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https://issues.apache.org/jira/browse/HIVE-20147?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Prasanth Jayachandran updated HIVE-20147:
-----------------------------------------
    Attachment: HIVE-20147.1.patch

> Hive streaming ingest is contented on synchronized logging
> ----------------------------------------------------------
>
>                 Key: HIVE-20147
>                 URL: https://issues.apache.org/jira/browse/HIVE-20147
>             Project: Hive
>          Issue Type: Bug
>          Components: Streaming, Transactions
>    Affects Versions: 4.0.0, 3.2.0
>            Reporter: Prasanth Jayachandran
>            Assignee: Prasanth Jayachandran
>            Priority: Major
>         Attachments: HIVE-20147.1.patch, Screen Shot 2018-07-11 at 4.17.27 
> PM.png, sync-logger-contention.svg
>
>
> In one of the observed profile, >30% time spent on synchronized logging. See 
> attachment. 
> We should use async logging for hive streaming ingest by default.  !Screen 
> Shot 2018-07-11 at 4.17.27 PM.png!



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