/usr/sbin/groonga-httpd-restart is in groonga-httpd 6.0.1-1ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 | #!/bin/sh
# -*- indent-tabs-mode: nil; sh-indentation: 4 -*-
#
# Copyright(C) 2012-2013 Brazil
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
prefix=/usr
SERVICE_NAME=groonga-httpd
GROONGA_HTTPD=${SERVICE_NAME}
PID_FILE=/var/run/groonga/${GROONGA_HTTPD}.pid
TIMEOUT=3
# Source configuration.
if [ -f /etc/default/${SERVICE_NAME} ]; then
. /etc/default/${SERVICE_NAME}
elif [ -f /etc/sysconfig/${SERVICE_NAME} ]; then
. /etc/sysconfig/${SERVICE_NAME}
fi
OLD_PID_FILE=${PID_FILE}.oldbin
wait_until () {
for n in $(seq ${TIMEOUT}); do
if "$@"; then
return 0
fi
sleep 1
done
return 1
}
wait_while () {
for n in $(seq ${TIMEOUT}); do
if ! "$@"; then
return 0
fi
sleep 1
done
return 1
}
start_master () {
local pid=$1
kill -USR2 ${pid}
}
switch_worker () {
local pid=$1
kill -WINCH ${pid}
}
stop_master () {
local pid=$1
kill -QUIT ${pid}
}
if [ ! -f "${PID_FILE}" ]; then
echo "PID file isn't found. groonga-httpd may not be running: <${PID_FILE}>"
exit 1
fi
OLD_PID=$(cat ${PID_FILE})
start_master ${OLD_PID}
if ! wait_until [ -f ${OLD_PID_FILE} ]; then
echo "Failed to create old PID file: <${PID_FILE}>"
exit 1
fi
if ! wait_until [ -f ${PID_FILE} ]; then
echo "Failed to start new groonga-httpd master."
exit 1
fi
NEW_PID=$(cat ${PID_FILE})
OLD_WORKER_PROCESSES=$(pgrep -P ${OLD_PID} | grep -v ${NEW_PID})
switch_worker ${OLD_PID}
for pid in ${OLD_WORKER_PROCESSES}; do
wait_while ps --pid=${pid} > /dev/null
done
OLD_WORKER_PROCESSES=$(pgrep -P ${OLD_PID} | grep -v ${NEW_PID})
if [ -n "${OLD_WORKER_PROCESSES}" ]; then
echo "Failed to stop old groonga-httpd worker process."
stop_master ${NEW_PID}
echo "Rollback to old groonga-httpd master."
exit 2
fi
stop_master ${OLD_PID}
exit $?
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