mirror of
https://github.com/MariaDB/server.git
synced 2025-11-27 05:41:41 +03:00
730466b328
In mysqld_safe script, during the processing of command line options, the supplied wsrep_provider option was not getting appended to the set of mysqld options. Hence, wsrep plugin would never receive the path for wsrep provider. Fixed by adding logic to append the wsrep_provider option to the set of mysqld options.
1088 lines
30 KiB
Bash
1088 lines
30 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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# 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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nowatch=0
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mysqld_ld_preload=
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mysqld_ld_library_path=
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flush_caches=0
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numa_interleave=0
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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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err_log=
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syslog_tag_mysqld=mysqld
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syslog_tag_mysqld_safe=mysqld_safe
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trap '' 1 2 3 15 # we shouldn't let anyone kill us
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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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--no-defaults Don't read the system defaults file
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--core-file-size=LIMIT Limit core files to the specified size
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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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--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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--crash-script=FILE Script to call when mysqld crashes
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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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--no-auto-restart Exit after starting mysqld
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--nowatch Exit after starting 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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--flush-caches Flush and purge buffers/caches before
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starting the server
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--numa-interleave Run mysqld with its memory interleaved
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on all NUMA nodes
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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="`date +'%y%m%d %H:%M:%S'` mysqld_safe $*"
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echo "$msg"
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case $logging in
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init) ;; # Just echo the message, don't save it anywhere
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file) echo "$msg" >> "$err_log" ;;
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syslog) logger -t "$syslog_tag_mysqld_safe" -p "$priority" "$*" ;;
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*)
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echo "Internal program error (non-fatal):" \
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" unknown logging method '$logging'" >&2
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;;
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esac
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}
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log_error () {
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log_generic daemon.error "$@" >&2
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}
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log_notice () {
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log_generic daemon.notice "$@"
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}
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eval_log_error () {
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local cmd="$1"
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case $logging in
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file) cmd="$cmd >> "`shell_quote_string "$err_log"`" 2>&1" ;;
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syslog)
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# mysqld often prefixes its messages with a timestamp, which is
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# redundant when logging to syslog (which adds its own timestamp)
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# However, we don't strip the timestamp with sed here, because
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# sed buffers output (only GNU sed supports a -u (unbuffered) option)
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# which means that messages may not get sent to syslog until the
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# mysqld process quits.
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cmd="$cmd 2>&1 | logger -t '$syslog_tag_mysqld' -p daemon.error"
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;;
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*)
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echo "Internal program error (non-fatal):" \
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" unknown logging method '$logging'" >&2
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;;
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esac
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if test $nowatch -eq 1
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then
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# We'd prefer to exec $cmd here, but SELinux needs to be fixed first
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#/usr/bin/logger "Running mysqld: $cmd"
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eval "$cmd &"
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exit 0
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else
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#echo "Running mysqld: [$cmd]"
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eval "$cmd"
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fi
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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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wsrep_pick_url() {
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[ $# -eq 0 ] && return 0
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log_error "WSREP: 'wsrep_urls' is DEPRECATED! Use wsrep_cluster_address to specify multiple addresses instead."
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if ! which nc >/dev/null; then
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log_error "ERROR: nc tool not found in PATH! Make sure you have it installed."
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return 1
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fi
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local url
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# Assuming URL in the form scheme://host:port
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# If host and port are not NULL, the liveness of URL is assumed to be tested
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# If port part is absent, the url is returned literally and unconditionally
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# If every URL has port but none is reachable, nothing is returned
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for url in `echo $@ | sed s/,/\ /g` 0; do
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local host=`echo $url | cut -d \: -f 2 | sed s/^\\\/\\\///`
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local port=`echo $url | cut -d \: -f 3`
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[ -z "$port" ] && break
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nc -z "$host" $port >/dev/null && break
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done
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if [ "$url" == "0" ]; then
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log_error "ERROR: none of the URLs in '$@' is reachable."
