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1040 lines
29 KiB
1040 lines
29 KiB
5 months ago
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#!@SHELL_PATH@
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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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# Script to start the MySQL daemon 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 is not installed in its compile-time default
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# location
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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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# Initialize script globals
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KILL_MYSQLD=1;
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MYSQLD=
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niceness=0
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mysqld_ld_preload=
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mysqld_ld_library_path=
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# Initial logging status: error log is not open, and not using syslog
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logging=init
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want_syslog=0
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syslog_tag=
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user='@MYSQLD_USER@'
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pid_file=
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pid_file_append=
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err_log=
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err_log_append=
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timestamp_format=UTC
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syslog_tag_mysqld=mysqld
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syslog_tag_mysqld_safe=mysqld_safe
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syslog_facility=daemon
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trap '' 1 2 3 15 # we shouldn't let anyone kill us
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trap '' 13 # not even SIGPIPE
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# MySQL-specific environment variable. First off, it's not really a umask,
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# it's the desired mode. Second, it follows umask(2), not umask(3) in that
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# octal needs to be explicit. Our shell might be a proper sh without printf,
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# multiple-base arithmetic, and binary arithmetic, so this will get ugly.
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# We reject decimal values to keep things at least half-sane.
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umask 007 # fallback
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UMASK="${UMASK-0640}"
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fmode=`echo "$UMASK" | sed -e 's/[^0246]//g'`
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octalp=`echo "$fmode"|cut -c1`
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fmlen=`echo "$fmode"|wc -c|sed -e 's/ //g'`
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if [ "x$octalp" != "x0" -o "x$UMASK" != "x$fmode" -o "x$fmlen" != "x5" ]
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then
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fmode=0640
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echo "UMASK must be a 3-digit mode with an additional leading 0 to indicate octal." >&2
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echo "The first digit will be corrected to 6, the others may be 0, 2, 4, or 6." >&2
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fi
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fmode=`echo "$fmode"|cut -c3-4`
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fmode="6$fmode"
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if [ "x$UMASK" != "x0$fmode" ]
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then
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echo "UMASK corrected from $UMASK to 0$fmode ..."
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fi
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defaults=
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case "$1" in
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--no-defaults|--defaults-file=*|--defaults-extra-file=*)
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defaults="$1"; shift
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;;
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esac
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usage () {
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cat <<EOF
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Usage: $0 [OPTIONS]
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The following options may be given as the first argument:
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--no-defaults Don't read the system defaults file
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--defaults-file=FILE Use the specified defaults file
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--defaults-extra-file=FILE Also use defaults from the specified file
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Other options:
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--ledir=DIRECTORY Look for mysqld in the specified directory
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--open-files-limit=LIMIT Limit the number of open files
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--core-file-size=LIMIT Limit core files to the specified size
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--timezone=TZ Set the system timezone
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--malloc-lib=LIB Preload shared library LIB if available
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--mysqld=FILE Use the specified file as mysqld
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--mysqld-version=VERSION Use "mysqld-VERSION" as mysqld
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--nice=NICE Set the scheduling priority of mysqld
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--plugin-dir=DIR Plugins are under DIR or DIR/VERSION, if
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VERSION is given
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--skip-kill-mysqld Don't try to kill stray mysqld processes
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--syslog Log messages to syslog with 'logger'
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--skip-syslog Log messages to error log (default)
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--syslog-tag=TAG Pass -t "mysqld-TAG" to 'logger'
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--mysqld-safe-log- TYPE must be one of UTC (ISO 8601 UTC),
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timestamps=TYPE system (ISO 8601 local time), hyphen
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(hyphenated date a la mysqld 5.6), legacy
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(legacy non-ISO 8601 mysqld_safe timestamps)
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All other options are passed to the mysqld program.
