On 03/06/2012 12:20 AM, Andrew Savchenko wrote:
Hello,
On Wed, 22 Feb 2012 10:45:56 -0500 Becky Ligon wrote:
Let us know how it goes.
It goes not that well. For now I test on a double server setup on a
single host (kernel 3.1.10).
I can't get varstrip_dist to work at all. Due to some unknown issue
Value of the Parameter varstrip_dist is not recognized. I attached
configuration files for both daemons. On attempt to create any file
in client's log I got this:
[E 08:10:06.767328] ERROR: Parameter 'strips' empty!
[E 08:10:06.767363] Error: missing manditory parameters to varstrip_dist
distribution.
[E 08:10:06.767371] Error: distribution failure for 2 servers and 0 requested
datafiles.
[E 08:10:06.767379] Error: failed to get number of data servers
[E 08:10:06.767389] Posting file create failed: Invalid argument
[E 08:10:06.767397] Post of op: PVFS2_VFS_OP_CREATE failed!
[E 08:10:06.767411] Operation failed: (null)
But as you can see strips is provided with a value:
<Distribution>
Name varstrip_dist
Param strips
Value 0:128K; 1:32K;
Hi Andrew,
I don't know if this is your problem or not, but you probably need to
remove the whitespace in the above line so that it looks like "Value
0:128K;1:32K".
thanks,
-Phil
</Distribution>
Maybe some parser problem, I haven't debugged this. This problems
occurs without any patches from my side.
On the bright side I implemented LayoutAlgo option to specify default
data layout in the config file in the Defaults section. It seems to work
well, tested with default simple_stripe distribution. Option accepts
following values:
none, round-robin, random;
no support for the list layout as this will overcomplicate code and is
questionably needed. Patch is attached.
Best regards,
Andrew Savchenko
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