Re: [Engine-devel] ovirt-engine repo up in gerrit.ovirt.org!

From: "Dennis Jacobfeuerborn" <dennisml(a)conversis.de&gt; To: "Juan Hernandez" <juan.hernandez(a)redhat.com&gt; Cc: engine-devel(a)ovirt.org Sent: Monday, October 31, 2011 3:17:59 PM Subject: Re: [Engine-devel] ovirt-engine repo up in gerrit.ovirt.org! On 10/31/2011 12:29 PM, Juan Hernandez wrote: > On 10/31/2011 12:04 PM, Dennis Jacobfeuerborn wrote: >> On 10/31/2011 09:34 AM, Juan Hernandez wrote: >>> On 10/31/2011 05:55 AM, Itamar Heim wrote: >>>> On 10/31/2011 04:52 AM, Dennis Jacobfeuerborn wrote: >>>>> On 10/31/2011 03:27 AM, Itamar Heim wrote: >>>>>> On 10/30/2011 04:32 PM, Dennis Jacobfeuerborn wrote: >>>>>>> Hi Yair, >>>>>>> I managed to install the two missing dependencies from the >>>>>>> web and now >>>>>>> the build seem to run ok but apparently 8gb of RAM are not >>>>>>> sufficient to >>>>>>> build ovirt-engine so I'll have to give it a pass for now and >>>>>>> wait for >>>>>>> binary releases. >>>>>> >>>>>> 8GB are more than enough. probably some config for the JVM. >>>>>> what's the error you are getting? >>>>>> did you set the JAVA_OPTS? >>>>> >>>>> I don't get an error. The build process simply uses up all >>>>> memory and >>>>> the desktop becomes unusable. If I don't switch to another >>>>> virtual >>>>> terminal and issue a "killall java" then the system would >>>>> probably die >>>>> in the end and require a reboot (or the OOM Killer would step >>>>> in an kill >>>>> some processes before that happens). >>>>> >>>>> This is a plain Fedora 15 System and I'm following the build >>>>> instructions from the wiki so right now there are no custom >>>>> settings >>>>> applied. >>>> >>>> we are all building on F15, and with less than 8GB as well. >>>> which command are you running causing the hang? >>>> what does top shows when it hangs? >>>> what does maven output show when it hangs (i.e., which part of >>>> the >>>> project is causing the hang). >>> >>> The compilation of the GWT applications can take very long (more >>> than 10 >>> minutes in a core i5 with 8GB) with intensive use of all the >>> CPUs. This >>> could be what you are observing. Can try to build without the >>> "-Pgwt-user" and "-Pgwt-admin" options? Just to check if this is >>> your issue. >>> >> >> This seems to be the problem. I already sent the information to >> Yair >> Zaslavsky (and Daniel Erez) who contacted me off-list about this >> (though I >> think this really belongs on the list so everybody can chime in). >> I attached the output I get. At the end I had to kill the process >> because >> memory usage was at about 99%. >> >> The command I'm running is: mvn install -Pgwt-admin,gwt-user >> The system monitor shows cpu usage very low (up to the problematic >> point >> the build seems to spend 90% of its time trying to download jar >> files from >> bogus sources) and memory usage increasing slightly as expected >> until the >> build reaches that last problematic part where all cpu cores go to >> 100% and >> memory usage increases until all memory is consumed. > > All those messages are expected, except the "Destroying process > ..." at > the end. I assume that you get that when you kill the Java > processes. > How long did you wait before killing them? I would suggest that you > try > again and give it time to complete. GWT compiling is extremelly > > Also you can reduce the number of permutations generated by the GWT > compiler and that will reduce the time it takes to compile. For > example, > if you are going to use Firefox only as the client you can apply > the > following patch to reduce the number of permutations to just one: > > --- > a/frontend/webadmin/modules/webadmin/src/main/java/org/ovirt/engine/ui/webadmin/WebAdmin.gwt.xml > +++ > b/frontend/webadmin/modules/webadmin/src/main/java/org/ovirt/engine/ui/webadmin/WebAdmin.gwt.xml > @@ -19,6 +19,9 @@ > <set-property name="gwt.logging.logLevel" value="INFO" /> > <set-property name="gwt.logging.popupHandler" > value="DISABLED" /> > > +<!-- Reduce the number of permutations to compile, just for > tests: --> > +<set-property name="user.agent" value="gecko1_8"/> > + > <!-- Inherit oVirt UiCommon Web modules and GWT deRPC > module --> > <inherits name="org.ovirt.engine.ui.GwtExtension" /> > <inherits name="org.ovirt.engine.ui.UICommonWeb" /> > > Then compile with "-Pgwt-admin" only. That will generate the GUI > but > only for Firefox. In my environment (Intel Core i5 8GB) this > reduces the > GWT compilation to 4 minutes: > > [INFO] WebAdmin ... SUCCESS [4:22.581s] With the patch the build was successfull. I then went ahead and freed up some memory by stopping some applications and with that even the fill build tops out at about 90% memory usage so it seems that 8gb is enough after all but only barely. With the patch memory usage topped out at 40% so this would definitely make a difference for people with smaller build systems. The deployment works as well but when I start jboss I get the attached errors. Also the build instructions talk about "<server>:<port>" to access the deployed services. I presume <server> is localhost but what port do I use to access the services? Regards, Dennis _______________________________________________ Engine-devel mailing list Engine-devel(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel