Another simple solution for your requirement is to use multicore. This way you will have only one Solr webapp loaded with as many indexes as you need.
See more at http://wiki.apache.org/solr/MultiCore 2009/2/25 Michael Della Bitta <mdellabi...@gmail.com> > Unfortunately, I think the way this works is the container creates a > Classloader for each context and loads the contents of the .war into > that, regardless of whether each context references the same .war > file. All those classes are stored in permanent generation space, and > I'm fairly sure if you restart a context individually with the manager > application, a new ClassLoader for the context is created and the > permanent generation space the old one was consuming is simply leaked. > > Something that is crazy enough to work might be to unpack the Solr > .war and move all the .jar files and class files that don't contain > servlet API classes to .jars in $TOMCAT_HOME/lib, and then repack the > .war without these files. These would then be loaded by the common > classloader once per container, instead of once per context. You can > read more about this classloader business here: > http://tomcat.apache.org/tomcat-6.0-doc/class-loader-howto.html (might > need a different URL depending on the version of Tomcat you're > running). > > Michael > > On Wed, Feb 25, 2009 at 11:42 AM, revas <revas...@gmail.com> wrote: > > thanks will try that .I also have the war file for each solr instance in > the > > home directory of the instance ,would that be the problem ? > > > > if i were to have common war file for n instances ,would there be any > issue? > > > > regards > > revas > > > > On 2/25/09, Michael Della Bitta <mdellabi...@gmail.com> wrote: > >> > >> It's possible I don't know enough about Solr's internals and there's a > >> better solution than this, and it's surprising me that you're running > >> out of PermGen space before you're running out of heap, but maybe > >> you've already increased the general heap size without tweaking > >> PermGen, and loading all the classes involved in loading 20 contexts > >> is putting you over. In any case, you might try adding the following > >> option to CATALINA_OPTS: -XX:MaxPermSize=256m. If you don't know where > >> to put something like that, you might try adding the following line to > >> $TOMCAT_HOME/bin/startup.sh: > >> > >> export CATALINA_OPTS="-XX:MaxPermSize=256m ${CATALINA_OPTS}" > >> > >> If that value (256) doesn't alleviate the problem, you might try > increasing > >> it. > >> > >> Hope that helps, > >> > >> Michael Della Bitta > >> > >> > >> On Wed, Feb 25, 2009 at 3:08 AM, revas <revas...@gmail.com> wrote: > >> > Hi > >> > > >> > I am sure this question has been repeated many times over and there > has > >> been > >> > several generic answers ,but i am looking for specific answers. > >> > > >> > I have a single server whose configuration i give below,this being the > >> only > >> > server we have at present ,the requirement is everytime we create a > new > >> > website ,we create two instances for the same one for content search > and > >> one > >> > for product search ,both have faceting requirements. > >> > > >> > there are about 25 fields for product schema and abt 20 for content > >> schema > >> > ,we do not store the content in the server ,the content is only > indexed. > >> > > >> > Assuming that we currently have 10 websites ,which means we have 20 > >> webapps > >> > running on this server each having about 1000 documents and size of > the > >> > index is approximately 50mb currently .The index size of each is > expected > >> to > >> > grow continlously as more products are added. > >> > > >> > > >> > We recenlty got the followng error on creation of a new webapp ? > >> > SEVERE: Caught exception (java.lang.OutOfMemoryError: PermGen > space) > >> > executing > org.apache.tomcat.util.net.leaderfollowerworkerthr...@1c2534f, > >> > terminating thread > >> > Feb 24, 2009 6:22:16 AM > >> > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable run > >> > SEVERE: Caught exception (java.lang.OutOfMemoryError: PermGen space) > >> > executing > org.apache.tomcat.util.net.leaderfollowerworkerthr...@1c2534f, > >> > terminating thread > >> > Sent at 12:32 PM on Wednesday > >> > > >> > What would this mean?Given the above,How many such webapps can we > have > >> > on this server? > >> > > >> > *Server config* > >> > > >> > OS: Red Hat Enterprise Linux ES 4 - 64 Bit > >> > # Processor: Dual AMD Opteron Dual Core 270 2.0 GHz > >> > # 4GB DDR RAM > >> > # Hard Drive: 73GB SCSI > >> > # Hard Drive: 73GB SCSI > >> > > >> > thanks > >> > > >> > > > -- Alexander Ramos Jardim
