Re: Some guidance on memory requirements/usage/tuning

2015-06-30 Thread Alessandro Benedetti
Am I wrong or the current type of default IndexDirectory is the "NRTCachingDirectoryFactory" since Solr 4.x ? If I remember well this Factory is creating a Directory implementation built on top of a "MMapDirectory". In this case we should rely on the Memory Mapping Operative System feature to prope

Re: Some guidance on memory requirements/usage/tuning

2015-06-30 Thread Erick Erickson
bq: The type of queries that are run can return anything from 1 million to 9.5 million documents, and typically run for anything from 20 to 45 minutes. Uhhh, are you literally setting the &rows parameter to over 9.5M and getting that many docs all at once? Or is that just numFound and you're _real

Re: Some guidance on memory requirements/usage/tuning

2015-06-30 Thread Toke Eskildsen
On Tue, 2015-06-30 at 16:39 +1000, Caroline Hind wrote: > We have very recently upgraded from SOLR 4.1 to 5.2.1, and at the same > time increased the physical RAM from 24Gb to 96Gb. We run multiple > cores on this one server, approximately 20 in total, but primarily we > have one that is huge in co

Some guidance on memory requirements/usage/tuning

2015-06-29 Thread Caroline Hind
Hi, I am very new to SOLR, and would appreciate some guidance if anyone has the time to offer it. We have very recently upgraded from SOLR 4.1 to 5.2.1, and at the same time increased the physical RAM from 24Gb to 96Gb. We run multiple cores on this one server, approximately 20 in total, but