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|
#!/bin/sh
# ctdbd wrapper - start or stop CTDB
usage ()
{
echo "usage: ctdbd_wrapper { start | stop }"
exit 1
}
[ $# -eq 1 ] || usage
action="$1"
############################################################
if [ -z "$CTDB_BASE" ] ; then
export CTDB_BASE="/usr/local/etc/ctdb"
fi
. "${CTDB_BASE}/functions"
loadconfig
ctdbd="${CTDBD:-/usr/local/sbin/ctdbd}"
############################################################
# Only the nested function references its arguments
# shellcheck disable=SC2120
build_ctdb_options ()
{
ctdb_options=""
maybe_set ()
{
# If the given variable isn't set then do nothing
[ -n "$2" ] || return
# If a required value for the variable and it doesn't match,
# then do nothing
[ -z "$3" -o "$3" = "$2" ] || return
val="'$2'"
case "$1" in
--*) sep="=" ;;
-*) sep=" " ;;
esac
# For these options we're only passing a value-less flag.
if [ -n "$3" ] ; then
val=""
sep=""
fi
ctdb_options="${ctdb_options}${ctdb_options:+ }${1}${sep}${val}"
}
# build up ctdb_options variable from optional parameters
maybe_set "--reclock" "$CTDB_RECOVERY_LOCK"
maybe_set "--logging" "$CTDB_LOGGING"
maybe_set "--listen" "$CTDB_NODE_ADDRESS"
maybe_set "--dbdir" "$CTDB_DBDIR"
maybe_set "--dbdir-persistent" "$CTDB_DBDIR_PERSISTENT"
maybe_set "--dbdir-state" "$CTDB_DBDIR_STATE"
maybe_set "--transport" "$CTDB_TRANSPORT"
maybe_set "-d" "$CTDB_DEBUGLEVEL"
maybe_set "--start-as-disabled" "$CTDB_START_AS_DISABLED" "yes"
maybe_set "--start-as-stopped " "$CTDB_START_AS_STOPPED" "yes"
maybe_set "--no-recmaster" "$CTDB_CAPABILITY_RECMASTER" "no"
maybe_set "--no-lmaster" "$CTDB_CAPABILITY_LMASTER" "no"
maybe_set "--nosetsched" "$CTDB_NOSETSCHED" "yes"
maybe_set "--script-log-level" "$CTDB_SCRIPT_LOG_LEVEL"
maybe_set "--max-persistent-check-errors" "$CTDB_MAX_PERSISTENT_CHECK_ERRORS"
}
export_debug_variables ()
{
[ -n "$CTDB_DEBUG_HUNG_SCRIPT" ] && export CTDB_DEBUG_HUNG_SCRIPT
[ -n "$CTDB_DEBUG_LOCKS" ] && export CTDB_DEBUG_LOCKS
}
############################################################
start()
{
# build_ctdb_options() takes no arguments
# shellcheck disable=SC2119
build_ctdb_options
export_debug_variables
eval "$ctdbd" "$ctdb_options" || return 1
# Wait until ctdbd has started and is ready to respond to clients.
_timeout="${CTDB_STARTUP_TIMEOUT:-10}"
_count=0
while [ "$_count" -lt "$_timeout" ] ; do
if $CTDB runstate first_recovery startup running >/dev/null 2>&1 ; then
return 0
fi
_count=$((_count + 1))
sleep 1
done
echo "Timed out waiting for initialisation - check logs"
# Attempt a shutdown just in case things are still running
$CTDB shutdown >/dev/null 2>&1
drop_all_public_ips >/dev/null 2>&1
return 1
}
stop()
{
$CTDB shutdown
# The above command is important and needs to stand out, so
# post-check exit status
# shellcheck disable=SC2181
if [ $? -ne 0 ] ; then
echo "Error while shutting down CTDB"
drop_all_public_ips >/dev/null 2>&1
return 1
fi
return 0
}
############################################################
# Allow notifications for start/stop.
if [ -x "$CTDB_BASE/rc.ctdb" ] ; then
"$CTDB_BASE/rc.ctdb" "$action"
fi
case "$action" in
start) start ;;
stop) stop ;;
*)
echo "usage: $0 {start|stop}"
exit 1
esac
|
