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https://issues.apache.org/jira/browse/SOLR-12198?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16431591#comment-16431591
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ASF subversion and git services commented on SOLR-12198:
--------------------------------------------------------

Commit 0e4605cc45a5aeada284cdc319b465231220b916 in lucene-solr's branch 
refs/heads/master from [~joel.bernstein]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=0e4605c ]

SOLR-12198: Stream Evaluators should not copy matrices needlessly


> Stream Evaluators should not copy matrices needlessly
> -----------------------------------------------------
>
>                 Key: SOLR-12198
>                 URL: https://issues.apache.org/jira/browse/SOLR-12198
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Joel Bernstein
>            Assignee: Joel Bernstein
>            Priority: Major
>             Fix For: 7.4
>
>         Attachments: SOLR-12198.patch
>
>
> Currently several of the Stream Evaluators that work with matrices are 
> creating multiple copies of the underlying multi-dimensional arrays. This can 
> lead to excessive memory usage. This ticket will change these implementations 
> so copies of the multi-dimensional arrays that back a matrix are only copied 
> when the *copyOf* function is used.



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