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Martin Schwenke 1ea3616dcc Eventscripts: improvements to 41.httpd.
* Reduce the failure counts so that restart attempts happen sooner.

* Use service_start() and service_stop() for the restart.
  ctdb_service_start() resets the failure count, which isn't very
  useful in this context.

Signed-off-by: Martin Schwenke <martin@meltin.net>

(This used to be ctdb commit 01776b9f29af9ad5c8534649ece1bd100e450434)
2011-08-11 10:46:56 +10:00

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#!/bin/sh
# event script to manage httpd in a cluster environment
. $CTDB_BASE/functions
detect_init_style
case $CTDB_INIT_STYLE in
redhat)
service_name="httpd"
service_config="http"
;;
suse|debian|*)
service_name="apache2"
service_config="apache2"
;;
esac
# RHEL5 sometimes use a SIGKILL to terminate httpd, which then leaks
# semaphores. This is a hack to clean them up.
cleanup_httpd_semaphore_leak() {
killall -q -0 "$service_name" ||
for i in $(ipcs -s | awk '$3 == "apache" { print $2 }') ; do
ipcrm -s $i
done
}
##########
service_start ()
{
cleanup_httpd_semaphore_leak
service $service_name start
}
service_stop ()
{
service $service_name stop
killall -q -9 $service_name || true
}
loadconfig
ctdb_start_stop_service
is_ctdb_managed_service || exit 0
ctdb_service_check_reconfigure
case "$1" in
startup)
ctdb_service_start
;;
shutdown)
ctdb_service_stop
;;
monitor)
if ctdb_check_tcp_ports 80 >/dev/null 2>/dev/null ; then
ctdb_counter_init
else
ctdb_counter_incr
ctdb_check_counter warn -eq 2 || {
echo "HTTPD is not running. Trying to restart HTTPD."
service_stop
service_start
exit 0
}
ctdb_check_counter warn -ge 5 || {
echo "HTTPD is not running. Trying to restart HTTPD."
service_stop
service_start
exit 1
}
fi
;;
*)
ctdb_standard_event_handler "$@"
;;
esac
exit 0