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https://issues.apache.org/jira/browse/DRILL-5270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16648613#comment-16648613
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ASF GitHub Bot commented on DRILL-5270:
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kkhatua commented on issue #1250: DRILL-5270: Improve loading of profiles
listing in the WebUI
URL: https://github.com/apache/drill/pull/1250#issuecomment-429493831
@priteshm this required some more rework, which I'm hoping I've addressed.
We can review and try to get this in as part of 1.15.0
I've rebased this on top of latest master, accounting for conflicts due to
DRILL-6053 (locking of PStore), DRILL-6422 (shaded Guava imports) and
DRILL-6492 (schema/workspace insensitivity).
@arina-ielchiieva / @parthchandra / @ilooner .... any one up for reviewing
this?
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> Improve loading of profiles listing in the WebUI
> ------------------------------------------------
>
> Key: DRILL-5270
> URL: https://issues.apache.org/jira/browse/DRILL-5270
> Project: Apache Drill
> Issue Type: Improvement
> Components: Web Server
> Affects Versions: 1.9.0
> Reporter: Kunal Khatua
> Assignee: Kunal Khatua
> Priority: Major
> Fix For: 1.15.0
>
>
> Currently, as the number of profiles increase, we reload the same list of
> profiles from the FS.
> An ideal improvement would be to detect if there are any new profiles and
> only reload from the disk then. Otherwise, a cached list is sufficient.
> For a directory of 280K profiles, the load time is close to 6 seconds on a 32
> core server. With the caching, we can get it down to as much as a few
> milliseconds.
> To render the cache as invalid, we inspect the last modified time of the
> directory to confirm whether a reload is needed.
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