The usual way to do that is to re-architect your filesystem so that the
system pool is metadata-only, and then you can just look at the storage
layer and see total metadata throughput that way. Otherwise your
metadata ops are mixed in with your data ops.
Of course, both NSDs and clients also have metadata caches.
On 09/03/2014 10:27 AM, Salvatore Di Nardo wrote:
Last but not least.. and this is what i really would like to accomplish,
i would to be able to monitor the latency of metadata operations.
In my environment there are users that litterally overhelm our storages
with metadata request, so even if there is no massive throughput or huge
waiters, any "ls" could take ages. I would like to be able to monitor
metadata behaviour. There is a way to to do that from the NSD servers?
--
Alex Chekholko [email protected] 347-401-4860
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