Hi,
there must be something seriously wrong about my openafs server.
It is still in a development state, so all server functions are located on
a single virtual machine. While trying to figure out optimal fileserver
parameters, I noticed that even the basic disk operations are extremely
slow on the afs server locally.
How I tested:
I had a directory containing about 2000 files, 300 MB in total.
I duplicated the directory A) inside afs space
B) outside afs, but on the same server
While the A) speed was between 500-1000KB/s, for B) the total operation
took only about 2-3 seconds (~150MB/s)!
So, eventhough everything works, there must be some misconfiguration
somewhere, rather than just a parameter optimization. I don't know whether
the traffic leaves the server just to come back immediately, but even then
I would expect faster operations (110/10Mb internet).
The server runs on Ubuntu 10.04, openafs 1.4 or 1.6 made no significant
difference. There is a whole lot of other functionality on the server, so
a total reinstallation is not a pleasent option.
Any ideas what could cause this?
br, jukka
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