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From "Erick Erickson (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SOLR-1028) Automatic core loading unloading for multicore
Date Sun, 28 Oct 2012 17:07:12 GMT

     [ https://issues.apache.org/jira/browse/SOLR-1028?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Erick Erickson updated SOLR-1028:
---------------------------------

    Attachment: SOLR-1028.patch

Patch attached. This will subsume SOLR-880, keeping them separate was more trouble than it
was worth.

I'd like to commit this to trunk real soon now and let it bake a while before merging into
4.x. At least let it bake until after 4.0.1 or 4.1 (whatever) is cut.
                
> Automatic core loading unloading for multicore
> ----------------------------------------------
>
>                 Key: SOLR-1028
>                 URL: https://issues.apache.org/jira/browse/SOLR-1028
>             Project: Solr
>          Issue Type: New Feature
>          Components: multicore
>            Reporter: Noble Paul
>            Assignee: Erick Erickson
>             Fix For: 4.1
>
>         Attachments: SOLR-1028.patch
>
>
> usecase: I have many small cores (say one per user) on a single Solr box . All the cores
are not be always needed . But when I need it I should be able to directly issue a search
request and the core must be STARTED automatically and the request must be served.
> This also requires that I must have an upper limit on the no:of cores that should be
loaded at any given point in time. If the limit is crossed the CoreContainer must unload a
core (preferably the least recently used core)  
> There must be a choice of specifying some cores as fixed. These cores must never be unloaded


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