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From "Mark Miller (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-5714) You should be able to use one pool of memory for multiple collection's HDFS block caches.
Date Tue, 04 Mar 2014 14:33:22 GMT

    [ https://issues.apache.org/jira/browse/SOLR-5714?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13919434#comment-13919434
] 

Mark Miller commented on SOLR-5714:
-----------------------------------

Are you doing a clean first?

> You should be able to use one pool of memory for multiple collection's HDFS block caches.
> -----------------------------------------------------------------------------------------
>
>                 Key: SOLR-5714
>                 URL: https://issues.apache.org/jira/browse/SOLR-5714
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: Mark Miller
>            Assignee: Mark Miller
>             Fix For: 4.8, 5.0
>
>         Attachments: SOLR-5714.patch, SOLR-5714.patch, SOLR-5714.patch, SOLR-5714.patch
>
>
> Currently, you have to specify how much direct memory to allocate per SolrCore. This
can be inefficient, and has some negative consequences - for instance, when replicating, many
times two HDFS directories will exist for the same index briefly, which will double the RAM
used for that SolrCore.



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