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return 1
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fi
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echo $url
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}
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# Run mysqld with --wsrep-recover and parse recovered position from log.
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# Position will be stored in wsrep_start_position_opt global.
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wsrep_start_position_opt=""
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wsrep_recover_position() {
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local mysqld_cmd="$@"
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local wr_logfile=$(mktemp)
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local euid=$(id -u)
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local ret=0
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[ "$euid" = "0" ] && chown $user $wr_logfile
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chmod 600 $wr_logfile
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log_notice "WSREP: Running position recovery with --log_error=$wr_logfile \
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--pid-file="$DATADIR/`@HOSTNAME@`-recover.pid""
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eval_log_error "$mysqld_cmd --log_error=$wr_logfile --wsrep-recover \
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--pid-file="$DATADIR/`@HOSTNAME@`-recover.pid""
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local rp="$(grep 'WSREP: Recovered position:' $wr_logfile)"
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if [ -z "$rp" ]; then
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local skipped="$(grep WSREP $wr_logfile | grep 'skipping position recovery')"
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if [ -z "$skipped" ]; then
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log_error "WSREP: Failed to recover position:
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'`cat $wr_logfile`'"
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ret=1
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else
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log_notice "WSREP: Position recovery skipped"
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fi
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else
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local start_pos="$(echo $rp | sed 's/.*WSREP\:\ Recovered\ position://' \
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| sed 's/^[ \t]*//')"
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log_notice "WSREP: Recovered position $start_pos"
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wsrep_start_position_opt="--wsrep_start_position=$start_pos"
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fi
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[ $ret -eq 0 ] && rm $wr_logfile
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return $ret
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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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--crash-script=*) CRASH_SCRIPT="$val" ;;
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# these get passed explicitly to mysqld
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--basedir=*) MY_BASEDIR_VERSION="$val" ;;
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--datadir=*|--data=*) DATADIR="$val" ;;
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--pid-file=*) pid_file="$val" ;;
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--plugin-dir=*) PLUGIN_DIR="$val" ;;
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--user=*) user="$val"; SET_USER=1 ;;
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--log-basename=*|--hostname=*|--loose-log-basename=*)
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pid_file="$val.pid";
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err_log="$val.err";
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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=*) ledir="$val" ;;
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--malloc-lib=*) set_malloc_lib "$val" ;;
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--mysqld=*) MYSQLD="$val" ;;
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--mysqld-version=*)
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if test -n "$val"
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then
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MYSQLD="mysqld-$val"
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PLUGIN_VARIANT="/$val"
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else
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MYSQLD="mysqld"
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fi
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;;
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--nice=*) niceness="$val" ;;
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--nowatch|--no-watch|--no-auto-restart) nowatch=1 ;;
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--open-files-limit=*) open_files="$val" ;;
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--open_files_limit=*) open_files="$val" ;;
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--skip-kill-mysqld*) KILL_MYSQLD=0 ;;
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--syslog) want_syslog=1 ;;
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--skip-syslog) want_syslog=0 ;;
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--syslog-tag=*) syslog_tag="$val" ;;
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--timezone=*) TZ="$val"; export TZ; ;;
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--wsrep[-_]urls=*) wsrep_urls="$val"; ;;
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--flush-caches) flush_caches=1 ;;
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--numa-interleave) numa_interleave=1 ;;
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--wsrep[-_]provider=*)
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if test -n "$val" && test "$val" != "none"
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then
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wsrep_restart=1
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fi
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append_arg_to_args "$arg"
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;;
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--help) usage ;;
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*)
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if test -n "$pick_args"
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then
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append_arg_to_args "$arg"
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fi
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;;
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esac
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done
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}
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# Add a single shared library to the list of libraries which will be added to
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# LD_PRELOAD for mysqld
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#
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# Since LD_PRELOAD is a space-separated value (for historical reasons), if a
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# shared lib's path contains spaces, that path will be prepended to
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# LD_LIBRARY_PATH and stripped from the lib value.
