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https://issues.apache.org/jira/browse/LUCENE-5703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14017737#comment-14017737
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Robert Muir commented on LUCENE-5703:
-------------------------------------

I kicked this around all i could with nightly tests, running tests over and 
over, etc. I'm seeing this reproducible fail:
{noformat}
ant test  -Dtestcase=TestDistributedMissingSort 
-Dtests.method=testDistribSearch -Dtests.seed=6B475C36C0EF9CD5 
-Dtests.nightly=true -Dtests.slow=true -Dtests.locale=ar 
-Dtests.timezone=Africa/Windhoek -Dtests.file.encoding=UTF-8
{noformat}

> Don't allocate/copy bytes all the time in binary DV producers
> -------------------------------------------------------------
>
>                 Key: LUCENE-5703
>                 URL: https://issues.apache.org/jira/browse/LUCENE-5703
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Adrien Grand
>            Assignee: Adrien Grand
>             Fix For: 4.9, 5.0
>
>         Attachments: LUCENE-5703.patch, LUCENE-5703.patch, LUCENE-5703.patch
>
>
> Our binary doc values producers keep on creating new {{byte[]}} arrays and 
> copying bytes when a value is requested, which likely doesn't help 
> performance. This has been done because of the way fieldcache consumers used 
> the API, but we should try to fix it in 5.0.



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