#!/bin/sh
#
-# mysql A very fast and reliable SQL database engine
+# mysql A very fast and reliable SQL database engine
#
-# chkconfig: 2345 84 25
+# chkconfig: 2345 84 25
#
# description: A very fast and reliable SQL database engine.
-#
-# $Id$
# Source function library
. /etc/rc.d/init.d/functions
fi
if [ -f /etc/mysql/clusters.conf ]; then
- MYSQL_DB_CLUSTERS=$(awk -F= '!/^#/{print $2}' /etc/mysql/clusters.conf)
- if [ -z "$MYSQL_DB_CLUSTERS" ]; then
+ MYSQL_DB_CLUSTERS=$(awk -F= '!/^#/ && /=/{print $2}' /etc/mysql/clusters.conf)
+ if [ -z "$MYSQL_DB_CLUSTERS" ]; then
nls "Warning: there are no configured clusters."
fi
else
nls "Warning: Missing clusters config file %s" /etc/mysql/clusters.conf
- if [ -z "$MYSQL_DB_CLUSTERS" ]; then
+ if [ -z "$MYSQL_DB_CLUSTERS" ]; then
nls "Warning: there are no configured clusters."
nls "Using default cluster /var/lib/mysql (compatibility mode)"
MYSQL_DB_CLUSTERS=/var/lib/mysql
exit 0
fi
+sharedir=/usr/share/percona-server
+
action="$1"
# any db cluster as command line argument?
DB_CLUSTERS="$MYSQL_DB_CLUSTERS"
fi
-MYSQL_ERRLOG=/var/log/mysql/err
-MYSQL_START_WAIT_TIME=${MYSQL_START_WAIT_TIME:-15}
+# global error log, if mysqld.conf hasn't migrated to log-error style
+MYSQL_ERRLOG=/var/log/mysql/mysqld.log
MYSQL_STOP_WAIT_TIME=${MYSQL_STOP_WAIT_TIME:-900}
#
clusterdir="$1"
mode="$2"
- mysqlgetconfig "$clusterdir"
+ mysqlgetconfig "$clusterdir" status
MYSQL_STATUS="not running"
MYSQL_PID="unknown"
fi
if [ "$mode" = "start" ]; then
- MYSQL_GREP_PID=$(grep -lE "^/usr/sbin/mysqld.*${MYSQL_PIDFILE}" /proc/[0-9]*/cmdline 2> /dev/null | awk -F "/" '{ print $3; exit; }')
+ MYSQL_GREP_PID=$(grep -alE "^/usr/sbin/mysqld.*${MYSQL_PIDFILE}" /proc/[0-9]*/cmdline 2> /dev/null | awk -F "/" '{ print $3; exit; }')
if [ -n "$MYSQL_GREP_PID" ]; then
MYSQL_PID=$MYSQL_GREP_PID
if grep -qa "$MYSQL_PIDFILE" /proc/$MYSQL_PID/cmdline 2> /dev/null; then
}
# get mysql configuration in variables
-# MYSQL_CONFIG MYSQL_DATA_DIR MYSQL_USER MYSQL_PIDFILE
+# MYSQL_CONFIG MYSQL_CLUSTER_DIR
+# MYSQL_DATA_DIR MYSQL_USER MYSQL_PIDFILE MYSQL_SOCKET MYSQL_PORT MYSQL_BIND_ADDRESS MYSQL_SKIP_NETWORKING MYSQL_LOG_ERROR
#
# arguments
# $1 - db cluster
+# $2 - status | other
mysqlgetconfig() {
- clusterdir="$1"
+ local clusterdir="$1" config_file
+ local mode="$2"
# emulate old behaviour if only one cluster specified
if [ "$clusterdir" = "$MYSQL_DB_CLUSTERS" -a "$clusterdir" = "/var/lib/mysql" -a -f /etc/mysqld.conf ]; then
MYSQL_RA_COMPAT=yes
config_file=/etc/mysqld.conf
else
- config=$(awk -F= -vclusterdir="$clusterdir" '!/^#/{ if (clusterdir == $2) print $1}' /etc/mysql/clusters.conf)
+ local config=$(awk -F= -vclusterdir="$clusterdir" '!/^#/{ if (clusterdir == $2) print $1}' /etc/mysql/clusters.conf)
if [[ $config = /* ]]; then
config_file="$config"
elif [ -f "/etc/mysql/$config" ]; then
if [ -z "$config_file" ]; then
nls "Error: Can't find config file for %s cluster" "$clusterdir"
- exit 6
+ if [ "$mode" = "status" ]; then
+ exit 3
+ else
+ exit 6
+ fi
else
MYSQL_CONFIG="$config_file"
fi
if [ ! -f "$config_file" ]; then
nls "Error: config file %s not found" "$config_file"
nls "MySQL can't be run. Did you initialize DB by doing \`$0 init'?"
