Efektivitas Strategi Ta’bir Mushawwar dalam Pembelajaran Bahasa Arab di Madrasah Ibtidaiyah
Abstract
Speaking proficiency is one of the main skills in Arabic language learning, but fourth grade students of MI TPI Keramat face difficulties in assembling mufradat and practicing active conversation, mainly due to the lack of varied learning strategies. This study aims to analyze the effectiveness of the ta'bir mushawwar strategy, which uses picture as a media to facilitate students in constructing sentences and telling stories, in improving Arabic speaking skills. With a quantitative approach and pre-experiment design, this study involved 18 students of class IV-C. Data were collected through tests, observations, and interviews, then analyzed descriptively and N-Gain test. The posttest average was 83.06 (very good category) with 88.9% completeness, and the N-Gain score was 0.6398 which showed effectiveness in the medium category. The ta'bir mushawwar strategy offers a solution in the form of a visual and hands-on learning approach that can significantly improve students' speaking skills and make learning more interesting and interactive.
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#!/bin/sh # Copyright Abandoned 1996 TCX DataKonsult AB & Monty Program KB & Detron HB # This file is public domain and comes with NO WARRANTY of any kind # # Script to start the MySQL daemon and restart it if it dies unexpectedly # # This should be executed in the MySQL base directory if you are using a # binary installation that is not installed in its compile-time default # location # # mysql.server works by first doing a cd to the base directory and from there # executing mysqld_safe # Initialize script globals KILL_MYSQLD=1; MYSQLD= niceness=0 nowatch=0 mysqld_ld_preload= mysqld_ld_library_path= flush_caches=0 numa_interleave=0 wsrep_on=0 dry_run=0 defaults_group_suffix= # Initial logging status: error log is not open, and not using syslog logging=init want_syslog=0 syslog_tag= user='mysql' group='mysql' pid_file= err_log= err_log_base= skip_err_log=0 syslog_tag_mysqld=mysqld syslog_tag_mysqld_safe=mysqld_safe trap '' 1 2 3 15 # we shouldn't let anyone kill us # MySQL-specific environment variable. First off, it's not really a umask, # it's the desired mode. Second, it follows umask(2), not umask(3) in that # octal needs to be explicit. Our shell might be a proper sh without printf, # multiple-base arithmetic, and binary arithmetic, so this will get ugly. # We reject decimal values to keep things at least half-sane. umask 007 # fallback UMASK="${UMASK-0640}" fmode=`echo "$UMASK" | sed -e 's/[^0246]//g'` octalp=`echo "$fmode"|cut -c1` fmlen=`echo "$fmode"|wc -c|sed -e 's/ //g'` if [ "x$octalp" != "x0" -o "x$UMASK" != "x$fmode" -o "x$fmlen" != "x5" ] then fmode=0640 echo "UMASK must be a 3-digit mode with an additional leading 0 to indicate octal." >&2 echo "The first digit will be corrected to 6, the others may be 0, 2, 4, or 6." >&2 fi fmode=`echo "$fmode"|cut -c3-4` fmode="6$fmode" if [ "x$UMASK" != "x0$fmode" ] then echo "UMASK corrected from $UMASK to 0$fmode ..." fi defaults= case "$1" in --no-defaults|--defaults-file=*|--defaults-extra-file=*) defaults="$1"; shift ;; esac usage () { cat <<EOF Usage: $0 [OPTIONS] --no-defaults Don't read the system defaults file --defaults-file=FILE Use the specified defaults file --defaults-extra-file=FILE Also use defaults from the specified file --defaults-group-suffix=X Additionally read default groups with X appended as a suffix --ledir=DIRECTORY Look for mysqld in the specified directory --open-files-limit=LIMIT Limit the number of open files --crash-script=FILE Script to call when mysqld crashes --core-file-size=LIMIT Limit core files to the specified size --timezone=TZ Set the system timezone --malloc-lib=LIB Preload shared library LIB if available --mysqld=FILE Use the specified file as mysqld --mysqld-version=VERSION Use "mysqld-VERSION" as mysqld --dry-run Simulate the start to detect errors but don't start --nice=NICE Set the scheduling priority of mysqld --no-auto-restart Exit after starting mysqld --nowatch Exit after starting mysqld --plugin-dir=DIR Plugins are under DIR or DIR/VERSION, if VERSION is given --skip-kill-mysqld Don't try to kill stray mysqld processes --syslog Log messages to syslog with 'logger' --skip-syslog Log messages to error log (default) --syslog-tag=TAG Pass -t "mysqld-TAG" to 'logger' --flush-caches Flush and purge buffers/caches before starting the server --numa-interleave Run mysqld with its memory interleaved on all NUMA nodes All other options are passed to the mysqld program. EOF exit 1 } find_in_bin() { if test -x "$MY_BASEDIR_VERSION/bin/$1" then echo "$MY_BASEDIR_VERSION/bin/$1" elif test -x "/usr/bin/$1" then echo "/usr/bin/$1" else echo "$1" fi } log_generic () { [ $dry_run -eq 1 ] && return priority="$1" shift msg="`date +'%y%m%d %H:%M:%S'` mysqld_safe $*" echo "$msg" case $logging in init) ;; # Just echo the message, don't save it anywhere file) if [ "$helper_exist" -eq "0" ]; then echo "$msg" | "$helper" "$user" log "$err_log" fi ;; syslog) logger -t "$syslog_tag_mysqld_safe" -p "$priority" "$*" ;; *) echo "Internal program error (non-fatal):" \ " unknown logging method '$logging'" >&2 ;; esac } log_error () { log_generic daemon.error "$@" >&2 } log_notice () { log_generic daemon.notice "$@" } eval_log_error () { local cmd="$1" case $logging in file) if [ "$helper_exist" -eq "0" ]; then cmd="$cmd 2>&1 | "`shell_quote_string "$helper"`" $user log "`shell_quote_string "$err_log"` fi ;; syslog) # mysqld often prefixes its messages with a timestamp, which is # redundant when logging to syslog (which adds its own timestamp) # However, we don't strip the timestamp with sed here, because # sed buffers output (only GNU sed supports a -u (unbuffered) option) # which means that messages may not get sent to syslog until the # mysqld process quits. cmd="$cmd 2>&1 | logger -t '$syslog_tag_mysqld' -p daemon.error" ;; *) echo "Internal program error (non-fatal):" \ " unknown logging method '$logging'" >&2 ;; esac if test $nowatch -eq 1 then # We'd prefer to exec $cmd here, but SELinux needs to be fixed first #/usr/bin/logger "Running mysqld: $cmd" eval "$cmd &" exit 0 else #echo "Running mysqld: [$cmd]" eval "$cmd" fi } shell_quote_string() { # This sed command makes sure that any special chars are quoted, # so the arg gets passed exactly to the server. echo "$1" | sed -e 's,\([^a-zA-Z0-9/_.=-]\),\\\1,g' } wsrep_pick_url() { [ $# -eq 0 ] && return 0 log_error "WSREP: 'wsrep_urls' is DEPRECATED! Use wsrep_cluster_address to specify multiple addresses instead." if ! command -v nc >/dev/null then log_error "ERROR: nc tool not found in PATH! Make sure you have it installed." return 1 fi local url # Assuming URL in the form scheme://host:port # If host and port are not NULL, the liveness of URL is assumed to be tested # If port part is absent, the url is returned literally and unconditionally # If every URL has port but none is reachable, nothing is returned for url in `echo $@ | sed s/,/\ /g` 0; do local host=`echo $url | cut -d \: -f 2 | sed s/^\\\/\\\///` local port=`echo $url | cut -d \: -f 3` [ -z "$port" ] && break nc -z "$host" $port >/dev/null && break done if [ "$url" == "0" ]; then log_error "ERROR: none of the URLs in '$@' is reachable." return 1 fi echo $url } # Run mysqld with --wsrep-recover and parse recovered position from log. # Position will be stored in wsrep_start_position_opt global. wsrep_start_position_opt="" wsrep_recover_position() { local mysqld_cmd="$@" local euid=$(id -u) local ret=0 local wr_logfile=$(mktemp /tmp/wsrep_recovery.XXXXXX) # safety checks if [ -z $wr_logfile ]; then log_error "WSREP: mktemp failed" return 1 fi if [ -f $wr_logfile ]; then # NOTE! Do not change ownership of the temporary file, as on newer kernel # versions