view contrib/init.d/d4e-river @ 5779:ebec12def170

Datacage: Add a pool of builders to make it multi threadable. XML DOM is not thread safe. Therefore the old implementation only allowed one thread to use the builder at a time. As the complexity of the configuration has increased over time this has become a bottleneck of the whole application because it took quiet some time to build a result. Furthermore the builder code path is visited very frequent. So many concurrent requests were piled up resulting in long waits for the users. To mitigate this problem a round robin pool of builders is used now. Each of the pooled builders has an independent copy of the XML template and can be run in parallel. The number of builders is determined by the system property 'flys.datacage.pool.size'. It defaults to 4.
author Sascha L. Teichmann <teichmann@intevation.de>
date Sun, 21 Apr 2013 12:48:09 +0200
parents dc0cc18e7944
children bc4e1bf26227
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#!/bin/bash
#
### BEGIN INIT INFO
# Provides: d4e-server
# Required-Start: $network $syslog $remote_fs
# Should-Start: $named $syslog $time
# Required-Stop: $network $syslog
# Should-Stop: $named $syslog $time
# Default-Start:  3 5
# Default-Stop:   0 1 2 6
# Short-Description: Dive4Elements server
# Description:    Start Dive4Elements server
### END INIT INFO

RUNAS=flys
DIR="/opt/flys/current/server"

CLASSPATH=
for l in `find "$DIR/bin/lib" -name \*.jar -print`; do
    CLASSPATH=$CLASSPATH:$l
done


LOGFILE=/var/log/d4e-river.log
PIDFILE=/var/run/d4e-river.pid
ARGS="-Xmx256m \
     -server \
     -Djava.awt.headless=true \
     -Dflys.datacage.recommendations.development=false \
     -Djava.io.tmpdir=\"$DIR/cache\" \
     -Dflys.backend.enablejmx=true \
     -Dflys.uesk.keep.artifactsdir=false \
     -Dwsplgen.bin.path=\"$DIR/bin/wsplgen.exe\" \
     -Dwsplgen.log.output=false \
     -Dartifact.database.dir=\"$DIR/conf\""
MAINCLASS=de.intevation.artifactdatabase.App

# For SELinux we need to use 'runuser' not 'su'
if [ -x "/sbin/runuser" ]; then
    SU="/sbin/runuser"
else
    SU="/bin/su"
fi

case "$1" in
  start)
    echo "Starting D4E-river server..."
    $SU - $RUNAS -c "/usr/bin/java -classpath $CLASSPATH $ARGS $MAINCLASS" &> $LOGFILE &
    PID=$!
    echo $PID > $PIDFILE
    ;;
  stop)
    echo "Stopping D4E-river server..."
    PID=`cat $PIDFILE`
    STOPRES=0
    while [ $STOPRES -le 0 ]
    do
      kill -15 $PID &> /dev/null
      STOPRES=$?
      sleep 1
    done
    echo "done."
    ;;
  restart)
    $0 stop && $0 start
    ;;
  *)
    echo "Usage: $0 [start|stop|restart]"
esac

http://dive4elements.wald.intevation.org