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  1. Jenkins
  2. JENKINS-63952

Incorrect visualization of matrix skipped stages in blue ocean

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      Description

      The repro is a simple jenkinsfile:

      PROPS = [
          'a': true,
          'b': false,
          'c': true
      ]
      
      pipeline {
          agent none
          stages {
              stage('Main') {
                  matrix {
                      axes {
                          axis {
                              name 'APP'
                              values 'a', 'b', 'c'
                          }
                      }
                      stages {
                          stage('first') {
                              when {
                                  expression {
                                      return PROPS[APP]
                                  }
                              }
                              steps {
                                  echo APP
                              }
                          }
                      }
                  }
              }
          }
      }
      

      It is executed correctly, as is indicated by the job output:

      Running in Durability level: MAX_SURVIVABILITY
      [Pipeline] Start of Pipeline
      [Pipeline] stage (hide)
      [Pipeline] { (Main)
      [Pipeline] parallel
      [Pipeline] { (Branch: Matrix - APP = 'a')
      [Pipeline] { (Branch: Matrix - APP = 'b')
      [Pipeline] { (Branch: Matrix - APP = 'c')
      [Pipeline] stage
      [Pipeline] { (Matrix - APP = 'a')
      [Pipeline] stage
      [Pipeline] { (Matrix - APP = 'b')
      [Pipeline] stage
      [Pipeline] { (Matrix - APP = 'c')
      [Pipeline] withEnv
      [Pipeline] {
      [Pipeline] withEnv
      [Pipeline] {
      [Pipeline] withEnv
      [Pipeline] {
      [Pipeline] stage
      [Pipeline] { (first)
      [Pipeline] stage
      [Pipeline] { (first)
      [Pipeline] stage
      [Pipeline] { (first)
      Stage "first" skipped due to when conditional
      [Pipeline] }
      [Pipeline] // stage
      [Pipeline] }
      [Pipeline] echo
      a
      [Pipeline] }
      [Pipeline] echo
      c
      [Pipeline] }
      [Pipeline] // withEnv
      [Pipeline] }
      [Pipeline] // stage
      [Pipeline] // stage
      [Pipeline] }
      [Pipeline] }
      [Pipeline] // stage
      [Pipeline] }
      [Pipeline] // withEnv
      [Pipeline] // withEnv
      [Pipeline] }
      [Pipeline] }
      [Pipeline] // stage
      [Pipeline] // stage
      [Pipeline] }
      [Pipeline] }
      [Pipeline] // parallel
      [Pipeline] }
      [Pipeline] // stage
      [Pipeline] End of Pipeline
      Finished: SUCCESS
      

      However, it is visualized incorrectly both in blue-ocean and standard pipeline view. Basically, both a and b branches are visualized as not-executed, a as skipped, b as not built. In reality, a was executed.

      When we put there a random sleep before each parallel branch, the visualization is correct. This is a real problem with some of our pipelines, this is just a toy example how to demonstrate it.

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            Assignee:
            Unassigned Unassigned
            Reporter:
            sebek_dbg Marcel Sebek
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              Dates

              Created:
              Updated: