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multiple indices
by Michael Ravits
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dear solrs - thanks for all your help.
I have multiple applications (blogs/forums/video/etc) - each of these is independent (no need to perform queries on multiple indices). Would it be best to use multiple instances of SOLR/JVM - one for each index or use a solution where only one JVM instance is running (maybe solr-215?)? Considering mostly performance and load on the servers. --------------------------------- Be a better Heartthrob. Get better relationship answers from someone who knows. Yahoo! Answers - Check it out. |
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Re: multiple indices
by hossman_lucene
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: I have multiple applications (blogs/forums/video/etc) - each of these : is independent (no need to perform queries on multiple indices). : Would it be best to use multiple instances of SOLR/JVM - one for each : index or use a solution where only one JVM instance is running (maybe : solr-215?)? you don't actaully need multiple JVM instances to run multiple Solr instance ... you can configure your ServletContainer to run the solr.war in multiple contexts each of which has a differnet solrconfig.xml and schema.xml (using JNDI) ... that way you get most of hte benefits of isolated instances but also can also take advantage of a single large heap and common connection management. -Hoss |
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Re: multiple indices
by rossini
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I have 3 different instances of solr on jetty 6.1.13, but you need the jetty
plus. my etc/jetty.xml looks like this <Call name="addLifeCycle"> <Arg> <New class="org.mortbay.jetty.webapp.WebAppContext"> <Arg><Ref id="Contexts"/></Arg> <Arg><SystemProperty name="jetty.home" default="."/>* /webapps/solr1*</Arg> <Arg>*/solr1*</Arg> <Set name="ConfigurationClasses"><Ref id="plusConfig"/></Set> <Set name="defaultsDescriptor"><SystemProperty name=" jetty.home" default="."/>/etc/webdefault.xml</Set> <New id="solr_home" class=" org.mortbay.jetty.plus.naming.EnvEntry"> <Arg>solr/home</Arg> <Arg type="java.lang.String"><SystemProperty name=" jetty.home" default="."/>override this value</Arg> </New> </New> </Arg> </Call> <Call name="addLifeCycle"> <Arg> <New class="org.mortbay.jetty.webapp.WebAppContext"> <Arg><Ref id="Contexts"/></Arg> <Arg><SystemProperty name="jetty.home" default="."/>* /webapps/solr2*</Arg> <Arg>*/solr2*</Arg> <Set name="ConfigurationClasses"><Ref id="plusConfig"/></Set> <Set name="defaultsDescriptor"><SystemProperty name=" jetty.home" default="."/>/etc/webdefault.xml</Set> <New id="solr_home" class=" org.mortbay.jetty.plus.naming.EnvEntry"> <Arg>solr/home</Arg> <Arg type="java.lang.String"><SystemProperty name=" jetty.home" default="."/>override this value</Arg> </New> </New> </Arg> </Call> then, on the webapps/solr1/WEB-INF you need a jetty-env.xml like this: <?xml version="1.0"?> <!DOCTYPE Configure PUBLIC "-//Mort Bay Consulting//DTD Configure//EN" " http://jetty.mortbay.org/configure.dtd"> <Configure class="org.mortbay.jetty.webapp.WebAppContext"> <!-- Add an override for a global EnvEntry --> <New id="solr_home" class="org.mortbay.jetty.plus.naming.EnvEntry"> <Arg>solr/home</Arg> <Arg type="java.lang.String"><SystemProperty name="jetty.home" default="."/>/solr1</Arg> </New> </Configure> Hope it helps On 6/26/07, Otis Gospodnetic <otis_gospodnetic@...> wrote: > > Hm, that JNDI again... this makes it sound like SOLR-215 is completely > superfluous? > I have not configured Jetty this way yet, but I do see some docs on > http://wiki.apache.org/solr/SolrJetty . Interestingly, the configs look a > lot different than what's described on > http://docs.codehaus.org/display/JETTY/JNDI . I also remember Jetty Plus > from a while back, but now I cannot find any information about Jetty Plus > 6.*, only 5 - http://jetty.mortbay.org/jetty5/plus/index.html . > > Otis > > > > ----- Original Message ---- > From: Chris Hostetter <hossman_lucene@...> > To: solr-user@... > Sent: Tuesday, June 26, 2007 8:10:46 PM > Subject: Re: multiple indices > > > : I have multiple applications (blogs/forums/video/etc) - each of these > : is independent (no need to perform queries on multiple indices). > > : Would it be best to use multiple instances of SOLR/JVM - one for each > : index or use a solution where only one JVM instance is running (maybe > : solr-215?)? > > > you don't actaully need multiple JVM instances to run multiple Solr > instance ... you can configure your ServletContainer to run the solr.war > in multiple contexts each of which has a differnet solrconfig.xml and > schema.xml (using JNDI) ... that way you get most of hte benefits of > isolated instances but also can also take advantage of a single large heap > and common connection management. > > > > > -Hoss > > > > > |
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Re: multiple indices
by hossman_lucene
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: Hm, that JNDI again... this makes it sound like SOLR-215 is completely : superfluous? No ... i still haven't had a chance to review the patch, but Henri makes some great argmuments for the "WHY" of the patch in the issue description... >>> Multiple cores: >>> Deployment issues within some organizations where IT will resist >>> deploying multiple web applications. >>> Seamless schema update where you can create a new core and switch to >>> it without starting/stopping servers. >>> Embedding Solr in your own application (instead of 'raw' Lucene) and >>> functionally need to segregate schemas & collections. (there are some other arguments i'm not sure i buy into, but these seem very justified) -Hoss |
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