summaryrefslogtreecommitdiff
path: root/support-files/mysql.server.sh
blob: 6eb2d0bc2579f2e31b48b3eaf300d04e62eb29fd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
#!/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

# MariaDB daemon start/stop script.

# Usually this is put in /etc/init.d (at least on machines SYSV R4 based
# systems) and linked to /etc/rc3.d/S99mysql and /etc/rc0.d/K01mysql.
# When this is done the mysql server will be started when the machine is
# started and shut down when the systems goes down.

# Comments to support chkconfig on RedHat Linux
# chkconfig: 2345 64 36
# description: A very fast and reliable SQL database engine.

# Comments to support LSB init script conventions
### BEGIN INIT INFO
# Provides: mysql
# Required-Start: $local_fs $network $remote_fs
# Should-Start: ypbind nscd ldap ntpd xntpd
# Required-Stop: $local_fs $network $remote_fs
# Default-Start:  2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: start and stop MariaDB
# Description: MariaDB is a very fast and reliable SQL database engine.
### END INIT INFO

# have to do one of the following things for this script to work:
#
# - Run this script from within the MariaDB installation directory
# - Create a /etc/my.cnf file with the following information:
#   [mysqld]
#   basedir=<path-to-mysql-installation-directory>
# - Add the above to any other configuration file (for example ~/.my.ini)
#   and copy my_print_defaults to /usr/bin
# - Add the path to the mysql-installation-directory to the basedir variable
#   below.
#
# If you want to affect other MariaDB variables, you should make your changes
# in the /etc/my.cnf, ~/.my.cnf or other MariaDB configuration files.

# If you change base dir, you must also change datadir. These may get
# overwritten by settings in the MariaDB configuration files.

basedir=
datadir=

# Default value, in seconds, afterwhich the script should timeout waiting
# for server start.
# Value here is overridden by value in my.cnf.
# 0 means don't wait at all
# Negative numbers mean to wait indefinitely
service_startup_timeout=900

# Lock directory for RedHat / SuSE.
lockdir='/var/lock/subsys'
lock_file_path="$lockdir/mysql"

# The following variables are only set for letting mysql.server find things.

# Set some defaults
mysqld_pid_file_path=
if test -z "$basedir"
then
  basedir=@prefix@
  bindir=@bindir@
  if test -z "$datadir"
  then
    datadir=@localstatedir@
  fi
  sbindir=@sbindir@
  libexecdir=@libexecdir@
else
  bindir="$basedir/bin"
  if test -z "$datadir"
  then
    datadir="$basedir/data"
  fi
  sbindir="$basedir/sbin"
  if test -f "$basedir/bin/mysqld"
  then
    libexecdir="$basedir/bin"
  else
    libexecdir="$basedir/libexec"
  fi
fi

# datadir_set is used to determine if datadir was set (and so should be
# *not* set inside of the --basedir= handler.)
datadir_set=

#
# Use LSB init script functions for printing messages, if possible
#
lsb_functions="/lib/lsb/init-functions"
if test -f $lsb_functions ; then
  . $lsb_functions
else
  # Include non-LSB RedHat init functions to make systemctl redirect work
  init_functions="/etc/init.d/functions"
  if test -f $init_functions; then
    . $init_functions
  fi
  log_success_msg()
  {
    echo " SUCCESS! $@"
  }
  log_failure_msg()
  {
    echo " ERROR! $@"
  }
fi

PATH="/sbin:/usr/sbin:/bin:/usr/bin:$basedir/bin"
export PATH

mode=$1    # start or stop

[ $# -ge 1 ] && shift

case `echo "testing\c"`,`echo -n testing` in
    *c*,-n*) echo_n=   echo_c=     ;;
    *c*,*)   echo_n=-n echo_c=     ;;
    *)       echo_n=   echo_c='\c' ;;
esac

parse_server_arguments() {
  for arg do
    val=`echo "$arg" | sed -e 's/^[^=]*=//'`
    case "$arg" in
      --basedir=*)  basedir="$val"
                    bindir="$basedir/bin"
		    if test -z "$datadir_set"; then
		      datadir="$basedir/data"
		    fi
		    sbindir="$basedir/sbin"
                    if test -f "$basedir/bin/mysqld"
                    then
                      libexecdir="$basedir/bin"
                    else
                      libexecdir="$basedir/libexec"
                    fi
		    libexecdir="$basedir/libexec"
        ;;
      --datadir=*)  datadir="$val"
		    datadir_set=1
	;;
      --log-basename=*|--hostname=*|--loose-log-basename=*)
        mysqld_pid_file_path="$val.pid"
	;;
      --pid-file=*) mysqld_pid_file_path="$val" ;;
      --service-startup-timeout=*) service_startup_timeout="$val" ;;
      --user=*) user="$val"; ;;
    esac
  done
}