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EOF
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exit 1
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}
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my_which ()
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{
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save_ifs="${IFS-UNSET}"
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IFS=:
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ret=0
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for file
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do
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for dir in $PATH
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do
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if [ -f "$dir/$file" ]
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then
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echo "$dir/$file"
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continue 2
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fi
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done
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ret=1 #signal an error
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break
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done
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if [ "$save_ifs" = UNSET ]
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then
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unset IFS
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else
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IFS="$save_ifs"
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fi
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return $ret # Success
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}
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log_generic () {
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priority="$1"
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shift
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msg="`eval $DATE` mysqld_safe $*"
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echo "$msg"
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case $logging in
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init) ;; # Just echo the message, don't save it anywhere
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file)
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if [ -w / -o "$USER" = "root" ]; then
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true
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else
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echo "$msg" >> "$err_log"
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fi
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;;
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syslog) logger -t "$syslog_tag_mysqld_safe" -p "$priority" "$*" ;;
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both)
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if [ -w / -o "$USER" = "root" ]; then
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true
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else
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echo "$msg" >> "$err_log"
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fi
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logger -t "$syslog_tag_mysqld_safe" -p "$priority" "$*"
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;;
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*)
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echo "Internal program error (non-fatal):" \
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" unknown logging method '$logging'" >&2
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;;
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esac
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}
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log_error () {
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log_generic ${syslog_facility}.error "$@" >&2
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}
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log_notice () {
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log_generic ${syslog_facility}.notice "$@"
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}
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eval_log_error () {
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cmd="$1"
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case $logging in
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file)
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if [ -w / -o "$USER" = "root" ]; then
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cmd="$cmd > /dev/null 2>&1"
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else
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cmd="$cmd >> "`shell_quote_string "$err_log"`" 2>&1"
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fi
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;;
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syslog)
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cmd="$cmd --log-syslog=1 --log-syslog-facility=$syslog_facility '--log-syslog-tag=$syslog_tag' > /dev/null 2>&1"
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;;
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both)
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if [ -w / -o "$USER" = "root" ]; then
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cmd="$cmd --log-syslog=1 --log-syslog-facility=$syslog_facility '--log-syslog-tag=$syslog_tag' > /dev/null 2>&1"
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else
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cmd="$cmd --log-syslog=1 --log-syslog-facility=$syslog_facility '--log-syslog-tag=$syslog_tag' >> "`shell_quote_string "$err_log"`" 2>&1"
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fi
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;;
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*)
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echo "Internal program error (non-fatal):" \
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" unknown logging method '$logging'" >&2
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;;
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esac
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#echo "Running mysqld: [$cmd]"
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cmd="env MYSQLD_PARENT_PID=$$ $cmd"
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eval "$cmd"
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}
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shell_quote_string() {
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# This sed command makes sure that any special chars are quoted,
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# so the arg gets passed exactly to the server.
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echo "$1" | sed -e 's,\([^a-zA-Z0-9/_.=-]\),\\\1,g'
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}
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parse_arguments() {
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# We only need to pass arguments through to the server if we don't
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# handle them here. So, we collect unrecognized options (passed on
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# the command line) into the args variable.
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pick_args=
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if test "$1" = PICK-ARGS-FROM-ARGV
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then
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pick_args=1
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shift
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fi
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for arg do
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# the parameter after "=", or the whole $arg if no match
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val=`echo "$arg" | sed -e 's;^--[^=]*=;;'`
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# what's before "=", or the whole $arg if no match
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optname=`echo "$arg" | sed -e 's/^\(--[^=]*\)=.*$/\1/'`
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# replace "_" by "-" ; mysqld_safe must accept "_" like mysqld does.
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optname_subst=`echo "$optname" | sed 's/_/-/g'`
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arg=`echo $arg | sed "s/^$optname/$optname_subst/"`
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case "$arg" in
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# these get passed explicitly to mysqld
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--basedir=*) MY_BASEDIR_VERSION="$val" ;;
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--datadir=*)
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case $val in
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/) DATADIR=$val ;;
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*) DATADIR="`echo $val | sed 's;/*$;;'`" ;;
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esac
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;;
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--pid-file=*) pid_file="$val" ;;
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--plugin-dir=*) PLUGIN_DIR="$val" ;;
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--user=*) user="$val"; SET_USER=1 ;;
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||
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# these might have been set in a [mysqld_safe] section of my.cnf
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# they are added to mysqld command line to override settings from my.cnf
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--log-error=*) err_log="$val" ;;
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--port=*) mysql_tcp_port="$val" ;;
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--socket=*) mysql_unix_port="$val" ;;
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# mysqld_safe-specific options - must be set in my.cnf ([mysqld_safe])!
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--core-file-size=*) core_file_size="$val" ;;
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--ledir=*)
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if [ -z "$pick_args" ]; then
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log_error "--ledir option can only be used as command line option, found in config file"
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exit 1
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||
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fi
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ledir="$val"
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||
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;;
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--malloc-lib=*) set_malloc_lib "$val" ;;
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--mysqld=*)
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if [ -z "$pick_args" ]; then
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log_error "--mysqld option can only be used as command line option, found in config file"
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||
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exit 1
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||
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fi
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MYSQLD="$val" ;;
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--mysqld-version=*)
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if [ -z "$pick_args" ]; then
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log_error "--mysqld-version option can only be used as command line option, found in config file"
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exit 1
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fi
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if test -n "$val"
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||
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then
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||
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MYSQLD="mysqld-$val"
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||
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PLUGIN_VARIANT="/$val"
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||
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else
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MYSQLD="mysqld"
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||
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fi
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||
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;;
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||
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--nice=*) niceness="$val" ;;
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||
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--open-files-limit=*) open_files="$val" ;;
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||
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--open_files_limit=*) open_files="$val" ;;
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||
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--skip-kill-mysqld*) KILL_MYSQLD=0 ;;
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||
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--mysqld-safe-log-timestamps=*) timestamp_format="$val" ;;
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||
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--syslog) want_syslog=1 ;;
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||
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--skip-syslog) want_syslog=0 ;;
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||
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--syslog-tag=*) syslog_tag="$val" ;;
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||
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--timezone=*) TZ="$val"; export TZ; ;;
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||
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||
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--help) usage ;;
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||
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||
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*)
|
||
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|
if test -n "$pick_args"
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||
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then
|
||
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append_arg_to_args "$arg"
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||
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|
fi
|
||
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;;
|
||
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|
esac
|
||
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|
done
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
# Add a single shared library to the list of libraries which will be added to
|
||
|
|
# LD_PRELOAD for mysqld
|
||
|
|
#
|
||
|
|
# Since LD_PRELOAD is a space-separated value (for historical reasons), if a
|
||
|
|
# shared lib's path contains spaces, that path will be prepended to
|
||
|
|
# LD_LIBRARY_PATH and stripped from the lib value.
|
||
|
|
add_mysqld_ld_preload() {
|
||
|
|
lib_to_add="$1"
|
||
|
|
log_notice "Adding '$lib_to_add' to LD_PRELOAD for mysqld"
|
||
|
|
|
||
|
|
case "$lib_to_add" in
|
||
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*' '*)
|
||
|
|
# Must strip path from lib, and add it to LD_LIBRARY_PATH
|
||
|
|
lib_file=`basename "$lib_to_add"`
|
||
|
|
case "$lib_file" in
|
||
|
|
*' '*)
|
||
|
|
# The lib file itself has a space in its name, and can't
|
||
|
|
# be used in LD_PRELOAD
|
||
|
|
log_error "library name '$lib_to_add' contains spaces and can not be used with LD_PRELOAD"
|
||
|
|
exit 1
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
lib_path=`dirname "$lib_to_add"`
|
||
|
|
lib_to_add="$lib_file"
|
||
|
|
[ -n "$mysqld_ld_library_path" ] && mysqld_ld_library_path="$mysqld_ld_library_path:"
|
||
|
|
mysqld_ld_library_path="$mysqld_ld_library_path$lib_path"
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
|
||
|
|
# LD_PRELOAD is a space-separated
|
||
|
|
[ -n "$mysqld_ld_preload" ] && mysqld_ld_preload="$mysqld_ld_preload "
|
||
|
|
mysqld_ld_preload="${mysqld_ld_preload}$lib_to_add"
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
# Returns LD_PRELOAD (and LD_LIBRARY_PATH, if needed) text, quoted to be
|
||
|
|
# suitable for use in the eval that calls mysqld.
|
||
|
|
#
|
||
|
|
# All values in mysqld_ld_preload are prepended to LD_PRELOAD.
|
||
|
|
mysqld_ld_preload_text() {
|
||
|
|
text=
|
||
|
|
|
||
|
|
if [ -n "$mysqld_ld_preload" ]; then
|
||
|
|
new_text="$mysqld_ld_preload"
|
||
|
|
[ -n "$LD_PRELOAD" ] && new_text="$new_text $LD_PRELOAD"
|
||
|
|
text="${text}LD_PRELOAD="`shell_quote_string "$new_text"`' '
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ -n "$mysqld_ld_library_path" ]; then
|
||
|
|
new_text="$mysqld_ld_library_path"
|
||
|
|
[ -n "$LD_LIBRARY_PATH" ] && new_text="$new_text:$LD_LIBRARY_PATH"
|
||
|
|
text="${text}LD_LIBRARY_PATH="`shell_quote_string "$new_text"`' '
|
||
|
|
fi
|
||
|
|
|
||
|
|
echo "$text"
