Cache problem

[dangari]

Hi all,

I have a running cron job as below:

*/10 * * * * java -classpath "/shared/smsfiles/camps/jean.jar" emailrpts "71.25.24.45" "[e-mail]" "password" >>/dev/null

I would like to change the parameters "71.25.24.45" "[e-mail]" "password" to "51.25.24.40" "[e-mail]" "passwordtwo".

Whenever I change on the crontab and save, the application running seems to still use the old values.

How can I make sure that I clear from the system the old values, and have it pick up the new values immediately?

Thanks in advance.

[shibblez]

What OS?
How are you trying to change the crontab?

[dangari]

What OS?
How are you trying to change the crontab?

Fedora release 11 (Leonidas)

Steps I have followed in changing the crontab:

1.# crontab -e (Hit enter)
2.press I key for(INSERT)
3.Make appropriate change on the line
4.press ESCAPE key
5.:wq (Hit enter)

Going back to view crontab entries, using :

# crontab -l

I see the changes have been saved on the cron.

*/10 * * * * java -classpath "/shared/smsfiles/camps/jean.jar" emailrpts "51.25.24.40" "[e-mail]" "passwordtwo" >>/dev/null

Can anyone please assist in telling me:
1) Why old crontab entries are still maintained for quite a while
2) If so, how can I clear the cache and have the new entries being taken into effect immediately.

Thank you all.

[shibblez]

That looks fine. What I would do now is remove the >>/dev/null and check the output from the command. This should be e-mailed to the user that owns the crontab.

[dangari]

That looks fine. What I would do now is remove the >>/dev/null and check the output from the command. This should be e-mailed to the user that owns the crontab.

We do have some crontab entries that do not have the >>/dev/null.

The main issue is how caching seems to occur and how can one make sure it does not happen upon changing crontab entries?

Someone please shed some light on this.

[shibblez]

I've never known cron to cache old crontabs. What output are you seeing in the e-mail? Does restarting the cron daemon make any difference?

[dangari]

I've never known cron to cache old crontabs. What output are you seeing in the e-mail? Does restarting the cron daemon make any difference?

What I am doing to restart the cron is:

service crond restart

This any good?

[shibblez]

That's how I'd do it - I take it that you get successful stop/start messages - does it fix the problem?

[dangari]

That's how I'd do it - I take it that you get successful stop/start messages - does it fix the problem?

I do get the successful stop/start but it doesn't seem to solve the problem.

Kindly help.

[shibblez]

Is the output being e-mailed?

[dangari]

Is the output being e-mailed?

Seems though that if I reboot the machine, the cache is cleared.
My problem is that this is really not good for the services we run, (frequent rebooting of the machine).