a memory oddness (possibly a Mac oddness)

Peter Van Epp vanepp at sfu.ca
Mon Feb 5 19:05:57 EST 2007


	I'm trying to run racluster against an archive. I started with a 
script that does 24 hours (one hour at a time) and discovered that my 2 gig
Mac ran out of memory a couple of files in. Rebooting (which seems to be 
required to free VM) and running them individually seems to still run out
of memory (perhaps indicating a memory leak) on about the second file:

test4:/var/log/argus vanepp$ /usr/local/bin/racluster -r  /archive/argus3/com_argus.archive/2007/01/30/com_argus.2007.01.30.09.00.00.0.gz -w  /archive/argus3c/com_argus.archive/2007/01/30/com_argus.2007.01.30.09.00.00.0
test4:/var/log/argus vanepp$ /usr/local/bin/racluster -r  /archive/argus3/com_argus.archive/2007/01/30/com_argus.2007.01.30.10.00.01.0.gz -w  /archive/argus3c/com_argus.archive/2007/01/30/com_argus.2007.01.30.10.00.01.0
racluster(364) malloc: *** vm_allocate(size=1069056) failed (error code=3)
racluster(364) malloc: *** error: can't allocate region
racluster(364) malloc: *** set a breakpoint in szone_error to debug
Bus error

	I just started moving the source archive from the Mac to one of the 
IBMs with 4 gigs of ram to see if the same thing will happen there. I'd 
think that the racluster task ending should release all the memory its holding
which doesn't seem to be happening (but may be a Mac issue rather than 
argus). 

Peter Van Epp / Operations and Technical Support 
Simon Fraser University, Burnaby, B.C. Canada



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