|
||
|
|
}
|
||
|
|
|
||
|
|
# set_malloc_lib LIB
|
||
|
|
# - If LIB is empty, do nothing and return
|
||
|
|
# - If LIB is 'tcmalloc', look for tcmalloc shared library in $malloc_dirs.
|
||
|
|
# tcmalloc is part of the Google perftools project.
|
||
|
|
# - If LIB is an absolute path, assume it is a malloc shared library
|
||
|
|
#
|
||
|
|
# Put LIB in mysqld_ld_preload, which will be added to LD_PRELOAD when
|
||
|
|
# running mysqld. See ld.so for details.
|
||
|
|
set_malloc_lib() {
|
||
|
|
# This list is kept intentionally simple.
|
||
|
|
malloc_dirs="/usr/lib /usr/lib64 /usr/lib/i386-linux-gnu /usr/lib/x86_64-linux-gnu"
|
||
|
|
malloc_lib="$1"
|
||
|
|
|
||
|
|
if [ "$malloc_lib" = tcmalloc ]; then
|
||
|
|
malloc_lib=
|
||
|
|
for libdir in `echo $malloc_dirs`; do
|
||
|
|
for flavor in _minimal '' _and_profiler _debug; do
|
||
|
|
tmp="$libdir/libtcmalloc$flavor.so"
|
||
|
|
#log_notice "DEBUG: Checking for malloc lib '$tmp'"
|
||
|
|
[ -r "$tmp" ] || continue
|
||
|
|
malloc_lib="$tmp"
|
||
|
|
break 2
|
||
|
|
done
|
||
|
|
done
|
||
|
|
|
||
|
|
if [ -z "$malloc_lib" ]; then
|
||
|
|
log_error "no shared library for --malloc-lib=tcmalloc found in $malloc_dirs"
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Allow --malloc-lib='' to override other settings
|
||
|
|
[ -z "$malloc_lib" ] && return
|
||
|
|
|
||
|
|
case "$malloc_lib" in
|
||
|
|
/*)
|
||
|
|
if [ ! -r "$malloc_lib" ]; then
|
||
|
|
log_error "--malloc-lib can not be read and will not be used"
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Restrict to a the list in $malloc_dirs above
|
||
|
|
case "`dirname "$malloc_lib"`" in
|
||
|
|
/usr/lib) ;;
|
||
|
|
/usr/lib64) ;;
|
||
|
|
/usr/lib/i386-linux-gnu) ;;
|
||
|
|
/usr/lib/x86_64-linux-gnu) ;;
|
||
|
|
*)
|
||
|
|
log_error "--malloc-lib must be located in one of the directories: $malloc_dirs"
|
||
|
|
exit 1
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
log_error "--malloc-lib must be an absolute path or 'tcmalloc'; " \
|
||
|
|
"ignoring value '$malloc_lib'"
|
||
|
|
exit 1
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
|
||
|
|
add_mysqld_ld_preload "$malloc_lib"
|
||
|
|
}
|
||
|
|
|
||
|
|
find_basedir_from_cmdline () {
|
||
|
|
for arg in "$@"; do
|
||
|
|
case $arg in
|
||
|
|
--basedir=*)
|
||
|
|
MY_BASEDIR_VERSION="`echo "$arg" | sed -e 's;^--[^=]*=;;'`"
|
||
|
|
# Convert to full path
|
||
|
|
cd "$MY_BASEDIR_VERSION"
|
||
|
|
if [ $? -ne 0 ] ; then
|
||
|
|
log_error "--basedir set to '$MY_BASEDIR_VERSION', however could not access directory"
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
MY_BASEDIR_VERSION="`pwd`"
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
done
|
||
|
|
}
|
||
|
|
|
||
|
|
#
|
||
|
|
# First, try to find BASEDIR and ledir (where mysqld is)
|
||
|
|
#
|
||
|
|
|
||
|
|
oldpwd="`pwd`"
|
||
|
|
|
||
|
|
# Args not parsed yet, check if --basedir was given on command line
|
||
|
|
find_basedir_from_cmdline "$@"
|
||
|
|
|
||
|
|
# --basedir is already overridden on command line
|
||
|
|
if test -n "$MY_BASEDIR_VERSION" -a -d "$MY_BASEDIR_VERSION" ; then
|
||
|
|
# Search for mysqld and set ledir
|
||
|
|
for dir in @INSTALL_SBINDIR@ libexec sbin bin ; do
|
||
|
|
if test -x "$MY_BASEDIR_VERSION/$dir/mysqld" ; then
|
||
|
|
ledir="$MY_BASEDIR_VERSION/$dir"
|
||
|
|
break
|
||
|
|
fi
|
||
|
|
done
|
||
|
|
|
||
|
|
else
|
||
|
|
# Basedir should be parent dir of bindir, unless some non-standard
|
||
|
|
# layout is used
|
||
|
|
|
||
|
|
cd "`dirname $0`"
|
||
|
|
if [ -h "$0" ] ; then
|
||
|
|
realpath="`ls -l "$0" | awk '{print $NF}'`"
|
||
|
|
cd "`dirname "$realpath"`"
|
||
|
|
fi
|
||
|
|
cd ..
