Hi,
Is this error occurring after a context reload? You may want to turn
off context reloading in your mvn jetty configuration because, as far
as i can tell, that has always been a completely broken feature.
Do this by adding <scanIntervalSeconds>0</scanIntervalSeconds> to the
"org.mortbay.jetty" <configuration/>
You can setup javarebel if you want to avoid restarting the container
for minor code changes. You may still run into permgen issues as
javarebel reloads classes too. But, these JVM flags will help reduce
the frequency further:
-XX:+CMSClassUnloadingEnabled -XX:MaxPermSize=128m
(add to your MAVEN_OPTS env variable)
I would also suggest looking into sbt as the continuous compilation is
much more robust than scala:cc (it keeps track of dependencies and
will recompile the entire tree). The only downside is there's no yui
compressor plugin, yet.
- Jon
On Oct 8, 2:16 pm, Timothy Perrett <timo...@getintheloop.eu> wrote:
> Alex,
>
> Any reason your running the install goal? You really don't need to.
>
> Regarding the permgen: Can you show your maven options? You can
> improve the situation by setting a larger heap size, however this is
> an unfortunate thing that just goes along with jetty and maven.
>
> HTH
>
> Cheers, Tim
>
> On Oct 8, 7:10 pm, Alex Black <a...@alexblack.ca> wrote:
>
>
>
> > I've encountered this error 3 times, running Jetty and Maven, just
> > trying out Lift scala with a hello-world like website.
>
> > I have to kill the JVM with "kill -9" and restart things to fix it,
> > any ideas?
> > - Command line: "mvn install jetty:run"
> > - I'm using Lift 1.0, Scala 2.7.6 final, 64bit JDK1.6.0_16, on Ubuntu
> > Desktop x64.
> > - My app is trivial, no comet or actors or mapping, one view, one
> > class, lists records out of a postgres database table (which has 2
> > records in it, 2 columns)
>
> > Here are the errors from the terminal running jetty, I am not sure if
> > the actor/SessionMaster errors are related to the memory errors.
>
> > ERROR - Couldn't start SessionMaster ping
> > net.liftweb.util.ActorPingException: net.liftweb.http.SessionMaster
> > $checkandpur...@7130bd0a could not be scheduled on
> > net.liftweb.http.sessionmast...@36cb1594
> > at net.liftweb.util.ActorPing$.schedule(ActorPing.scala:51)
> > at net.liftweb.http.SessionMaster$.net$liftweb$http$SessionMaster$
> > $doPing(LiftSession.scala:209)
> > at net.liftweb.http.SessionMaster$$anonfun$act$1$$anonfun$apply
> > $1.apply(LiftSession.scala:200)
> > at net.liftweb.http.SessionMaster$$anonfun$act$1$$anonfun$apply
> > $1.apply(LiftSession.scala:169)
> > at scala.actors.Reaction.run(Reaction.scala:78)
> > at scala.actors.FJTask$Wrap.run(Unknown Source)
> > at scala.actors.FJTaskRunner.scanWhileIdling(Unknown Source)
> > at scala.actors.FJTaskRunner.run(Unknown Source)
> > Caused by: java.util.concurrent.RejectedExecutionException
> > at java.util.concurrent.ThreadPoolExecutor
> > $AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:1760)
> > at java.util.concurrent.ThreadPoolExecutor.reject
> > (ThreadPoolExecutor.java:767)
> > at java.util.concurrent.ScheduledThreadPoolExecutor.delayedExecute
> > (ScheduledThreadPoolExecutor.java:216)
> > at java.util.concurrent.ScheduledThreadPoolExecutor.schedule
> > (ScheduledThreadPoolExecutor.java:379)
> > at java.util.concurrent.Executors
> > $DelegatedScheduledExecutorService.schedule(Executors.java:654)
> > at net.liftweb.util.ActorPing$.schedule(ActorPing.scala:49)
> > ... 7 more
> > INFO - Service request (GET) / took 1411 Milliseconds
> > INFO - Service request (GET) /classpath/jquery.js took 7 Milliseconds
> > [INFO] restarting
> > org.mortbay.jetty.plugin.jetty6pluginwebappcont...@5dbb6a69{/,/home/
> > alex/dev/poc/src/main/webapp}
> > 2009-10-08 14:06:44.221::WARN: Error for /ajax_request/liftAjax.js
> > java.lang.OutOfMemoryError: PermGen space
> > 2009-10-08 14:06:47.424::WARN: failed LiftFilter:
> > java.lang.OutOfMemoryError: PermGen space
> > 2009-10-08 14:06:48.053::WARN: failed servlethand...@4838ddcc:
> > java.lang.OutOfMemoryError: PermGen space
> > 2009-10-08 14:06:48.053::WARN: failed securityhand...@d69a11f:
> > java.lang.OutOfMemoryError: PermGen space
> > 2009-10-08 14:06:48.053::WARN: failed sessionhand...@11d1011a:
> > java.lang.OutOfMemoryError: PermGen space
> > 2009-10-08 14:06:48.053::WARN: failed
> > org.mortbay.jetty.plugin.jetty6pluginwebappcont...@5dbb6a69{/,/home/
> > alex/dev/poc/src/main/webapp}: java.lang.OutOfMemoryError: PermGen
> > space
> > 2009-10-08 14:06:48.053::WARN: EXCEPTION
> > java.lang.OutOfMemoryError: PermGen space
> > Exception in thread "Timer-1" java.lang.OutOfMemoryError: PermGen
> > space
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