[jira] [Commented] (LENS-978) Default value of "lens.client.query.poll.interval" is very small

["Puneet Gupta (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LENS-978?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15182629#comment-15182629 ] 

Puneet Gupta commented on LENS-978:
-----------------------------------

created https://reviews.apache.org/r/44438/diff/

> Default value of "lens.client.query.poll.interval" is very small
> ----------------------------------------------------------------
>
>                 Key: LENS-978
>                 URL: https://issues.apache.org/jira/browse/LENS-978
>             Project: Apache Lens
>          Issue Type: Improvement
>            Reporter: Puneet Gupta
>            Assignee: Puneet Gupta
>            Priority: Trivial
>
> The  poll interval is kept at 10 ms as of now . This causes excessive polling on the server (as most clients do not set the property to an optimum value). 
> One use case for such small value could be in a case where user wants realtime/interactive response for queries that spend very small time in execution. But in this case the user has better options available in form of "EXECUTE_WITH_TIMEOUT" rather than using async query execution followed by continuous polling for state.
> Further the EXECUTE_WITH_TIMEOUT will also be made available on CLI (which was not the case earlier) via LENS-915 
> Propose to increase the value to 5 secs ( for specific use cases, users can override this value if required)



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