rpcdebug(8) System Manager's Manual rpcdebug(8)NAME
rpcdebug - set and clear NFS and RPC kernel debug flags
SYNOPSIS
rpcdebug -vh
rpcdebug -m module
rpcdebug -m module -s flags...
rpcdebug -m module -c flags...
DESCRIPTION
The rpcdebug command allows an administrator to set and clear the Linux kernel's NFS client and server debug flags. Setting these flags
causes the kernel to emit messages to the system log in response to NFS activity; this is typically useful when debugging NFS problems.
The first form in the synopsis can be used to list all available debug flags. The second form shows the currently set debug flags for the
given module. The third form sets one or more flags, and the fourth form clears one or more flags.
The value all may be used to set or clear all the flags for the given module.
OPTIONS -c Clear the given debug flags.
-h Print a help message and exit. When combined with the -v option, also prints the available debug flags.
-m module
Specify which module's flags to set or clear. Available modules are:
nfsd The NFS server.
nfs The NFS client.
nlm The Network Lock Manager, in either an NFS client or server.
rpc The Remote Procedure Call module, in either an NFS client or server.
-s Set the given debug flags.
-v Increase the verbosity of rpcdebug's output.
FILES
/proc/sys/sunrpc/{rpc,nfs,nfsd,nlm}_debug
procfs-based interface to kernel debug flags.
SEE ALSO rpc.nfsd(8), nfs(5), syslogd(8).
BUGS
Bugs can be found or reported at http://nfs.sf.net/.
AUTHOR
Program by Olaf Kirch <okir@suse.de> and <frederic.jolly@bull.ext.net>. Manpage by Greg Banks <gnb@melbourne.sgi.com>.
5 Jul 2006 rpcdebug(8)
Check Out this Related Man Page
nfsstat(8) System Manager's Manual nfsstat(8)NAME
nfsstat - list NFS statistics
SYNOPSIS
nfsstat [OPTION]...
DESCRIPTION
The nfsstat displays statistics kept about NFS client and server activity.
OPTIONS -s, --server
Print only server-side statistics. The default is to print both server and client statistics.
-c, --client
Print only client-side statistics.
-n, --nfs
Print only NFS statistics. The default is to print both NFS and RPC information.
-2 Print only NFS v2 statistics. The default is to only print information about the versions of NFS that have non-zero counts.
-3 Print only NFS v3 statistics.
-4 Print only NFS v4 statistics.
-m, --mounts
Print information about each of the mounted NFS file systems.
If this option is used, all other options are ignored.
-r, --rpc
Print only RPC statistics.
-o facility
Display statistics for the specified facility, which must be one of:
nfs NFS protocol information, split up by RPC call.
rpc General RPC information.
net Network layer statistics, such as the number of received packets, number of TCP connections, etc.
fh Usage information on the server's file handle cache, including the total number of lookups, and the number of hits and
misses.
rc Usage information on the server's request reply cache, including the total number of lookups, and the number of hits and
misses.
all Display all of the above facilities.
-v, --verbose
This is equivalent to -o all.
-l, --list
Print information in list form.
-S, --since file
Instead of printing current statistics, nfsstat imports statistics from file and displays the difference between those and the cur-
rent statistics. Valid input files may be in the form of /proc/net/rpc/nfs (raw client stats), /proc/net/rpc/nfsd (raw server
stats), or saved output from nfsstat itself (client and/or server stats). Any statistics missing from a saved nfsstat output file
are treated as zeroes.
-Z[interval], --sleep=[interval]
Instead of printing current statistics and immediately exiting, nfsstat takes a snapshot of the current statistics and pauses until
it receives SIGINT (typically from Ctrl-C), at which point it takes another snapshot and displays the difference between the two.
If interval is specified, nfsstat will print the number of NFS calls made since the previous report. Stats will be printed repeat-
edly every interval seconds.
EXAMPLES
nfsstat -o all -234
Show all information about all versions of NFS.
nfsstat --verbose -234
Same as above.
nfsstat -o all
Show all information about active versions of NFS.
nfsstat --nfs --server -3
Show statistics for NFS version 3 server.
nfsstat -m
Show information about mounted NFS filesystems.
DISPLAY
The Flags output from the -m option is the same as the flags give to the mount command.
FILES
/proc/net/rpc/nfsd
procfs-based interface to kernel NFS server statistics.
/proc/net/rpc/nfs
procfs-based interface to kernel NFS client statistics.
/proc/mounts
procfs-based interface to the mounted filesystems.
SEE ALSO rpc.nfsd(8). nfs(5).
BUGS
The default output has been changed. To get the old default output you must run nfsstat --auto -2.
The function of the -v and -a options have changed. The -a option is now reserved for future use. The -v does what the -a option used to
do, and the new -[234] options replace the -v option.
The Display section should be more complete.
Further bugs can be found or reported at http://nfs.sf.net/.
AUTHOR
Olaf Kirch, <okir@suse.de>
7 Aug 2007 nfsstat(8)