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add_mysqld_ld_preload() {
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lib_to_add="$1"
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log_notice "Adding '$lib_to_add' to LD_PRELOAD for mysqld"
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case "$lib_to_add" in
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*' '*)
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# Must strip path from lib, and add it to LD_LIBRARY_PATH
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lib_file=`basename "$lib_to_add"`
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case "$lib_file" in
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*' '*)
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# The lib file itself has a space in its name, and can't
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# be used in LD_PRELOAD
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log_error "library name '$lib_to_add' contains spaces and can not be used with LD_PRELOAD"
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exit 1
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;;
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esac
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lib_path=`dirname "$lib_to_add"`
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lib_to_add="$lib_file"
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[ -n "$mysqld_ld_library_path" ] && mysqld_ld_library_path="$mysqld_ld_library_path:"
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mysqld_ld_library_path="$mysqld_ld_library_path$lib_path"
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;;
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esac
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# LD_PRELOAD is a space-separated
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[ -n "$mysqld_ld_preload" ] && mysqld_ld_preload="$mysqld_ld_preload "
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mysqld_ld_preload="${mysqld_ld_preload}$lib_to_add"
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}
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# Returns LD_PRELOAD (and LD_LIBRARY_PATH, if needed) text, quoted to be
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# suitable for use in the eval that calls mysqld.
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#
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# All values in mysqld_ld_preload are prepended to LD_PRELOAD.
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mysqld_ld_preload_text() {
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text=
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if [ -n "$mysqld_ld_preload" ]; then
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new_text="$mysqld_ld_preload"
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[ -n "$LD_PRELOAD" ] && new_text="$new_text $LD_PRELOAD"
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text="${text}LD_PRELOAD="`shell_quote_string "$new_text"`' '
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fi
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if [ -n "$mysqld_ld_library_path" ]; then
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new_text="$mysqld_ld_library_path"
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[ -n "$LD_LIBRARY_PATH" ] && new_text="$new_text:$LD_LIBRARY_PATH"
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text="${text}LD_LIBRARY_PATH="`shell_quote_string "$new_text"`' '
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fi
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echo "$text"
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}
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mysql_config=
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get_mysql_config() {
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if [ -z "$mysql_config" ]; then
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mysql_config=`echo "$0" | sed 's,/[^/][^/]*$,/mysql_config,'`
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if [ ! -x "$mysql_config" ]; then
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log_error "Can not run mysql_config $@ from '$mysql_config'"
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exit 1
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fi
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fi
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"$mysql_config" "$@"
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}
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# set_malloc_lib LIB
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# - If LIB is empty, do nothing and return
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# - If LIB is 'tcmalloc', look for tcmalloc shared library in /usr/lib
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# then pkglibdir. tcmalloc is part of the Google perftools project.
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# - If LIB is an absolute path, assume it is a malloc shared library
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#
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# Put LIB in mysqld_ld_preload, which will be added to LD_PRELOAD when
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# running mysqld. See ld.so for details.
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set_malloc_lib() {
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malloc_lib="$1"
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if [ "$malloc_lib" = tcmalloc ]; then
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pkglibdir=`get_mysql_config --variable=pkglibdir`
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malloc_lib=
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# This list is kept intentionally simple. Simply set --malloc-lib
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# to a full path if another location is desired.
