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-   Solaris / OpenSolaris (https://www.linuxquestions.org/questions/solaris-opensolaris-20/)
-   -   cannot start cron; FIFO exists (https://www.linuxquestions.org/questions/solaris-opensolaris-20/cannot-start-cron%3B-fifo-exists-291522/)

deverest 02-17-2005 03:33 PM
cannot start cron; FIFO exists
 
i am running solaris 5.7 on X86 platform, when I try to start cron, I get the error:

cannot start cron; FIFO exists
CRON aborted

Any Ideas?
I am not getitng backups while cron is down.

Thanks

jlliagre 02-17-2005 03:48 PM
Have you checked cron isn't already running ?

deverest 02-17-2005 04:27 PM
cron is running, but i receive the same error (cannot start cron; FIFO exists) when issuing the stop command.

jlliagre 02-18-2005 01:19 AM
What stop command ?
cron is designed to be started once and run "forever".

deverest 02-18-2005 04:42 AM
I was runing /usr/sbin/crond stop

I igurd out the issue....i swapped out a box a week ago and a script in cron has been attempting to call this server every 30 min, the result, cron was busy calling a non-existent host and ignoring other tasks, such as my backups.

thanks for all the help.

jlliagre 02-18-2005 06:57 AM
There's no /usr/sbin/crond command, I think you mean /usr/sbin/cron.
Anyway cron takes no argument (stop or other).

deverest 02-18-2005 07:12 AM
good to know....so there is no way to restart cron after it has been started? can cron be killed using the pid?

jlliagre 02-18-2005 07:19 AM
There's never a need to restart cron, as it is build to run forever and it has no bugs ;)

If you need to have cron rereading its configuration files, use the contab command (e.g.: "crontab -e").

deverest 02-18-2005 07:27 AM
Thanks.....that command (crontab -e) hangs, i need to coment out an entry but the display hangs and i end up killing the session...big problems

jlliagre 02-18-2005 08:29 AM
What do you mean by hangs ?
You should first read man pages and not blindly enter commands suggested by people you do not know ...

Well, I think your EDITOR variable is not set, so "crontab -e" brings you in the good old 'ed' editor which is not a user friendlyness model.

Try:
export EDITOR=vi
and start again.

deverest 02-18-2005 08:38 AM
when i type crontab -e, nothing comes up. on my other servers i am able to edit the cron file, but i get nothing here, just black screen, after a few moments , i need to ctrl c to get a command prompt back.



my default editor is already vi

jlliagre 02-18-2005 10:10 AM
Try
Code:
truss -f crontab -e
to see where it hangs

(=AA=) 10-10-2005 07:17 AM
I am having the same problem.
Cron has for some reason stopped running.

crontab -l displays the cronjobs.
crontab -e causes it to hang.


Code:
# crontab -e               
1843

I then have to hit CTRL-D to exit and get the following message when I do.
"The crontab file was not changed."




weird ?

(=AA=) 10-10-2005 07:28 AM
ok... truss -f just spat out a ton of info but nothing that means a whole lot to me ?


It ends like this

Code:
11387:  write(3, " v / n u l l  2 > & 1\0".., 512)    = 512
11387:  read(4, 0x0002B668, 2048)                      = 0
11387:  close(4)                                        = 0
1843
11387:  write(1, " 1 8 4 3\n", 5)                      = 5
11383:  waitid(P_PID, 11385, 0xFFBFF5D8, WEXITED|WTRAPPED|_WNOCHLD) (sleeping...)
11385:  waitid(P_PID, 11387, 0xFFBFFAF0, WEXITED|WTRAPPED|WNOWAIT) (sleeping...)
11387:  read(0, 0xFFBFFBF7, 1)          (sleeping...)

jlliagre 10-10-2005 10:49 AM
Read again my previous answers, there is no problem with your "crontab -e" output.


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