|
||
|
|
MY_PWD="`pwd`"
|
||
|
|
|
||
|
|
# Search for mysqld and set ledir and BASEDIR
|
||
|
|
for dir in @INSTALL_SBINDIR@ libexec sbin bin ; do
|
||
|
|
if test -x "$MY_PWD/$dir/mysqld" ; then
|
||
|
|
MY_BASEDIR_VERSION="$MY_PWD"
|
||
|
|
ledir="$MY_BASEDIR_VERSION/$dir"
|
||
|
|
break
|
||
|
|
fi
|
||
|
|
done
|
||
|
|
|
||
|
|
# If we still didn't find anything, use the compiled-in defaults
|
||
|
|
if test -z "$MY_BASEDIR_VERSION" ; then
|
||
|
|
MY_BASEDIR_VERSION='@prefix@'
|
||
|
|
ledir='@libexecdir@'
|
||
|
|
fi
|
||
|
|
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
|
||
|
|
# Or just give up and use our compiled-in default
|
||
|
|
else
|
||
|
|
DATADIR=@localstatedir@
|
||
|
|
fi
|
||
|
|
|
||
|
|
if test -z "$MYSQL_HOME"
|
||
|
|
then
|
||
|
|
MYSQL_HOME=$MY_BASEDIR_VERSION
|
||
|
|
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 "$MY_BASEDIR_VERSION/bin/my_print_defaults" ; then
|
||
|
|
print_defaults="$MY_BASEDIR_VERSION/bin/my_print_defaults"
|
||
|
|
elif test -x "@bindir@/my_print_defaults" ; then
|
||
|
|
print_defaults="@bindir@/my_print_defaults"
|
||
|
|
else
|
||
|
|
print_defaults="my_print_defaults"
|
||
|
|
fi
|
||
|
|
|
||
|
|
append_arg_to_args () {
|
||
|
|
args="$args "`shell_quote_string "$1"`
|
||
|
|
}
|
||
|
|
|
||
|
|
args=
|
||
|
|
|
||
|
|
cd "$oldpwd"
|
||
|
|
|
||
|
|
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 $defaults --loose-verbose mysqld_safe safe_mysqld`
|
||
|
|
parse_arguments PICK-ARGS-FROM-ARGV "$@"
|
||
|
|
|
||
|
|
#
|
||
|
|
# Sort out date command from $timestamp_format early so we'll start off
|
||
|
|
# with correct log messages.
|
||
|
|
#
|
||
|
|
case "$timestamp_format" in
|
||
|
|
UTC|utc) DATE="date -u +%Y-%m-%dT%H:%M:%S.%06NZ";;
|
||
|
|
SYSTEM|system) DATE="date +%Y-%m-%dT%H:%M:%S.%06N%:z";;
|
||
|
|
HYPHEN|hyphen) DATE="date +'%Y-%m-%d %H:%M:%S'";;
|
||
|
|
LEGACY|legacy) DATE="date +'%y%m%d %H:%M:%S'";;
|
||
|
|
*) DATE="date -u +%Y-%m-%dT%H:%M:%S.%06NZ";
|
||
|
|
log_error "unknown data format $timestamp_format, using UTC";;
|
||
|
|
esac
|
||
|
|
|
||
|
|
#
|
||
|
|
# Try to find the plugin directory
|
||
|
|
#
|
||
|
|
|
||
|
|
# Use user-supplied argument
|
||
|
|
if [ -n "${PLUGIN_DIR}" ]; then
|
||
|
|
plugin_dir="${PLUGIN_DIR}"
|
||
|
|
else
|
||
|
|
# Try to find plugin dir relative to basedir
|
||
|
|
for dir in lib64/mysql/plugin lib64/plugin lib/mysql/plugin lib/plugin
|
||
|
|
do
|
||
|
|
if [ -d "${MY_BASEDIR_VERSION}/${dir}" ]; then
|
||
|
|
plugin_dir="${MY_BASEDIR_VERSION}/${dir}"
|
||
|
|
break
|
||
|
|
fi
|
||
|
|
done
|
||
|
|
# Give up and use compiled-in default
|
||
|
|
if [ -z "${plugin_dir}" ]; then
|
||
|
|
plugin_dir='@pkgplugindir@'
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
plugin_dir="${plugin_dir}${PLUGIN_VARIANT}"
|
||
|
|
|
||
|
|
# 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 [ $want_syslog -eq 1 ]
|
||
|
|
then
|
||
|
|
if [ -n "$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}-$syslog_tag"
|
||
|
|
fi
|
||
|
|
log_notice "Logging to syslog."
