Hello Deepak, We are not querying when indexing is going on. Whatever CPU graph I shared for 6.2.1 and 6.5.1 was only while we do batch indexing. During that time we don't query and no queries are getting executed.
We index in a batch with a rate of around 100 documents / sec. And it's not so high too. But same piece of code and same config, with 6.2.1 CPU is normal and in 6.5.1 it always stays above 90% or 95%. @Solr Experts, >From one of the thread by " Yasoob <http://lucene.472066.n3.nabble.com/CommitScheduler-Thread-blocked-due-to-excessive-number-of-Merging-Threads-tp4353964p4354334.html> " it's mentioned as /I compared the source code for the two versions and found that different merge functions were being used to merge the postings. In 5.4, the default merge method of FieldsConsumer class was being used. While in 6.6, the PerFieldPostingsFormat's merge method is being used. I checked and it looks like this change went in Solr 6.3. So I replaced the 6.6 instance with 6.2.1 and re-indexed all the data, and it is working very well, even with the settings I had initially used. / Is anyone else facing this issue or any fixes got released in future build for this ? Keep us posted.... Deepak Goel wrote > Please post the exact results. Many a times the high cpu utilisation may > be > a boon as it improves query response times > > On Tue, 17 Apr 2018, 13:55 mganeshs, < > mganeshs@ > > wrote: > >> Regarding query times, we couldn't see big improvements. Both are more or >> less same. >> >> Our main worry is that, why CPU usage is so high in 6.5.1 and above ? >> What's >> going wrong ? >> >> Is any one else facing this sort of issue ? If yes, how to bring down the >> CPU usage? Is there any settings which we need to set ( not default one ) >> in >> 6.5.1 ? >> >> >> >> -- >> Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html >> Deepak Goel wrote > Please post the exact results. Many a times the high cpu utilisation may > be > a boon as it improves query response times > > On Tue, 17 Apr 2018, 13:55 mganeshs, < > mganeshs@ > > wrote: > >> Regarding query times, we couldn't see big improvements. Both are more or >> less same. >> >> Our main worry is that, why CPU usage is so high in 6.5.1 and above ? >> What's >> going wrong ? >> >> Is any one else facing this sort of issue ? If yes, how to bring down the >> CPU usage? Is there any settings which we need to set ( not default one ) >> in >> 6.5.1 ? >> >> >> >> -- >> Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html >> -- Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html
