[darkice] Re: watch darkice errors and restart if necessarily
- From: Niels Dettenbach <nd@xxxxxxxxxxxx>
- To: darkice@xxxxxxxxxxxxx
- Date: Sun, 15 Jan 2012 14:17:36 +0100
Am Samstag, 14. Januar 2012, 23:27:58 schrieb Hungerburg:
> Script can be cleaner, like that:
>
> #!/bin/sh
> while (true) ; do
> echo Start
> ping some.net 3>&1 1>&2 2>&3 | grep -q "Network is unreachable"
> sleep 2
> done
Yes, but i've used some ping check script like this in the past and still got
not any possible network problem solved with it.
So i wrote a small script which checks against a remote (or even local)
icecast streaming server serving the darkice stream if it is up and running
there:
/root/sbin/darkice_restart_if_down.sh
--- snip ---
#!/bin/sh
########################################
## Darkice Watchdog
## watch darkice live stream on icecast
## Niels Dettenbach <nd@xxxxxxxxxxxx>
## (c) 2009 GPL
## v0.2
########################################
# icecast status URL
URL='http://stream.server.tld:8000/status.xsl'
TEXTTOSEARCH='meinradio.mp3'
TIMEOUT=10
DATE=$(date)
LOGFILE=/var/log/darkice_watchdog
CUR=$(curl --connect-timeout ${TIMEOUT} --max-time ${TIMEOUT} -3 --silent
${URL})
TEST=$(echo $CUR | grep ${TEXTTOSEARCH})
# If not zero, server is OK
if [[ ! $TEST == "" ]]; then
echo $DATE "- stream is OK" >> $LOGFILE;
else
echo $DATE "- stream down - restart" >> $LOGFILE;
#restart darkice
/etc/init.d/darkice restart
fi
--- snap ---
The only thing this script did not catch is a silence on the stream (but this
could be added by the jack silence detection extension if required.
...and within the crontab something like:
--- schnipp ---
## Darkice watchdog
*/5 * * * * root /root/sbin/darkice_restart_if_down.sh > /dev/null
--- schnapp ---
But even in a very few scenarios (i.e. with ALSA) a simple darkice restart did
not brought back the full stream incl. content - the script has to wait some
seconds before darkice could get restarted properly and/or other things has to
do in between. So i changed the restart script into something like this a
little bit ugly hack:
--- snip ---
#!/bin/sh
###########################################
## Darkice auto/hard Restarter
## Niels Dettenbach <nd@xxxxxxxxxxxx>
## (c) 2009 - GPL
###########################################
/usr/bin/killall darkice
/bin/sleep 20
# ...do other clean down stuff
/etc/init.d/darkice stop
sleep 7;
# ... do other pre stream init stuff
/etc/init.d/darkice start
--- snap ---
but did not know today why if did this (;).
cheers,
Niels.
--
---
Niels Dettenbach
Syndicat IT&Internet
http://www.syndicat.com/
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