|
||
|
|
logging=syslog
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ -n "$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="$err_log".err
|
||
|
|
fi
|
||
|
|
|
||
|
|
err_log_append="$err_log"
|
||
|
|
case "$err_log" in
|
||
|
|
/* ) ;;
|
||
|
|
./*|../*)
|
||
|
|
# Preparing absolute path from the relative path value specified for the
|
||
|
|
# --log-error argument.
|
||
|
|
#
|
||
|
|
# Absolute path will be prepared for the value of following form
|
||
|
|
# ./bar/foo OR
|
||
|
|
# ../old_bar/foo
|
||
|
|
# for --log-error argument.
|
||
|
|
#
|
||
|
|
# Note: If directory of log file name does not exists or
|
||
|
|
# if write or execute permissions are missing on directory then
|
||
|
|
# --log-error is set $DATADIR/`hostname`.err
|
||
|
|
|
||
|
|
log_dir_name="$(dirname "$err_log")";
|
||
|
|
if [ ! -d "$log_dir_name" ]
|
||
|
|
then
|
||
|
|
log_notice "Directory "$log_dir_name" does not exists.";
|
||
|
|
err_log=$DATADIR/`hostname`.err
|
||
|
|
elif [ ! -x "$log_dir_name" -o ! -w "$log_dir_name" ]
|
||
|
|
then
|
||
|
|
log_notice "Do not have Execute or Write permissions on directory "$log_dir_name".";
|
||
|
|
err_log=$DATADIR/`hostname`.err
|
||
|
|
else
|
||
|
|
err_log=$(cd $log_dir_name && pwd -P)/$(basename "$err_log")
|
||
|
|
fi
|
||
|
|
;;
|
||
|
|
* ) err_log="$DATADIR/$err_log" ;;
|
||
|
|
esac
|
||
|
|
else
|
||
|
|
err_log=$DATADIR/`hostname`.err
|
||
|
|
err_log_append=`hostname`.err
|
||
|
|
fi
|
||
|
|
|
||
|
|
append_arg_to_args "--log-error=$err_log_append"
|
||
|
|
|
||
|
|
if [ $want_syslog -eq 1 ]
|
||
|
|
then
|
||
|
|
logging=both
|
||
|
|
else
|
||
|
|
logging=file
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
|
||
|
|
logdir=`dirname "$err_log"`
|
||
|
|
# Change the err log to the right user, if possible and it is in use
|
||
|
|
if [ $logging = "file" -o $logging = "both" ]; then
|
||
|
|
if [ ! -e "$err_log" -a ! -h "$err_log" ]; then
|
||
|
|
if test -w / -o "$USER" = "root"; then
|
||
|
|
case $logdir in
|
||
|
|
/var/log)
|
||
|
|
(
|
||
|
|
umask 0137
|
||
|
|
set -o noclobber
|
||
|
|
> "$err_log" && chown $user "$err_log"
|
||
|
|
) ;;
|
||
|
|
*) ;;
|
||
|
|
esac
|
||
|
|
else
|
||
|
|
(
|
||
|
|
umask 0137
|
||
|
|
set -o noclobber
|
||
|
|
> "$err_log"
|
||
|
|
)
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ -f "$err_log" -o -p "$err_log" ]; then # Log to err_log file
|
||
|
|
log_notice "Logging to '$err_log'."
|
||
|
|
elif [ "x$user" = "xroot" ]; then # running as root, mysqld can create log file; continue
|
||
|
|
echo "Logging to '$err_log'." >&2
|
||
|
|
else
|
||
|
|
case $logdir in
|
||
|
|
# We can't create $err_log, however mysqld can; continue
|
||
|
|
/tmp|/var/tmp|/var/log/mysql|$DATADIR)
|
||
|
|
echo "Logging to '$err_log'." >&2
|
||
|
|
;;
|
||
|
|
# We can't create $err_log and don't know if mysqld can; error out
|
||
|
|
*)
|
||
|
|
log_error "error: log-error set to '$err_log', however file don't exists. Create writable for user '$user'."