fs.protected_regular is set to '2' and redirecting output with > # as root to a file not owned by root will fail with "Permission denied" chmod 600 $wr_logfile else log_error "WSREP: mktemp failed" return 1 fi local wr_pidfile="$DATADIR/"`uname -n`"-recover.pid" local wr_options="--disable-log-error --pid-file='$wr_pidfile'" log_notice "WSREP: Running position recovery with $wr_options" eval "$mysqld_cmd --wsrep_recover $wr_options 2> $wr_logfile" if [ ! -s "$wr_logfile" ]; then log_error "Log file $wr_logfile was empty, cannot proceed. Is system running fs.protected_regular?" exit 1 fi local rp="$(grep 'WSREP: Recovered position:' $wr_logfile)" if [ -z "$rp" ]; then local skipped="$(grep WSREP $wr_logfile | grep 'skipping position recovery')" if [ -z "$skipped" ]; then log_error "WSREP: Failed to recover position: '`cat $wr_logfile`'" ret=1 else log_notice "WSREP: Position recovery skipped" fi else local start_pos="$(echo $rp | sed 's/.*WSREP\:\ Recovered\ position://' \ | sed 's/^[ \t]*//')" log_notice "WSREP: Recovered position $start_pos" wsrep_start_position_opt="--wsrep_start_position=$start_pos" fi if [ $ret -eq 0 ] ; then local wr_logfile_permanent="$DATADIR/wsrep_recovery.ok" else local wr_logfile_permanent="$DATADIR/wsrep_recovery.fail" fi touch $wr_logfile_permanent [ "$euid" = "0" ] && chown $user $wr_logfile_permanent chmod 600 $wr_logfile_permanent cat "$wr_logfile" >> $wr_logfile_permanent rm -f "$wr_logfile" return $ret } parse_arguments() { for arg do val=`echo "$arg" | sed -e "s;--[^=]*=;;"` case "$arg" in # these get passed explicitly to mysqld --basedir=*) MY_BASEDIR_VERSION="$val" ;; --datadir=*|--data=*) DATADIR="$val" ;; --pid[-_]file=*) pid_file="$val" ;; --plugin[-_]dir=*) PLUGIN_DIR="$val" ;; --user=*) user="$val"; SET_USER=1 ;; --group=*) group="$val"; SET_USER=1 ;; --log[-_]basename=*|--hostname=*|--loose[-_]log[-_]basename=*) pid_file="$val.pid"; err_log_base="$val"; ;; # these might have been set in a [mysqld_safe] section of my.cnf # they are added to mysqld command line to override settings from my.cnf --skip[-_]log[-_]error) err_log=; skip_err_log=1; ;; --log[-_]error=*) err_log="$val"; skip_err_log=0; ;; --port=*) mysql_tcp_port="$val" ;; --socket=*) mysql_unix_port="$val" ;; # mysqld_safe-specific options - must be set in my.cnf ([mysqld_safe])! --core[-_]file[-_]size=*) core_file_size="$val" ;; --ledir=*) ledir="$val" ;; --malloc[-_]lib=*) set_malloc_lib "$val" ;; --crash[-_]script=*) crash_script="$val" ;; --mysqld=*) MYSQLD="$val" ;; --mysqld[-_]version=*) if test -n "$val" then MYSQLD="mysqld-$val" PLUGIN_VARIANT="/$val" else MYSQLD="mysqld" fi ;; --dry[-_]run) dry_run=1 ;; --nice=*) niceness="$val" ;; --nowatch|--no[-_]watch|--no[-_]auto[-_]restart) nowatch=1 ;; --open[-_]files[-_]limit=*) open_files="$val" ;; --skip[-_]kill[-_]mysqld*) KILL_MYSQLD=0 ;; --syslog) want_syslog=1 ;; --skip[-_]syslog) want_syslog=0 ;; --syslog[-_]tag=*) syslog_tag="$val" ;; --timezone=*) TZ="$val"; export TZ; ;; --flush[-_]caches) flush_caches=1 ;; --numa[-_]interleave) numa_interleave=1 ;; --wsrep[-_]on) wsrep_on=1 append_arg_to_args "$arg" ;; --skip[-_]wsrep[-_]on) wsrep_on=0 append_arg_to_args "$arg" ;; --wsrep[-_]on=*) if echo $val | grep -iq '\(ON\|1\)'; then wsrep_on=1 else wsrep_on=0 fi append_arg_to_args "$arg" ;; --wsrep[-_]urls=*) wsrep_urls="$val"; ;; --wsrep[-_]provider=*) if test -n "$val" && test "$val" != "none" then wsrep_restart=1 fi append_arg_to_args "$arg" ;; --defaults-group-suffix=*) defaults_group_suffix="$arg" ;; --help) usage ;; *) case "$unrecognized_handling" in collect) append_arg_to_args "$arg" ;; complain) log_error "unknown option '$arg'" ;; esac esac 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 "$lib_to_add" in *' '*) # Must strip path from lib, and add it to LD_LIBRARY_PATH lib_file=`basename "$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 starts with 'tcmalloc' or 'jemalloc', look for