On Jan 28, 2008, at 7:06 PM, Leonardo Santagada wrote:
On 28/01/2008, at 20:44, Alex Benjamen wrote:
I could allocate more physical memory, but I can't seem to increase
the -Xmx option to 3800 I get
an error : "Could not reserve enough space for object heap", even
though I have more than 4Gb free.
(We're running on Intel quad core 64bit) When I try strace I'm
seeing mmap2 errors.
]
I don't know much about java... but can you get any program to map
more than 4gb of memory? I know windows has hard limits on how much
memory you can map to one process and linux I think has some limit
too. Of course it can be configured but maybe it is just a system
configuration problem.
We use 10GB of ram in one of our solr installs. You need to make sure
your java is 64 bit though. Alex, what does your java -version show?
Mine shows
java version "1.6.0_03"
Java(TM) SE Runtime Environment (build 1.6.0_03-b05)
Java HotSpot(TM) 64-Bit Server VM (build 1.6.0_03-b05, mixed mode)
And I run it with -mx10000m -ms5000m