|
||
|
|
exit 1
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
|
||
|
|
USER_OPTION=""
|
||
|
|
if test -w / -o "$USER" = "root"
|
||
|
|
then
|
||
|
|
if test "$user" != "root" -o $SET_USER = 1
|
||
|
|
then
|
||
|
|
USER_OPTION="--user=$user"
|
||
|
|
fi
|
||
|
|
if test -n "$open_files"
|
||
|
|
then
|
||
|
|
ulimit -n $open_files
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
|
||
|
|
if test -n "$open_files"
|
||
|
|
then
|
||
|
|
append_arg_to_args "--open-files-limit=$open_files"
|
||
|
|
fi
|
||
|
|
|
||
|
|
safe_mysql_unix_port=${mysql_unix_port:-${MYSQL_UNIX_PORT:-@MYSQL_UNIX_ADDR@}}
|
||
|
|
# Check that directory for $safe_mysql_unix_port exists
|
||
|
|
mysql_unix_port_dir=`dirname $safe_mysql_unix_port`
|
||
|
|
if [ ! -d $mysql_unix_port_dir ]
|
||
|
|
then
|
||
|
|
log_error "Directory '$mysql_unix_port_dir' for UNIX socket file don't exists."
|
||
|
|
exit 1
|
||
|
|
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"
|
||
|
|
pid_file_append="`hostname`.pid"
|
||
|
|
else
|
||
|
|
pid_file_append="$pid_file"
|
||
|
|
case "$pid_file" in
|
||
|
|
/* ) ;;
|
||
|
|
* ) pid_file="$DATADIR/$pid_file" ;;
|
||
|
|
esac
|
||
|
|
fi
|
||
|
|
append_arg_to_args "--pid-file=$pid_file_append"
|
||
|
|
|
||
|
|
if test -n "$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 "$pid_file"`
|
||
|
|
if @CHECK_PID@
|
||
|
|
then
|
||
|
|
if @FIND_PROC@
|
||
|
|
then # The pid contains a mysqld process
|
||
|
|
log_error "A mysqld process already exists"
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
if [ ! -h "$pid_file" ]; then
|
||
|
|
rm -f "$pid_file"
|
||
|
|
if test -f "$pid_file"; then
|
||
|
|
log_error "Fatal error: Can't remove the pid file:
|
||
|
|
$pid_file.
|
||
|
|
Please remove the file manually and start $0 again;
|
||
|
|
mysqld daemon not started"
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
if [ ! -h "$safe_mysql_unix_port" ]; then
|
||
|
|
rm -f "$safe_mysql_unix_port"
|
||
|
|
if test -f "$safe_mysql_unix_port"; then
|
||
|
|
log_error "Fatal error: Can't remove the socket file:
|
||
|
|
$safe_mysql_unix_port.
|
||
|
|
Please remove the file manually and start $0 again;
|
||
|
|
mysqld daemon not started"
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
if [ ! -h "$pid_file.shutdown" ]; then
|
||
|
|
rm -f "$pid_file.shutdown"
|
||
|
|
if test -f "$pid_file.shutdown"; then
|
||
|
|
log_error "Fatal error: Can't remove the shutdown file:
|
||
|
|
$pid_file.shutdown.
|
||
|
|
Please remove the file manually and start $0 again;
|
||
|
|
mysqld daemon not started"
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
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 $DATADIR/*/*.ISM
|
||
|
|
|
||
|
|
# Does this work on all systems?
|
||
|
|
#if type ulimit | grep "shell builtin" > /dev/null
|
||
|
|
#then
|
||
|
|
# ulimit -n 256 > /dev/null 2>&1 # Fix for BSD and FreeBSD systems
|
||
|
|
#fi
|
||
|
|
|
||
|
|
cmd="`mysqld_ld_preload_text`$NOHUP_NICENESS"
|
||
|
|
|
||
|
|
for i in "$ledir/$MYSQLD" "$defaults" "--basedir=$MY_BASEDIR_VERSION" \
|
||
|
|
"--datadir=$DATADIR" "--plugin-dir=$plugin_dir" "$USER_OPTION"
|
||
|
|
do
|
||
|
|
cmd="$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 $DATADIR"
|
||
|
|
|
||
|
|
# variable to track the current number of "fast" (a.k.a. subsecond) restarts
|
||
|
|
fast_restart=0
|
||
|
|
# maximum number of restarts before trottling kicks in
|
||
|
|
max_fast_restarts=5
|
||
|
|
# flag whether a usable sleep command exists
|
||
|
|
have_sleep=1
|
||
|
|
while true
|
||
|
|
do
|
||
|
|
start_time=`date +%M%S`
|
||
|
|
eval_log_error "$cmd"
|
||
|
|
if [ $? -eq 16 ] ; then
|
||
|
|
dont_restart_mysqld=false
|
||
|
|
echo "Restarting mysqld..."