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for libdir in /usr/lib "$pkglibdir" "$pkglibdir/mysql"; do
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for flavor in _minimal '' _and_profiler _debug; do
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tmp="$libdir/libtcmalloc$flavor.so"
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#log_notice "DEBUG: Checking for malloc lib '$tmp'"
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[ -r "$tmp" ] || continue
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malloc_lib="$tmp"
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break 2
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done
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done
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if [ -z "$malloc_lib" ]; then
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log_error "no shared library for --malloc-lib=tcmalloc found in /usr/lib or $pkglibdir"
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exit 1
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fi
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fi
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# Allow --malloc-lib='' to override other settings
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[ -z "$malloc_lib" ] && return
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case "$malloc_lib" in
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/*)
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if [ ! -r "$malloc_lib" ]; then
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log_error "--malloc-lib '$malloc_lib' can not be read and will not be used"
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exit 1
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fi
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;;
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*)
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log_error "--malloc-lib must be an absolute path or 'tcmalloc'; " \
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"ignoring value '$malloc_lib'"
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exit 1
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;;
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esac
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add_mysqld_ld_preload "$malloc_lib"
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}
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#
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# First, try to find BASEDIR and ledir (where mysqld is)
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#
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if echo '@pkgdatadir@' | grep '^@prefix@' > /dev/null
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then
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relpkgdata=`echo '@pkgdatadir@' | sed -e 's,^@prefix@,,' -e 's,^/,,' -e 's,^,./,'`
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else
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# pkgdatadir is not relative to prefix
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relpkgdata='@pkgdatadir@'
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fi
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MY_PWD=`pwd`
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# Check for the directories we would expect from a binary release install
|
|
if test -n "$MY_BASEDIR_VERSION" -a -d "$MY_BASEDIR_VERSION"
|
|
then
|
|
# BASEDIR is already overridden on command line. Do not re-set.
|
|
|
|
# Use BASEDIR to discover le.
|
|
if test -x "$MY_BASEDIR_VERSION/libexec/mysqld"
|
|
then
|
|
ledir="$MY_BASEDIR_VERSION/libexec"
|
|
elif test -x "$MY_BASEDIR_VERSION/sbin/mysqld"
|
|
then
|
|
ledir="$MY_BASEDIR_VERSION/sbin"
|
|
else
|
|
ledir="$MY_BASEDIR_VERSION/bin"
|
|
fi
|
|
elif test -f "$relpkgdata"/english/errmsg.sys -a -x "$MY_PWD/bin/mysqld"
|
|
then
|
|
MY_BASEDIR_VERSION="$MY_PWD" # Where bin, share and data are
|
|
ledir="$MY_PWD/bin" # Where mysqld is
|
|
# Check for the directories we would expect from a source install
|
|
elif test -f "$relpkgdata"/english/errmsg.sys -a -x "$MY_PWD/libexec/mysqld"
|
|
then
|
|
MY_BASEDIR_VERSION="$MY_PWD" # Where libexec, share and var are
|
|
ledir="$MY_PWD/libexec" # Where mysqld is
|
|
elif test -f "$relpkgdata"/english/errmsg.sys -a -x "$MY_PWD/sbin/mysqld"
|
|
then
|
|
MY_BASEDIR_VERSION="$MY_PWD" # Where sbin, share and var are
|
|
ledir="$MY_PWD/sbin" # 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=$MY_BASEDIR_VERSION
|
|
fi
|
|
fi
|
|
export MYSQL_HOME
|
|
|
|
|
|
# Get first arguments from the my.cnf file, groups [mysqld] and [mysqld_safe]
|
|
# and then merge with the command line arguments
|
|
if test -x "$MY_BASEDIR_VERSION/bin/my_print_defaults"
|
|
then
|
|
print_defaults="$MY_BASEDIR_VERSION/bin/my_print_defaults"
|
|
elif test -x `dirname $0`/my_print_defaults
|
|
then
|
|
print_defaults="`dirname $0`/my_print_defaults"
|
|
elif test -x ./bin/my_print_defaults
|
|
then
|
|
print_defaults="./bin/my_print_defaults"
|
|
elif test -x @bindir@/my_print_defaults
|
|
then
|
|
print_defaults="@bindir@/my_print_defaults"
|
|
elif test -x @bindir@/mysql_print_defaults
|
|
then
|
|
print_defaults="@bindir@/mysql_print_defaults"
|
|
else
|
|
print_defaults="my_print_defaults"
|
|
fi
|
|
|
|
append_arg_to_args () {
|
|
args="$args "`shell_quote_string "$1"`
|
|
}
|
|
|
|
args=
|
|
|
|
SET_USER=2
|
|
parse_arguments `$print_defaults $defaults --loose-verbose --mysqld`
|
|
if test $SET_USER -eq 2
|
|
then
|
|
SET_USER=0
|
|
fi
|
|
|
|
parse_arguments `$print_defaults $defaults --loose-verbose mysqld_safe safe_mysqld mariadb_safe`
|
|
parse_arguments PICK-ARGS-FROM-ARGV "$@"
|
|
|
|
|
|
#
|
|
# 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 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 [ $? -ne 0 ]
|
|
then
|
|
log_error "--syslog requested, but no 'logger' program found. Please ensure that 'logger' is in your PATH, or do not specify the --syslog option to mysqld_safe."
