195ff00f65
This commit allows puppet-cloud to handle Galera cluster in RHEL. The same logic applied for Debian is applied for RHEL. close #151
201 lines
6.0 KiB
Bash
Executable File
201 lines
6.0 KiB
Bash
Executable File
#!/bin/bash
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#
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### BEGIN INIT INFO
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# Provides: mysql-bootstrap
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# Required-Start: $remote_fs $syslog
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# Required-Stop: $remote_fs $syslog
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# Should-Start: $network $named $time
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# Should-Stop: $network $named $time
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Short-Description: Start and stop the mysql database server daemon
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# Description: Controls the main MariaDB database server daemon "mysqld"
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# and its wrapper script "mysqld_safe".
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### END INIT INFO
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#
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MYSQLD_STARTUP_TIMEOUT=${MYSQLD_STARTUP_TIMEOUT:-60}
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[ -e /etc/mysql/my.cnf ] && \
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MYSQLD_DATA_DIR=$(awk -F= '/^datadir/{print $2}' /etc/mysql/my.cnf | sed -e 's/^ *//')
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MYSQLD_DATA_DIR=${MYSQLD_DATA_DIR:-<%= scope.lookupvar('::mysql::datadir') %>}
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set -e
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set -u
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${DEBIAN_SCRIPT_DEBUG:+ set -v -x}
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test -x /usr/sbin/mysqld || exit 0
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. /lib/lsb/init-functions
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SELF=$(cd $(dirname $0); pwd -P)/$(basename $0)
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CONF=/etc/mysql/my.cnf
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MYADMIN="/usr/bin/mysqladmin --defaults-file=/etc/mysql/debian.cnf"
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# priority can be overriden and "-s" adds output to stderr
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ERR_LOGGER="logger -p daemon.err -t /etc/init.d/mysql -i"
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# Safeguard (relative paths, core dumps..)
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cd /
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umask 077
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# mysqladmin likes to read /root/.my.cnf. This is usually not what I want
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# as many admins e.g. only store a password without a username there and
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# so break my scripts.
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export HOME=/etc/mysql/
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## Fetch a particular option from mysql's invocation.
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#
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# Usage: void mysqld_get_param option
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mysqld_get_param() {
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/usr/sbin/mysqld --print-defaults \
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| tr " " "\n" \
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| grep -- "--$1" \
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| tail -n 1 \
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| cut -d= -f2
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}
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## Do some sanity checks before even trying to start mysqld.
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sanity_checks() {
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# check for config file
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if [ ! -r /etc/mysql/my.cnf ]; then
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log_warning_msg "$0: WARNING: /etc/mysql/my.cnf cannot be read. See README.Debian.gz"
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echo "WARNING: /etc/mysql/my.cnf cannot be read. See README.Debian.gz" | $ERR_LOGGER
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fi
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# check for diskspace shortage
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datadir=`mysqld_get_param datadir`
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if LC_ALL=C BLOCKSIZE= df --portability $datadir/. | tail -n 1 | awk '{ exit ($4>4096) }'; then
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log_failure_msg "$0: ERROR: The partition with $datadir is too full!"
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echo "ERROR: The partition with $datadir is too full!" | $ERR_LOGGER
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exit 1
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fi
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}
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## Checks if there is a server running and if so if it is accessible.
