Re: number of Solr indexes per Tomcat instance
That's a really good point. I didn't think about the GCs. Obviously we don't want to have all the indexes hanging if full GC occur. Wee running a +8GB heap so GCs are very important to us. Thanks Erik wojtekpia wrote: > > I ran into trouble running several cores (either as Solr multi-core or as > separate web apps) in a single JVM because the Java garbage collector > would freeze all cores during a collection. This may not be an issue if > you're not dealing with large amounts of memory. My solution is to run > each web app in its own JVM and Tomcat instance. > > -- View this message in context: http://www.nabble.com/number-of-Solr-indexes-per-Tomcat-instance-tp26027238p26029654.html Sent from the Solr - User mailing list archive at Nabble.com.
Re: number of Solr indexes per Tomcat instance
I ran into trouble running several cores (either as Solr multi-core or as separate web apps) in a single JVM because the Java garbage collector would freeze all cores during a collection. This may not be an issue if you're not dealing with large amounts of memory. My solution is to run each web app in its own JVM and Tomcat instance. -- View this message in context: http://www.nabble.com/number-of-Solr-indexes-per-Tomcat-instance-tp26027238p26029243.html Sent from the Solr - User mailing list archive at Nabble.com.
Re: number of Solr indexes per Tomcat instance
Probably multicore would give you better performance... I think most important factors to take into account are the size of the index and the traffic you have to hold. With enought RAM memory you can hold 40 cores in a singe solr instance (or even more) but depending on the traffic you have to hold you will suffer of slow response times. Erik_l wrote: > > We're not using multicore. Today, one Tomcat instance host a number of > indexes in form of 10 Solr indexes (10 individual war files). > > > Marc Sturlese wrote: >> >> Are you using one single solr instance with multicore or multiple solr >> instances with one index each? >> >> Erik_l wrote: >>> >>> Hi, >>> >>> Currently we're running 10 Solr indexes inside a single Tomcat6 >>> instance. In the near future we would like to add another 30-40 indexes >>> to every Tomcat instance we host. What are the factors we have to take >>> into account when planning for such deployments? Obviously we do know >>> the sizes of the indexes but for example how much memory does Solr need >>> to be allocated given that each index is treated as a webapp in Tomcat. >>> Also, do you know if Tomcat has got a limit in number of apps that can >>> be deployed (maybe I should ask this questions in a Tomcat forum). >>> >>> Thanks >>> E >>> >> >> > > -- View this message in context: http://www.nabble.com/number-of-Solr-indexes-per-Tomcat-instance-tp26027238p26028437.html Sent from the Solr - User mailing list archive at Nabble.com.
Re: number of Solr indexes per Tomcat instance
We're not using multicore. Today, one Tomcat instance host a number of indexes in form of 10 Solr indexes (10 individual war files). Marc Sturlese wrote: > > Are you using one single solr instance with multicore or multiple solr > instances with one index each? > > Erik_l wrote: >> >> Hi, >> >> Currently we're running 10 Solr indexes inside a single Tomcat6 instance. >> In the near future we would like to add another 30-40 indexes to every >> Tomcat instance we host. What are the factors we have to take into >> account when planning for such deployments? Obviously we do know the >> sizes of the indexes but for example how much memory does Solr need to be >> allocated given that each index is treated as a webapp in Tomcat. Also, >> do you know if Tomcat has got a limit in number of apps that can be >> deployed (maybe I should ask this questions in a Tomcat forum). >> >> Thanks >> E >> > > -- View this message in context: http://www.nabble.com/number-of-Solr-indexes-per-Tomcat-instance-tp26027238p26028083.html Sent from the Solr - User mailing list archive at Nabble.com.
Re: number of Solr indexes per Tomcat instance
Are you using one single solr instance with multicore or multiple solr instances with one index each? Erik_l wrote: > > Hi, > > Currently we're running 10 Solr indexes inside a single Tomcat6 instance. > In the near future we would like to add another 30-40 indexes to every > Tomcat instance we host. What are the factors we have to take into account > when planning for such deployments? Obviously we do know the sizes of the > indexes but for example how much memory does Solr need to be allocated > given that each index is treated as a webapp in Tomcat. Also, do you know > if Tomcat has got a limit in number of apps that can be deployed (maybe I > should ask this questions in a Tomcat forum). > > Thanks > E > -- View this message in context: http://www.nabble.com/number-of-Solr-indexes-per-Tomcat-instance-tp26027238p26027304.html Sent from the Solr - User mailing list archive at Nabble.com.
number of Solr indexes per Tomcat instance
Hi, Currently we're running 10 Solr indexes inside a single Tomcat6 instance. In the near future we would like to add another 30-40 indexes to every Tomcat instance we host. What are the factors we have to take into account when planning for such deployments? Obviously we do know the sizes of the indexes but for example how much memory does Solr need to be allocated given that each index is treated as a webapp in Tomcat. Also, do you know if Tomcat has got a limit in number of apps that can be deployed (maybe I should ask this questions in a Tomcat forum). Thanks E -- View this message in context: http://www.nabble.com/number-of-Solr-indexes-per-Tomcat-instance-tp26027238p26027238.html Sent from the Solr - User mailing list archive at Nabble.com.
