On Fri, 23 Mar 2007, Marc G. Fournier wrote:
I've checked nmbclusters between the two machines, and both are at 25600,
but not sure what sysctl to look at for how much is actually used out of
that 25600 ...
netstat -mb
nmbclusters directly affects the number of clusters available in the network
stack; it also indirectly affects the scaling of other settings, such as
resource limits on the number of sockets. vmstat -z is also generally useful.
There are a few paths to ENOBUFS in the socket allocation code--one path is if
you are over-committed on socket buffer resources with respect to the resource
limits of the user. Check the output of limits and the socket buffer size
limit.
Robert N M Watson
Computer Laboratory
University of Cambridge
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