# Get arguments from the my.cnf file,
# the only group, which is read from now on is [mysqld]
if test -x "$bindir/my_print_defaults";  then
  print_defaults="$bindir/my_print_defaults"
else
  # Try to find basedir in /etc/my.cnf
  conf=/etc/my.cnf
  print_defaults=
  if test -r $conf
  then
    subpat='^[^=]*basedir[^=]*=\(.*\)$'
    dirs=`sed -e "/$subpat/!d" -e 's//\1/' $conf`
    for d in $dirs
    do
      d=`echo $d | sed -e 's/[ 	]//g'`
      if test -x "$d/bin/my_print_defaults"
      then
        print_defaults="$d/bin/my_print_defaults"
        break
      fi
    done
  fi

  # Hope it's in the PATH ... but I doubt it
  test -z "$print_defaults" && print_defaults="my_print_defaults"
fi

user='@MYSQLD_USER@'

su_kill() {
  if test "$USER" = "$user"; then
    kill $* >/dev/null 2>&1
  else
    su - $user -s /bin/sh -c "kill $*" >/dev/null 2>&1
  fi
}

#
# Read defaults file from 'basedir'.   If there is no defaults file there
# check if it's in the old (depricated) place (datadir) and read it from there
#

extra_args=""
if test -r "$basedir/my.cnf"
then
  extra_args="-e $basedir/my.cnf"
else
  if test -r "$datadir/my.cnf"
  then
    extra_args="-e $datadir/my.cnf"
  fi
fi

parse_server_arguments `$print_defaults $extra_args --mysqld mysql.server`
parse_server_arguments "$@"

# wait for the pid file to disappear
wait_for_gone () {
  pid="$1"           # process ID of the program operating on the pid-file
  pid_file_path="$2" # path to the PID file.

  i=0
  crash_protection="by checking again"

  while test $i -ne $service_startup_timeout ; do

    if su_kill -0 "$pid" ; then
      :  # the server still runs
    else
      if test ! -s "$pid_file_path"; then
        # no server process and no pid-file? great, we're done!
        log_success_msg
        return 0
      fi

      # pid-file exists, the server process doesn't.
      # it must've crashed, and mysqld_safe will restart it
      if test -n "$crash_protection"; then
        crash_protection=""
        sleep 5
        continue  # Check again.
      fi

      # Cannot help it
      log_failure_msg "The server quit without updating PID file ($pid_file_path)."
      return 1  # not waiting any more.
    fi

    echo $echo_n ".$echo_c"
    i=`expr $i + 1`
    sleep 1

  done

  log_failure_msg
  return 1
}

wait_for_ready () {

  i=0
  while test $i -ne $service_startup_timeout ; do

    if $bindir/mysqladmin ping >/dev/null 2>&1; then
      log_success_msg
      return 0
    elif kill -0 $! ; then
      :  # mysqld_safe is still running
    else
      # mysqld_safe is no longer running, abort the wait loop
      break
    fi

    echo $echo_n ".$echo_c"
    i=`expr $i + 1`
    sleep 1

  done

  log_failure_msg
  return 1
}
#
# Set pid file if not given
#
if test -z "$mysqld_pid_file_path"
then
  mysqld_pid_file_path=$datadir/`@HOSTNAME@`.pid
else
  case "$mysqld_pid_file_path" in
    /* ) ;;
    * )  mysqld_pid_file_path="$datadir/$mysqld_pid_file_path" ;;
  esac
fi

# source other config files
[ -f /etc/default/mysql ] && . /etc/default/mysql
[ -f /etc/sysconfig/mysql ] && . /etc/sysconfig/mysql
[ -f /etc/conf.d/mysql ] && . /etc/conf.d/mysql

case "$mode" in
  'start')
    # Start daemon

    # Safeguard (relative paths, core dumps..)
    cd $basedir

    echo $echo_n "Starting MariaDB"
    if test -x $bindir/mysqld_safe
    then
      # Give extra arguments to mysqld with the my.cnf file. This script
      # may be overwritten at next upgrade.
      $bindir/mysqld_safe --datadir="$datadir" --pid-file="$mysqld_pid_file_path" "$@" &
      wait_for_ready; return_value=$?

