Hi Guys,

My laptop and the network of computers I work with have Redhat 6.2. (But we can upgrade to Redat 7.2 if necessary.) I was wondering if the NFS clients are caching? I am in the process of writing a distributed application and it would be really nice if Linux cached the disk reads locally.. save me a ton of work writing my own cache manager.

Anyone know or have an idea of where to look for the answer? I tried google and redhat.com with search words like: "linux nfs cache" with no luck. No mention of NFS caching in the official Linux kernel.. but then that doens't mean it isn't there...


Sonny.

there are several parameters for this however it seems to be talking about attributes


acregmin=n The minimum time in seconds that attributes
of a regular file should be cached before
requesting fresh information from a server.
The default is 3 seconds.


acregmax=n The maximum time in seconds that attributes
of a regular file can be cached before
requesting fresh information from a server.
The default is 60 seconds.


acdirmin=n The minimum time in seconds that attributes
of a directory should be cached before
requesting fresh information from a server.
The default is 30 seconds.


acdirmax=n The maximum time in seconds that attributes
of a directory can be cached before
requesting fresh information from a server.
The default is 60 seconds.


actimeo=n Using actimeo sets all of acregmin, acreg*
max, acdirmin, and acdirmax to the same
value. There is no default value.





this is from the man files

you can also set the connection timeouts so that may help