[Solr Wiki] Update of "ShawnHeisey" by ShawnHeisey

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The "ShawnHeisey" page has been changed by ShawnHeisey:
https://wiki.apache.org/solr/ShawnHeisey?action=diff&rev1=9&rev2=10

Comment:
added init script.

                  -XX:+UseG1GC -XX:+UseStringCache -XX:-UseSplitVerifier
                  -XX:MaxGCPauseMillis=50
  }}}
+ 
+ == Init script ==
+ 
+ This is a redhat-specific init script for a custom installation created from the Solr example:
+ 
+ {{{
+ #!/bin/bash
+ #
+ # chkconfig: - 80 45
+ # description: Starts and stops Solr
+ 
+ # Source redhat init.d function library.
+ . /etc/rc.d/init.d/functions
+ 
+ # options that are commonly overridden
+ SOLRROOT=/opt/solr4
+ SOLRHOME=/index/solr4
+ LISTENPORT=8983
+ JMINMEM=256M
+ JMAXMEM=2048M
+ JBIN=/usr/bin/java
+ FUSER=/sbin/fuser
+ STOPKEY=mystopkey
+ STOPPORT=8078
+ JMXPORT=8686
+ STARTUSER=solr
+ 
+ # less commonly overridden options
+ PROC_CHECK_ARG="start\.jar"
+ LOG_OPTS="-Dlog4j.configuration=file:etc/log4j.properties"
+ JVM_OPTS="-XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:NewRatio=3 -XX:MaxTenuringThreshold=8 -XX:+CMSParallelRemarkEnabled -XX:+ParallelRefProcEnabled -XX:+UseLargePages -XX:+AggressiveOpts"
+ GCLOG_OPTS="-verbose:gc -Xloggc:logs/gc.log -XX:+PrintGCDateStamps -XX:+PrintGCDetails"
+ JMX_OPTS="-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=${JMXPORT} -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false"
+ SYSCONFIG=/etc/sysconfig/solr4
+ 
+ # Source sysconfig for this app. This is used to override options.
+ if [ -f ${SYSCONFIG} ];
+ then
+   . ${SYSCONFIG}
+ fi
+ 
+ # Build required env variables.
+ STARTARGS="-Xms${JMINMEM} -Xmx${JMAXMEM} ${LOG_OPTS} ${JVM_OPTS} ${GCLOG_OPTS} ${JMX_OPTS} -Dsolr.solr.home=${SOLRHOME} -Djetty.port=${LISTENPORT} -DSTOP.PORT=${STOPPORT} -DSTOP.KEY=${STOPKEY}"
+ STOPARGS="-DSTOP.PORT=${STOPPORT} -DSTOP.KEY=${STOPKEY}"
+ PIDFILE=${SOLRROOT}/run/jetty.pid
+ 
+ # Grab UID of start user.  Abort loudly if it doesn't exist.
+ STARTUID=`id -u ${STARTUSER} 2> /dev/null`
+ RET=$?
+ if [ ${RET} -ne 0 ];
+ then
+ 	echo "User ${STARTUSER} does not exist."
+ 	exit 1
+ fi
+ 
+ # If we're root, restart as unpriveleged user. Abort if anyone else.
+ if [ ${UID} -eq 0 ];
+ then
+   exec su ${STARTUSER} -c "$0 $*"
+ elif [ ${UID} -eq ${STARTUID} ];
+ then
+   echo "do nothing" > /dev/null 2> /dev/null
+ else
+   echo "This needs to be run as root or ${STARTUSER}. "
+   exit 1
+ fi
+ 
+ runexit() {
+   echo "Already running!"
+   exit 1
+ }
+ 
+ start() {
+   echo -n "Starting Solr... "
+   if [ "x${PID}" == "x" ];
+   then
+     PID=0
+   fi
+   # Let's check to see if the PID is up and is actually Solr
+   checkproccmdline > /dev/null 2> /dev/null
+   if [ ${RET} -eq 0 ];
+   then
+     # If PID is up and is Solr, fail.
+     runexit
+   fi
+   # Pre-emptive extreme prejudice strike on anything using Solr's port
+   killbyport
+   sleep 1
+   # Start 'er up.
+   cd ${SOLRROOT}
+   ${JBIN} ${STARTARGS} -jar ${SOLRROOT}/start.jar >logs/out 2>logs/err &
+   PID=$!
+   echo ${PID} > ${PIDFILE}
+   disown ${PID}
+   echo "done"
+ }
+ 
+ checkproccmdline() {
+   grep ${PROC_CHECK_ARG} /proc/${PID}/cmdline > /dev/null 2> /dev/null
+   RET=$?
+ }
+ 
+ termbypid() {
+   checkpid ${PID}
+   RET=$?
+   if [ ${RET} -eq 0 ];
+   then
+     checkproccmdline
+     if [ ${RET} -eq 0 ];
+     then
+       kill $PID
+     else
+       echo
+       echo "pid ${PID} is not Solr!"
+       echo > ${PIDFILE}
+     fi
+   fi
+ }
+ 
+ killbypid() {
+   checkpid ${PID}
