Configure cron job to run every 15 minutes on Jenkins

Question

How can I run a cron job every 15 mins on Jenkins   This is what I ve tried     On Jenkins I have a job set to run every 15 mins using this cron syntax     14           But the job executes every hour instead of 15 mins   I m receiving a warning about the format of the cron syntax     Spread load evenly by using    H            rather than    14              Could this be the reason why the cron job executes every hour instead of 15 mins

User · Accepted Answer

Your syntax is slightly wrong   Say     15         command        -- gt     15  would imply every 15 minutes      indicates that the cron expression matches for all values of the field     describes increments of ranges

User · Answer

1  Your cron is wrong  If you want to run job every 15 mins on Jenkins use this   H 15           2  Warning from Jenkins Spread load evenly by using           rather than           came with JENKINS-17311      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    Examples    H 15         - every fifteen minutes  perhaps at  07   22   37   52   H 0-29  10         - every ten minutes in the first half of every hour  three times  perhaps at  04   14   24  H 9-16 2     1-5 - once every two hours every weekday  perhaps at 10 38 AM  12 38 PM  2 38 PM  4 38 PM  H H 1 15 1-11   - once a day on the 1st and 15th of every month except December

User · Answer

It should be     15          your command or whatever

[unix] Configure cron job to run every 15 minutes on Jenkins

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