This is highly anecdotal, but I tried SOLR-1880 with 4.7 for some tests I was running, and saw almost a 30% improvement in latency. If you¹re only doing document selection, it¹s definitely worth having.
I¹m reasonably certain that the patch would work in 4.6 too, but the test file relies on some test infrastructure changes in 4.7, so I couldn¹t try that without re-writing the test. On 3/16/14, 7:31 AM, "Shalin Shekhar Mangar" <shalinman...@gmail.com> wrote: >On Thu, Mar 13, 2014 at 1:49 PM, remi tassing <tassingr...@gmail.com> >wrote: >> >> I've used the fl=id parameter to avoid retrieving the actual documents >> (step <4> in your mail) but the problem still exists. >> Any ideas on how to find the merging time(step <3>)? > >Actually that doesn't skip steps #4 and #5. That optimization will be >available in Solr 4.8 (the next release). See >https://issues.apache.org/jira/browse/SOLR-1880 > >-- >Regards, >Shalin Shekhar Mangar.
