignee: Rajesh Balamohan

> Create in-memory ifile writer for transferring smaller payloads (follow up of TEZ-4075)
> ---------------------------------------------------------------------------------------
>
>                 Key: TEZ-4088
>                 URL: https://issues.apache.org/jira/browse/TEZ-4088
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Rajesh Balamohan
>            Assignee: Rajesh Balamohan
>            Priority: Major
>         Attachments: TEZ-4088.1.patch
>
>
> TEZ-4075 enabled data transfer over DME for smaller payloads. This helps in reducing shuffle. 
> However, it still incurs disk IO cost (+flush) in producer side. It would be good to retain smaller payloads in mem, so that disk IO costs can be saved.



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