You could try checking dmesg. Sometimes I see things like this in ours: [4585112.266794] Out of memory: Kill process 18584 (perl) score 937 or sacrifice child
[4585112.266842] Killed process 18584 (perl) total-vm:53547100kB, anon-rss:47902052kB, file-rss:0kB On Mon, May 22, 2017 at 9:13 PM, ST Wong (ITSC) <s...@itsc.cuhk.edu.hk> wrote: > Hi, > > Thanks for your advice. > We've done before by writing data read from ssh command to separate log > file. The output simply ends somewhere. Then the Perl script continues > with the rest of the code, e.g. the Perl script prints some headings, then > a table containing lines from the ssh command, and print some footnotes at > the end of script. The output html looks 'normal' except there are fewer > lines in the table. It's unlikely the Perl script aborted. > > Will ask web admin to check Apache log for any hint. > > Thanks again. > > -----Original Message----- > From: André Warnier (tomcat) [mailto:a...@ice-sa.com] > Sent: Monday, May 22, 2017 7:35 PM > To: modperl@perl.apache.org > Subject: Re: Please help: resource limit for running Perl under Apache? > > Hi. > > It sounds like what you need to do is : > add some logging directly in your perl script, to a separate logfile. > (And maybe re-open STDERR to that same logfile). > Then you will see exactly where and why the perl script crashes under > Apache. > Do not forget that when the perl script runs under Apache, it runs under > the same user-id as the Apache webserver. > > On 22.05.2017 12:40, ST Wong (ITSC) wrote: > > Hi, I've a Perl script that does following: > > > > -Ssh to a device and get information, e.g.: open(DEV, "/usr/bin/ssh > > -v > > statuser\@192.168.11.1 sh get client list| "); > > > > -Loop through the result and display as html. > > > > The Perl script can complete without problem when run in bash or in > Apache 2.2. > > > > However, when I put it on a new Apache 2.4 server, the script can't > display all output - > > the output table expected to be 1000 lines now ends at ~300. Checked > that it seems the > > ssh command terminated prematurely. The "while (<DEV>)" loop exists as > there is no more > > input data. The Perl can also complete without problem when run in > bash on the same > > server running Apache 2.4. > > > > I wonder if there is any resource limit for CGI/Perl when running under > Apache 2.4. > > Default OS resource limit looks alright: > > > > stack size (kbytes, -s) 8192 > > > > cpu time (seconds, -t) unlimited > > > > max user processes (-u) 15014 > > > > virtual memory (kbytes, -v) unlimited > > > > Sorry that I'm not web admin and don't have access to Apache logs. > > > > Would anyone please help? Thanks a lot. > > > > Regards > > > > -- John Dunlap *CTO | Lariat * *Direct:* *j...@lariat.co <j...@lariat.co>* *Customer Service:* 877.268.6667 supp...@lariat.co
