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https://issues.apache.org/jira/browse/SOLR-647?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12621812#action_12621812
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Grant Ingersoll commented on SOLR-647:
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I'd like to see some more documentation on this. Namely, when should
SolrCore.Reference be used, etc. This may just be for my own edification. For
instance, what's the relationship in MultiCore between getCore and acquireCore
and openCore? (Since openCore just calls acquireCore w/ a null reference, we
probably should just call it acquireCore as well.)
Also, when do would I call Reference.release() versus core.close()?
How does CoreDescriptor.reloadCore factor in? I don't see that it is used.
Why would I call that instead of MultiCore.reload()?
Part of these questions may just be bigger questions related to Multicore all
together.
> Do SolrCore.close() in a refcounted way
> ---------------------------------------
>
> Key: SOLR-647
> URL: https://issues.apache.org/jira/browse/SOLR-647
> Project: Solr
> Issue Type: Bug
> Affects Versions: 1.3
> Reporter: Noble Paul
> Fix For: 1.3
>
> Attachments: solr-647.patch, solr-647.patch, solr-647.patch,
> solr-647.patch, solr-647.patch, SOLR-647.patch, SOLR-647.patch
>
>
> The method _SolrCore.close()_ directly closes the core . It can cause
> Exceptions for in-flight requests. The _close()_ method should just do a
> decrement on refcount and the actual close must happen when the last request
> being processed by that core instance is completed
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