Multiple crond instances

[T.C.]

Hi,
I've a strange problem since a couple of months. By now I'm running WHM 11.48.2 (build 3)
I've multiple crond instances running so cron run multiple times at the same time (checked with ps -aux| grep crond).
I've already checked that cron aren't registered more than once.
If I kill the processes and I keep only one instance everything works fine for sometime (maybe hours or days).
Is there a way to solve the problem or at least to force crond process to run as unique instance?

Thanks for your help

 

[24x7ss]

Hello,

I don't think you will be able to do that as multiple crons are running at the same time. You might want to give a thought on changing time.

 

[T.C.]

I DON'T want to run the cron multiple time. It's exactly the opposite.

 

[T.C.]

Anyone have run into this issue?

 

[Infopro]

What cron is it specifically that's running?

 

[T.C.]

Cron runs once a day a command line application written with Laravel (php framework).
I've already checked that is not a problem related to php app.

 

[Infopro]

But there is a problem, its running multiple instances.

 

[T.C.]

Application run multiple times because crond daemon run multiple times. A sstated in my first post if I run ps aux |grep crond I see something similar to this, i.e. multiple instances created many days ago. And if I kill the processes sometimes later they comes back

root@cloud01 [/home/admin2]# ps aux |grep crond
root 18680 06:32 crond
root 7200 Mar 05 crond
root 11108 Mar 13 crond

 

[T.C.]

I've tried the following, and it seems it works (since 3 days at least):
I killed all the crond instances with kill PROCESS_ID
I waited for 5 minutes (the time chksrvd needs to do service checks)
Crond was started by chksrvd

I'll continue to monitor the situation, if everything will continue to work fine I consider the problem solved