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From "Gus Heck (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-8349) Allow sharing of large in memory data structures across cores
Date Wed, 02 Mar 2016 14:29:18 GMT

    [ https://issues.apache.org/jira/browse/SOLR-8349?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15175661#comment-15175661
] 

Gus Heck commented on SOLR-8349:
--------------------------------

Right I got around that by creating .system first and uploading before I created a collection
with a config that uses the blob store. I think some configurations that NEED the blob to
function properly will want to fail if the blob store (and/or the blob) is not available.
Both Using and not Using BlobStoreAware might be reasonable? Or maybe the interface should
have a flag identifying if it is allowable to open the server without it?

> Allow sharing of large in memory data structures across cores
> -------------------------------------------------------------
>
>                 Key: SOLR-8349
>                 URL: https://issues.apache.org/jira/browse/SOLR-8349
>             Project: Solr
>          Issue Type: Sub-task
>          Components: Server
>    Affects Versions: 5.3
>            Reporter: Gus Heck
>            Assignee: Noble Paul
>         Attachments: SOLR-8349.patch, SOLR-8349.patch, SOLR-8349.patch, SOLR-8349.patch,
SOLR-8349.patch, SOLR-8349.patch, SOLR_8349.patch
>
>
> In some cases search components or analysis classes may utilize a large dictionary or
other in-memory structure. When multiple cores are loaded with identical configurations utilizing
this large in memory structure, each core holds it's own copy in memory. This has been noted
in the past and a specific case reported in SOLR-3443. This patch provides a generalized capability,
and if accepted, this capability will then be used to fix SOLR-3443.



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