[jira] [Resolved] (IMPALA-14686) Enable long polling by default

["Michael Smith (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-14686?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Smith resolved IMPALA-14686.
------------------------------------
    Fix Version/s: Impala 5.0.0
       Resolution: Fixed

> Enable long polling by default
> ------------------------------
>
>                 Key: IMPALA-14686
>                 URL: https://issues.apache.org/jira/browse/IMPALA-14686
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Clients, Frontend
>            Reporter: Michael Smith
>            Assignee: Joe McDonnell
>            Priority: Major
>             Fix For: Impala 5.0.0
>
>
> IMPALA-13294 added support for long polling in Impala and impala-shell. This behavior is strictly better than the current behavior, allowing Impala clients to eliminate delays in completing show queries and making the experience of using Impala more responsive.
> On the fringes, clients that don't know about long polling may have slightly different timing with certain queries, as the RPC may wait the {{long_polling_time_ms}} timeout then do its own sleep.
> Set {{long_polling_time_ms}} to a short period - say 100ms - to provide better support for low-latency queries.



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