Jenkins on Mac OS X is slow and crashes

Question

I've installed Jenkins on an old Mac Mini (2006), and when I launch it via:

sudo launchctl load /Library/LaunchDaemons/org.jenkins-ci.plist

It starts up and runs, but after some time it stops working (meaning that the browser will just give me a blank white screen)

But when I try to run it via this command (from /Applications/Jenkins):

 java -jar jenkins.war

Then I get this error in terminal:

webroot: $user.home/.jenkins
Jul 25, 2014 2:23:44 PM winstone.Logger logInternal
INFO: Beginning extraction from war file
Jul 25, 2014 2:23:48 PM org.eclipse.jetty.util.log.JavaUtilLog info
INFO: jetty-8.y.z-SNAPSHOT
Jul 25, 2014 2:23:52 PM org.eclipse.jetty.util.log.JavaUtilLog info
INFO: NO JSP Support for , did not find org.apache.jasper.servlet.JspServlet
Jenkins home directory: /Users/echoqa/.jenkins found at: $user.home/.jenkins
Jul 25, 2014 2:23:53 PM org.eclipse.jetty.util.log.JavaUtilLog warn
WARNING: FAILED SelectChannelConnector@0.0.0.0:8080: java.net.BindException: Address already in use
java.net.BindException: Address already in use
    at sun.nio.ch.Net.bind(Native Method)
    at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:124)
    at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:59)
    at org.eclipse.jetty.server.nio.SelectChannelConnector.open(SelectChannelConnector.java:187)
    at org.eclipse.jetty.server.AbstractConnector.doStart(AbstractConnector.java:316)
    at org.eclipse.jetty.server.nio.SelectChannelConnector.doStart(SelectChannelConnector.java:265)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
    at org.eclipse.jetty.server.Server.doStart(Server.java:293)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
    at winstone.Launcher.<init>(Launcher.java:154)
    at winstone.Launcher.main(Launcher.java:354)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at Main._main(Main.java:293)
    at Main.main(Main.java:98)
Jul 25, 2014 2:23:53 PM org.eclipse.jetty.util.log.JavaUtilLog warn
WARNING: FAILED org.eclipse.jetty.server.Server@45c1f5b2: java.net.BindException: Address already in use
java.net.BindException: Address already in use
    at sun.nio.ch.Net.bind(Native Method)
    at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:124)
    at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:59)
    at org.eclipse.jetty.server.nio.SelectChannelConnector.open(SelectChannelConnector.java:187)
    at org.eclipse.jetty.server.AbstractConnector.doStart(AbstractConnector.java:316)
    at org.eclipse.jetty.server.nio.SelectChannelConnector.doStart(SelectChannelConnector.java:265)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
    at org.eclipse.jetty.server.Server.doStart(Server.java:293)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
    at winstone.Launcher.<init>(Launcher.java:154)
    at winstone.Launcher.main(Launcher.java:354)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at Main._main(Main.java:293)
    at Main.main(Main.java:98)
Jul 25, 2014 2:23:53 PM org.eclipse.jetty.util.log.JavaUtilLog info
INFO: stopped w.{,file:/Users/echoqa/.jenkins/war/},/Users/echoqa/.jenkins/war
Jul 25, 2014 2:23:54 PM winstone.Logger logInternal
INFO: Winstone shutdown successfully
Jul 25, 2014 2:23:54 PM winstone.Logger logInternal
SEVERE: Container startup failed
java.io.IOException: Failed to start Jetty
    at winstone.Launcher.<init>(Launcher.java:156)
    at winstone.Launcher.main(Launcher.java:354)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at Main._main(Main.java:293)
    at Main.main(Main.java:98)
Caused by: java.net.BindException: Address already in use
    at sun.nio.ch.Net.bind(Native Method)
    at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:124)
    at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:59)
    at org.eclipse.jetty.server.nio.SelectChannelConnector.open(SelectChannelConnector.java:187)
    at org.eclipse.jetty.server.AbstractConnector.doStart(AbstractConnector.java:316)
    at org.eclipse.jetty.server.nio.SelectChannelConnector.doStart(SelectChannelConnector.java:265)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
    at org.eclipse.jetty.server.Server.doStart(Server.java:293)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
    at winstone.Launcher.<init>(Launcher.java:154)
    ... 7 more
Jul 25, 2014 2:23:54 PM jenkins.InitReactorRunner$1 onAttained
INFO: Started initialization
Jul 25, 2014 2:23:54 PM hudson.util.BootFailure publish
SEVERE: Failed to initialize Jenkins
hudson.util.HudsonFailedToLoad: java.lang.InterruptedException
    at hudson.WebAppMain$3.run(WebAppMain.java:234)
Caused by: java.lang.InterruptedException
    at java.lang.Object.wait(Native Method)
    at java.lang.Object.wait(Object.java:485)
    at org.jvnet.hudson.reactor.Reactor.execute(Reactor.java:267)
    at jenkins.InitReactorRunner.run(InitReactorRunner.java:44)
    at jenkins.model.Jenkins.executeReactor(Jenkins.java:896)
    at jenkins.model.Jenkins.<init>(Jenkins.java:795)
    at hudson.model.Hudson.<init>(Hudson.java:82)
    at hudson.model.Hudson.<init>(Hudson.java:78)
    at hudson.WebAppMain$3.run(WebAppMain.java:222)

I'm thinking that maybe the Mac Mini doesn't have the optimal hardware, but not sure. I tried increase the heapSize in Jenkins but that didn't seem to help either.

The Mac Mini specs are:

Mac OS X 10.6.8 2 GHz Intel Core 2 Duo 2 GB 667 MHz DDR2 SDRAM

Anyone know why Jenkins is so slow and crashes?

Answer 1

We are running Jenkins on similar hardware, and it shouldn't be a problem at all.

It looks to be an error with another process already being bound to port 8080, and there is a good chance that this could be an instance of jenkins you are started previously. If not, check that any other processes are not already taking this port.

Try putting localhost:8080 into your browser to check if Jenkins is already running. Alternatively try running lsof -i:8080 in terminal to see what also may be bound.