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Type: Bug
Resolution: Not A Defect
Priority: Major
Component/s: core
Labels:
- performance

Similar Issues:

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The startup time on a almost vanilla install is incredible slow.

I am running the jenkins server on a raspberry pi 3 on a SD card. Yes, the flash is slow. Yes, the pi is not strong. But 30 minutes for a basic setup without work being done is not acceptable.

jenkins version: 2.222.3

with the following installed plugins:

plugins:
  - artifactId: configuration-as-code
     source:
       version: 1.39
   - artifactId: ssh-slaves
    source:
      version: 1.31.2
  - artifactId: jdk-tool
    source:
      version: 1.4
  - artifactId: git
    source:
      version: 4.2.2
  - artifactId: job-dsl
    source:
      version: 1.77
  - artifactId: blueocean
    source:
      version: 1.23.1
  - artifactId: ws-cleanup
    source:
      version: 0.38
  - artifactId: docker
    source:
      version: 1.2.0
  - artifactId: credentials-binding
    source:
      version: 1.23
  - artifactId: token-macro
    source:
      version: 2.12
  - artifactId: matrix-project
    source:
      version: 1.16

Here is my startup log (sorry there is no option to disable line breaks...): It takes time from 20:45 to 21:08 for stuff related to "jenkins.InitReactorRunner$1#onAttained".

jenkins | 2020-10-11 20:45:16.578+0000 [id=1] INFO org.eclipse.jetty.util.log.Log#initialized: Logging initialized @104040ms to org.eclipse.jetty.util.log.JavaUtilLog jenkins | 2020-10-11 20:45:18.299+0000 [id=1] INFO winstone.Logger#logInternal: Beginning extraction from war file jenkins | 2020-10-11 20:45:19.640+0000 [id=1] INFO org.eclipse.jetty.server.Server#doStart: jetty-9.4.27.v20200227; built: 2020-02-27T18:37:21.340Z; git: a304fd9f351f337e7c0e2a7c28878dd536149c6c; jvm 1.8.0_212-b04 jenkins | 2020-10-11 20:45:31.179+0000 [id=1] INFO o.e.j.w.StandardDescriptorProcessor#visitServlet: NO JSP Support for /jenkins, did not find org.eclipse.jetty.jsp.JettyJspServlet jenkins | 2020-10-11 20:45:32.575+0000 [id=1] INFO o.e.j.s.s.DefaultSessionIdManager#doStart: DefaultSessionIdManager workerName=node0 jenkins | 2020-10-11 20:45:32.577+0000 [id=1] INFO o.e.j.s.s.DefaultSessionIdManager#doStart: No SessionScavenger set, using defaults jenkins | 2020-10-11 20:45:32.609+0000 [id=1] INFO o.e.j.server.session.HouseKeeper#startScavenging: node0 Scavenging every 660000ms jenkins | 2020-10-11 20:45:56.463+0000 [id=1] INFO hudson.WebAppMain#contextInitialized: Jenkins home directory: /var/jenkins_home found at: EnvVars.masterEnvVars.get("JENKINS_HOME") jenkins | 2020-10-11 20:45:59.002+0000 [id=1] INFO o.e.j.s.handler.ContextHandler#doStart: Started w.@b91815{Jenkins v2.222.3,/jenkins,file:///var/jenkins_home/war/,AVAILABLE}{/var/jenkins_home/war} jenkins | 2020-10-11 20:45:59.207+0000 [id=1] INFO o.e.j.server.AbstractConnector#doStart: Started ServerConnector@115b42e{HTTP/1.1, (http/1.1)}{0.0.0.0:8080} jenkins | 2020-10-11 20:45:59.210+0000 [id=1] INFO org.eclipse.jetty.server.Server#doStart: Started @146676ms jenkins | 2020-10-11 20:45:59.213+0000 [id=18] INFO winstone.Logger#logInternal: Winstone Servlet Engine running: controlPort=disabled jenkins | 2020-10-11 20:58:16.457+0000 [id=34] INFO jenkins.InitReactorRunner$1#onAttained: Started initialization jenkins | 2020-10-11 20:58:37.969+0000 [id=33] INFO jenkins.InitReactorRunner$1#onAttained: Listed all plugins jenkins | 2020-10-11 21:07:26.515+0000 [id=39] INFO jenkins.InitReactorRunner$1#onAttained: Prepared all plugins jenkins | 2020-10-11 21:07:26.734+0000 [id=40] INFO jenkins.InitReactorRunner$1#onAttained: Started all plugins jenkins | 2020-10-11 21:08:42.902+0000 [id=34] INFO jenkins.InitReactorRunner$1#onAttained: Augmented all extensions jenkins | 2020-10-11 21:08:50.733+0000 [id=33] INFO hudson.slaves.SlaveComputer#tryReconnect: Attempting to reconnect buildmachine jenkins | 2020-10-11 21:08:50.996+0000 [id=38] INFO jenkins.InitReactorRunner$1#onAttained: System config loaded jenkins | [10/11/20 21:11:12] SSH Launch of ...

