3 # ctdbd wrapper - start or stop CTDB
7 echo "usage: ctdbd_wrapper <pidfile> { start | stop }"
16 ############################################################
18 if [ -z "$CTDB_BASE" ] ; then
19 export CTDB_BASE="/usr/local/etc/ctdb"
22 . "${CTDB_BASE}/functions"
25 [ -n "$CTDB_SOCKET" ] && export CTDB_SOCKET
27 ctdbd="${CTDBD:-/usr/local/sbin/ctdbd}"
29 ############################################################
33 # 1. Check if ctdbd is running.
34 # - If the PID file is being used then, if the PID file is present,
35 # ctdbd is only considered to running if the PID in the file is
37 # - If the PID file is not being used (i.e. we're upgrading from a
38 # version that doesn't support it) then the presence of any ctdbd
39 # processes is enough proof.
41 # 2. Print a comma-separated list of PIDs that can be
42 # used with "pkill -s".
43 # - If the PID file is being used then this is just the PID in that
44 # file. This also happens to be the session ID, so can be used
45 # to kill all CTDB processes.
46 # - If the PID file is not being used (i.e. upgrading) then this is
47 # just any ctdbd processes that are running. Hopefully one of
48 # them is the session ID so that it can be used to kill all CTDB
51 # Combining these 2 checks is an optimisation to avoid potentially
52 # running too many pgrep/pkill processes on an already loaded system.
53 # Trawling through /proc/ can be very expensive.
57 # If the directory for the PID file exists then respect the
58 # existence of a PID file.
59 _pidfile_dir=$(dirname "$pidfile")
60 if [ -d "$_pidfile_dir" ] ; then
61 if read _pid 2>/dev/null <"$pidfile" ; then
64 # Return value of kill is used
65 kill -0 $_pid 2>/dev/null
67 # Missing/empty PID file
71 if _pid=$(pgrep -f "${ctdbd}\>") ; then
72 echo $_pid | sed -e 's@ @,@g'
80 ############################################################
88 # If the given variable isn't set then do nothing
90 # If a required value for the variable and it doesn't match,
92 [ -z "$3" -o "$3" = "$2" ] || return
99 # For these options we're only passing a value-less flag.
100 if [ -n "$3" ] ; then
105 ctdb_options="${ctdb_options}${ctdb_options:+ }${1}${sep}${val}"
108 if [ -z "$CTDB_RECOVERY_LOCK" ] ; then
109 echo "No recovery lock specified. Starting CTDB without split brain prevention."
111 maybe_set "--reclock" "$CTDB_RECOVERY_LOCK"
113 maybe_set "--pidfile" "$pidfile"
115 # build up ctdb_options variable from optional parameters
116 maybe_set "--logging" "$CTDB_LOGGING"
117 maybe_set "--nlist" "$CTDB_NODES"
118 maybe_set "--socket" "$CTDB_SOCKET"
119 maybe_set "--listen" "$CTDB_NODE_ADDRESS"
120 maybe_set "--public-addresses" "$CTDB_PUBLIC_ADDRESSES"
121 maybe_set "--public-interface" "$CTDB_PUBLIC_INTERFACE"
122 maybe_set "--dbdir" "$CTDB_DBDIR"
123 maybe_set "--dbdir-persistent" "$CTDB_DBDIR_PERSISTENT"
124 maybe_set "--dbdir-state" "$CTDB_DBDIR_STATE"
125 maybe_set "--event-script-dir" "$CTDB_EVENT_SCRIPT_DIR"
126 maybe_set "--transport" "$CTDB_TRANSPORT"
127 maybe_set "-d" "$CTDB_DEBUGLEVEL"
128 maybe_set "--notification-script" "$CTDB_NOTIFY_SCRIPT"
129 maybe_set "--start-as-disabled" "$CTDB_START_AS_DISABLED" "yes"
130 maybe_set "--start-as-stopped " "$CTDB_START_AS_STOPPED" "yes"
131 maybe_set "--no-recmaster" "$CTDB_CAPABILITY_RECMASTER" "no"
132 maybe_set "--no-lmaster" "$CTDB_CAPABILITY_LMASTER" "no"
133 maybe_set "--lvs --single-public-ip" "$CTDB_LVS_PUBLIC_IP"
134 maybe_set "--script-log-level" "$CTDB_SCRIPT_LOG_LEVEL"
135 maybe_set "--max-persistent-check-errors" "$CTDB_MAX_PERSISTENT_CHECK_ERRORS"
138 export_debug_variables ()
140 [ -n "$CTDB_DEBUG_HUNG_SCRIPT" ] && export CTDB_DEBUG_HUNG_SCRIPT
141 [ -n "$CTDB_EXTERNAL_TRACE" ] && export CTDB_EXTERNAL_TRACE
142 [ -n "$CTDB_DEBUG_LOCKS" ] && export CTDB_DEBUG_LOCKS
149 if [ -n "$_session" ] ; then
150 pkill -9 -s "$_session" 2>/dev/null
155 ############################################################
159 if _session=$(ctdbd_is_running) ; then
160 echo "CTDB is already running"
164 # About to start new $ctdbd. The main daemon is not running but
165 # there may still be other processes around, so do some cleanup.