+   RET=$?
+   if [ ${RET} -eq 0 ];
+   then
+     checkproccmdline
+     if [ ${RET} -eq 0 ];
+     then
+       kill -9 $PID
+     else
+       echo
+       echo "pid ${PID} is not Solr!"
+       echo > ${PIDFILE}
+     fi
+   fi
+ }
+ 
+ termbyport() {
+   ${FUSER} -sk -n tcp ${LISTENPORT}
+ }
+ 
+ killbyport() {
+   ${FUSER} -sk9 -n tcp ${LISTENPORT}
+ }
+ 
+ checkpidsleep() {
+   checkpid ${PID} && sleep 1
+   checkpid ${PID} && sleep 1
+   checkpid ${PID} && sleep 1
+   checkpid ${PID} && sleep 1
+   checkpid ${PID} && sleep 1
+   checkpid ${PID} && sleep 1
+   checkpid ${PID} && sleep 1
+   checkpid ${PID} && sleep 1
+   checkpid ${PID} && sleep 1
+   checkpid ${PID} && sleep 1
+ }
+ 
+ stop() {
+   echo -n "Stopping Solr... "
+   # check to see if PID is empty.
+   if [ "x${PID}" == "x" ];
+   then
+     # term then kill anything using Solr's port, assume success.
+     termbyport
+     sleep 5
+     killbyport
+   else
+     # Try Jetty's stop mechanism.
+     ${JBIN} $STOPARGS -jar /${SOLRROOT}/start.jar --stop \
+       > /dev/null 2> /dev/null
+     checkpidsleep
+     # Controlled death by PID.
+     termbypid
+     checkpidsleep
+     # Controlled death by Solr port.
+     termbyport
+     checkpidsleep
+     # Sudden death by PID and Solr port.
+     killbyport
+     killbypid
+     checkpidsleep
+     # report failure if none of the above worked.
+     if checkpid $PID 2>&1;
+     then
+       echo "failed!"
+       exit 1
+     fi
+   fi
+   echo "done"
+ }
+ 
+ UP=`cat /proc/uptime | cut -f1 -d\ | cut -f1 -d.`
+ # If the machine has been up less than 3 minutes, wipe the pidfile.
+ if [ ${UP} -lt 180 ];
+ then
+   echo > ${PIDFILE}
+ fi
+ 
+ PID=`cat ${PIDFILE}`
+ 
+ case "$1" in
+   start)
+     start
+     ;;
+   stop)
+     stop
+     ;;
+   restart)
+     stop
+     start
+     ;;
+   *)
+     echo $"Usage: $0 {start|stop|restart}"
+     exit 1
+ esac
+ 
+ exit $?
+ }}}
+ 
+ For my Solr install on CentOS 6, I use /opt/solr4 as my installation path, and /index/solr4 as my solr home.  The /index directory is a dedicated filesystem, /opt is part of the root filesystem.
+ 
+ From the example directory, I copied cloud-scripts, contexts, etc, lib, webapps, and start.jar over to /opt/solr4.  My stuff was created before 4.3.0, so the resources directory didn't exist.  I was already using log4j with a custom Solr build, and I put my log4j.properties file in etc instead.  I created a logs directory and a run directory in /opt/solr4.
+ 
+ My directory structure in the solr home, (/index/solr4) is more complex than most.  What a new user really needs to know is that solr.xml goes here and dictates the rest of the structure.  I have a symlink at /index/solr4/lib, pointing to /opt/solr4/solrlib - so that jars placed in `${solr.solr.home}/lib` are actually located in the program directory, not the data directory.  That makes for a much cleaner version control scenario - both directories are git repositories cloned from our internal git server.
+ 
+ Unlike the example configs, my solrconfig.xml files do not have <lib> directives for loading jars.  That gets automatically handled by the jars living in that symlinked lib directory.  See [[https://issues.apache.org/jira/browse/SOLR-4852|SOLR-4852]] for caveats regarding central lib directories.
+ 
+ If you want to run SolrCloud, you would need to install zookeeper separately and put your zkHost parameter in solr.xml.  Due to a bug, putting zkHost in solr.xml doesn't work properly until 4.4.0.
+ 
  ----
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