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https://issues.apache.org/jira/browse/SOLR-12312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16464372#comment-16464372
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David Smiley commented on SOLR-12312:
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Latest patch looks good [~millerjeff0]; I like how you identified the re-use of
an existing constant for this that the writer is using. I'll probably reword a
comment since I can be obsessive about trivialities. I'll commit "soon".
> Replication's IndexFetcher buf size can be initialized smarter to not waste
> RAM/GC
> ----------------------------------------------------------------------------------
>
> Key: SOLR-12312
> URL: https://issues.apache.org/jira/browse/SOLR-12312
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: replication (java)
> Reporter: David Smiley
> Priority: Minor
> Time Spent: 40m
> Remaining Estimate: 0h
>
> IndexFetcher's constructor knows the size of the file it's going to transfer.
> As-such, it ought to initialize the "buf" field to no larger than this size.
> This has been shown to waste Java heap/GC in an environment with lots of
> cores of small indexes and thus small files.
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