166 kill_ctdbd "$_session"
170 export_debug_variables
172 if [ "$CTDB_SUPPRESS_COREFILE" = "yes" ]; then
178 if [ -n "$CTDB_MAX_OPEN_FILES" ]; then
179 ulimit -n $CTDB_MAX_OPEN_FILES
182 mkdir -p $(dirname "$pidfile")
184 if [ -n "$CTDB_VALGRIND" -a "$CTDB_VALGRIND" != "no" ] ; then
185 if [ "$CTDB_VALGRIND" = "yes" ] ; then
186 ctdbd="valgrind -q --log-file=/usr/local/var/log/ctdb_valgrind ${ctdbd}"
188 ctdbd="${CTDB_VALGRIND} ${ctdbd}"
190 ctdb_options="${ctdb_options} --valgrinding"
193 case "$CTDB_LOGGING" in
194 syslog:udp|syslog:udp-rfc5424)
195 logger -t ctdbd "CTDB is being run with ${CTDB_LOGGING}. If nothing is logged then check your syslogd configuration"
197 syslog|syslog:*) : ;;
199 logger -t ctdbd "CTDB is being run without syslog enabled. Logs will be in ${CTDB_LOGGING#file:}"
202 logger -t ctdbd "CTDB is being run without syslog enabled. Logs will be in log.ctdb"
205 eval "$ctdbd" "$ctdb_options" || return 1
207 # Wait until ctdbd has started and is ready to respond to clients.
209 _timeout="${CTDB_STARTUP_TIMEOUT:-10}"
211 while [ $_count -lt $_timeout ] ; do
212 # If we don't have the PID then try to read it.
213 [ -n "$_pid" ] || read _pid 2>/dev/null <"$pidfile"
215 # If we got the PID but the PID file has gone or the process
216 # is no longer running then stop waiting... CTDB is dead.
217 if [ -n "$_pid" ] ; then
218 if [ ! -e "$pidfile" ] || ! kill -0 "$_pid" 2>/dev/null ; then
219 echo "CTDB exited during initialisation - check logs."
221 drop_all_public_ips >/dev/null 2>&1
225 if ctdb runstate first_recovery startup running >/dev/null 2>&1 ; then
230 _count=$(($_count + 1))
234 echo "Timed out waiting for initialisation - check logs - killing CTDB"
236 drop_all_public_ips >/dev/null 2>&1
242 if ! _session=$(ctdbd_is_running) ; then
243 echo "CTDB is not running"
249 # Wait for remaining CTDB processes to exit...
250 _timeout=${CTDB_SHUTDOWN_TIMEOUT:-30}
252 while [ $_count -lt $_timeout ] ; do
253 pkill -0 -s "$_session" 2>/dev/null || return 0
255 _count=$(($_count + 1))
259 echo "Timed out waiting for CTDB to shutdown. Killing CTDB processes."
260 kill_ctdbd "$_session"
261 drop_all_public_ips >/dev/null 2>&1
265 if pkill -0 -s "$_session" ; then
266 # If SIGKILL didn't work then things are bad...
267 echo "Failed to kill all CTDB processes. Giving up."
274 ############################################################
276 # Allow notifications for start/stop.
277 if [ -x "$CTDB_BASE/rc.ctdb" ] ; then
278 "$CTDB_BASE/rc.ctdb" "$action"
285 echo "usage: $0 {start|stop}"