- exit 6
+ if [ "$mode" = "status" ]; then
+ exit 3
+ else
+ exit 6
+ fi
fi
- eval `awk '
-/^[ \t]*\[.*\][ \t]*$/ {
- match($0,/\[.*\]/)
- section=substr($0, RSTART + 1, RSTART + RLENGTH - 3)
-}
-section == "mysqld" && $2 ~ "=" {
- if ($1 == "datadir") {
- printf("MYSQL_DATA_DIR=%s;", $3)
- } else if ($1 == "user") {
- printf("MYSQL_USER=%s;", $3)
- } else if ($1 == "pid-file") {
- printf("MYSQL_PIDFILE=%s;", $3)
- } else if ($1 == "socket") {
- printf("MYSQL_SOCKET=%s;", $3)
+ # reset to initial state
+ MYSQL_DATA_DIR= MYSQL_USER= MYSQL_PIDFILE= MYSQL_SOCKET= MYSQL_PORT= MYSQL_BIND_ADDRESS= MYSQL_SKIP_NETWORKING= MYSQL_LOG_ERROR=
+
+ eval `awk -F= '
+ {
+ # undos
+ gsub(/\r$/, "");
+
+ # trim spaces
+ gsub(/^[\t ]+|[\t ]+$/, "", $1);
+ gsub(/^[\t ]+|[\t ]+$/, "", $2);
}
-}
-' $config_file`
+ # skip comments and empty lines
+ /^[;#]|^ *$/ { next }
+
+ /^[ \t]*\[.*\][ \t]*$/ {
+ match($0, /\[.*\]/);
+ section = substr($0, RSTART + 1, RSTART + RLENGTH - 3);
+ next;
+ }
+
+ section == "mysqld" {
+ if ($1 == "datadir") {
+ printf("MYSQL_DATA_DIR=%s;", $2);
+ } else if ($1 == "user") {
+ printf("MYSQL_USER=%s;", $2);
+ } else if ($1 == "pid-file") {
+ printf("MYSQL_PIDFILE=%s;", $2);
+ } else if ($1 == "socket") {
+ printf("MYSQL_SOCKET=%s;", $2);
+ } else if ($1 == "port") {
+ printf("MYSQL_PORT=%s;", $2);
+ } else if ($1 == "bind-address") {
+ printf("MYSQL_BIND_ADDRESS=%s;", $2);
+ } else if ($1 == "skip-networking") {
+ printf("MYSQL_SKIP_NETWORKING=1;");
+ } else if ($1 == "log-error") {
+ printf("MYSQL_LOG_ERROR=%s;", $2);
+ }
+ }
+ ' $config_file`
+
+ # error log not defined in config file. add one
+ if [ -z "$MYSQL_LOG_ERROR" ]; then
+ MYSQL_LOG_ERROR=$MYSQL_ERRLOG
+ else
+ # unset, so mysqld would use value from config itself
+ unset MYSQL_LOG_ERROR
+ fi
if is_yes "$MYSQL_RA_COMPAT"; then
MYSQL_DATA_DIR_SUB=""
exit 6
fi
- if [ -z $MYSQL_USER ]; then
+ if [ -z "$MYSQL_USER" ]; then
echo "$(nls 'MySQL user not configured properly')"'!' >&2
nls "Edit %s and configure it." "$config_file" >&2
exit 6
# start mysql
mysqlstart() {
- clusterdir="$1"
+ local clusterdir="$1"
mysqlgetconfig "$clusterdir"
if [ ! -d "$MYSQL_DATA_DIR/mysql" ]; then
nls "MySQL cluster %s not initialized." "$clusterdir"
exit 6
fi
- msg_starting "MySQL $clusterdir"
- busy
+ msg_starting "MySQL $clusterdir"; busy
[ -z "$DEFAULT_SERVICE_RUN_NICE_LEVEL" ] && DEFAULT_SERVICE_RUN_NICE_LEVEL=0
rm -f "$MYSQL_PIDFILE"
