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https://issues.apache.org/jira/browse/SOLR-4509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14221753#comment-14221753
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Mark Miller commented on SOLR-4509:
-----------------------------------
My biggest hesitation on this patch is:
{code}
+ // NOTE: The sweeper task is assuming hard-coded Jetty max-idle of 50s.
+ final Runnable sweeper = new Runnable() {
+ public void run() {
+ mgr.closeIdleConnections(40, TimeUnit.SECONDS);
+ }
+ };
+ final ScheduledExecutorService stp = Executors.newScheduledThreadPool(1);
+ stp.scheduleWithFixedDelay(sweeper, 5, 5, TimeUnit.SECONDS);
{code}
> Disable Stale Check - Distributed Search (Performance)
> ------------------------------------------------------
>
> Key: SOLR-4509
> URL: https://issues.apache.org/jira/browse/SOLR-4509
> Project: Solr
> Issue Type: Improvement
> Components: search
> Environment: 5 node SmartOS cluster (all nodes living in same global
> zone - i.e. same physical machine)
> Reporter: Ryan Zezeski
> Priority: Minor
> Attachments: IsStaleTime.java, SOLR-4509-4_4_0.patch,
> SOLR-4509.patch, baremetal-stale-nostale-med-latency.dat,
> baremetal-stale-nostale-med-latency.svg,
> baremetal-stale-nostale-throughput.dat, baremetal-stale-nostale-throughput.svg
>
>
> By disabling the Apache HTTP Client stale check I've witnessed a 2-4x
> increase in throughput and reduction of over 100ms. This patch was made in
> the context of a project I'm leading, called Yokozuna, which relies on
> distributed search.
> Here's the patch on Yokozuna: https://github.com/rzezeski/yokozuna/pull/26
> Here's a write-up I did on my findings:
> http://www.zinascii.com/2013/solr-distributed-search-and-the-stale-check.html
> I'm happy to answer any questions or make changes to the patch to make it
> acceptable.
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