Hiya, never thought of stracing cron itself, will try that tomorrow (is a bit too busy to risk it going down atm). Thanks, Ian On 10/3/05, Mark Belanger <mark_belanger at ltx.com> wrote: > > Ian mu wrote: > > Ok, weirder, thanks for the advice by the way, I guess its isolated it > > somewhat and not where I thought it would be....added the strace, but > > looks like not needed as never gets that far... > > > The next thing I would do is to attach strace to cron just before > it kicks off. Make sure to capture the output - there will be a lot > of it. strace -p PIDofCron -f -o/path/somefile > > You might also look at the cron file with an octal editor to make > sure there are no funny characters in it. Or just create a brand > new one. > > I would also look carefully each directory in the path and > the contents of them as well i.e. > > ls -ld /home > ls -la /home > ls -ld /home/statsman > ls -la /home/statsman > ls -ld /home/statsman/stats > ls -la /home/statsman/stats > > -Mark > > > > > Piped the cron commandline to a file crondebug as mark suggested, its > > created at cron run time, but empty. > > 36 13 * * * > > >/home/statsman/stats/crondebug > > > > For the first line of the run_stats.sh (tried also with #!/bin/bash) > > file it calls I added > > > > echo "stage 1" >> /home/statsman/stats/gendebug > > > > Run it manually from console it echos stage 1, (also echo stage 2 I > > added, then after that the perl script is invoked) fine. > > > > Run from cron it never even does the echo "stage 1" to the file (or at > > least doesn't create it). > > > > So it looks like its either dying on execing the file and not getting > > any further as it never writes the first line of the simple bash script > > or not even trying to call the file? (file gendebug isn't even created). > > > > More puzzled at this moment than I thought (nothing in root mail from > > cron either btw, and rest of crontab seems ok, I leave the line in just > > comment out the line with a single # and it doesn't crash ). > > > > Baffled :), thanks again, Ian > > > > > > > > > > On 10/3/05, *Ingimar Robertsson* <iar at skyrr.is <mailto:iar at skyrr.is>> > > wrote: > > > > You could also check what environment variables the perl and shell > > scripts > > depend upon. Perhaps they are missing in the cron environment (Cron > > jobs > > don't get the whole shell environment, which might explain why it > > does work > > from the shell) > > > > > > On Mon, Oct 03, 2005 at 07:39:48AM -0400, Mark Belanger wrote: > > > Ian mu wrote: > > > > Basically I have a perl script that runs once, first thing every > > > > morning, gathering some stats (currently turned off due to > > problem). > > > > Crontab -l shows the following... > > > > > > > > 00 6 * * * nice /home/statsman/stats/run_stats.sh >/dev/null > > 2>&1 (.sh > > > > file basically sources with full path a config with some vars, > > then runs > > > > the perl script). > > > > > > The first thing I would do to put some echos in run_stats.sh > > > and change > /dev/null to > /path/somefile > > > > > > If you're getting as far as the perl script, put some print > > > statements in it. > > > > > > You might try doing an strace from cron: > > > > > > 00 6 * * * strace -f -oOutputFile /home/statsman/stats/run_stats.sh > > > >/path/somefile 2>&1 > > > > > > -Mark > > > > > > _______________________________________________ > > > CentOS mailing list > > > CentOS at centos.org <mailto:CentOS at centos.org> > > > http://lists.centos.org/mailman/listinfo/centos > > > > > > Bestu kveðjur, > > > > Ingimar > > > > -- > > Ingimar Róbertsson, kerfisstjóri, RHCE EMAIL: iar at skyrr.is > > <mailto:iar at skyrr.is> > > Skýrr hf TEL: +354-5695100 > > Ármúli 2, 108 Reykjavík FAX: +354-5695251 > > http://www.skyrr.is/legal/disclaimer.txt > > _______________________________________________ > > CentOS mailing list > > CentOS at centos.org <mailto:CentOS at centos.org> > > http://lists.centos.org/mailman/listinfo/centos > > > > > > > > ------------------------------------------------------------------------ > > > > _______________________________________________ > > CentOS mailing list > > CentOS at centos.org > > http://lists.centos.org/mailman/listinfo/centos > > > -- > Mark Belanger > LTX Corporation > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20051003/cd89e6f7/attachment-0005.html>