Ah, you are right Michael. Please disregard my config file suggestion :)
-Phil
On 06/02/2011 10:51 AM, Michael Moore wrote:
I checked a little closer in the create state machine. If I'm reading
it correctly, the only way to only get local file handles it to have
the stuffed option on. Otherwise, remote file handles will be
allocated and the only way those currently get populated is from
precreate pools. Of course testing the configuration is the only
definitive way to know where and if it breaks.
To change the reliance on precreate behavior my thought would be to
change the state machines that rely on
job_precreate_pool_get_handles() to have a different way to get
handles. In other words, based on some flag have the state machine
take one of two paths 1) get handles normally with precreate 2) the
old route. Now, I am not familiar with the 'old route' so I don't know
how well it would fit.
Michael
On Thu, Jun 2, 2011 at 8:39 AM, Phil Carns <[email protected]
<mailto:[email protected]>> wrote:
I share Michael's curiosity as well, but I think it might be
possible to disable the precreate functionality using config file
options if you really need to (not recommended):
Set the FileStuffing option to "no" to prevent the file system
from using the file stuffing optimization that relies on
precreated objects:
http://www.pvfs.org/cvs/pvfs-2-8-branch-docs/doc//pvfs-config-options.php#FileStuffing
And then also set the PrecreateLowThreshold to 0 to prevent the
servers from trying to fill up their respective pools of
precreated objects on startup:
http://www.pvfs.org/cvs/pvfs-2-8-branch-docs/doc//pvfs-config-options.php#PrecreateLowThreshold
I have never tried that particular configuration so I can't say
for sure if it will work or not.
-Phil
On 06/01/2011 09:52 PM, Michael Moore wrote:
Hi Cengiz,
I'm curious, what's the use case for needing the precreate
functionality disabled? Migration from an older version?
Thanks,
Michael
On Wed, Jun 1, 2011 at 3:01 PM, Karakoyunlu, Cengiz
<[email protected] <mailto:[email protected]>> wrote:
Is it possible to disable the precreate functions in
orangefs-2.8.4 and use the traditional methods existed in
previous distributions to start server, perform i/o
operations etc.?
Thank you,
Cengiz
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