You need to supply --jvm_flag as a command-line argument to dev_appserver.sh
(aka KickStart), not to java.exe. That should work the same way for the ant,
<dev_appserver/> task. (You can see this in config/user/ant-macros.xml).
On Mon, Jun 28, 2010 at 3:51 PM, Mike Dillon <mikedillo...@gmail.com> wrote:
> Another thing to consider. I'm not using eclipse, and I'm building and
> running the server with 'ant runserver'. I just realized that ant
> isn't calling
> dev_appserver.sh so I haven't been executing those args at all. When I
> use dev_appserver.sh to run my server it chokes on --jvm_flag but will
> run with just the -Xmx, however that has no affect.
>
> - Mike
>
> On Jun 28, 2:47 pm, Mike Dillon <mikedillo...@gmail.com> wrote:
> > Thanks,
> >
> > Yes that is exactly whats going on, the linux box has 4gb of ram, my
> > mac has 2gb...
> >
> > And yes I tried the --jvm_flag=-Xmx512m on my mac with no success.
> >
> > - Mike
> >
> > On Jun 28, 2:42 pm, Don Schwarz <schwa...@google.com> wrote:
> >
> >
> >
> > > Have you tried --jvm_flag=-Xmx<whatever>m on your Mac? It should work
> there
> > > too.
> >
> > > As for the Linux box, the default heap size is different depending on
> > > whether you have a "server-class" machine or not, so it is possible
> that you
> > > are seeing a much higher default heap size just by virtue of using a
> machine
> > > with more RAM or more processors.
> >
> > > The -Xmx setting you added to dev_appserver.sh has no effect. Your
> code is
> > > executed in a subprocess, which is why --jvm_flag must be used to pass
> Java
> > > args through to this process.
> >
> > > On Mon, Jun 28, 2010 at 6:38 PM, Mike Dillon <mikedillo...@gmail.com>
> wrote:
> > > > Thanks Don,
> >
> > > > I forgot to mention that I'm using a mac with the latest snow leopard
> > > > update. It seems that these heap space
> > > > commands are incorrect for my machine, because we just tested it on a
> > > > linux box and it works fine, even
> > > > without the --jvm_flag prefix.
> >
> > > > Any ideas?
> >
> > > > - Mike
> >
> > > > On Jun 28, 1:18 pm, Don Schwarz <schwa...@google.com> wrote:
> > > > > I believe you want the following flag:
> >
> > > > > --jvm_flag=-Xmx512m
> >
> > > > > On Sun, Jun 27, 2010 at 3:13 PM, Mike Dillon <
> mikedillo...@gmail.com>
> > > > wrote:
> > > > > > Hello all,
> >
> > > > > > Im working on a project that reads GTFS archives as part of its
> > > > > > functionality. When we are importing
> > > > > > a particular set of data that has ~60,000 entries my dev server
> locks
> > > > > > up around the 27,000 entry. The
> > > > > > error is the java heap space error. I would like to know if
> anyone has
> > > > > > successfully upped their heap
> > > > > > space. I searched, and found general instructions but after
> > > > > > implementing them I'm still failing around
> > > > > > the same entry. This is leading me to believe that my command
> line
> > > > > > args are not taking affect. Here
> > > > > > is what I have so far:
> >
> > > > > > appengine-sdk-java/bin/dev_appserver.sh:
> > > > > > #!/bin/bash
> > > > > > # Launches the development AppServer
> > > > > > [ -z "${DEBUG}" ] || set -x # trace if $DEBUG env. var. is
> non-zero
> > > > > > SDK_BIN=`dirname $0 | sed -e "s#^\\([^/]\\)#${PWD}/\\1#"` # sed
> makes
> > > > > > absolute
> > > > > > SDK_LIB=$SDK_BIN/../lib
> > > > > > SDK_CONFIG=$SDK_BIN/../config/sdk
> > > > > > java -Xms1024m -Xmx1024m -ea -cp
> "$SDK_LIB/appengine-tools-api.jar" \
> > > > > > com.google.appengine.tools.KickStart \
> > > > > > com.google.appengine.tools.development.DevAppServerMain $*
> >
> > > > > > Is this correct?
> >
> > > > > > Also the way we get our data is through a custom import function
> that
> > > > > > chunks the data into groups of 20
> > > > > > and then processes them and stores them into the datastore. We
> are
> > > > > > only using one instance of the
> > > > > > persistance manager as per the recommendations to use a singleton
> > > > > > class. Each batch hits a servlet on
> > > > > > our app and then does its work. Should we close the persistence
> > > > > > manager after every batch is completed?
> > > > > > I'm wondering if this would be a memory leak.
> >
> > > > > I believe our documentation recommends storing the
> > > > PersistenceManagerFactory
> > > > > as a singleton, but using a new PersistenceManager each time
> (remembering
> > > > to
> > > > > close it before discarding).
> >
> > > > > However, the local implementation of the datastore does keep
> everything
> > > > in
> > > > > memory (and simply flushes to disk periodically), so you will run
> into
> > > > size
> > > > > issues at some point.
> >
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