How do I schedule job periodically in Jenkins

Question

I want a job to run periodically after every hour. From the configure job there is one checkbox called build periodically. In that I have to enter an expression for the job. What is the format for this expression? Is the procedure that I am following correct?

Answer 1

I think the expression * 1 * * * should work if you want to run the job at every hour of the day. let me explain you the meaning of each notation.

* means any value

Minutes in one hour (0-59)

Hours in one day (0-23)

Day in a month (1-31)

Month in a year (1-12)

Day of the week (0-7)

Answer 2

The format is as follows:

MINUTE (0-59), HOUR (0-23), DAY (1-31), MONTH (1-12), DAY OF THE WEEK (0-6)

The letter H, representing the word Hash can be inserted instead of any of the values. It will calculate the parameter based on the hash code of you project name.

This is so that if you are building several projects on your build machine at the same time, let’s say midnight each day, they do not all start their build execution at the same time. Each project starts its execution at a different minute depending on its hash code.

You can also specify the value to be between numbers, i.e. H(0,30) will return the hash code of the project where the possible hashes are 0-30.

For Example:

Start build daily in the late afternoon between 4:00 p.m. - 4:59 p.m. or 16:00 -16:59 depending on the projects hash: H 16 * * 1-5