David Smiley created SOLR-12312:
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Summary: 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
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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