+
TMPDIR=/tmp nice -n ${SERVICE_RUN_NICE_LEVEL:-$DEFAULT_SERVICE_RUN_NICE_LEVEL} \
- /usr/bin/setsid /usr/sbin/mysqld \
+ /usr/bin/setsid /usr/sbin/mysqld \
--defaults-file=$MYSQL_CONFIG \
--datadir=$MYSQL_DATA_DIR \
- --pid-file=$MYSQL_PIDFILE $MYSQL_OPTIONS \
- >> $MYSQL_ERRLOG 2>&1 &
+ --pid-file=$MYSQL_PIDFILE \
+ ${MYSQL_LOG_ERROR:+--log-error="$MYSQL_LOG_ERROR"} \
+ $MYSQL_OPTIONS &
pid=$!
sleep 0.1
# stop mysql
mysqlstop() {
- clusterdir="$1"
+ local clusterdir="$1"
mysqlstatus "$clusterdir" stop
msg_stopping "MySQL $clusterdir"
busy
fi
}
+# report slave status
+# uses MYSQL_SOCKET - path to mysql socket
+slave_status() {
+ if [ ! -x /usr/bin/mysql ]; then
+ echo >&2 "Slave status not available: 'mysql' program not installed."
+ return
+ fi
+
+ # see if slave status can be reported
+ local err=0 slave_status=$(mysql --defaults-file="$MYSQL_CONFIG" --socket="$MYSQL_SOCKET" -e 'show slave status\G')
+ if [ -z "$slave_status" ]; then
+ # slave not setup
+ return
+ fi
+
+ printf "Slave Status:\n"
+
+ set -f
+ eval $(echo "$slave_status" | awk -F': ' '/^ *[A-Za-z_]+:/{
+ k = tolower($1);
+ v = substr($0, length($1) + 3);
+ gsub(/\\/, "\\\\\\", v);
+ gsub(/"/, "\\\"", v);
+ gsub(/`/, "\\`", v);
+ gsub(/\$/, "\\$", v);
+ gsub(/\$/, "\\$", v);
+ printf("%s=\"%s\";\n", k, v);
+ }')
+ set +f
+
+ if [ "$slave_io_running" != "Yes" ]; then
+ printf "\tSlave IO not running\n"
+ err=1
+ fi
+ if [ "$slave_sql_running" != "Yes" ]; then
+ printf "\tSlave SQL not running\n"
+ err=1
+ fi
+
+ if [ "$err" = 1 -a "$last_errno" -gt 0 ]; then
+ printf "\tERROR %s: %s\n" "$last_errno" "$last_error"
+ fi
+
+ if [ "$master_log_file" != "$relay_master_log_file" ]; then
+ printf "\tERROR logfile mismatch (%s)\n" "$relay_master_log_file"
+ err=1
+ fi
+
+ if [ -z "$read_master_log_pos" -o -z "$exec_master_log_pos" ]; then
+ printf "\tERROR No info about master\n"
+ err=1
+ return
+ fi
+
+ diff=$(($read_master_log_pos - $exec_master_log_pos))
+ printf "\tread pos: %s (%s) (host: %s:%d)\n" "$read_master_log_pos" "$master_log_file" "$master_host" "$master_port"
+ printf "\texec pos: %s\n" "$exec_master_log_pos"
+ printf "\tdiff: %s\n" "$diff"
+}
+
#
# check for running mysql instances; if any instance is running then
# create subsys lock file
}
mysqlinit() {
- clusterdir="$1"
+ local clusterdir="$1"
if [ -f /etc/mysqld.conf ]; then
nls "Running in \`no cluster compat' mode: can't initialize database."
