mirror of
https://github.com/MariaDB/server.git
synced 2025-11-03 14:33:32 +03:00
582 lines
15 KiB
Bash
582 lines
15 KiB
Bash
#!/bin/sh
|
|
# Copyright Abandoned 1996 TCX DataKonsult AB & Monty Program KB & Detron HB
|
|
# This file is public domain and comes with NO WARRANTY of any kind
|
|
#
|
|
# Script to start the MySQL daemon and restart it if it dies unexpectedly
|
|
#
|
|
# This should be executed in the MySQL base directory if you are using a
|
|
# binary installation that is not installed in its compile-time default
|
|
# location
|
|
#
|
|
# mysql.server works by first doing a cd to the base directory and from there
|
|
# executing mysqld_safe
|
|
|
|
KILL_MYSQLD=1;
|
|
MYSQLD=
|
|
niceness=0
|
|
# Initial logging status: error log is not open, and not using syslog
|
|
logging=init
|
|
want_syslog=0
|
|
syslog_tag=
|
|
user=@MYSQLD_USER@
|
|
pid_file=
|
|
err_log=
|
|
|
|
syslog_tag_mysqld=mysqld
|
|
syslog_tag_mysqld_safe=mysqld_safe
|
|
|
|
trap '' 1 2 3 15 # we shouldn't let anyone kill us
|
|
|
|
umask 007
|
|
|
|
defaults=
|
|
case "$1" in
|
|
--no-defaults|--defaults-file=*|--defaults-extra-file=*)
|
|
defaults="$1"; shift
|
|
;;
|
|
esac
|
|
|
|
usage () {
|
|
cat <<EOF
|
|
Usage: $0 [OPTIONS]
|
|
--no-defaults Don't read the system defaults file
|
|
--defaults-file=FILE Use the specified defaults file
|
|
--defaults-extra-file=FILE Also use defaults from the specified file
|
|
--ledir=DIRECTORY Look for mysqld in the specified directory
|
|
--open-files-limit=LIMIT Limit the number of open files
|
|
--core-file-size=LIMIT Limit core files to the specified size
|
|
--timezone=TZ Set the system timezone
|
|
--mysqld=FILE Use the specified file as mysqld
|
|
--mysqld-version=VERSION Use "mysqld-VERSION" as mysqld
|
|
--nice=NICE Set the scheduling priority of mysqld
|
|
--skip-kill-mysqld Don't try to kill stray mysqld processes
|
|
--syslog Log messages to syslog with 'logger'
|
|
--skip-syslog Log messages to error log (default)
|
|
--syslog-tag=TAG Pass -t "mysqld-TAG" to 'logger'
|
|
|
|
All other options are passed to the mysqld program.
|
|
|
|
EOF
|
|
exit 1
|
|
}
|
|
|
|
my_which ()
|
|
{
|
|
save_ifs="${IFS-UNSET}"
|
|
IFS=:
|
|
for file
|
|
do
|
|
for dir in $PATH
|
|
do
|
|
if [ -f "$dir/$file" ]
|
|
then
|
|
echo "$dir/$file"
|
|
continue 2
|
|
fi
|
|
done
|
|
return 1 # Failure, didn't find file in path
|
|
done
|
|
if [ "$save_ifs" = UNSET ]
|
|
then
|
|
unset IFS
|
|
else
|
|
IFS="$save_ifs"
|
|
fi
|
|
return 0 # Success
|
|
}
|
|
|
|
log_generic () {
|
|
priority="$1"
|
|
shift
|
|
|
|
msg="`date +'%y%m%d %H:%M:%S'` mysqld_safe $*"
|
|
echo "$msg"
|
|
case $logging in
|
|
init) ;; # Just echo the message, don't save it anywhere
|
|
file) echo "$msg" >> "$err_log" ;;
|
|
syslog) logger -t "$syslog_tag_mysqld_safe" -p "$priority" "$*" ;;
|
|
*)
|
|
echo "Internal program error (non-fatal):" \
|
|
" unknown logging method '$logging'" >&2
|
|
;;
|
|
esac
|
|
}
|
|
|
|
log_error () {
|
|
log_generic daemon.error "$@" >&2
|
|
}
|
|
|
|
log_notice () {
|
|
log_generic daemon.notice "$@"
|
|
}
|
|
|
|
eval_log_error () {
|
|
cmd="$1"
|
|
case $logging in
|
|
file) cmd="$cmd >> "`shell_quote_string "$err_log"`" 2>&1" ;;
|
|
syslog)