|
|
exit 1
|
|
fi
|
|
fi
|
|
|
|
if [ -n "$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
|
|
|
|
if [ ! -f "$err_log" ]; then # if error log already exists,
|
|
touch "$err_log" # we just append. otherwise,
|
|
chmod "$fmode" "$err_log" # fix the permissions here!
|
|
fi
|
|
|
|
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 $open_files
|
|
fi
|
|
fi
|
|
|
|
if test -n "$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@}}
|
|
# 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
|
|
if ! `mkdir -p $mysql_unix_port_dir`
|
|
then
|
|
echo "Fatal error Can't create database directory '$mysql_unix_port'"
|
|
exit 1
|
|
fi
|
|
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 "$pid_file"
|
|
then
|
|
pid_file="`@HOSTNAME@`.pid"
|
|
fi
|
|
# MariaDB wants pid file without datadir
|
|
append_arg_to_args "--pid-file=$pid_file"
|
|
case "$pid_file" in
|
|
/* ) ;;
|
|
* ) pid_file="$DATADIR/$pid_file" ;;
|
|
esac
|
|
|
|
if test -n "$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
|
|
|
|
#
|
|
# Flush and purge buffers/caches.
|
|
#
|
|
|
|
if @TARGET_LINUX@ && test $flush_caches -eq 1
|
|
then
|
|
# Locate sync, ensure it exists.
|
|
if ! my_which sync > /dev/null 2>&1
|
|
then
|
|
log_error "sync command not found, required for --flush-caches"
|
|
exit 1
|
|
# Flush file system buffers.
|
|
elif ! sync
|
|
then
|
|
# Huh, the sync() function is always successful...
|
|
log_error "sync failed, check if sync is properly installed"
|
|
fi
|
|
|
|
# Locate sysctl, ensure it exists.
|
|
if ! my_which sysctl > /dev/null 2>&1
|
|
then
|
|
log_error "sysctl command not found, required for --flush-caches"
|
|
exit 1
|
|
# Purge page cache, dentries and inodes.
|
|
elif ! sysctl -q -w vm.drop_caches=3
|
|
then
|
|
log_error "sysctl failed, check the error message for details"
|
|
exit 1
|
|
fi
|
|
elif test $flush_caches -eq 1
|
|
then
|
|
log_error "--flush-caches is not supported on this platform"
|
|
exit 1
|
|
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"
|
|
|
|
#
|
|
# Set mysqld's memory interleave policy.
|
|
#
|
|
|
|
if @TARGET_LINUX@ && test $numa_interleave -eq 1
|
|
then
|
|
# Locate numactl, ensure it exists.
|
|
if ! my_which numactl > /dev/null 2>&1
|
|
then
|
|
log_error "numactl command not found, required for --numa-interleave"
|
|
exit 1
|
|
# Attempt to run a command, ensure it works.
|
|
elif ! numactl --interleave=all true
|
|
then
|
|
log_error "numactl failed, check if numactl is properly installed"
