Cornjob Setting

[martin9]

Hi..

I want to run a project after every 1 hour in 24 hours, every days, every weeks, every months. I have set it in this cpanel..but admin continue suspend me (coz need to gap 5 min between 2 corn)..

So I want to know what will be actual setting ? Pls help me.

 

[Anna]

Do you have more then one cron job set? If so what are the settings for the other cron job?

 

[descalzo]

The wrong cornjob setting can cause problems with the kernel (sorry, couldn't resist).

To run a job on the hour, every hour, etc

0 * * * * job

To run a job at 1AM every day, etc

0 1 * * * job

If you put a * in the first position, the job will run once a minute and get you in trouble.

As Anna pointed out, if you have two jobs running every hour on the hour,

0 * * * * jobA
0 * * * * jobB

they overlap and get you in trouble. You have to stagger the times.


You can have three jobs

0 * * * * job1
20 * * * * job2
40 * * * * job3

They run twenty minutes apart and you have no problem

If you have only one cron job and it runs only once a week, you can still get in trouble if that one job is a resource hog.

 

[Danielx386]

will I run into trouble if I do this? I want a job that run every 90 mins

0 * * * * job1
90 * * * * job2
95 * * * * job3

Daniel

 

[Anna]

will I run into trouble if I do this? I want a job that run every 90 mins

0 * * * * job1
90 * * * * job2
95 * * * * job3

Daniel

yes, you could do because every other time the 90 minute cron and the hourly cron would both be running on the hour.

Although I honestly have no idea if setting it to 90 is even possible, I figured it to be interperated as such as the first number (90 in your case) would be read as 90 minutes passed the hour...

 

[martin9]

Ya account Manager I had set 2 jobs and setting was

30 * * * *
30 * * * *


Thanks Account Manager..thanks all...
I am trying that way which u have told.

 

[dawn1980]

I want to run 2 job .
First would be run every one hour and
second would be run 10 min later after 1st job run .

So please tell me what would be syntax ?

 

[descalzo]

0 * * * *  firstJob
10 * * * * secondJob

 

[dawn1980]

Thak you very much descalzo

 

[misson]

Although I honestly have no idea if setting it to 90 is even possible,

It's not. The minute field can only take values in the range 0-59.

 

[slacker3]

you can set up an specific cron job to run every 90 minutes using TWO commands:

 0   */3    * * *   command1
30 1-23/3   * * *   command1