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#1 2007-10-09 17:54:19
- synthead
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- Registered: 2006-05-09
- Posts: 1,337
Restarting processes on a schedule
I have an mpd server running in our store so we can play music from the internet over our hi-fi. It works great all day, however, when we come back in the morning, the audio is "skipping" like a perpetual underbuffer. I believe that the reason lies with the station we're tuned into - I think they disconnect listeners sometime in the night.
So what I need to do is shut down mpd and restart it at 5AM or something like that (unless you guys know of a better way to fix this). How would I be able to do this?
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#2 2007-10-09 18:09:46
- elasticdog
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- From: Washington, USA
- Registered: 2005-05-02
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Re: Restarting processes on a schedule
write a quick cron job to bring mpd down and back up
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#3 2007-10-09 21:21:51
- synthead
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- Registered: 2006-05-09
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Re: Restarting processes on a schedule
How would one do that?
I see that there are easily editable cron configs in /etc, but how would I make it restart at 5AM specifically?
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#4 2007-10-09 22:25:42
- tam1138
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- Registered: 2007-09-10
- Posts: 238
Re: Restarting processes on a schedule
$ man crontab
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#5 2007-10-09 23:04:15
- synthead
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- Registered: 2006-05-09
- Posts: 1,337
Re: Restarting processes on a schedule
Crontab, nice. How's this look?
#
# DO NOT EDIT THIS FILE MANUALLY!! USE crontab -e INSTEAD.
#
# <minute> <hour> <day> <month> <dow> <command>
01 * * * * /usr/sbin/run-cron /etc/cron.hourly
02 00 * * * /usr/sbin/run-cron /etc/cron.daily
22 00 * * 0 /usr/sbin/run-cron /etc/cron.weekly
42 00 1 * * /usr/sbin/run-cron /etc/cron.monthly
00 5 * * * mpd --kill
01 5 * * * mpdOffline
#6 2007-10-09 23:33:22
- Sigi
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- From: Thurgau, Switzerland
- Registered: 2005-09-22
- Posts: 1,131
Re: Restarting processes on a schedule
Crontab, nice. How's this look?
# # DO NOT EDIT THIS FILE MANUALLY!! USE crontab -e INSTEAD. # # <minute> <hour> <day> <month> <dow> <command> 01 * * * * /usr/sbin/run-cron /etc/cron.hourly 02 00 * * * /usr/sbin/run-cron /etc/cron.daily 22 00 * * 0 /usr/sbin/run-cron /etc/cron.weekly 42 00 1 * * /usr/sbin/run-cron /etc/cron.monthly 00 5 * * * mpd --kill 01 5 * * * mpd
You have to specify the path of mpd, change mpd to /usr/bin/mpd
Cheers Sigi
Haven't been here in a while. Still rocking Arch. 
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#7 2007-10-10 01:17:09
- PeteMo
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- From: H'Burg, VA
- Registered: 2006-01-26
- Posts: 191
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Re: Restarting processes on a schedule
you could also use /etc/rc.d/mpd restart
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#8 2007-10-10 03:29:06
- elasticdog
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- From: Washington, USA
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Re: Restarting processes on a schedule
you could also use /etc/rc.d/mpd restart
This is definitely the better option, so that would make it:
0 5 * * * /etc/rc.d/mpd restartOffline
#9 2007-10-10 11:57:17
- .:B:.
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- Registered: 2006-11-26
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Re: Restarting processes on a schedule
You can also set xinetd to run mpd from hour X to Y and shut it down afterwards. Very handy, and imho more sohpisticated than a cron job 
.
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#10 2007-10-10 22:28:16
- synthead
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- Registered: 2006-05-09
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Re: Restarting processes on a schedule
Got the cron job working, works great
How does xinetd work?
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