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https://issues.apache.org/jira/browse/SOLR-915?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12656756#action_12656756
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Kay Kay commented on SOLR-915:
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Sure - That is fine with me.
My objective is to have a static method somewhere that returns an Executor ,
that could be used to launch various threads. Also - at the same time - keeping
the abstraction of Executor creation away from the user so that it could be
tweaked depending on the startup memory constraints.
> SolrCore;close() - scope to exploit parallelism among the number of
> closeHooks
> --------------------------------------------------------------------------------
>
> Key: SOLR-915
> URL: https://issues.apache.org/jira/browse/SOLR-915
> Project: Solr
> Issue Type: Improvement
> Components: search
> Environment: Tomcat 6, JRE 6
> Reporter: Kay Kay
> Assignee: Ryan McKinley
> Priority: Minor
> Fix For: 1.4
>
> Attachments: SOLR-915.patch
>
> Original Estimate: 96h
> Remaining Estimate: 96h
>
> In SolrCore: close() - all the way towards the end of the function - there
> seems to be a sequential list of close method invocation.
> if( closeHooks != null ) {
> for( CloseHook hook : closeHooks ) {
> hook.close( this );
> }
> }
> I believe this has scope to be parallelized ( actually the entire sequence of
> close operations , updateHandler,close() etc.) - by means of launching them
> in separate threads from an ExecutorService , for a much faster shutdown as
> the process definitely does not need to be sequential.
> This becomes all the more important in the multi-core context when we might
> want to shutdown and restart a SolrCore altogether.
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