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ops/cookbooks/vendor/mysql/templates/default/sysvinit/mysqld.erb
vendored
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279
ops/cookbooks/vendor/mysql/templates/default/sysvinit/mysqld.erb
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#!/bin/bash
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#
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### BEGIN INIT INFO
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# Provides: <%= @mysql_name %>
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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 $time
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# Should-Stop: $network $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 MySQL 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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# set -e
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# set -u
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### Exit code reference
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# http://fedoraproject.org/wiki/Packaging:SysVInitScript
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# http://refspecs.linuxbase.org/LSB_3.1.0/LSB-Core-generic/LSB-Core-generic/iniscrptact.html
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# Source functions
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<% if node['platform_family'] == 'rhel' %>
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# Source RHEL function library.
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. /etc/rc.d/init.d/functions
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<% end %>
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####
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# Variables
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####
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STARTTIMEOUT=900
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STOPTIMEOUT=900
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PID_DELAY=60
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####
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# Helper functions
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###
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# Boolean function to see if MYSQL_PID exists and is a number
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pid_exists() {
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PID_EXISTS=1
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if [ -f <%= @pid_file %> ]; then
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MYSQLD_PID=`cat <%= @pid_file %> 2>/dev/null`
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if [ -n "$MYSQLD_PID" ] && [ -d "/proc/$MYSQLD_PID" ] ; then
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PID_EXISTS=0
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fi
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fi
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return $PID_EXISTS
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}
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# Use mysqladmin to ping the service as an invalid user over a socket
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running() {
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RUNNING=1
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RESPONSE=`<%= @mysqladmin_bin %> --defaults-file=<%= @defaults_file %> --user=UNKNOWN_MYSQL_USER ping 2>&1`
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local mret=$?
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if pid_exists \
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&& [ $mret -eq 0 ] \
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|| [ `echo $RESPONSE | grep -q "Access denied for user"` ]; then
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RUNNING=0
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fi
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return $RUNNING
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}
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writable_error_log() {
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WRITABLE_ERROR_LOG=1
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touch "<%= @error_log %>" 2>/dev/null
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touchret=$?
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if [ $touchret -eq 0 ]; then
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chown <%= @config.run_user %>:<%= @config.run_group %> <%= @error_log %>
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return 0
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else
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return $WRITABLE_ERROR_LOG
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fi
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}
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print_start_success() {
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<% if node['platform_family'] == 'rhel' %>
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action $"Starting <%= @mysql_name %>: " /bin/true
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<% else %>
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echo "Staring MySQL instance <%= @mysql_name %>"
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<% end %>
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return 0;
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}
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print_start_failure() {
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<% if node['platform_family'] == 'rhel' %>
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action $"Starting <%= @mysql_name %>: " /bin/false
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<% else %>
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echo "Could not start MySQL instance <%= @mysql_name %>"
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<% end %>
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return 0;
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}
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print_reload_success() {
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<% if node['platform_family'] == 'rhel' %>
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action $"Reloading <%= @mysql_name %>" /bin/true
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<% else %>
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echo "Reload success for <%= @mysql_name %>"
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<% end %>
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return 0;
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}
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print_reload_failure() {
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<% if node['platform_family'] == 'rhel' %>
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action $"Reloading <%= @mysql_name %>" /bin/false
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<% else %>
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echo "Reload failed for <%= @mysql_name %>"
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<% end %>
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return 0;
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}
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print_stop_success() {
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<% if node['platform_family'] == 'rhel' %>
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action $"Stopping <%= @mysql_name %>: " /bin/true
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<% else %>
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echo "Stopping MySQL instance <%= @mysql_name %>"
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<% end %>
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return 0;
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}
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print_stop_failure() {
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<% if node['platform_family'] == 'rhel' %>
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action $"Stopping <%= @mysql_name %>: " /bin/false
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<% else %>
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echo "Could not stop MySQL instance <%= @mysql_name %>"
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<% end %>
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return 0;
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}
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start_command() {
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# Attempt to start <%= @mysql_name %>
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echo "Starting MySQL instance <%= @mysql_name %>"
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local scl_name="<%= @scl_name %>"
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if [ -z $scl_name ]; then
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<%= @mysqld_safe_bin %> \
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--defaults-file=<%= @defaults_file %> \
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>/dev/null 2>&1 &
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local pid=$!
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else
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scl enable $scl_name "<%= @mysqld_safe_bin %> \
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--defaults-file=<%= @defaults_file %> \
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>/dev/null 2>&1 &"
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local pid=$!
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fi
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return $pid
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}
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####
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# Init script actions
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###
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# Start <%= @mysql_name %>
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start() {
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# exit 0 if already running.
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if running; then
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print_start_success
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return 0;
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fi
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# exit 4 if we can't write to error_log
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if ! writable_error_log; then
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print_start_failure
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return 4
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fi
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# run program
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start_command;
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start_pid=$?
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# Timeout loop
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local TIMEOUT=$STARTTIMEOUT
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while [ $TIMEOUT -gt 0 ]; do
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if running; then
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break
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fi
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let CURRENT_DELAY=${STARTTIMEOUT}-${TIMEOUT}
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if [ $CURRENT_DELAY -gt $PID_DELAY ] \
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&& ! pid_exists; then
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break
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fi
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sleep 1
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let TIMEOUT=${TIMEOUT}-1
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done
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if running; then
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# successbaby.gif
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print_start_success
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return 0
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elif ! pid_exists; then
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# Handle startup failure
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print_start_failure
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return 3
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elif [ $TIMEOUT -eq 0 ]; then
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# Handle timeout
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print_start_failure
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# clean up
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kill $start_pid 2>/dev/null
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return 1
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fi
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}
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# Reload <%= @mysql_name %>
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reload() {
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<%= @mysqladmin_bin %> reload
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local ret=$?
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if [ $ret -eq 0 ]; then
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print_reload_success;
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else
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print_reload_failure;
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fi
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return $ret
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}
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# Status of <%= @mysql_name %>
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status() {
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if running; then
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echo "<%= @mysql_name %> is running"
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return 0
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else
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echo "<%= @mysql_name %> is not running"
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return 1
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fi
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}
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# Stop <%= @mysql_name %>
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stop() {
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if running; then
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echo "Stopping MySQL instance <%= @mysql_name %>"
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if [ -f <%= @pid_file %> ]; then
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/bin/kill `cat <%= @pid_file %> 2>/dev/null`
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kstat=$?
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fi
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# Timeout loop
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local TIMEOUT=$STARTTIMEOUT
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while [ $TIMEOUT -gt 0 ]; do
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if [ -e <%= @pid_file %> ]; then
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sleep 1
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fi
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let TIMEOUT=${TIMEOUT}-1
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done
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return $kstat
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else
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echo "MySQL instance <%= @mysql_name %> Stopped."
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return 0
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fi
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}
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# main()
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case "$1" in
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start)
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start
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;;
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stop)
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stop
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;;
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status)
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status
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;;
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restart)
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stop ; start
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;;
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reload)
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reload
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;;
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*)
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echo $"Usage: $0 {start|stop|status|restart|reload}"
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exit 2
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esac
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exit $?
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