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#
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# check_alive insists on a pingable server
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# check_dead also fails if there is a lost mysqld in the process list
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#
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# Usage: boolean mysqld_status [check_alive|check_dead] [warn|nowarn]
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mysqld_status () {
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ping_output=`$MYADMIN ping 2>&1`; ping_alive=$(( ! $? ))
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ps_alive=0
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pidfile=`mysqld_get_param pid-file`
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if [ -f "$pidfile" ] && ps `cat $pidfile` >/dev/null 2>&1; then ps_alive=1; fi
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if [ "$1" = "check_alive" -a $ping_alive = 1 ] ||
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[ "$1" = "check_dead" -a $ping_alive = 0 -a $ps_alive = 0 ]; then
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return 0 # EXIT_SUCCESS
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else
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if [ "$2" = "warn" ]; then
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echo -e "$ps_alive processes alive and '$MYADMIN ping' resulted in\n$ping_output\n" | $ERR_LOGGER -p daemon.debug
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fi
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return 1 # EXIT_FAILURE
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fi
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}
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#
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# main()
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#
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case "${1:-''}" in
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'start')
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sanity_checks;
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# Start daemon
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log_daemon_msg "Starting MariaDB database server" "mysqld"
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if mysqld_status check_alive nowarn; then
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log_progress_msg "already running"
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log_end_msg 0
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else
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# Could be removed during boot
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test -e /var/run/mysqld || install -m 755 -o mysql -g root -d /var/run/mysqld
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# Start MariaDB! in a Galera setup we want to use
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# new-cluster only when the galera cluster hasn't been
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# bootstraped
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if [ -e ${MYSQLD_DATA_DIR}/grastate.dat ]; then
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# normal boot
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/usr/bin/mysqld_safe "${@:2}" > /dev/null 2>&1 &
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else
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# bootstrap boot
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log_progress_msg " (Galera bootstrap) "
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/usr/bin/mysqld_safe "${@:2}" --wsrep-new-cluster > /dev/null 2>&1 &
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fi
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# 6s was reported in #352070 to be too few when using ndbcluster
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for i in $(seq 1 "${MYSQLD_STARTUP_TIMEOUT:-30}"); do
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sleep 1
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if mysqld_status check_alive nowarn ; then break; fi
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log_progress_msg "."
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done
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if mysqld_status check_alive warn; then
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log_end_msg 0
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# Now start mysqlcheck or whatever the admin wants.
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output=$(/etc/mysql/debian-start)
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[ -n "$output" ] && log_action_msg "$output"
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else
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log_end_msg 1
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log_failure_msg "Please take a look at the syslog"
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fi
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fi
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;;
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'stop')
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# * As a passwordless mysqladmin (e.g. via ~/.my.cnf) must be possible
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# at least for cron, we can rely on it here, too. (although we have
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# to specify it explicit as e.g. sudo environments points to the normal
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# users home and not /root)
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log_daemon_msg "Stopping MariaDB database server" "mysqld"
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if ! mysqld_status check_dead nowarn; then
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set +e
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shutdown_out=`$MYADMIN shutdown 2>&1`; r=$?
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set -e
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if [ "$r" -ne 0 ]; then
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log_end_msg 1
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[ "$VERBOSE" != "no" ] && log_failure_msg "Error: $shutdown_out"
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log_daemon_msg "Killing MariaDB database server by signal" "mysqld"
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killall -15 mysqld
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server_down=
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for i in `seq 1 600`; do
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sleep 1
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if mysqld_status check_dead nowarn; then server_down=1; break; fi
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done
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if test -z "$server_down"; then killall -9 mysqld; fi
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fi
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fi
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if ! mysqld_status check_dead warn; then
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log_end_msg 1
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log_failure_msg "Please stop MariaDB manually and read /usr/share/doc/mariadb-server-5.5/README.Debian.gz!"
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exit -1
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else
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log_end_msg 0
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fi
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;;
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'restart')
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set +e; $SELF stop; set -e
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$SELF start
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;;
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'reload'|'force-reload')
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log_daemon_msg "Reloading MariaDB database server" "mysqld"
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$MYADMIN reload
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log_end_msg 0
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;;
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'status')
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if mysqld_status check_alive nowarn; then
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log_action_msg "$($MYADMIN version)"
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else
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log_action_msg "MariaDB is stopped."
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exit 3
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fi
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;;
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*)
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echo "Usage: $SELF start|stop|restart|reload|force-reload|status"
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exit 1
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;;
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esac
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