|
|
# mysqld often prefixes its messages with a timestamp, which is
|
|
# redundant when logging to syslog (which adds its own timestamp)
|
|
# However, we don't strip the timestamp with sed here, because
|
|
# sed buffers output (only GNU sed supports a -u (unbuffered) option)
|
|
# which means that messages may not get sent to syslog until the
|
|
# mysqld process quits.
|
|
cmd="$cmd 2>&1 | logger -t '$syslog_tag_mysqld' -p daemon.error"
|
|
;;
|
|
*)
|
|
echo "Internal program error (non-fatal):" \
|
|
" unknown logging method '$logging'" >&2
|
|
;;
|
|
esac
|
|
|
|
#echo "Running mysqld: [$cmd]"
|
|
eval "$cmd"
|
|
}
|
|
|
|
shell_quote_string() {
|
|
# This sed command makes sure that any special chars are quoted,
|
|
# so the arg gets passed exactly to the server.
|
|
echo "$1" | sed -e 's,\([^a-zA-Z0-9/_.=-]\),\\\1,g'
|
|
}
|
|
|
|
parse_arguments() {
|
|
# We only need to pass arguments through to the server if we don't
|
|
# handle them here. So, we collect unrecognized options (passed on
|
|
# the command line) into the args variable.
|
|
pick_args=
|
|
if test "$1" = PICK-ARGS-FROM-ARGV
|
|
then
|
|
pick_args=1
|
|
shift
|
|
fi
|
|
|
|
for arg do
|
|
val=`echo "$arg" | sed -e "s;--[^=]*=;;"`
|
|
case "$arg" in
|
|
# these get passed explicitly to mysqld
|
|
--basedir=*) MY_BASEDIR_VERSION="$val" ;;
|
|
--datadir=*) DATADIR="$val" ;;
|
|
--pid-file=*) pid_file="$val" ;;
|
|
--user=*) user="$val"; SET_USER=1 ;;
|
|
|
|
# these might have been set in a [mysqld_safe] section of my.cnf
|
|
# they are added to mysqld command line to override settings from my.cnf
|
|
--log-error=*) err_log="$val" ;;
|
|
--port=*) mysql_tcp_port="$val" ;;
|
|
--socket=*) mysql_unix_port="$val" ;;
