Scheduling tasks in Jenkins

To schedule a cron job every 5mins you need to define the cron settings like this: */5 * * * *

*/5 * * * * means every 5 minutes

5 * * * * means the 5th minute of every hour

 

Jenkins lets you set up multiple times, separated by line breaks.  If you need it to build daily at 7am, along with every Sunday at 4pm, the below works well  H 7 * * * H 16 * * 0   use */5 * * * * for every 5mins   By setting the schedule period to 15 13 * * * you tell jenkins to schedule the build every day of every month of every year at the 15th minute of the 13th hour of the day. What Jenkins used is a cron expression, the different fields are : 1.  MINUTES Minutes in one hour (0-59) 2.  HOURS   Hours in one day (0-23) 3.  DAYMONTH    Day in a month (1-31) 4.  MONTH   Month in a year (1-12) 5.  DAYWEEK Day of the week (0-7) where 0 and 7 are sunday If you want to shedule your build every 5 minutes, this will do the job : */5 * * * * If you want to shedule your build every day at 8h00, this will do the job : 0 8 * * *  To allow periodically scheduled tasks to produce even load on the system, the symbol H (for “hash”) should be used wherever possible. For example, using 0 0 * * * for a dozen daily jobs will cause a large spike at midnight. In contrast, using H H * * * would still execute each job once a day, but not all at the same time, better using limited resources. Note also that : The H symbol can be thought of as a random value over a range, but it actually is a hash of the job name, not a random function, so that the value remains stable for any given project