===================

Here is an update. The startup time is now acceptable 2 minutes. On better hardware it should be even better.

Changes made on the same hardware:

Updated jenkins from 2.222 to 2.249.
Updated java on master and agent from java 8 to java 11.
Updated docker base image for jenkins from alpine to debian buster slim.

jenkins             | Running from: /usr/share/jenkins/jenkins.warjenkins             | Running from: /usr/share/jenkins/jenkins.warjenkins             | webroot: EnvVars.masterEnvVars.get("JENKINS_HOME")jenkins             | 2020-10-13 20:40:11.583+0000 [id=1] INFO org.eclipse.jetty.util.log.Log#initialized: Logging initialized @4738ms to org.eclipse.jetty.util.log.JavaUtilLogjenkins             | 2020-10-13 20:40:12.196+0000 [id=1] INFO winstone.Logger#logInternal: Beginning extraction from war filejenkins             | 2020-10-13 20:40:24.664+0000 [id=1] INFO org.eclipse.jetty.server.Server#doStart: jetty-9.4.30.v20200611; built: 2020-06-11T12:34:51.929Z; git: 271836e4c1f4612f12b7bb13ef5a92a927634b0d; jvm 11.0.8+10-post-Debian-1deb10u1jenkins             | 2020-10-13 20:40:27.766+0000 [id=1] INFO o.e.j.w.StandardDescriptorProcessor#visitServlet: NO JSP Support for /jenkins, did not find org.eclipse.jetty.jsp.JettyJspServletjenkins             | 2020-10-13 20:40:28.930+0000 [id=1] INFO o.e.j.s.s.DefaultSessionIdManager#doStart: DefaultSessionIdManager workerName=node0jenkins             | 2020-10-13 20:40:28.931+0000 [id=1] INFO o.e.j.s.s.DefaultSessionIdManager#doStart: No SessionScavenger set, using defaultsjenkins             | 2020-10-13 20:40:28.955+0000 [id=1] INFO o.e.j.server.session.HouseKeeper#startScavenging: node0 Scavenging every 600000msjenkins             | WARNING: An illegal reflective access operation has occurredjenkins             | WARNING: Illegal reflective access by com.thoughtworks.xstream.core.util.Fields (file:/var/jenkins_home/war/WEB-INF/lib/xstream-1.4.7-jenkins-1.jar) to field java.util.TreeMap.comparatorjenkins             | WARNING: Please consider reporting this to the maintainers of com.thoughtworks.xstream.core.util.Fieldsjenkins             | WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operationsjenkins             | WARNING: All illegal access operations will be denied in a future releasejenkins             | 2020-10-13 20:40:31.615+0000 [id=1] INFO hudson.WebAppMain#contextInitialized: Jenkins home directory: /var/jenkins_home found at: EnvVars.masterEnvVars.get("JENKINS_HOME")jenkins             | 2020-10-13 20:40:33.750+0000 [id=1] INFO o.e.j.s.handler.ContextHandler#doStart: Started w.