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https://issues.apache.org/jira/browse/SOLR-1439?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Noble Paul resolved SOLR-1439.
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Resolution: Duplicate
> Enhance PollInterval for Java Replication
> -----------------------------------------
>
> Key: SOLR-1439
> URL: https://issues.apache.org/jira/browse/SOLR-1439
> Project: Solr
> Issue Type: New Feature
> Components: replication (java)
> Environment: ALL
> Reporter: Bill Bell
> Fix For: 1.4
>
>
> I am not a huge fan of PollInterval. It would be great to add an option to
> get the Index based on exact time: PollTime="*/15 * * * *" That would run at
> every 15 minutes based on the clock. i.e. 1:00pm, 1:15pm, 1:30pm, 1:45pm,
> etc. All my slaves are sync'd using NTP, so this would work better. Since
> each slave starts differently, we cannot set the PollInterval="00:15:00"
> since they would get different indexes based on when they start. The other
> option would be to suspend polling - and start - which would be very manual I
> guess. Setting the PollInterval to 10 seconds would be getting a new index
> when the old one is still warming up. Even 10 seconds interval would not be
> good, since we get so many updates, each server would have different indexes.
> With Snap we don't have this issue.
> We get SOLR updates frequently and since they are large we cannot wait to do
> a commit at the 15 minute mark using cron. Optimize just takes too long.
> On our system we need to limit how often the slaves get the new index. We
> would like all slaves to get the index at the same time.
> From Noble Paul:
> The default pollInterval can behave the way you want (so that the fetches are
> synchronized in time by the clock). Raise a separate issue and we can fix it
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