[Live-demo] [OSGeo] #1399: OpemJUMP fails on system with more than 4gb ram

[OSGeo]

#1399: OpemJUMP fails on system with more than 4gb ram
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 Reporter:  hamish   |       Owner:  live-demo@…              
     Type:  defect   |      Status:  new                      
 Priority:  major    |   Milestone:  OSGeoLive8.0             
Component:  LiveDVD  |    Keywords:  openjump                 
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 For the OSGeoLive 8.0 disc we use 32bit Lubuntu with the linux pae
 extensions, allowing the OS (but not processes) to access to more than 4gb
 ram.

 On a test of the 8.0 mini on a system with 16gb ram, or a VM with 5gb RAM,
 OpenJUMP fails to start.

 If you try from the command line you get the following error message:

 {{{
 $ openjump
 limit max. memory to 3072 MiB
 Running -> '/usr/lib/jvm/java-7-openjdk-i386/jre/bin/java';  java version
 "1.7.0_65"; OpenJDK Runtime Environment (IcedTea 2.5.1)
 (7u65-2.5.1-4ubuntu1~0.14.04.1); OpenJDK Server VM (build 24.65-b04, mixed
 mode);
 Error occurred during initialization of VM
 Could not reserve enough space for object heap
 Error: Could not create the Java Virtual Machine.
 Error: A fatal exception has occurred. Program will exit.
 press Enter to finish
 }}}

 Looking in the /usr/bin/openjump startup script I see some special 32bit
 $MEM_MAX logic. If I change the value there for max on 32bit down to
 2716000000, or simply comment out the JAVA_MAXMEM line, then it starts up
 ok.


 thanks,
 Hamish

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Ticket URL: <https://trac.osgeo.org/osgeo/ticket/1399>
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