@1592946{Jenkins v2.249.2,/jenkins,file:///var/jenkins_home/war/,AVAILABLE}{/var/jenkins_home/war}jenkins             | 2020-10-13 20:40:33.911+0000 [id=1] INFO o.e.j.server.AbstractConnector#doStart: Started ServerConnector@17ff809{HTTP/1.1, (http/1.1)}{0.0.0.0:8080}jenkins             | 2020-10-13 20:40:33.914+0000 [id=1] INFO org.eclipse.jetty.server.Server#doStart: Started @27087msjenkins             | 2020-10-13 20:40:33.948+0000 [id=22] INFO winstone.Logger#logInternal: Winstone Servlet Engine running: controlPort=disabledjenkins             | 2020-10-13 20:40:36.256+0000 [id=28] INFO jenkins.InitReactorRunner$1#onAttained: Started initializationjenkins             | 2020-10-13 20:40:55.723+0000 [id=27] INFO jenkins.InitReactorRunner$1#onAttained: Listed all pluginsjenkins             | 2020-10-13 20:41:46.936+0000 [id=30] INFO jenkins.InitReactorRunner$1#onAttained: Prepared all pluginsjenkins             | 2020-10-13 20:41:46.985+0000 [id=29] INFO jenkins.InitReactorRunner$1#onAttained: Started all pluginsjenkins             | 2020-10-13 20:41:55.928+0000 [id=31] INFO jenkins.InitReactorRunner$1#onAttained: Augmented all extensionsjenkins             | 2020-10-13 20:41:57.060+0000 [id=32] INFO hudson.slaves.SlaveComputer#tryReconnect: Attempting to reconnect buildmachinejenkins             | 2020-10-13 20:41:57.101+0000 [id=34] INFO jenkins.InitReactorRunner$1#onAttained: System config loadedjenkins             | 2020-10-13 20:42:11.731+0000 [id=28] INFO o.s.c.s.AbstractApplicationContext#prepareRefresh: Refreshing org.springframework.web.context.support.StaticWebApplicationContext@14c33f7: display name [Root WebApplicationContext]; startup date [Tue Oct 13 20:42:11 UTC 2020]; root of context hierarchyjenkins             | 2020-10-13 20:42:11.733+0000 [id=28] INFO o.s.c.s.AbstractApplicationContext#obtainFreshBeanFactory: Bean factory for application context [org.springframework.web.context.support.StaticWebApplicationContext@14c33f7]: org.springframework.beans.factory.support.DefaultListableBeanFactory@cc97d6jenkins             | 2020-10-13 20:42:11.816+0000 [id=28] INFO o.s.b.f.s.DefaultListableBeanFactory#preInstantiateSingletons: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@cc97d6: defining beans [authenticationManager]; root of factory hierarchyjenkins             | 2020-10-13 20:42:13.089+0000 [id=28] INFO o.s.c.s.AbstractApplicationContext#prepareRefresh: Refreshing org.springframework.web.context.support.StaticWebApplicationContext@15eef08: display name [Root WebApplicationContext]; startup date [Tue Oct 13 20:42:13 UTC 2020]; root of context hierarchyjenkins             | 2020-10-13 20:42:13.091+0000 [id=28] INFO o.s.c.s.AbstractApplicationContext#obtainFreshBeanFactory: Bean factory for application context [org.springframework.web.context.support.StaticWebApplicationContext@15eef08]: org.springframework.beans.factory.support.DefaultListableBeanFactory@1029f25jenkins             | 2020-10-13 20:42:13.095+0000 [id=28] INFO o.s.b.f.s.DefaultListableBeanFactory#preInstantiateSingletons: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@1029f25: defining beans [filter,legacy]; root of factory hierarchyjenkins             | [10/13/20 20:42:15] SSH Launch of buildmachine on 192.168.2.220 completed in 17,262 ms

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