|
|
fi
|
|
|
|
# Launch mysqld with numactl.
|
|
cmd="$cmd numactl --interleave=all"
|
|
elif test $numa_interleave -eq 1
|
|
then
|
|
log_error "--numa-interleave is not supported on this platform"
|
|
exit 1
|
|
fi
|
|
|
|
#
|
|
# Set mysqld's memory interleave policy.
|
|
#
|
|
|
|
if @TARGET_LINUX@ && test $numa_interleave -eq 1
|
|
then
|
|
# Locate numactl, ensure it exists.
|
|
if ! my_which numactl > /dev/null 2>&1
|
|
then
|
|
log_error "numactl command not found, required for --numa-interleave"
|
|
exit 1
|
|
# Attempt to run a command, ensure it works.
|
|
elif ! numactl --interleave=all true
|
|
then
|
|
log_error "numactl failed, check if numactl is properly installed"
|
|
fi
|
|
|
|
# Launch mysqld with numactl.
|
|
cmd="$cmd numactl --interleave=all"
|
|
elif test $numa_interleave -eq 1
|
|
then
|
|
log_error "--numa-interleave is not supported on this platform"
|
|
exit 1
|
|
fi
|
|
|
|
for i in "$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 $args"
|
|
# Avoid 'nohup: ignoring input' warning
|
|
nohup_redir=""
|
|
test -n "$NOHUP_NICENESS" && nohup_redir=" < /dev/null"
|
|
|
|
log_notice "Starting $MYSQLD daemon with databases from $DATADIR"
|
|
|
|
# variable to track the current number of "fast" (a.k.a. subsecond) restarts
|
|
fast_restart=0
|
|
# maximum number of restarts before trottling kicks in
|
|
max_fast_restarts=5
|
|
# flag whether a usable sleep command exists
|
|
have_sleep=1
|
|
|
|
# maximum number of wsrep restarts
|
|
max_wsrep_restarts=0
|
|
|
|
while true
|
|
do
|
|
rm -f "$pid_file" # Some extra safety
|
|
|
|
start_time=`date +%M%S`
|
|
|
|
# this sets wsrep_start_position_opt
|
|
wsrep_recover_position "$cmd"
|
|
|
|
[ $? -ne 0 ] && exit 1 #
|
|
|
|
[ -n "$wsrep_urls" ] && url=`wsrep_pick_url $wsrep_urls` # check connect address
|
|
|
|
if [ -z "$url" ]
|
|
then
|
|
eval_log_error "$cmd $wsrep_start_position_opt $nohup_redir"
|
|
else
|
|
eval_log_error "$cmd $wsrep_start_position_opt --wsrep_cluster_address=$url $nohup_redir"
|
|
fi
|
|
|
|
if [ $want_syslog -eq 0 -a ! -f "$err_log" ]; then
|
|
touch "$err_log" # hypothetical: log was renamed but not
|
|
chown $user "$err_log" # flushed yet. we'd recreate it with
|
|
chmod "$fmode" "$err_log" # wrong owner next time we log, so set
|
|
fi # it up correctly while we can!
|
|
|
|
end_time=`date +%M%S`
|
|
|
|
if test ! -f "$pid_file" # This is removed if normal shutdown
|
|
then
|
|
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 $I + 1`
|
|
done
|
|
fi
|
|
|
|
if [ -n "$wsrep_restart" ]
|
|
then
|
|
if [ $wsrep_restart -le $max_wsrep_restarts ]
|
|
then
|
|
wsrep_restart=`expr $wsrep_restart + 1`
|
|
log_notice "WSREP: sleeping 15 seconds before restart"
|
|
sleep 15
|
|
else
|
|
log_notice "WSREP: not restarting wsrep node automatically"
|
|
break
|
|
fi
|
|
fi
|
|
|
|
log_notice "mysqld restarted"
|
|
if test -n "$CRASH_SCRIPT"
|
|
then
|
|
crash_script_output=`$CRASH_SCRIPT 2>&1`
|
|
log_error "$crash_script_output"
|
|
fi
|
|
done
|
|
|
|
log_notice "mysqld from pid file $pid_file ended"
|
|
|