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https://issues.apache.org/jira/browse/LUCENE-8862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16866423#comment-16866423
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Atri Sharma commented on LUCENE-8862:
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[~jpountz] What are your thoughts on the options of implementing this approach,
then? The way I see it, we could either add a default method to Collector
interface to accept the memory accounting object and let the Collector
implementation deal with how it wants to account for memory consumption. The
other way is to add the introduce the visitor API, but I agree that it has its
caveats.
The objective is to have a generic collector-level interface that can be used
to build constructs for monitoring and limiting memory usage per query.
Implementing Accountable per Collector will not give us that flexibility
without a couple of instanceof checks, IIUC.
Thoughts?
> Collector Level Dynamic Memory Accounting
> -----------------------------------------
>
> Key: LUCENE-8862
> URL: https://issues.apache.org/jira/browse/LUCENE-8862
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Atri Sharma
> Priority: Major
>
> Inspired from LUCENE-8855, I am thinking of adding a new interface which
> tracks dynamic memory used by Collectors. This shall allow users to get an
> accountability as to the memory usage of their Collectors and better plan
> their resource capacity. This shall also allow us to add Collector level
> limits for memory usage, thus allowing users a finer control over their
> resources.
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