MYSQL_CONFIG="$MYSQL_CLUSTER_DIR/mysqld.conf"
fi
- show "Initializing cluster %s" "$clusterdir"; echo
+ show "Initializing cluster %s" "$clusterdir"; started
# Check if not exist init database
if [ -d "$MYSQL_DATA_DIR/mysql" ]; then
nls "Seems that database is initialized now. Remove by hand %s" "$MYSQL_DATA_DIR/mysql"
nls "before initializing database."
nls "For now skipping cluster %s." "$clusterdir"
- return
+ exit 6
fi
show "Installing MySQL system tables for $MYSQL_DATA_DIR"
chown mysql:mysql "$MYSQL_CLUSTER_DIR/mysqldb" "$MYSQL_DATA_DIR" > /dev/null 2>&1
chmod 751 "$MYSQL_CLUSTER_DIR" "$MYSQL_CLUSTER_DIR/mysqldb"
- if [ -f /usr/share/mysql/mysqld.conf -a ! -f "$MYSQL_CLUSTER_DIR/mysqld.conf" ]; then
- sed -e "
- s#\(datadir.*\)=.*#\1= $MYSQL_DATA_DIR#g;
- s#\(pid-file.*\)=.*#\1= $MYSQL_PIDFILE#g;
- s#\(socket.*\)=.*#\1= $MYSQL_SOCKET#g;
- s#@clusterdir@#$MYSQL_CLUSTER_DIR#g;
- " /usr/share/mysql/mysqld.conf > "$MYSQL_CLUSTER_DIR/mysqld.conf"
- chown root:root "$MYSQL_CLUSTER_DIR/mysqld.conf"
- chmod 640 "$MYSQL_CLUSTER_DIR/mysqld.conf"
- fi
-
- if [ ! -e /var/lib/mysql/mysql.sock ] || [ -L /var/lib/mysql/mysql.sock ] && [ -z "$(readlink /var/lib/mysql/mysql.sock)" ]; then
- sock=${MYSQL_SOCKET#/var/lib/mysql/} # make it relative if possible
- ln -s "$sock" /var/lib/mysql/mysql.sock
+ if [ -f $sharedir/mysqld.conf -a ! -f "$MYSQL_CLUSTER_DIR/mysqld.conf" ]; then
+ sed -e "
+ s#\(datadir.*\)=.*#\1= $MYSQL_DATA_DIR#g;
+ s#\(pid-file.*\)=.*#\1= $MYSQL_PIDFILE#g;
+ s#\(socket.*\)=.*#\1= $MYSQL_SOCKET#g;
+ s#@clusterdir@#$MYSQL_CLUSTER_DIR#g;
+ " $sharedir/mysqld.conf > "$MYSQL_CLUSTER_DIR/mysqld.conf"
+ chown root:root "$MYSQL_CLUSTER_DIR/mysqld.conf"
+ chmod 640 "$MYSQL_CLUSTER_DIR/mysqld.conf"
fi
cat > $MYSQL_DATA_DIR/mysql-init.sql <<-EOF
CREATE DATABASE mysql;
use mysql;
- $(cat /usr/share/mysql/mysql_system_tables.sql)
- $(sed -e "/@current_hostname/d" /usr/share/mysql/mysql_system_tables_data.sql)
+ $(cat $sharedir/mysql_system_tables.sql)
+ $(sed -e "/@current_hostname/d" $sharedir/mysql_system_tables_data.sql)
EOF
ok=0
- /usr/sbin/mysqld --bootstrap --skip-grant-tables \
- --datadir=$MYSQL_DATA_DIR --user=$MYSQL_USER \
- --slave-load-tmpdir=$MYSQL_DATA_DIR --tmpdir=$MYSQL_DATA_DIR < \
- $MYSQL_DATA_DIR/mysql-init.sql 2>> /var/log/mysql/err && ok=1
- [ -f $MYSQL_DATA_DIR/mysql/host.frm ] || ok=0
+ /usr/sbin/mysqld \
+ --defaults-file=$MYSQL_CLUSTER_DIR/mysqld.conf \
+ --bootstrap \
+ --skip-grant-tables \
+ --datadir=$MYSQL_DATA_DIR \
+ --user=$MYSQL_USER \
+ --slave-load-tmpdir=$MYSQL_DATA_DIR \
+ --tmpdir=$MYSQL_DATA_DIR \
+ --log-error=$MYSQL_ERRLOG \
+ < $MYSQL_DATA_DIR/mysql-init.sql && ok=1
+ [ -f $MYSQL_DATA_DIR/mysql/user.frm ] || ok=0
if [ "$ok" = 1 ]; then
rm -f $MYSQL_DATA_DIR/mysql-init.sql
END_OF_MSG
show "Filling help tables..."
