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### Author: Dean Wilson <dean.wilson@gmail.com>
class dstat_plugin(dstat):
"""
Memcache hit count plugin.
Displays the number of memcache get_hits and get_misses.
"""
def __init__(self):
self.name = 'Memcache Hits'
self.nick = ('Hit', 'Miss')
self.vars = ('get_hits', 'get_misses')
self.type = 'd'
self.width = 6
self.scale = 50
def check(self):
try:
global memcache
import memcache
self.mc = memcache.Client(['127.0.0.1:11211'], debug=0)
except:
raise Exception, 'Plugin needs the memcache module'
def extract(self):
stats = self.mc.get_stats()
for key in self.vars:
self.val[key] = long(stats[0][1][key])