Hi All,
I have a question about the caching policy Lustre uses on
the server side. I'm using 1.4.7 and my current setting
is 1 MDS, 3 OST and 2 clients. My experience is that if
client 1 first fetches a file "foo" from Lustre to its
own /tmp directory and client 2 tries to fetch "foo" later,
client 2 will get the file faster. I wonder if Lustre is
using caching on the server side. I mean, data server, not
MDS. I searched this mail list and did not get clear clue.
Can anybody tell me if a Lustre server will save accessed
data in its memory or not? It is quite important in the
performance analysis of our research.
Thanks,
Zhe Zhang
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