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https://issues.apache.org/jira/browse/SOLR-1416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12997650#comment-12997650
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Mark Miller commented on SOLR-1416:
-----------------------------------
Agreed - without some credible data, this seems like the wrong change. The
synch'd operation would appear to be too cheap to benefit from a reader/writer
lock.
Not sure if a ConcurrentHashMap could be used though...I think we would lose a
slightly higher sync level we need?
> reduce contention in CoreContainer#getCore()
> --------------------------------------------
>
> Key: SOLR-1416
> URL: https://issues.apache.org/jira/browse/SOLR-1416
> Project: Solr
> Issue Type: Improvement
> Components: multicore
> Reporter: Noble Paul
> Priority: Minor
> Attachments: SOLR-1416.patch
>
>
> every call to CoreContainer#getCore() is synchronized . We should reduce the
> contention . The writes are very infrequent and reads are frequent . How
> about using a ReadWriterLock?
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