mirror of
https://github.com/MariaDB/server.git
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151 lines
4.4 KiB
Bash
151 lines
4.4 KiB
Bash
#!/bin/sh
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# Copyright Abandoned 1996 TCX DataKonsult AB & Monty Program KB & Detron HB
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# This file is public domain and comes with NO WARRANTY of any kind
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#
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# scripts to start the MySQL demon and restart it if it dies unexpectedly
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#
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# This should be executed in the MySQL base directory if you are using a
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# binary installation that has other paths than you are using.
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#
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# mysql.server works by first doing a cd to the base directory and from there
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# executing mysqld_safe
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# Check if we are starting this relative (for the binary release)
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if test -f ./data/mysql/db.frm -a -f ./share/mysql/english/errmsg.sys -a \
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-x ./bin/mysqld
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then
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MY_BASEDIR_VERSION=`pwd` # Where bin, share and data is
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DATADIR=$MY_BASEDIR_VERSION/data # Where the databases are
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ledir=$MY_BASEDIR_VERSION/bin # Where mysqld are
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# Check if this is a 'moved install directory'
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elif test -f ./var/mysql/db.frm -a -f ./share/mysql/english/errmsg.sys -a \
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-x ./libexec/mysqld
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then
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MY_BASEDIR_VERSION=`pwd` # Where libexec, share and var is
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DATADIR=$MY_BASEDIR_VERSION/var # Where the databases are
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ledir=$MY_BASEDIR_VERSION/libexec # Where mysqld are
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else
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MY_BASEDIR_VERSION=/usr/local/mysql
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DATADIR=/usr/local/mysql/var
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ledir=/usr/local/mysql/libexec
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fi
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hostname=`@HOSTNAME@`
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pidfile=$DATADIR/$hostname.pid
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log=$DATADIR/$hostname.log
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err=$DATADIR/$hostname.err
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lockfile=$DATADIR/$hostname.lock
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#
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# If there exists an old pid file, check if the demon is already running
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# Note: The switches to 'ps' may depend on your operating system
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if test -f $pidfile
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then
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PID=`cat $pidfile`
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if /bin/kill -0 $PID
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then
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if /bin/ps -p $PID | grep mysqld > /dev/null
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then # The pid contains a mysqld process
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echo "A mysqld process already exists"
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echo "A mysqld process already exists at " `date` >> $log
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exit 1;
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fi
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fi
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rm -f $pidfile
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if test -f $pidfile
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then
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echo "Fatal error: Can't remove the pid file: $pidfile"
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echo "Fatal error: Can't remove the pid file: $pidfile at " `date` >> $log
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echo "Please remove it manually and start $0 again"
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echo "mysqld demon not started"
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exit 1;
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fi
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fi
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echo "Starting mysqld demon with databases from $DATADIR"
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#Default communication ports
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#MYSQL_TCP_PORT=3306
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if test -z "$MYSQL_UNIX_PORT"
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then
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MYSQL_UNIX_PORT="/tmp/mysql.sock"
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export MYSQL_UNIX_PORT
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fi
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#export MYSQL_TCP_PORT
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# Does this work on all systems?
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#if type ulimit | grep "shell builtin" > /dev/null
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#then
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# ulimit -n 256 > /dev/null 2>&1 # Fix for BSD and FreeBSD systems
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#fi
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echo "mysqld started on " `date` >> $log
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bin/zap -f $lockfile < /dev/null > /dev/null 2>&1
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rm -f $lockfile
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$MY_BASEDIR_VERSION/bin/watchdog_mysqld $lockfile $pidfile $MY_BASEDIR_VERSION/bin $DATADIR 3 10 >> $err 2>&1 &
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restart_pid=$!
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while true
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do
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rm -f $MYSQL_UNIX_PORT $pidfile # Some extra safety
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lockfile -1 -r10 $lockfile >/dev/null 2>&1
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if test "$#" -eq 0
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then
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nohup $ledir/mysqld --basedir=$MY_BASEDIR_VERSION --datadir=$DATADIR \
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--skip-locking >> $err 2>&1 &
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else
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nohup $ledir/mysqld --basedir=$MY_BASEDIR_VERSION --datadir=$DATADIR \
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--skip-locking "$@" >> $err 2>&1 &
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fi
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pid=$!
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rm -f $lockfile
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wait $pid;
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lockfile -1 -r10 $lockfile >/dev/null 2>&1
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rm -f $lockfile
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if test ! -f $pidfile # This is removed if normal shutdown
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then
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break;
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fi
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if true
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then
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# Test if one proces was hanging.
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# This is only a fix for Linux (running as base 3 mysqld processes)
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# but should work for the rest of the servers.
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# The only thing is ps x => redhat 5 gives warnings when using ps -x.
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# kill -9 is used or the proces won't react on the kill.
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numofproces=`ps x | grep -v "grep" | grep -c $ledir/mysqld`
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echo -e "\nNumber of processes running now: $numofproces" | tee -a $log
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I=1
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while test "$I" -le "$numofproces"
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do
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PROC=`ps x | grep $ledir/mysqld | grep -v "grep" | tail -1`
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for T in $PROC
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do
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break
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done
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# echo "TEST $I - $T **"
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if kill -9 $T
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then
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echo "mysqld proces hanging, pid $T - killed" | tee -a $log
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else
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break
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fi
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I=`expr $I + 1`
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done
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fi
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echo "mysqld restarted" | tee -a $log
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# Check all tables and repair any wrong tables.
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$MY_BASEDIR_VERSION/bin/isamchk -sf $DATADIR/*/*.ISM >> $err 2>&1
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done
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if test $restart_pid -gt 0
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then
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kill $restart_pid > /dev/null 2>&1
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sleep 1;
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kill -9 $restart_pid > /dev/null 2>&1
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fi
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echo -n "mysqld ended on " `date` >> $log
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echo "mysqld demon ended"
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