[SOLVED] Cron doesn't like me :

Hello everyone.
Sorry if this is a noob question. I'm not really new to linux. But this time I simply have no idea what I'm doing wrong.
I have this router which needs a connection traffic every few minutes to keep the connection up. So I wanted to use cron to fire wget every 5 minutes. The only problem is that cron doesn't seem to work for me.
Here is my cron file:
# root crontab
# DO NOT EDIT THIS FILE MANUALLY! USE crontab -e INSTEAD
# man 1 crontab for acceptable formats:
# <minute> <hour> <day> <month> <dow> <tags and command>
# <@freq> <tags and command>
# SYSTEM DAILY/WEEKLY/... FOLDERS
@hourly ID=sys-hourly /usr/sbin/run-cron /etc/cron.hourly
@daily ID=sys-daily /usr/sbin/run-cron /etc/cron.daily
@weekly ID=sys-weekly /usr/sbin/run-cron /etc/cron.weekly
@monthly ID=sys-monthly /usr/sbin/run-cron /etc/cron.monthly
*/5 * * * * wget -pc --tries=30 http://pl.wikipedia.org/images/wikimedia-button.png
Cron daemon is obviously up and running. Any help would be appreciated :<
Last edited by timecage (2011-01-11 19:03:32)

Jan 1 15:30:01 localhost crond[1202]: FILE /var/spool/cron/root USER root PID 1604 job sys-hourly
Jan 1 15:30:01 localhost crond[1202]: FILE /var/spool/cron/root USER root PID 1605 wget -pc --tries=30 http://pl.wikipedia.org/images/wikimedia-button.png
Jan 1 15:30:01 localhost crond[1608]: mailing cron output for user root wget -pc --tries=30 http://pl.wikipedia.org/images/wikimedia-button.png
Jan 1 15:30:01 localhost crond[1608]: unable to exec /usr/sbin/sendmail: cron output for user root wget -pc --tries=30 http://pl.wikipedia.org/images/wikimedia-button.png to /dev/null
Jan 1 15:35:01 localhost crond[1202]: FILE /var/spool/cron/root USER root PID 1618 wget -pc --tries=30 http://pl.wikipedia.org/images/wikimedia-button.png
Jan 1 15:35:01 localhost crond[1619]: mailing cron output for user root wget -pc --tries=30 http://pl.wikipedia.org/images/wikimedia-button.png
Jan 1 15:35:01 localhost crond[1619]: unable to exec /usr/sbin/sendmail: cron output for user root wget -pc --tries=30 http://pl.wikipedia.org/images/wikimedia-button.png to /dev/null
Jan 1 15:40:01 localhost crond[1202]: FILE /var/spool/cron/root USER root PID 1620 wget -pc --tries=30 http://pl.wikipedia.org/images/wikimedia-button.png
Jan 1 15:40:01 localhost crond[1621]: mailing cron output for user root wget -pc --tries=30 http://pl.wikipedia.org/images/wikimedia-button.png
Jan 1 15:40:01 localhost crond[1621]: unable to exec /usr/sbin/sendmail: cron output for user root wget -pc --tries=30 http://pl.wikipedia.org/images/wikimedia-button.png to /dev/null
That's some of the last lines of crond.log.
I know it doesn't work simply because the last modified timestamp on the file and the directory does not change \o/

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Last edited by luisrayas3 (2014-08-18 20:06:03)

luisrayas3 wrote:
isn't it?? I would consider 3.4.2 == 3.4 from a versioning perspective and therefore also 3.4.2 <= 3.4
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usage: vercmp <ver1> <ver2>
output values:
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Last edited by karol (2015-01-16 18:50:59)

progandy wrote:
I believe you can use bigpkg if you patch it like this:
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try:
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pkg_list.append(pkg)
parse_package_info(pkg, dir)
except ValueError:
pass
Can you post a diff? I have no idea where to put it.
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File "/usr/bin/bigpkg_patched", line 53, in <module>
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if I try to use the part you posted before the line that says
pkg_list = []
but I still have problems with
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"Phil Grimm" <[email protected]> wrote:
Guys,
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Last edited by dav7 (2008-10-11 13:46:30)

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Last edited by b9anders (2008-10-11 08:11:03)

