Re: Multiple solr instances on one server
This is an impossibly vague question to answer. You haven't provided _anything_ useful to help answer. How much physical memory is on the machine? How man processors? What kind of searching? Faceting? Indexing rate? How many documents? What kind of documents? What evidence do you have that you _need_ to run multiple JVMs? Is this a case of premature optimization? About the only reason to worry about this is if you are encountering long stop-the-world JVM pauses. Have you any evidence of that? Unless and until you do there's not much point in running multiple JVMs. Or, I guess, if your queries are taking too long to come back even under light load. And even with all that information, the only honest answer is "try some variations and find out". Here's a straw-man proposal: Start by allocating 16G to your JVMs until you have allocated a total of around 30% of your physical memory to your JVMs. Say you have 128G, that would be 2 JVMs. Then measure/tune/measure, _then_ decide. Best, Erick On Tue, Oct 4, 2016 at 7:55 PM, shalu <shalusingh0...@gmail.com> wrote: > We are also require multiple solr instances to divide the heap space between > cores. What is the best way to do it? > > > > -- > View this message in context: > http://lucene.472066.n3.nabble.com/Multiple-solr-instances-on-one-server-tp4248411p4299645.html > Sent from the Solr - User mailing list archive at Nabble.com.
Re: Multiple solr instances on one server
We are also require multiple solr instances to divide the heap space between cores. What is the best way to do it? -- View this message in context: http://lucene.472066.n3.nabble.com/Multiple-solr-instances-on-one-server-tp4248411p4299645.html Sent from the Solr - User mailing list archive at Nabble.com.
Re: Multiple solr instances on one server
See the Solr Reference Guide: " -s Sets the solr.solr.home system property; Solr will create core directories under this directory. This allows you to run multiple Solr instances on the same host while reusing the same server directory set using the -d parameter. If set, the specified directory should contain a solr.xml file, unless solr.xml exists in ZooKeeper. The default value is server/solr. " https://cwiki.apache.org/confluence/display/solr/Solr+Start+Script+Reference -- Jack Krupansky On Mon, Jan 4, 2016 at 10:28 AM, Mugeesh Husain <muge...@gmail.com> wrote: > you could start solr with multiple port like below > > > bin/solr start -p 8983 one instance > bin/solr start -p 8984 second instance and so its depend on you > > > > -- > View this message in context: > http://lucene.472066.n3.nabble.com/Multiple-solr-instances-on-one-server-tp4248411p4248413.html > Sent from the Solr - User mailing list archive at Nabble.com. >
Multiple solr instances on one server
Hello, (Solr 5.2.1) I'm wanting to run multple solr instances on one server, does anyone know which is better- allowing each solr instance to use their own internal jetty or to install jetty on the server? Many thanks Philippa
Re: Multiple solr instances on one server
Hello, Thanks for your reply. Do you know if there are many disadvantages to running multiple solr instances all running their own internal jetty. I'm trying to work out if this would work or if I would need to install jetty myself on the machine and use that instead. I'm not sure how many solr instances I would need to run yet, it could be as high as 10. From: Mugeesh Husain <muge...@gmail.com> Sent: 04 January 2016 15:28 To: solr-user@lucene.apache.org Subject: Re: Multiple solr instances on one server you could start solr with multiple port like below bin/solr start -p 8983 one instance bin/solr start -p 8984 second instance and so its depend on you -- View this message in context: http://lucene.472066.n3.nabble.com/Multiple-solr-instances-on-one-server-tp4248411p4248413.html Sent from the Solr - User mailing list archive at Nabble.com.
Re: Multiple solr instances on one server
you could start solr with multiple port like below bin/solr start -p 8983 one instance bin/solr start -p 8984 second instance and so its depend on you -- View this message in context: http://lucene.472066.n3.nabble.com/Multiple-solr-instances-on-one-server-tp4248411p4248413.html Sent from the Solr - User mailing list archive at Nabble.com.
Re: Multiple solr instances on one server
you could use inbuilt(internal) jetty in the production, its depend on requirement. if you want to use other container, tomcat would be the best. Elaborate your requirement Please why you want to use multiple instance in a single server ? -- View this message in context: http://lucene.472066.n3.nabble.com/Multiple-solr-instances-on-one-server-tp4248411p4248429.html Sent from the Solr - User mailing list archive at Nabble.com.
Re: Multiple solr instances on one server
We store a huge amount of data across 10 shards and are getting to a point where we keep having to up the heap to stop solr from crashing. We are trying to keep the heap size down, and plan to to host multiple solr instances on each server which will have a much smaller heap size. From: Mugeesh Husain <muge...@gmail.com> Sent: 04 January 2016 16:01 To: solr-user@lucene.apache.org Subject: Re: Multiple solr instances on one server you could use inbuilt(internal) jetty in the production, its depend on requirement. if you want to use other container, tomcat would be the best. Elaborate your requirement Please why you want to use multiple instance in a single server ? -- View this message in context: http://lucene.472066.n3.nabble.com/Multiple-solr-instances-on-one-server-tp4248411p4248429.html Sent from the Solr - User mailing list archive at Nabble.com.
Re: Multiple solr instances on one server
Right, that's the most common reason to run multiple JVMs. You must be running multiple replicas on each box though to make that viable. By running say 2 JVMS, you're essentially going from hosting, say, 4 replicas in one JVM to 2 replicas in each of 2 JVMs. You'll incur some overhead due to the second instance of Java running, but that's usually negligible. There's no reason at all to run an independent Jetty, just use the startup scripts to specify a second port as outlined above. If you use the startup script and specify the -e cloud example (on your local box, say), go ahead and specify two instances of Solr. The script will echo out the exact command used to start them up and you can use that as an example. Best, Erick On Mon, Jan 4, 2016 at 8:16 AM, philippa griggs <philippa.gri...@hotmail.co.uk> wrote: > We store a huge amount of data across 10 shards and are getting to a point > where we keep having to up the heap to stop solr from crashing. We are > trying to keep the heap size down, and plan to to host multiple solr > instances on each server which will have a much smaller heap size. > > From: Mugeesh Husain <muge...@gmail.com> > Sent: 04 January 2016 16:01 > To: solr-user@lucene.apache.org > Subject: Re: Multiple solr instances on one server > > you could use inbuilt(internal) jetty in the production, its depend on > requirement. > > if you want to use other container, tomcat would be the best. > > Elaborate your requirement Please why you want to use multiple instance in a > single server ? > > > > -- > View this message in context: > http://lucene.472066.n3.nabble.com/Multiple-solr-instances-on-one-server-tp4248411p4248429.html > Sent from the Solr - User mailing list archive at Nabble.com.
