SolrCore;close() - scope to exploit parallelism among the number of closeHooks
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Key: SOLR-915
URL: https://issues.apache.org/jira/browse/SOLR-915
Project: Solr
Issue Type: Improvement
Environment: Tomcat 6, JRE 6
Reporter: Kay Kay
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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