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### Authority: Jason Friedland <thesuperjason@gmail.com>
# This plugin has been tested with:
# - Dstat 0.6.7
# - CentOS release 5.4 (Final)
# - Python 2.4.3
# - Squid 2.6 and 2.7
global squidclient_options
squidclient_options = os.getenv('DSTAT_SQUID_OPTS') # -p 8080
class dstat_plugin(dstat):
'''
Provides various Squid statistics.
'''
def __init__(self):
self.name = 'squid status'
self.type = 's'
self.width = 5
self.scale = 1000
self.vars = ('Number of file desc currently in use',
'CPU Usage, 5 minute avg',
'Total accounted',
'Number of clients accessing cache',
'Mean Object Size')
self.nick = ('fdesc',
'cpu5',
'mem',
'clnts',
'objsz')
def check(self):
if not os.access('/usr/sbin/squidclient', os.X_OK):
raise Exception, 'Needs squidclient binary'
cmd_test('/usr/sbin/squidclient %s mgr:info' % squidclient_options)
return True
def extract(self):
try:
for l in cmd_splitlines('/usr/sbin/squidclient %s mgr:info' % squidclient_options, ':'):
if l[0].strip() in self.vars:
self.val[l[0].strip()] = l[1].strip()
break
except IOError, e:
if op.debug > 1: print '%s: lost pipe to squidclient, %s' % (self.filename, e)
for name in self.vars: self.val[name] = -1
except Exception, e:
if op.debug > 1: print '%s: exception' (self.filename, e)
for name in self.vars: self.val[name] = -1
# vim:ts=4:sw=4:et