[jira] [Commented] (SOLR-16487) Improve calculation of poll interval for replicas

["Justin Sweeney (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-16487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17697621#comment-17697621 ] 

Justin Sweeney commented on SOLR-16487:
---------------------------------------

I've modified this issue and the associated PR to be limited to only the changes for the poll interval for replication to make this more digestible.

> Improve calculation of poll interval for replicas
> -------------------------------------------------
>
>                 Key: SOLR-16487
>                 URL: https://issues.apache.org/jira/browse/SOLR-16487
>             Project: Solr
>          Issue Type: Improvement
>          Components: replication (java)
>    Affects Versions: 9.0, 8.11.2
>            Reporter: Justin Sweeney
>            Assignee: Justin Sweeney
>            Priority: Minor
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> Currently the polling for replication is fairly simply, but can lead to polling too often. As an example if you had the following config for commits:
> {code:java}
> <autoCommit>
>     <maxTime>15000</maxTime>
>     <openSearcher>false</openSearcher>
> </autoCommit>
> <autoSoftCommit>
>     <maxTime>60000</maxTime>
> </autoSoftCommit> {code}
> The current logic would setup polling to be half of the autoCommit time, so poll every 7.5 seconds. However since a new searcher isn't opened, there will only be changes reflected every 60 seconds on the leader. We can make this logic a bit smarter knowing that the replication handler won't reflect changes until a new searcher is opened.



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