[Pvfs2-developers] ncache causes shared creat problems
Robert Latham
robl at mcs.anl.gov
Mon Aug 28 16:39:45 EDT 2006
On Mon, Aug 28, 2006 at 04:28:32PM -0400, Pete Wyckoff wrote:
> So yeah, the file gets deleted by just one task. Then they all
> simultaneously try to create it again.
That's also what happens when noncontig_coll2 was failing. We did ok
until a different process tried to open the file that another process
just deleted. By turning the ncache timeout way down (not disabled, but
set to a very short interval), the test would pass. Guess the delete
from one process wasn't visible (is that the right word?) to other
processes.
==rob
--
Rob Latham
Mathematics and Computer Science Division A215 0178 EA2D B059 8CDF
Argonne National Labs, IL USA B29D F333 664A 4280 315B
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