the shared library # using `ldconfig`. # 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() { malloc_lib="$1" if expr "$malloc_lib" : "\(tcmalloc\|jemalloc\)" > /dev/null ; then export PATH=$PATH:/sbin if ! command -v ldconfig > /dev/null 2>&1 then log_error "ldconfig command not found, required for ldconfig -p" exit 1 fi # format from ldconfig: # "libjemalloc.so.1 (libc6,x86-64) => /usr/lib/x86_64-linux-gnu/libjemalloc.so.1" libmalloc_path="$(ldconfig -p | sed -n "/lib${malloc_lib}/p" | cut -d '>' -f2)" if [ -z "$libmalloc_path" ]; then log_error "no shared library for lib$malloc_lib.so.[0-9] found." exit 1 fi for f in $libmalloc_path; do if [ -f "$f" ]; then malloc_lib=$f # get the first path if many break fi done fi # Allow --malloc-lib='' to override other settings [ -z "$malloc_lib" ] && return case "$malloc_lib" in /*) if [ ! -r "$malloc_lib" ]; then log_error "--malloc-lib '$malloc_lib' can not be read and will not be used" exit 1 fi ;; *) log_error "--malloc-lib must be an absolute path, 'tcmalloc' or " \ "'jemalloc'; ignoring value '$malloc_lib'" exit 1 ;; esac add_mysqld_ld_preload "$malloc_lib" } # # First, try to find BASEDIR and ledir (where mysqld is) # MY_PWD=`dirname $0` MY_PWD=`cd "$MY_PWD"/.. && pwd` # 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 "$MY_BASEDIR_VERSION/libexec/mariadbd" then ledir="$MY_BASEDIR_VERSION/libexec" elif test -x "$MY_BASEDIR_VERSION/sbin/mariadbd" then ledir="$MY_BASEDIR_VERSION/sbin" else ledir="$MY_BASEDIR_VERSION/bin" fi elif test -x "$MY_PWD/bin/mariadbd" 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 -x "$MY_PWD/libexec/mariadbd" then MY_BASEDIR_VERSION="$MY_PWD" # Where libexec, share and var are ledir="$MY_PWD/libexec" # Where mysqld is elif test -x "$MY_PWD/sbin/mariadbd" 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='/usr' ledir='/usr/sbin' fi helper=`find_in_bin mysqld_safe_helper` print_defaults=`find_in_bin my_print_defaults` # Check if helper exists command -v $helper --help >/dev/null 2>&1 helper_exist=$? # # 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 # 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=/var/lib/mysql fi if test -z "$MYSQL_HOME" then if test -r "$DATADIR/my.cnf" then log_error "WARNING: Found $DATADIR/my.cnf The data directory is not a valid location for my.cnf, please move it to $MY_BASEDIR_VERSION/my.cnf" fi MYSQL_HOME=$MY_BASEDIR_VERSION fi export MYSQL_HOME append_arg_to_args () { args="$args "`shell_quote_string "$1"` } args= # Get first arguments from the my.cnf file, groups [mysqld] and [server] # (and related) and then merge with the command line arguments SET_USER=2 parse_arguments `$print_defaults $defaults --loose-verbose --mysqld` if test $SET_USER -eq 2 then SET_USER=0 fi # If arguments come from [mysqld_safe] section of my.cnf # we complain about unrecognized options unrecognized_handling=complain parse_arguments `$print_defaults $defaults --loose-verbose mysqld_safe safe_mysqld mariadb_safe mariadbd-safe` # We only need to pass arguments through to the server if we don't # handle them here. So, we collect unrecognized options (passed on # the command line) into the args variable. unrecognized_handling=collect parse_arguments "$@" # # 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 "${plugin_dir}" ]; then plugin_dir='/usr/lib/mysql/plugin' fi fi plugin_dir="${plugin_dir}${PLUGIN_VARIANT}" # Determine what logging facility to use # Ensure that 'logger' exists, if it's requested if [ $want_syslog -eq 1 ] then if ! command -v logger > /dev/null 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 [ $skip_err_log -eq 1 ] then append_arg_to_args "--skip-log-error" fi if [ -n "$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 if [ -n "$err_log_base" ] then err_log=$err_log_base.err case "$err_log" in /* ) ;; * ) err_log="$DATADIR/$err_log" ;; esac else err_log=$DATADIR/`uname -n`.err fi fi append_arg_to_args "--log-error=$err_log" if [ $want_syslog -eq 1 ] then # User explicitly asked for syslog, so warn that it isn't used log_error "Can't log to error log and syslog at the same time. Remove all --log-error configuration options for --syslog to take effect." want_syslog=0 fi # Log to err_log file log_notice "Logging to '$err_log'." logging=file else if [ -n "$syslog_tag" ] then # Sanitize the syslog tag syslog_tag=`echo "$syslog_tag" | sed -e 's/[^a-zA-Z0-9_-]/_/g'` syslog_tag_mysqld_safe="${syslog_tag_mysqld_safe}-$syslog_tag" syslog_tag_mysqld="${syslog_tag_mysqld}-$syslog_tag" fi log_notice "Logging to syslog." logging=syslog fi USER_OPTION="" if test -w / -o "$USER" = "root" then if test "$user" != "root" -o $SET_USER = 1 then USER_OPTION="--user=$user" # To be used if/when we enable --system-group as an option to mysqld GROUP_OPTION="--group=$group" fi if test -n "$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:-/run/mysqld/mysqld.sock}} # 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 -a $dry_run -eq 0 ] then if ! mkdir -p $mysql_unix_port_dir then log_error "Fatal error Can't create database directory '$mysql_unix_port'" exit 1 fi if [ "$user" -a "$group" ]; then chown $user:$group $mysql_unix_port_dir else [ "$user" ] && chown $user $mysql_unix_port_dir [ "$group" ] && chgrp $group $mysql_unix_port_dir fi chmod 755 $mysql_unix_port_dir fi # If the user doesn't specify a binary, we assume name "mariadbd" if test -z "$MYSQLD" then MYSQLD=mariadbd 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 https://mariadb.com/kb/en/mysqld_safe for more information" exit 1 fi if test -z "$pid_file" then pid_file="`uname -n`.pid" fi # MariaDB wants pid file without datadir append_arg_to_args "--pid-file=$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" && [ $dry_run -eq 0 ] then PID=`cat "$pid_file"` if kill -0 $PID > /dev/null 2> /dev/null then if ps wwwp $PID | grep -v mysqld_safe | grep -- $MYSQLD > /dev/null then # The pid contains a mysqld process log_error "A mysqld process already exists" exit 1 fi fi rm -f "$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 true && test $flush_caches -eq 1 then # Locate sync, ensure it exists. if ! command -v sync > /dev/null 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 ! command -v sysctl > /dev/null 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" [ $dry_run -eq 1 ] && cmd='' # # Set mysqld's memory interleave policy. # if true && test $numa_interleave -eq 1 then # Locate numactl, ensure it exists. if ! command -v numactl > /dev/null 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. [ $dry_run -eq 0 ] && cmd="$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_group_suffix" "$defaults" "--basedir=$MY_BASEDIR_VERSION" \ "--datadir=$DATADIR" "--plugin-dir=$plugin_dir" "$USER_OPTION" do cmd="$cmd "`shell_quote_string "$i"` done cmd="$cmd $args" if [ $dry_run -eq 1 ] then # RETURN or EXIT depending if the script is being sourced or not. (return 2> /dev/null) && return || exit fi # Avoid 'nohup: ignoring input' warning test -n "$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 # close stdout and stderr, everything goes to $logging now if expr "${-}" : '.*x' > /dev/null then : else exec 1>/dev/null exec 2>/dev/null fi # maximum number of wsrep restarts max_wsrep_restarts=0 while true do rm -f "$pid_file" # Some extra safety start_time=`date +%M%S` # Perform wsrep position recovery if wsrep_on=1, skip otherwise. if test $wsrep_on -eq 1 then # this sets wsrep_start_position_opt wsrep_recover_position "$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 $wsrep_start_position_opt" else eval_log_error "$cmd $wsrep_start_position_opt --wsrep_cluster_address=$url" fi else eval_log_error "$cmd" fi end_time=`date +%M%S` if test ! -f "$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 true && 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"
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