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  1. Jenkins
  2. JENKINS-48348

If task can be run only on master, use shortcut

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        relates to

        Improvement - An improvement or enhancement to an existing feature or task. JENKINS-36547 Queue.Task.getFullDisplayName is a poor choice of key for LoadBalancer.CONSISTENT_HASH

        • Major - Major loss of function.
        • Resolved

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          oleg_nenashev Oleg Nenashev added a comment -

          It has been integrated towards 2.93

          oleg_nenashev Oleg Nenashev added a comment - It has been integrated towards 2.93
          danielbeck Daniel Beck added a comment -

          I point out a possible regression in very unusual label setups in a recent PR comment. No opinion re LTS fitness.

          danielbeck Daniel Beck added a comment - I point out a possible regression in very unusual label setups in a recent PR comment. No opinion re LTS fitness.
          scm_issue_link SCM/JIRA link daemon added a comment -

          Code changed in jenkins
          User: Alexander Akbashev
          Path:
          core/src/main/java/hudson/model/Queue.java
          http://jenkins-ci.org/commit/jenkins/eb41a7bb0a58474a0fc627ca1cb8f2002ad26b47
          Log:
          JENKINS-48348 If task can be run only on master, use shortcut

          Currently Jenkins to fire WorkflowJob re-calculates the ConstistentHash
          for entire cluster even if there is no nodes were updated. If cluster is
          big enough (>100 nodes), it becomes a problem, because MD5 is quite
          expensive itself plus all this logic comes with high memory footprint.

          Using the knowledge that WorkflowJob can be executed only on Jenkins master,
          we can create a shortcut that does not do expensive calculation and just
          returns Runnable or `null`.

          (cherry picked from commit 00ccd23f6441a55bfd625660911d4bc79c7578ba)

          scm_issue_link SCM/JIRA link daemon added a comment - Code changed in jenkins User: Alexander Akbashev Path: core/src/main/java/hudson/model/Queue.java http://jenkins-ci.org/commit/jenkins/eb41a7bb0a58474a0fc627ca1cb8f2002ad26b47 Log: JENKINS-48348 If task can be run only on master, use shortcut Currently Jenkins to fire WorkflowJob re-calculates the ConstistentHash for entire cluster even if there is no nodes were updated. If cluster is big enough (>100 nodes), it becomes a problem, because MD5 is quite expensive itself plus all this logic comes with high memory footprint. Using the knowledge that WorkflowJob can be executed only on Jenkins master, we can create a shortcut that does not do expensive calculation and just returns Runnable or `null`. (cherry picked from commit 00ccd23f6441a55bfd625660911d4bc79c7578ba)

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            oleg_nenashev Oleg Nenashev
            jimilian Alexander A
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