|
|
|
|
# mysqld_safe-specific options - must be set in my.cnf ([mysqld_safe])!
|
|
--core-file-size=*) core_file_size="$val" ;;
|
|
--ledir=*) ledir="$val" ;;
|
|
--mysqld=*) MYSQLD="$val" ;;
|
|
--mysqld-version=*)
|
|
if test -n "$val"
|
|
then
|
|
MYSQLD="mysqld-$val"
|
|
else
|
|
MYSQLD="mysqld"
|
|
fi
|
|
;;
|
|
--nice=*) niceness="$val" ;;
|
|
--open-files-limit=*) open_files="$val" ;;
|
|
--skip-kill-mysqld*) KILL_MYSQLD=0 ;;
|
|
--syslog) want_syslog=1 ;;
|
|
--skip-syslog) want_syslog=0 ;;
|
|
--syslog-tag=*) syslog_tag="$val" ;;
|
|
--timezone=*) TZ="$val"; export TZ; ;;
|
|
|
|
--help) usage ;;
|
|
|
|
*)
|
|
if test -n "$pick_args"
|
|
then
|
|
append_arg_to_args "$arg"
|
|
fi
|
|
;;
|
|
esac
|
|
done
|
|
}
|
|
|
|
|
|
#
|
|
# First, try to find BASEDIR and ledir (where mysqld is)
|
|
#
|
|
|
|
MY_PWD=`pwd`
|
|
# Check for the directories we would expect from a binary release install
|
|
if test -f ./share/mysql/english/errmsg.sys -a -x ./bin/mysqld
|
|
then
|
|
MY_BASEDIR_VERSION=$MY_PWD # Where bin, share and data are
|
|
ledir=$MY_BASEDIR_VERSION/bin # Where mysqld is
|
|
# Check for the directories we would expect from a source install
|
|
elif test -f ./share/mysql/english/errmsg.sys -a -x ./libexec/mysqld
|
|
then
|
|
MY_BASEDIR_VERSION=$MY_PWD # Where libexec, share and var are
|
|
ledir=$MY_BASEDIR_VERSION/libexec # Where mysqld is
|
|
# Since we didn't find anything, used the compiled-in defaults
|
|
else
|
|
MY_BASEDIR_VERSION=@prefix@
|
|
ledir=@libexecdir@
|
|
fi
|
|
|
|
#
|
|
# Second, try to find the data directory
|
|
#
|
|
|
|
# Try where the binary installs put it
|
|
if test -d $MY_BASEDIR_VERSION/data/mysql
|
|
then
|
|
DATADIR=$MY_BASEDIR_VERSION/data
|
|
if test -z "$defaults" -a -r "$DATADIR/my.cnf"
|
|
then
|
|
defaults="--defaults-extra-file=$DATADIR/my.cnf"
|
|
fi
|
|
# Next try where the source installs put it
|
|
elif test -d $MY_BASEDIR_VERSION/var/mysql
|
|
then
|
|
DATADIR=$MY_BASEDIR_VERSION/var
|
|
# Or just give up and use our compiled-in default
|
|
else
|
|
DATADIR=@localstatedir@
|
|
fi
|
|
|
|
if test -z "$MYSQL_HOME"
|
|
then
|
|
if test -r "$MY_BASEDIR_VERSION/my.cnf" && test -r "$DATADIR/my.cnf"
|
|
then
|
|
log_error "WARNING: Found two instances of my.cnf -
|
|
$MY_BASEDIR_VERSION/my.cnf and
|
|
$DATADIR/my.cnf
|
|
IGNORING $DATADIR/my.cnf"
|
|
|
|
MYSQL_HOME=$MY_BASEDIR_VERSION
|
|
elif test -r "$DATADIR/my.cnf"
|
|
then
|
|
log_error "WARNING: Found $DATADIR/my.cnf
|
|
The data directory is a deprecated location for my.cnf, please move it to
|
|
$MY_BASEDIR_VERSION/my.cnf"
|
|
MYSQL_HOME=$DATADIR
|
|
else
|
|
MYSQL_HOME=$MY_BASEDIR_VERSION
|
|
fi
|
|
fi
|
|
export MYSQL_HOME
|
|
|
|
|
|
# Get first arguments from the my.cnf file, groups [mysqld] and [mysqld_safe]
|
|
# and then merge with the command line arguments
|
|
if test -x ./bin/my_print_defaults
|
|
then
|
|
print_defaults="./bin/my_print_defaults"
|
|
elif test -x @bindir@/my_print_defaults
|
|
then
|
|
print_defaults="@bindir@/my_print_defaults"
|
|
elif test -x @bindir@/mysql_print_defaults
|
|
then
|
|
print_defaults="@bindir@/mysql_print_defaults"
|
|
else
|
|
print_defaults="my_print_defaults"
|
|
fi
|
|
|
|
append_arg_to_args () {
|
|
args="$args "`shell_quote_string "$1"`
|
|
}
|
|
|
|
args=
|
|
|
|
SET_USER=2
|
|
parse_arguments `$print_defaults $defaults --loose-verbose mysqld server`
|
|
if test $SET_USER -eq 2
|
|
then
|
|
SET_USER=0
|
|
fi
|
|
|
|
parse_arguments `$print_defaults $defaults --loose-verbose mysqld_safe safe_mysqld`
|
|
parse_arguments PICK-ARGS-FROM-ARGV "$@"
|
|
|
|
# Determine what logging facility to use
|
|
|
|
# Ensure that 'logger' exists, if it's requested
|
|
if [ $want_syslog -eq 1 ]
|
|
then
|
|
my_which logger > /dev/null 2>&1
|
|
if [ $? -ne 0 ]
|
|
then
|
|
log_error "--syslog requested, but no 'logger' program found. Please ensure that 'logger' is in your PATH, or do not specify the --syslog option to mysqld_safe."
|
|
exit 1
|
|
fi
|
|
fi
|
|
|
|
if [ -n "$err_log" -o $want_syslog -eq 0 ]
|
|
then
|
|
if [ -n "$err_log" ]
|
|
then
|
|
# mysqld adds ".err" if there is no extension on the --log-error
|
|
# argument; must match that here, or mysqld_safe will write to a
|
|
# different log file than mysqld
|
|
|
|
# mysqld does not add ".err" to "--log-error=foo."; it considers a
|
|
# trailing "." as an extension
|
|
if expr "$err_log" : '.*\.[^/]*$' > /dev/null
|
|
then
|
|
:
|
|
else
|
|
err_log="$err_log".err
|
|
fi
|
|
|
|
case "$err_log" in
|
|
/* ) ;;
|
|
* ) err_log="$DATADIR/$err_log" ;;
|
|
esac
|
|
else
|
|
err_log=$DATADIR/`@HOSTNAME@`.err
|
|
fi
|
|
|
|
append_arg_to_args "--log-error=$err_log"
|
|
|
|
if [ $want_syslog -eq 1 ]
|
|
then
|
|
# User explicitly asked for syslog, so warn that it isn't used
|
|
log_error "Can't log to error log and syslog at the same time. Remove all --log-error configuration options for --syslog to take effect."
|
|
fi
|
|
|
|
# Log to err_log file
|
|
log_notice "Logging to '$err_log'."
|
|
logging=file
|
|
else
|
|
if [ -n "$syslog_tag" ]
|
|
then
|
|
# Sanitize the syslog tag
|
|
syslog_tag=`echo "$syslog_tag" | sed -e 's/[^a-zA-Z0-9_-]/_/g'`
|
|
syslog_tag_mysqld_safe="${syslog_tag_mysqld_safe}-$syslog_tag"
|
|
syslog_tag_mysqld="${syslog_tag_mysqld}-$syslog_tag"
|
|
fi
|
|
log_notice "Logging to syslog."
|
|
logging=syslog
|
|
fi
|
|
|
|
USER_OPTION=""
|
|
if test -w / -o "$USER" = "root"
|
|
then
|
|
if test "$user" != "root" -o $SET_USER = 1
|
|
then
|
|
USER_OPTION="--user=$user"
|
|
fi
|
|
# Change the err log to the right user, if it is in use
|
|
if [ $want_syslog -eq 0 ]; then
|
|
touch $err_log
|
|
chown $user $err_log
|
|
fi
|
|
if test -n "$open_files"
|
|
then
|
|
ulimit -n $open_files
|
|
append_arg_to_args "--open-files-limit=$open_files"
|
|
fi
|
|
fi
|
|
|
|
safe_mysql_unix_port=${mysql_unix_port:-${MYSQL_UNIX_PORT:-@MYSQL_UNIX_ADDR@}}
|
|
# Make sure that directory for $safe_mysql_unix_port exists
|
|
mysql_unix_port_dir=`dirname $safe_mysql_unix_port`
|
|
if [ ! -d $mysql_unix_port_dir ]
|
|
then
|
|
mkdir $mysql_unix_port_dir
|
|
chown $user $mysql_unix_port_dir
|
|
chmod 755 $mysql_unix_port_dir
|
|
fi
|
|
|
|
# If the user doesn't specify a binary, we assume name "mysqld"
|
|
if test -z "$MYSQLD"
|
|
then
|
|
MYSQLD=mysqld
|
|
fi
|
|
|
|
if test ! -x $ledir/$MYSQLD
|
|
then
|
|
log_error "The file $ledir/$MYSQLD
|
|
does not exist or is not executable. Please cd to the mysql installation
|
|
directory and restart this script from there as follows:
|
|
./bin/mysqld_safe&
|
|
See http://dev.mysql.com/doc/mysql/en/mysqld-safe.html for more information"
|
|
exit 1
|
|
fi
|
|
|
|
if test -z "$pid_file"
|
|
then
|
|
pid_file=$DATADIR/`@HOSTNAME@`.pid
|
|
else
|
|
case "$pid_file" in
|
|
/* ) ;;
|
|
* ) pid_file="$DATADIR/$pid_file" ;;
|
|
esac
|
|
fi
|
|
append_arg_to_args "--pid-file=$pid_file"
|
|
|
|
if test -n "$mysql_unix_port"
|
|
then
|
|
append_arg_to_args "--socket=$mysql_unix_port"
|
|
fi
|
|
if test -n "$mysql_tcp_port"
|
|
then
|
|
append_arg_to_args "--port=$mysql_tcp_port"
|
|
fi
|
|
|
|
if test $niceness -eq 0
|
|
then
|
|
NOHUP_NICENESS="nohup"
|
|
else
|
|
NOHUP_NICENESS="nohup nice -$niceness"
|
|
fi
|
|
|
|
# Using nice with no args to get the niceness level is GNU-specific.
|
|
# This check could be extended for other operating systems (e.g.,
|
|
# BSD could use "nohup sh -c 'ps -o nice -p $$' | tail -1").
|
|
# But, it also seems that GNU nohup is the only one which messes
|
|
# with the priority, so this is okay.
|
|
if nohup nice > /dev/null 2>&1
|
|
then
|
|
normal_niceness=`nice`
|
|
nohup_niceness=`nohup nice 2>/dev/null`
|
|
|
|
numeric_nice_values=1
|
|
for val in $normal_niceness $nohup_niceness
|
|
do
|
|
case "$val" in
|
|
-[0-9] | -[0-9][0-9] | -[0-9][0-9][0-9] | \
|
|
[0-9] | [0-9][0-9] | [0-9][0-9][0-9] )
|
|
;;
|
|
* )
|
|
numeric_nice_values=0 ;;
|
|
esac
|
|
done
|
|
|
|
if test $numeric_nice_values -eq 1
|
|
then
|
|
nice_value_diff=`expr $nohup_niceness - $normal_niceness`
|
|
if test $? -eq 0 && test $nice_value_diff -gt 0 && \
|
|
nice --$nice_value_diff echo testing > /dev/null 2>&1
|
|
then
|
|
# nohup increases the priority (bad), and we are permitted
|
|
# to lower the priority with respect to the value the user
|
|
# might have been given
|
|
niceness=`expr $niceness - $nice_value_diff`
|
|
NOHUP_NICENESS="nice -$niceness nohup"
|
|
fi
|
|
fi
|
|
else
|
|
if nohup echo testing > /dev/null 2>&1
|
|
then
|
|
:
|
|
else
|
|
# nohup doesn't work on this system
|
|
NOHUP_NICENESS=""
