Solr 4 Study notes (part1)

Installation:
Jetty:
Modify solr.xml <?xml version=”1.0”?> <!DOCTYPEConfigure PUBLIC ” -//Jetty//Configurer//EN” http://www.eclipse.org/jetty/configure.dtd> <Configure class=”org.eclipse.jetty.webapp.WebAppContext”> <Set name=”contextPath”>/solr</Set> <Setname=”war”><SystemProperty name=”jetty.home”/>/webapps/solr.war</Set> <Setname=”defaultsDescriptor”><SystemProperty name=”jetty.home”/>/etc/webdefault.xml</Set> <Setname=”tempDirectory”><Property name=”jetty.home” default=”.”/>/temp</Set> </Configure>

Copy solr.xml to <jettyinstallation>/context

Copy jetty.xml, webdefault.xml, logging.properties from <solrdistribution>/etc to <jetty installation>/etc Copy schema.xml, solrconfig.xml, solr.xml etc to<solr.home> directory For multi-core configuration In solr.xml:<solr persistent=”true”> <cores adminPath=”/admin/cores” defaultCoreName=”collection1”> <core name=”collection1”instanceDir=”collection1”/></cores></solr>Copy schema.xml, solrconfig.xml to <solr.home>/<collectiondir>/conf Modify /etc/default/jetty file, add -Dsolr.solr.home=xxx Tomcat:
Change tomcat server.xml: connector’s url encoding toUTF-8<Connector port=”8080” protocol=”HTTP/1.1”connectionTimeout=”20000” redirectPort=”8443”URIEncoding=”UTF-8”/>
Create solr.xml in $TOMCAT_HOME/conf/Catalina/localhost<Context path=”/solr” docBase=”/usr/share/tomcat/webapps/solr.war”debug=”0” crossContext=”true”> <Environment name=”solr/home”type=”java.lang.String” value=”usr/share/solr” override=”true”/></Context>
Copy schema.xml, solrconfig.xml, solr.xml etc to<solr.home> directory For multi-core configuration In solr.xml:<solr persistent=”true”> <cores adminPath=”/admin/cores” defaultCoreName=”collection1”> <core name=”collection1”instanceDir=”collection1”/></cores></solr>Copy schema.xml, solrconfig.xml to <solr.home>/<collectiondir>/conf

Solr cloud requirement:
schema.xml
_version_ field<field name=”_version_” type=”long” indexed=”true”stored=”true” multiValued=”false”/>
solrconfig.xml

solr.ReplicationHandler<requestHandler name=”/replication” class=”solr.ReplicationHandler”/>
solr.RealTimeGetHandler<requestHandler name=”/get” class=”solr.RealTimeGetHandler”> <lstname=”defaults”> <str name=”omitHeader”>true</str></lst></requestHandler><updateLog> <strname=”dir”>${solr.data.dir:}</str></updateLog>
solr.xml<solr persistent=”true”><cores adminPath=”/admin/cores … host=”localhost”hostPort=”xxx” zkClientTimeout=”xxxx”></solr>
Directory Implementation:
<directoryFactory name=”DirectoryFactoryclass=”xxxxxxx”/>

Solr.StandardDirectoryFactory	Solr make decision on underlining implementation
Solr.SimpleFSDirectoryFactory	Does not scale well with high number of threads
Solr.NIOFSDirectoryFactory	Scale well with many threads, but does not work well on Windows
Solr.MMapDirectoryFactory	Good for 64 bit linux system if near realtime searching is not needed
Solr.NRTCachingDirectoryFactory	Good for near real-time indexing and searching
Solr.RAMDirectoryFactory	Entirely in memory and not support replication Used for auto-completion or unit testing