Hi,
Yes, this is somewhat expected behavior. More client memory can help this
as it allows for more local caching.
-cf
-----Original message-----
From: Christian Becker <[email protected]>
To: "[email protected]" <[email protected]>
Sent: Fri, May 4, 2012 22:34:26 MDT
Subject: [Lustre-discuss] Frequent system calls cause high load on meta data
server
Dear colleagues,
one of our users calls within his R application an external program via
the system function very often (/home is a lustre file system):
for (i=0;i<10000;i++)
{
system("/home/user/bin/program arg0 arg1 ....");
}
The runtime for the external program is only a few seconds. With hundred
of these jobs running, the load on the meta data server goes up to 25
(2way quad core with lustre 1.8.3).
Is such a behavior known, if yes, how can I avoid it?
best regards,
Christian
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