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bcadab7149
Scripts that use these counters must call ctdb_setup_state_dir(). Signed-off-by: Martin Schwenke <martin@meltin.net> Reviewed-by: Amitay Isaacs <amitay@gmail.com>
87 lines
1.6 KiB
Bash
Executable File
87 lines
1.6 KiB
Bash
Executable File
#!/bin/sh
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# event script to manage httpd in a cluster environment
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[ -n "$CTDB_BASE" ] || \
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CTDB_BASE=$(d=$(dirname "$0") ; cd -P "$d" ; dirname "$PWD")
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. "${CTDB_BASE}/functions"
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detect_init_style
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case $CTDB_INIT_STYLE in
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redhat)
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service_name="httpd"
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# service_config is used by loadconfig()
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# shellcheck disable=SC2034
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service_config="http"
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;;
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suse|debian|*)
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service_name="apache2"
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# service_config is used by loadconfig()
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# shellcheck disable=SC2034
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service_config="apache2"
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;;
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esac
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ctdb_setup_state_dir "service" "$service_name"
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# RHEL5 sometimes use a SIGKILL to terminate httpd, which then leaks
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# semaphores. This is a hack to clean them up.
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cleanup_httpd_semaphore_leak() {
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killall -q -0 "$service_name" ||
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for i in $(ipcs -s | awk '$3 == "apache" { print $2 }') ; do
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ipcrm -s "$i"
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done
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}
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##########
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service_start ()
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{
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cleanup_httpd_semaphore_leak
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service $service_name start
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}
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service_stop ()
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{
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service $service_name stop
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killall -q -9 $service_name || true
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}
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loadconfig
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is_ctdb_managed_service || exit 0
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case "$1" in
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startup)
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service_start
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ctdb_counter_init
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;;
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shutdown)
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service_stop
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;;
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monitor)
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if ctdb_check_tcp_ports 80 >/dev/null 2>/dev/null ; then
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ctdb_counter_init
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else
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ctdb_counter_incr
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num_fails=$(ctdb_counter_get)
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if [ "$num_fails" -eq 2 ] ; then
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echo "HTTPD is not running. Trying to restart HTTPD."
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service_stop
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service_start
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exit 0
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elif [ "$num_fails" -ge 5 ] ; then
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echo "HTTPD is not running. Trying to restart HTTPD."
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service_stop
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service_start
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exit 1
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fi
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fi
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;;
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esac
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exit 0
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