Need help on tomcat restart via cronjob

SriniK has asked for the wisdom of the Perl Monks concerning the following question:

Hi,
I'm using perl script to restart the tomcat, the command which i am using given below.

$tomcat_status=`sudo /****/***/bin/catalina.sh start`;
print "$date: $tomcat_status\n";
[download]

Output

Wed Oct 30 05:35:14 EDT 2013: Using CATALINA_BASE:   /****/****
Using CATALINA_HOME:   /****/****
Using CATALINA_TMPDIR: /****/****/temp
Using JRE_HOME:        /usr
Using CLASSPATH:       /****/****/bin/bootstrap.jar:/****/****/bin/tom
+cat-juli.jar
[download]

Everything working fine while running via putty. But when via cron it not tomcat not restarted and there is no output as well.
I have imported the all bash environmental variables to the perl program but still its not working
Need your help on this.

Thanks
SRI

Comment on Need help on tomcat restart via cronjob Select or Download Code

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Re: Need help on tomcat restart via cronjob by derby (Abbot) on Oct 30, 2013 at 10:27 UTC
Probably not a perl problem but either a sudo permission problem or an environment variable problem. What account is kicking off the crontab? A users or roots? If a user, does that user have sudo permissions -- if it's roots crontab, you don't need to sudo at all. There may be environment variables (JAVA_HOME and PATH come to mind) that are set when you kick off from the command line but are not present in the cron environment. Tomcat (catalina.sh) will invoke the setenv.sh script in order to set environment variables. By default that script is either blank or not there. Just create it and and your needed env settings there. -derby	[reply]
Re^2: Need help on tomcat restart via cronjob by SriniK (Beadle) on Oct 30, 2013 at 10:46 UTC
I am running the script from root user the below are the evs from the script `HOME : /root CVS_RSH : ssh DISPLAY : :99 LESSOPEN : \|/usr/bin/lesspipe.sh MAIL : /var/spool/mail/root PWD : /root LANG : en_US.UTF-8 USER : root G_BROKEN_F: 1 LOGNAME : root SHLVL : 2 HOSTNAME : *... JAVA : /usr/bin/ _ : /bin/env PATH : /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/b +in:/root/bin SHELL : /bin/sh HISTSIZE : 1000 HISTCONTRO: ignoredups` [download]	[reply] [d/l]
Re^3: Need help on tomcat restart via cronjob (provoke errors) by Anonymous Monk on Oct 30, 2013 at 11:42 UTC
I am running the script from root user the below are the evs from the script What is the error message? Do everything you can think of to provoke an error message, and have cron report it to you Re^3: DBD::mysql fail install check (crontab debugging troubleshooting DYLD_LIBRARY_PATH ldd otool ...)	[reply]
Re: Need help on tomcat restart via cronjob by McA (Priest) on Oct 30, 2013 at 10:21 UTC
Hi, IMHO not really a Perl related question. It's more one of the recurring questions, why a script is not working under cron when it is working in a terminal. And this has to do almost always with environment variables not being set properly while running under cron. IMHO the simplest solution for that is calling the job in cron this way: `bash -l -c "perl $path_to_perlscript/someperlscript.pl arg1 arg2"` [download] UPDATE: This shall show the idea behind. It depends on the shell used. Best regards McA	[reply] [d/l]