      # Make lock for RedHat / SuSE
      if test -w "$lockdir"
      then
        touch "$lock_file_path"
      fi

      exit $return_value
    else
      log_failure_msg "Couldn't find MariaDB server ($bindir/mysqld_safe)"
    fi
    ;;

  'stop')
    # Stop daemon. We use a signal here to avoid having to know the
    # root password.

    if test -s "$mysqld_pid_file_path"
    then
      mysqld_pid=`cat "$mysqld_pid_file_path"`

      if su_kill -0 $mysqld_pid ; then
        echo $echo_n "Shutting down MariaDB"
        su_kill $mysqld_pid
        # mysqld should remove the pid file when it exits, so wait for it.
        wait_for_gone $mysqld_pid "$mysqld_pid_file_path"; return_value=$?
      else
        log_failure_msg "MariaDB server process #$mysqld_pid is not running!"
        rm "$mysqld_pid_file_path"
      fi

      # Delete lock for RedHat / SuSE
      if test -f "$lock_file_path"
      then
        rm -f "$lock_file_path"
      fi
      exit $return_value
    else
      log_failure_msg "MariaDB server PID file could not be found!"
    fi
    ;;

  'restart')
    # Stop the service and regardless of whether it was
    # running or not, start it again.
    if $0 stop  "$@"; then
      if ! $0 start "$@"; then
        log_failure_msg "Failed to restart server."
        exit 1
      fi
    else
      log_failure_msg "Failed to stop running server, so refusing to try to start."
      exit 1
    fi
    ;;

  'reload'|'force-reload')
    if test -s "$mysqld_pid_file_path" ; then
      read mysqld_pid <  "$mysqld_pid_file_path"
      su_kill -HUP $mysqld_pid && log_success_msg "Reloading service MariaDB"
      touch "$mysqld_pid_file_path"
    else
      log_failure_msg "MariaDB PID file could not be found!"
      exit 1
    fi
    ;;
  'status')
    # First, check to see if pid file exists
    if test -s "$mysqld_pid_file_path" ; then
      read mysqld_pid < "$mysqld_pid_file_path"
      if su_kill -0 $mysqld_pid ; then
        log_success_msg "MariaDB running ($mysqld_pid)"
        exit 0
      else
        log_failure_msg "MariaDB is not running, but PID file exists"
        exit 1
      fi
    else
      # Try to find appropriate mysqld process
      mysqld_pid=`pgrep -f $libexecdir/mysqld`

      # test if multiple pids exist
      pid_count=`echo $mysqld_pid | wc -w`
      if test $pid_count -gt 1 ; then
        log_failure_msg "Multiple MariaDB running but PID file could not be found ($mysqld_pid)"
        exit 5
      elif test -z $mysqld_pid ; then
        if test -f "$lock_file_path" ; then
          log_failure_msg "MariaDB is not running, but lock file ($lock_file_path) exists"
          exit 2
        fi
        log_failure_msg "MariaDB is not running"
        exit 3
      else
        log_failure_msg "MariaDB is running but PID file could not be found"
        exit 4
      fi
    fi
    ;;
  'configtest')
    # Safeguard (relative paths, core dumps..)
    cd $basedir
    echo $echo_n "Testing MariaDB configuration syntax"
    daemon=$bindir/mysqld
    if test -x $libexecdir/mysqld
    then
      daemon=$libexecdir/mysqld
    elif test -x $sbindir/mysqld
    then
      daemon=$sbindir/mysqld
    elif test -x `which mysqld`
    then
      daemon=`which mysqld`
    else
      log_failure_msg "Unable to locate the mysqld binary!"
      exit 1
    fi
    help_out=`$daemon --help 2>&1`; r=$?
    if test "$r" != 0 ; then
      log_failure_msg "$help_out"
      log_failure_msg "There are syntax errors in the server configuration. Please fix them!"
    else
      log_success_msg "Syntax OK"
    fi
    exit $r
    ;;
  'bootstrap')
      if test "$_use_systemctl" == 1 ; then
        log_failure_msg "Please use galera_new_cluster to start the mariadb service with --wsrep-new-cluster"
        exit 1
      fi
      # Bootstrap the cluster, start the first node
      # that initiate the cluster
      echo $echo_n "Bootstrapping the cluster.. "
      $0 start $other_args --wsrep-new-cluster
      exit $?
      ;;
  *)
      # usage
      basename=`basename "$0"`
      echo "Usage: $basename  {start|stop|restart|reload|force-reload|status|configtest|bootstrap}  [ MariaDB server options ]"
      exit 1
    ;;
esac

exit 0