Glance output

[Smirjit Singh]

Hi,

Whenever I am trying to execute following command line from any shell script then I am getting desired output. But when I am trying to execute the same script from remote shell or cron then I am not getting output.

Command line is.
/opt/perf/bin/glance -j 1 -iterations 2 -i -f /tmp/glance.out > /dev/null 2>&1

Do glannce need any shell during execution ?

Through glance we can measure utilization. Like it showw Mem usage is 60%. But if I want to get same output without glance then how I can get it ?

[S.K. Chan]

If you want to run glance using cron, the variable TERM must be exported because cron does not set that for you. Try to put your glance statement in a script file like so ..

#!/usr/bin/ksh
export TERM=hp
/opt/perf/bin/glance -j 1 -iterations 2 -i -f /tmp/glance.out > /dev/null 2>&1

Then run that script file in your cron. That should work for you. The other tool you can use to find out your memory usage is "vmstat". For example ..

# vmstat -n 1 1
==> Look for "avm" and "free" column. It reports in 4kb page size. The approximate free memory would be the value in "free" multiply by 4 gives the result in KBytes. Do a "man vmstat" for details. Using ..

# glance -m
gives you a better breakdown of memory utilization.

[Smirjit Singh]

Hi Chan,

Thanks for your reply.

But TERM=hp did not help to resolve the problem.

Thanks.

Regards.

Sandip

[Smirjit Singh]

Hi Chan,

Thanks for your reply.

But TERM=hp did not help to resolve the problem.

Thanks.

Regards.

Smirjit

[Martin Johnson]

You are redirecting standard error to /dev/null, so you have no idea what kind of error is occurring. Stop the redirection and run the job in cron again.


Marty

[Rodney Hills]

Since you are writing to the same file over and over (/tmp/glance.out). Is it possible the permissions/owner on the file are different than what the "cron" launched job is defined with?

my 2 cents

-- Rod Hills