|
||
|
|
else
|
||
|
|
dont_restart_mysqld=true
|
||
|
|
fi
|
||
|
|
|
||
|
|
# hypothetical: log was renamed but not
|
||
|
|
# flushed yet. we'd recreate it with
|
||
|
|
# wrong owner next time we log, so set
|
||
|
|
# it up correctly while we can!
|
||
|
|
|
||
|
|
if [ $want_syslog -eq 0 -a ! -f "$err_log" -a ! -h "$err_log" ]; then
|
||
|
|
if test -w / -o "$USER" = "root"; then
|
||
|
|
logdir=`dirname "$err_log"`
|
||
|
|
case $logdir in
|
||
|
|
/var/log)
|
||
|
|
(
|
||
|
|
umask 0137
|
||
|
|
set -o noclobber
|
||
|
|
> "$err_log" && chown $user "$err_log"
|
||
|
|
) ;;
|
||
|
|
*) ;;
|
||
|
|
esac
|
||
|
|
else
|
||
|
|
(
|
||
|
|
umask 0137
|
||
|
|
set -o noclobber
|
||
|
|
> "$err_log"
|
||
|
|
)
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
|
||
|
|
end_time=`date +%M%S`
|
||
|
|
|
||
|
|
if $dont_restart_mysqld; then
|
||
|
|
if test ! -f "$pid_file" # This is removed if normal shutdown
|
||
|
|
then
|
||
|
|
break
|
||
|
|
else # self's mysqld crashed or other's mysqld running
|
||
|
|
PID=`cat "$pid_file"`
|
||
|
|
if @CHECK_PID@
|
||
|
|
then # true when above pid belongs to a running mysqld process
|
||
|
|
log_error "A mysqld process with pid=$PID is already running. Aborting!!"
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
|
||
|
|
if test -f "$pid_file.shutdown" # created to signal that it must stop
|
||
|
|
then
|
||
|
|
log_notice "$pid_file.shutdown present. The server will not restart."
|
||
|
|
break
|
||
|
|
fi
|
||
|
|
|
||
|
|
|
||
|
|
# sanity check if time reading is sane and there's sleep
|
||
|
|
if test $end_time -gt 0 -a $have_sleep -gt 0
|
||
|
|
then
|
||
|
|
# throttle down the fast restarts
|
||
|
|
if test $end_time -eq $start_time
|
||
|
|
then
|
||
|
|
fast_restart=`expr $fast_restart + 1`
|
||
|
|
if test $fast_restart -ge $max_fast_restarts
|
||
|
|
then
|
||
|
|
log_notice "The server is respawning too fast. Sleeping for 1 second."
|
||
|
|
sleep 1
|
||
|
|
sleep_state=$?
|
||
|
|
if test $sleep_state -gt 0
|
||
|
|
then
|
||
|
|
log_notice "The server is respawning too fast and no working sleep command. Turning off trottling."
|
||
|
|
have_sleep=0
|
||
|
|
fi
|
||
|
|
|
||
|
|
fast_restart=0
|
||
|
|
fi
|
||
|
|
else
|
||
|
|
fast_restart=0
|
||
|
|
fi
|
||
|
|
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 $I + 1`
|
||
|
|
done
|
||
|
|
fi
|
||
|
|
if [ ! -h "$pid_file" ]; then
|
||
|
|
rm -f "$pid_file"
|
||
|
|
fi
|
||
|
|
if [ ! -h "$safe_mysql_unix_port" ]; then
|
||
|
|
rm -f "$safe_mysql_unix_port"
|
||
|
|
fi
|
||
|
|
if [ ! -h "$pid_file.shutdown" ]; then
|
||
|
|
rm -f "$pid_file.shutdown"
|
||
|
|
fi
|
||
|
|
log_notice "mysqld restarted"
|
||
|
|
done
|
||
|
|
|
||
|
|
if [ ! -h "$pid_file.shutdown" ]; then
|
||
|
|
rm -f "$pid_file.shutdown"
|
||
|
|
fi
|
||
|
|
|
||
|
|
log_notice "mysqld from pid file $pid_file ended"
|
||
|
|
|
||
|
|
if [ ! -h "$safe_pid" ]; then
|
||
|
|
rm -f "$safe_pid" # Some Extra Safety. File is deleted
|
||
|
|
fi # once the mysqld process ends.
|