ok=0
- ( echo "use mysql;"; cat /usr/share/mysql/fill_help_tables.sql ) | \
- /usr/sbin/mysqld --bootstrap --skip-grant-tables \
- --datadir=$MYSQL_DATA_DIR --user=$MYSQL_USER \
- --slave-load-tmpdir=$MYSQL_DATA_DIR --tmpdir=$MYSQL_DATA_DIR < \
- $MYSQL_DATA_DIR/mysql-init.sql 2>> /var/log/mysql/err && ok=1
+ ( echo "use mysql;"; cat $sharedir/fill_help_tables.sql ) | \
+ /usr/sbin/mysqld \
+ --defaults-file=$MYSQL_CLUSTER_DIR/mysqld.conf \
+ --bootstrap \
+ --skip-grant-tables \
+ --datadir=$MYSQL_DATA_DIR \
+ --user=$MYSQL_USER \
+ --slave-load-tmpdir=$MYSQL_DATA_DIR \
+ --tmpdir=$MYSQL_DATA_DIR \
+ --log-error=$MYSQL_ERRLOG \
+ && ok=1
if [ "$ok" = 1 ]; then
ok
else
else
fail
cat << END_OF_MSG
-Installation of grant tables FAILED!
+ERROR:
+ERROR:
+ERROR: Installation of grant tables FAILED!
+ERROR:
+ERROR:
The initialization SQL script was preserved at $MYSQL_DATA_DIR/mysql-init.sql
-Examine the logs in /var/log/mysql for more information. You can
+Examine the logs in /var/log/mysql for more information. You can
also try to start the mysqld daemon with:
/usr/sbin/mysqld --skip-grant &
mysql> show tables
Try 'mysqld --help' if you have problems with paths. Setting on
-logging in /etc/mysqld.conf gives you a log in /var/log/mysql/log that
+logging in $MYSQL_DATA_DIR/mysqld.conf gives you a log in /var/log/mysql/query.log that
may be helpful. The latest information about MySQL is available on the
web at http://www.mysql.com/.
Please consult the MySQL manual section: 'Problems running
mysql_install_db', and the manual section that describes problems on
-your OS. Another information source is the MySQL email archive.
-Please check all of the above before mailing us! And if you do mail
-us, you MUST use the mysqlbug script!
+your OS. Another information source is the MySQL email archive.
