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  1. Jenkins
  2. JENKINS-15027

Cron expression 'H H * * *' does not work as advertised

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    Details

    • Type: Bug
    • Status: Resolved (View Workflow)
    • Priority: Minor
    • Resolution: Fixed
    • Component/s: core
    • Labels:
    • Similar Issues:

      Description

      Setting cron expression 'H H * * *' is supposed to generate a "random" time for the job to spread load. However, on 1.478 it appears to simply generate "0 0 * * *".

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          is related to

          Improvement - An improvement or enhancement to an existing feature or task. JENKINS-17311 Expand and encourage use of hash syntax in crontabs

          • Major - Major loss of function.
          • Resolved

            Activity

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            danny Danny Yates created issue -
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            ohtake_tomohiro OHTAKE Tomohiro added a comment -

            JAVA_ARGS "-Dhudson.scheduler.BaseParser.hash=true" is required to enabled 'H' token. It seems that there is no description about that.

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            ohtake_tomohiro OHTAKE Tomohiro added a comment - JAVA_ARGS "-Dhudson.scheduler.BaseParser.hash=true" is required to enabled 'H' token. It seems that there is no description about that.
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            danny Danny Yates added a comment -

            Thanks. I haven't tried this yet, but it should definitely be in the documentation!

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            danny Danny Yates added a comment - Thanks. I haven't tried this yet, but it should definitely be in the documentation!
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            snekse Derek E added a comment -

            What is a good way to test this? Is this true for 1.480 as well?

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            snekse Derek E added a comment - What is a good way to test this? Is this true for 1.480 as well?
            evernat evernat made changes -
            Field Original Value New Value
            Link This issue is related to JENKINS-17311 [ JENKINS-17311 ]
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            evernat evernat added a comment -

            This was fixed by JENKINS-17311. The H syntax is now enabled by default and does not need to add a system property.

            See changes in https://github.com/jenkinsci/jenkins/pull/743/files

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            evernat evernat added a comment - This was fixed by JENKINS-17311 . The H syntax is now enabled by default and does not need to add a system property. See changes in https://github.com/jenkinsci/jenkins/pull/743/files
            evernat evernat made changes -
            Resolution Fixed [ 1 ]
            Status Open [ 1 ] Resolved [ 5 ]
            jglick Jesse Glick made changes -
            Labels cron, cron
            rtyler R. Tyler Croy made changes -
            Workflow JNJira [ 145746 ] JNJira + In-Review [ 191609 ]

              People

              Assignee:
              Unassigned Unassigned
              Reporter:
              danny Danny Yates
              Votes:
              2 Vote for this issue
              Watchers:
              5 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved: