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### Author: Adam Michel <elfurbe@furbism.com>
### Based on work by: Dag Wieers <dag@wieers.com>
class dstat_plugin(dstat):
def __init__(self):
self.name = 'nfs4 client'
# this vars/nick pair is the ones I considered relevant. Any set of the full list would work.
self.vars = ('read', 'write', 'readdir', 'commit', 'getattr', 'create', 'link','remove')
self.nick = ('read', 'writ', 'rdir', 'cmmt', 'gatr','crt','link','rmv')
# this is every possible variable if you're into that
#self.vars = ("read", "write", "commit", "open", "open_conf", "open_noat", "open_dgrd", "close",
# "setattr", "fsinfo", "renew", "setclntid", "confirm", "lock", "lockt", "locku",
# "access", "getattr", "lookup", "lookup_root", "remove", "rename", "link", "symlink",
# "create", "pathconf", "statfs", "readlink", "readdir", "server_caps", "delegreturn",
# "getacl", "setacl", "fs_locations", "rel_lkowner", "secinfo")
# these are terrible shortnames for every possible variable
#self.nick = ("read", "writ", "comt", "open", "opnc", "opnn", "opnd", "clse", "seta", "fnfo",
# "renw", "stcd", "cnfm", "lock", "lckt", "lcku", "accs", "gatr", "lkup", "lkp_r",
# "rem", "ren", "lnk", "slnk", "crte", "pthc", "stfs", "rdlk", "rdir", "scps", "delr",
# "gacl", "sacl", "fslo", "relo", "seco")
self.type = 'd'
self.width = 5
self.scale = 1000
self.open('/proc/net/rpc/nfs')
def check(self):
# other NFS modules had this, so I left it. It seems to work.
info(1, 'Module %s is still experimental.' % self.filename)
def extract(self):
# list of fields from nfsstat, in order of output from cat /proc/net/rpc/nfs
nfs4_names = ("version", "fieldcount", "null", "read", "write", "commit", "open", "open_conf",
"open_noat", "open_dgrd", "close", "setattr", "fsinfo", "renew", "setclntid",
"confirm", "lock", "lockt", "locku", "access", "getattr", "lookup", "lookup_root",
"remove", "rename", "link", "symlink", "create", "pathconf", "statfs", "readlink",
"readdir", "server_caps", "delegreturn", "getacl", "setacl", "fs_locations",
"rel_lkowner", "secinfo")
for line in self.splitlines():
fields = line.split()
if fields[0] == "proc4": # just grab NFSv4 stats
assert int(fields[1]) == len(fields[2:]), ("reported field count (%d) does not match actual field count (%d)" % (int(fields[1]), len(fields[2:])))
for var in self.vars:
self.set2[var] = fields[nfs4_names.index(var)]
for name in self.vars:
self.val[name] = (int(self.set2[name]) - int(self.set1[name])) * 1.0 / elapsed
if step == op.delay:
self.set1.update(self.set2)
# vim:ts=4:sw=4:et
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