Re: Memory / Swap

On Fri, 2004-04-30 at 11:24, John Pinney wrote:
> Is it safe / advisable to make ozone use lots of swap space? I can certainly 
> start an ozone server with more than my machine's physical memory (although 
> it takes a long time to start up). I have some applications which are running 
> out of memory, but I don't want to crash the server!

You should never be able to crash a java program (or any program for
that matter) by allowing it to use more than available physical memory;
the OS manages vm. As ozone is nothing more than a java program it
should do no harm to allow it to use vm. Performance is another thing.

You might want to take a look at the config.properties settings of your
database; if you *exactly* specify how much memory the jvm can (and
will) use, then startup times are drastically lower. Note however that
if that setting does not correspond to actual jvm memory (-Xmx option),
you can easily end up with OutOfMemoryErrors.

Cheers,
Leo

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