The reason is why the start-stop-daemon (--stop, --start and --status),
when using the --name atribute, search for a program who had the correct
PID file and the correct program name too. However, ddclient, when
running in deamon mode, changes its name each 10 seconds (it starts with
the name ddclient, then changes to "ddclient - sleeping [...] 300
seconds", etc ).
To correct this, I make a simple fix in the file
'ddclient-3.8.0/debian/ddclient.init' (obtained via apt-get source
command).
The patch file follows below. The patched file and the patch was
submitted as an attachment.
--- ddclient.init 2012-01-25 03:41:41.000000000 -0200
+++ ddclient.init.new 2014-06-10 21:39:40.526410491 -0300
@@ -51,10 +51,10 @@
# 0 if daemon has been started
# 1 if daemon was already running
# 2 if daemon could not be started
- start-stop-daemon --test --start --quiet \
- --pidfile $PIDFILE --name $NAME --startas $DAEMON \
- >/dev/null \
- || return 1
+
+ # FIX The deamon name changes all the time when running in deamon mode.
+ # Using a alternative method to check if the program still running.
+ ( read pid < $PIDFILE && ps -p $pid ) >/dev/null 2>&1 && return 1
start-stop-daemon --start --quiet \
--pidfile $PIDFILE --name $NAME --startas $DAEMON \
@@ -76,8 +76,17 @@
# 1 if daemon was already stopped
# 2 if daemon could not be stopped
# other if a failure occurred
+
+ # FIX The deamon name changes all the time when running in deamon mode.
+ # Using a alternative method to stop the program (check using ps and
+ # stop using only the --pidfile option - without --name).
+ ( read pid < "$PIDFILE" && ps -p "$pid" ) >/dev/null 2>&1 \
+ && start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 \
+ --pidfile $PIDFILE
+ # Now, we can run the original command to get the correct return value
start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 \
--pidfile $PIDFILE --name $NAME
+
return "$?"
}
** Patch added: "ddclient.init.patch"
https://bugs.launchpad.net/ubuntu/+source/ddclient/+bug/1241612/+attachment/4129371/+files/ddclient.init.patch
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https://bugs.launchpad.net/bugs/1241612
Title:
'service ddclient stop' doesn't work
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