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https://issues.apache.org/jira/browse/LUCENE-8862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16865873#comment-16865873
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Atri Sharma commented on LUCENE-8862:
-------------------------------------
Visitor could have an API to take in a memory tracking object (maybe as simple
as an AtomicLong with some decorations). The patent collector passes it to
down, and every supporting collector accepts that visitor and stores the object
to update memory usage. Since the object is shared, it should be up to date at
any point in time. Of course, we will have to make the updates and reads
concurrent safe. 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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