|
|
fi
|
|
fi
|
|
|
|
# Try to set the core file size (even if we aren't root) because many systems
|
|
# don't specify a hard limit on core file size.
|
|
if test -n "$core_file_size"
|
|
then
|
|
ulimit -c $core_file_size
|
|
fi
|
|
|
|
#
|
|
# If there exists an old pid file, check if the daemon is already running
|
|
# Note: The switches to 'ps' may depend on your operating system
|
|
if test -f $pid_file
|
|
then
|
|
PID=`cat $pid_file`
|
|
if @CHECK_PID@
|
|
then
|
|
if @FIND_PROC@
|
|
then # The pid contains a mysqld process
|
|
log_error "A mysqld process already exists"
|
|
exit 1
|
|
fi
|
|
fi
|
|
rm -f $pid_file
|
|
if test -f $pid_file
|
|
then
|
|
log_error "Fatal error: Can't remove the pid file:
|
|
$pid_file
|
|
Please remove it manually and start $0 again;
|
|
mysqld daemon not started"
|
|
exit 1
|
|
fi
|
|
fi
|
|
|
|
#
|
|
# Uncomment the following lines if you want all tables to be automatically
|
|
# checked and repaired during startup. You should add sensible key_buffer
|
|
# and sort_buffer values to my.cnf to improve check performance or require
|
|
# less disk space.
|
|
# Alternatively, you can start mysqld with the "myisam-recover" option. See
|
|
# the manual for details.
|
|
#
|
|
# echo "Checking tables in $DATADIR"
|
|
# $MY_BASEDIR_VERSION/bin/myisamchk --silent --force --fast --medium-check $DATADIR/*/*.MYI
|
|
# $MY_BASEDIR_VERSION/bin/isamchk --silent --force $DATADIR/*/*.ISM
|
|
|
|
# Does this work on all systems?
|
|
#if type ulimit | grep "shell builtin" > /dev/null
|
|
#then
|
|
# ulimit -n 256 > /dev/null 2>&1 # Fix for BSD and FreeBSD systems
|
|
#fi
|
|
|
|
cmd="$NOHUP_NICENESS"
|
|
|
|
for i in "$ledir/$MYSQLD" "$defaults" "--basedir=$MY_BASEDIR_VERSION" \
|
|
"--datadir=$DATADIR" "$USER_OPTION"
|
|
do
|
|
cmd="$cmd "`shell_quote_string "$i"`
|
|
done
|
|
cmd="$cmd $args"
|
|
# Avoid 'nohup: ignoring input' warning
|
|
test -n "$NOHUP_NICENESS" && cmd="$cmd < /dev/null"
|
|
|
|
log_notice "Starting $MYSQLD daemon with databases from $DATADIR"
|
|
while true
|
|
do
|
|
rm -f $safe_mysql_unix_port $pid_file # Some extra safety
|
|
|
|
eval_log_error "$cmd"
|
|
|
|
if test ! -f $pid_file # This is removed if normal shutdown
|
|
then
|
|
break
|
|
fi
|
|
|
|
if @TARGET_LINUX@ && test $KILL_MYSQLD -eq 1
|
|
then
|
|
# Test if one process was hanging.
|
|
# This is only a fix for Linux (running as base 3 mysqld processes)
|
|
# but should work for the rest of the servers.
|
|
# The only thing is ps x => redhat 5 gives warnings when using ps -x.
|
|
# kill -9 is used or the process won't react on the kill.
|
|
numofproces=`ps xaww | grep -v "grep" | grep "$ledir/$MYSQLD\>" | grep -c "pid-file=$pid_file"`
|
|
|
|
log_notice "Number of processes running now: $numofproces"
|
|
I=1
|
|
while test "$I" -le "$numofproces"
|
|
do
|
|
PROC=`ps xaww | grep "$ledir/$MYSQLD\>" | grep -v "grep" | grep "pid-file=$pid_file" | sed -n '$p'`
|
|
|
|
for T in $PROC
|
|
do
|
|
break
|
|
done
|
|
# echo "TEST $I - $T **"
|
|
if kill -9 $T
|
|
then
|
|
log_error "$MYSQLD process hanging, pid $T - killed"
|
|
else
|
|
break
|
|
fi
|
|
I=`expr $I + 1`
|
|
done
|
|
fi
|
|
log_notice "mysqld restarted"
|
|
done
|
|
|
|
log_notice "mysqld from pid file $pid_file ended"
|
|
|