END_OF_MSG
exit 1
fi
+
+ # if it's first server, register as default
+ if [ ! -e /var/lib/mysql/mysql.sock ] || [ -L /var/lib/mysql/mysql.sock ] && [ -z "$(readlink /var/lib/mysql/mysql.sock)" ]; then
+ sock=${MYSQL_SOCKET#/var/lib/mysql/} # make it relative if possible
+ ln -s "$sock" /var/lib/mysql/mysql.sock
+ fi
+ # same for config, move to /etc
+ if [ ! -e /etc/mysql/mysqld.conf ]; then
+ mv "$MYSQL_CLUSTER_DIR/mysqld.conf" /etc/mysql/mysqld.conf
+ fi
}
#
#
start() {
- if [ ! -f $MYSQL_ERRLOG ]; then
- touch $MYSQL_ERRLOG
- fi
- chown mysql:mysql $MYSQL_ERRLOG
- chmod 640 $MYSQL_ERRLOG
-
+ local mysqldir
for mysqldir in $DB_CLUSTERS; do
mysqlstatus "$mysqldir" start
if [ "$MYSQL_STATUS" = "running" ]; then
}
stop() {
+ local mysqldir
for mysqldir in $DB_CLUSTERS; do
mysqlstatus "$mysqldir" stop
if [ "$MYSQL_STATUS" = "not running" ]; then
mysqlsubsys
}
-RETVAL=0
-case "$action" in
- start)
- start
- ;;
- stop)
- stop
- ;;
- status)
+condrestart() {
+ if [ ! -f /var/lock/subsys/mysql ]; then
+ msg_not_running "MySQL"
+ RETVAL=$1
+ return
+ fi
+
+ stop
+ start
+}
+
+status() {
+ local mysqldir addr port socket pid pids running datadir
+ RETVAL=3
for mysqldir in $DB_CLUSTERS; do
mysqlstatus "$mysqldir"
if [ "$MYSQL_STATUS" = "running" ]; then
- show "MySQL cluster %s, PID %s" "$mysqldir" "$MYSQL_PID"
+ RETVAL=0
+ addr=${MYSQL_BIND_ADDRESS:-0.0.0.0}
+ port=${MYSQL_PORT:-3306}
+ socket=${MYSQL_SOCKET:-/var/lib/mysql/mysql.sock}
+ pid=$MYSQL_PID
+ nls "MySQL cluster %s, pid %s\n" "$mysqldir" "$pid"
+ [ -z "$MYSQL_SKIP_NETWORKING" ] && nls "\ttcp:%s:%s\n" "$addr" "$port"
+ nls "\tunix: %s\n" "$socket"
+
+ MYSQL_SOCKET=$socket slave_status
+
pids="$pids/$MYSQL_PID/"
progress "$MYSQL_STATUS"
else
fi
done
- if [ $# -gt 1 -a "$running" ]; then
+ if [ $# = 1 -a "$running" ]; then
nls "Warning: MySQL Daemon processes not under clusters.conf control:"
# see if we can display their status
for pid in $running; do
mysqldir=${datadir%/mysqldb/db} # strip /mysqldb/db
mysqlstatus "$mysqldir"
if [ "$MYSQL_STATUS" = "running" ]; then
- show "MySQL cluster %s, PID %s" "$mysqldir" "$pid"
+ addr=${MYSQL_BIND_ADDRESS:-0.0.0.0}
+ port=${MYSQL_PORT:-3306}
+ socket=${MYSQL_SOCKET:-/var/lib/mysql/mysql.sock}
+ nls "MySQL cluster %s, pid %s\n" "$mysqldir" "$pid"
+ [ -z "$MYSQL_SKIP_NETWORKING" ] && nls "\ttcp:%s:%s\n" "$addr" "$port"
+ nls "\tunix: %s\n" "$socket"
+
+ MYSQL_SOCKET=$socket slave_status
+
progress "$MYSQL_STATUS"
else
show "MySQL cluster %s" "$mysqldir"
echo
done
fi
+}
+
+RETVAL=0
+case "$action" in
+ start)
+ start
+ ;;
+ stop)
+ stop
;;
- restart|force-reload)
+ restart)
stop
start
;;
+ try-restart)
+ condrestart 0
+ ;;
+ force-reload)
+ condrestart 7
+ ;;
init)
for mysqldir in $DB_CLUSTERS; do
mysqlinit "$mysqldir"
exit $?
;;
flush-logs)
- for mysqldir in $DB_CLUSTERS; do
- mysqlgetconfig "$mysqldir"
+ for mysqldir in $DB_CLUSTERS; do
+ mysqlgetconfig "$mysqldir"
# just if mysqld is really running
if /usr/bin/mysqladmin --defaults-file="$MYSQL_CONFIG" --socket="$MYSQL_SOCKET" ping >/dev/null 2>&1; then
/usr/bin/mysqladmin --defaults-file="$MYSQL_CONFIG" --socket="$MYSQL_SOCKET" flush-logs
fi
done
;;
+ status)
+ status
+ ;;
*)
- msg_usage "$0 {start|stop|init|restart|force-reload|status}"
+ msg_usage "$0 {start|stop|restart|try-restart|force-reload|init|flush-logs|status}"
exit 3
esac
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