How to use the UNIX crontab entry for scheduling Clarity PPM jobs

Document ID : KB000009919
Last Modified Date : 11/04/2019
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Introduction:

This article will help with the following job scheduling questions:

  1. How can we use the crontab entry for scheduling Clarity PPM jobs?
  2. Why is the job schedule not running at the expected times?
  3. How can I set my job to run on a regular reoccurring timeline, such as running the Time Slicing job every minute?
Instructions:

Step 1: Navigate to the Set Recurrence link for the job:

  1. In Clarity PPM, go to Home->Reports and Jobs->Jobs
  2. Click on the job (Example Time Slicing)
  3. Click the 'Set Recurrence' link
  4. Click the radio button next to 'Use Unix Crontab entry format'

Step 2: There are 5 placeholders to be entered in the 'Use Unix Crontab entry format', each separated by a space.

1. The 1st argument denotes the minutes of the hour. (0 - 59)

2. The 2nd argument denotes the hour of the day.     (0 - 23)

3. The 3rd argument denotes the day of the month.    (1 - 31)

4. The 4th argument denotes the month of the year.   (1 - 12)

   1 - January
   2  - February
   3  - March
   4  - April
   5  - May
   6  - June
   7  - July
   8  - August
   9  - September
   10 - October
   11 - November
   12 - December

5. The 5th argument denotes the day of the week.

   0 - Sunday
   1 - Monday
   2 - Tuesday
   3 - Wednesday
   4 - Thursday
   5 - Friday
   6 - Saturday
 

Examples:

Run every minute:      * * * * *Run every 5 minutes: */5 * * * *

Run the 30th minute of the specified hours: 30 7,11,15,17 * * *

Run the 15th,30th minute of the specified hours: 15,30 7,11,15,17 * * *

    Run certain hours of the days: * 3-22 * * *

    Run every 1st of the month at 12:15 AM 
    15 0 1 1,2,3,4,5,6,7,8,9,10,11,12 *

    Run split schedule, e.g. Run every minute during certain hours, run every 5 minutes during another set of hours
    a. * 6-22 * * * 
    b. */5 23,0,1,2,3,4,5,6 * * *
    Notes: Use the "Recur Until" to set a to run until a particular date

    Step 3: Save your changes

    1. In the recurrence pop up window, click Save and Return
    2. Click Submit to schedule the job
    Additional Information:

    Articles:
    https://communities.ca.com/message/241722838#241722838
    PPM Tech Tip: How should the main PPM jobs be scheduled?