view init.d/kallithea-daemon-debian @ 5770:82f818616265

db: cache SCM instance short-term (tied to SQLAlchemy session lifetime) Repeatedly checking whether SCM instances are invalidated is slow, and we don't actually _want_ SCM instances to invalidate half-way through a request either. Therefore cache them in on the db.Repository object, the lifetime of which is directly tied to the lifetime of the SQLAlchemy session, the lifetime of which is tied directly to the individual HTTP request. This way, we only check for invalidation the first time the SCM instance is accessed in a request. This will improve performance in cases where we have (by definition) badly written code that retrieves repo objects several times.
author Søren Løvborg <sorenl@unity3d.com>
date Tue, 08 Mar 2016 12:28:06 +0100
parents 99ad9d0af1a3
children e285bb7abb28
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#!/bin/sh -e
########################################
#### THIS IS A DEBIAN INIT.D SCRIPT ####
########################################
 
### BEGIN INIT INFO
# Provides:          kallithea          
# Required-Start:    $all
# Required-Stop:     $all
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: starts instance of kallithea
# Description:       starts instance of kallithea using start-stop-daemon
### END INIT INFO
 
APP_NAME="kallithea"
APP_HOMEDIR="opt"
APP_PATH="/$APP_HOMEDIR/$APP_NAME"
 
CONF_NAME="production.ini"
 
PID_PATH="$APP_PATH/$APP_NAME.pid"
LOG_PATH="$APP_PATH/$APP_NAME.log"
 
PYTHON_PATH="/$APP_HOMEDIR/$APP_NAME-venv"
 
RUN_AS="root"
 
DAEMON="$PYTHON_PATH/bin/paster"
 
DAEMON_OPTS="serve --daemon \
 --user=$RUN_AS \
 --group=$RUN_AS \
 --pid-file=$PID_PATH \
 --log-file=$LOG_PATH  $APP_PATH/$CONF_NAME"
 
 
start() {
  echo "Starting $APP_NAME"
  PYTHON_EGG_CACHE="/tmp" start-stop-daemon -d $APP_PATH \
      --start --quiet \
      --pidfile $PID_PATH \
      --user $RUN_AS \
      --exec $DAEMON -- $DAEMON_OPTS
}
 
stop() {
  echo "Stopping $APP_NAME"
  start-stop-daemon -d $APP_PATH \
      --stop --quiet \
      --pidfile $PID_PATH || echo "$APP_NAME - Not running!"
 
  if [ -f $PID_PATH ]; then
    rm $PID_PATH
  fi
}
 
status() {
  echo -n "Checking status of $APP_NAME ... "
  pid=`cat $PID_PATH`
  status=`ps ax | grep $pid | grep -ve grep`
  if [ "$?" -eq 0 ]; then
    echo "running"
  else
    echo "NOT running"
  fi
}
 
case "$1" in
  status)
   status
    ;;
  start)
    start
    ;;
  stop)
    stop
    ;;
  restart)
    echo "Restarting $APP_NAME"
    ### stop ###
    stop
    wait
    ### start ###
    start
    ;;
  *)
    echo "Usage: $0 {start|stop|restart}"
    exit 1
esac