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jackdmp 1.9.8
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2011 Grame.
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Jack: cleaning up files
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Sorry
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Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
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Thu Aug 23 11:31:23 2012: ALSA: use 2 periods for capture
Thu Aug 23 11:31:23 2012: ALSA: final selected sample format for playback: 32bit integer little-endian
Thu Aug 23 11:31:23 2012: ALSA: use 2 periods for playback
Thu Aug 23 11:31:23 2012: [1m[31mERROR: ALSA: cannot set hardware parameters for playback[0m
Thu Aug 23 11:31:23 2012: [1m[31mERROR: ALSA: cannot configure playback channel[0m
Thu Aug 23 11:31:23 2012: [1m[31mERROR: JackTemporaryException : now quits...[0m
Thu Aug 23 11:31:23 2012: [1m[31mERROR: Cannot initialize driver[0m
Thu Aug 23 11:31:23 2012: [1m[31mERROR: JackServer::Open() failed with -1[0m
Thu Aug 23 11:31:23 2012: [1m[31mERROR: Failed to open server[0m
11:32:54.690 Could not connect to JACK server as client. - Overall operation failed. - Unable to connect to server. Please check the messages window for more info.
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
Ok, let's now uncheck "Enable D-Bus interface" and try again, maybe I'll have more luck. No, it seems I don't.
This is the message log:
11:34:17.340 Patchbay deactivated.
11:34:17.345 Statistics reset.
11:34:17.347 ALSA connection change.
11:34:17.356 JACK is starting...
11:34:17.356 /usr/bin/jackd -dalsa -dhw:0 -r48000 -p1024 -n2
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
11:34:17.361 ALSA connection graph change.
could not open component .so '/usr/lib/jack/jack_firewire.so': libffado.so.2: cannot open shared object file: No such file or directory
could not open driver .so '/usr/lib/jack/jack_firewire.so': libffado.so.2: cannot open shared object file: No such file or directory
jack_get_descriptor returns null for 'jack_firewire.so'
could not open component .so '/usr/lib/jack/jack_firewire.so': libffado.so.2: cannot open shared object file: No such file or directory
jackdmp 1.9.8
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2011 Grame.
jackdmp comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
JACK server starting in realtime mode with priority 10
11:34:17.396 JACK was started with PID=2499.
Jack: Create non RT thread
Jack: ThreadHandler: start
Jack: playback device hw:0
Jack: capture device hw:0
Jack: apparent rate = 48000
Jack: frames per period = 1024
Jack: JackDriver::Open capture_driver_name = hw:0
Jack: JackDriver::Open playback_driver_name = hw:0
Jack: Check protocol client = 8 server = 8
Jack: JackEngine::ClientInternalOpen: name = system
Jack: JackEngine::AllocateRefNum ref = 0
Jack: JackPosixSemaphore::Allocate name = jack_sem.1000_default_system val = 0
Jack: JackEngine::NotifyAddClient: name = system
Jack: JackGraphManager::SetBufferSize size = 1024
Jack: JackConnectionManager::DirectConnect first: ref1 = 0 ref2 = 0
Jack: JackGraphManager::ConnectRefNum cur_index = 0 ref1 = 0 ref2 = 0
Jack: JackDriver::SetupDriverSync driver sem in flush mode
control device hw:0
control device hw:0
audio_reservation_init
Failed to acquire device name : Audio0 error : Device or resource busy
Audio device hw:0 cannot be acquired...
Jack: ~JackDriver
Cannot initialize driver
Jack: no message buffer overruns
Jack: JackPosixThread::Stop
Jack: ThreadHandler: exit
JackServer::Open() failed with -1
Jack: Succeeded in unlocking 82245916 byte memory area
Jack: JackShmMem::delete size = 0 index = 0
Jack: ~JackDriver
Jack: Succeeded in unlocking 1012 byte memory area
Jack: JackShmMem::delete size = 0 index = 1
Jack: cleaning up shared memory
Jack: cleaning up files
Jack: unregistering server `default'
Failed to open server
11:34:17.533 JACK was stopped with exit status=255.
11:34:19.562 Could not connect to JACK server as client. - Overall operation failed. - Unable to connect to server. Please check the messages window for more info.
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
I've tried deleting all jack config files, changing settings and before you ask, I've tried with and without pulseaudio (which got along with Jack just fine before everything broke). It seems to be a d-bus problem at first but it gives me issues with d-bus disabled as well. I've read A LOT of forum posts and mailing lists before posting here and I can tell you that none of the solutions that worked for others worked for me, and many just gave up.
I don't have any audio/drive issues and as I said, my computer used to run Jack2 just fine. The output of cat /proc/asound/cards is
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xf0400000 irq 45
It seems strange to me that jack2 and jack2-dbus act exactly the same way in regards to dbus but dbus is just one of the several problems, it seems. Right now I'm running my music production thanks to a live Ubuntu Studio stick (the horror, I know) and after extensive research I feel I'm out of ideas. I mean, I uninstalled jack and deleted all config files and it still doesn't go back to normal, what can I do? I suspect my problem may be related to improper configuration of something in /etc/ but I didn't touch anything audio-related in ages and as I said, jack used to work with the same configuration. It seems to have problem accepting that my sound card is hw:0, maybe. I don't know, it makes me crazy. Can someone help me? Thanks.
Edit: The problem is solved, checkout my last reply to this thread for the solution.
Last edited by VisionsOf (2012-08-28 11:30:13)

Hi, I'm having a similar issue. I've been using jack2 as the main audio server with pulseaudio routed through it for more than a year with no issues until a couple of weeks ago when after a power failure jack just stopped working.
After double checking my conf (found nothing strange, again, I'm using jack in normal production for over a year and havent touched conf in a while) and downgrading kernels and jack with no success I realized that if I suspended the PC, and tryed to start jack after resuming it, there wasnt any problems at all!!? Jack works!
Something similar happens in my laptop (same setup), but in this case jack fails to start only the first try, on the 2nd try it will start flawlesly.
Could it be related to systemctl?? dbus?? (the same happens with Dbus interface enabled or not)
Pulseaudio? I've read in forums there are some issues between jack and pulseaudio, and in fact I can see pulseaudio “dead” in both situations (jack working and not)
systemctl status pulseaudio
pulseaudio.service
Loaded: error (Reason: No such file or directory)
Active: inactive (dead)
I guess I'm still not getting right the new Systemd method or the pulseaudio method or both
Here's the log of Qjackctl when it fails (same result starting jack from command line)
ERROR: JackProcessSync::LockedTimedWait error usec = 5000000 err = Connection timed out
ERROR: Driver is not running
ERROR: Cannot open client name = dbusapi
ERROR: failed to create dbusapi jack client
17:49:51.668 ALSA connection graph change.
17:49:51.698 ALSA connection graph change.
17:49:58.744 Could not connect to JACK server as client. - Overall operation failed. - Server communication error. Please check the messages window for more info.
Client name = qjackctl conflits with another running client
Any hints will be very welcome!
Cheers!

[SOLVED] Cron doesn't like me :

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