Re: Number of cores per node

2021-11-23 Thread Rahul Goswami
Tulsi Das, Thanks for pointing me to the links, but unfortunately these articles/JIRA don't answer my question. Moreover they are over a decade old and much has changed since in the Solr world :) I would still like to know people's experiences handling a large number of Solr cores on a single node

Re: Number of cores per node

2021-11-18 Thread Tulsi Das
refer this as well : https://solr-user.lucene.apache.narkive.com/d7Y5M6Cl/max-no-of-solr-cores-supported-and-how-to-restrict-a-query-to-a-particular-core On Thu, Nov 18, 2021 at 7:54 PM Tulsi Das wrote: > Probably you can take a look at this jira : > https://issues.apache.org/jira/browse/SOLR-1

Re: Number of cores per node

2021-11-18 Thread Tulsi Das
Probably you can take a look at this jira : https://issues.apache.org/jira/browse/SOLR-1028 to get an idea. On Sat, Nov 13, 2021 at 1:29 AM Rahul Goswami wrote: > To clarify, I mean the number of Solr cores per JVM instance. How many Solr > cores on one node is too many? > As mentioned, it would

Re: Number of cores per node

2021-11-12 Thread Rahul Goswami
To clarify, I mean the number of Solr cores per JVM instance. How many Solr cores on one node is too many? As mentioned, it would be nice to get the numbers for a Solr instance running in standalone mode (aka non-SolrCloud), but if not, would also be interested to know about people's experience wit

Re: Number of cores per node

2021-11-12 Thread Tulsi Das
Hi Rahul , Are you asking about the cores (number of replica's per node) or the cpu cores? On Sat, Nov 13, 2021, 12:50 AM Walter Underwood wrote: > We’ve run on AWS instances with 72 CPUs. They all get used. Throughput is > linear with the number of CPUs. You need enough free RAM to cache all of

Re: Number of cores per node

2021-11-12 Thread Walter Underwood
We’ve run on AWS instances with 72 CPUs. They all get used. Throughput is linear with the number of CPUs. You need enough free RAM to cache all of the index files in OS file buffers. The entire point of avoiding locking in the Lucene index is so that multiple threads can read it without conten

Re: Number of cores per node

2021-11-12 Thread Deepak Goel
My guess is (please note it is not a benchmark): you would need a lot of tuning to make Solr use 32 cpu cores per node. After 4 cpu cores, you would have to start tuning Solr, JVM, your app (requirement), IOP'S. Deepak "The greatness of a nation can be judged by the way its animals are treated - M