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varnishhoststatcore.py
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varnishhoststatcore.py
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# coding: utf-8
import varnishapi,time,datetime,os,re,json,math
import logging,logging.handlers
class varnishHostStat:
def Fini(self):
self.vap.Fini()
def __init__(self, opts):
#utils
#buf -> trx
self.buf = {}
self.trx = [{}]
self.thr = 10
self.filter = False
self.repl = False
self.mode_raw = False
self.o_json = False
self.log = False
self.mode_a = False
self.time = int(time.time())
self.last = int(time.time())
self.error = ''
self.field = 'host: '
self.exstatus = {}
self.header = ''
self.useVUT = 0
forcevsm = 0
vops = ['-g','request']
arg = {}
for o,a in opts:
if o == '-i' and a.isdigit():
self.thr = int(a)
elif o == '-w':
lg = logging.handlers.WatchedFileHandler(a)
lg.setLevel(logging.INFO)
lg.setFormatter(logging.Formatter("%(message)s"))
self.log = logging.getLogger()
self.log.addHandler(lg)
self.log.setLevel(logging.INFO)
elif o == '-r':
self.mode_raw = True
elif o == '-a':
self.mode_a = True
elif o == '-j':
self.o_json = True
elif o == '-n':
vops += ['-n', a]
elif o == '--sopath':
arg["sopath"] = a
elif o == '--status':
spl = a.split(',')
for status in spl:
self.exstatus[status] = 0
elif o == '--vsm':
forcevsm = 1
elif o == '--start':
start = int(a)
today = datetime.datetime.today()
ns = today.second + today.microsecond / 1000000
if start > ns:
wait = start - ns
elif start == ns:
wait = 0
else:
wait = 60 - ns + start
if wait > 0:
self.time += math.ceil(wait)
self.last += math.ceil(wait)
time.sleep(wait)
elif o == '-F':
spl = a.split('@' ,2)
tmp = [a, spl[0]]
if len(spl) == 2:
tmp.append(re.compile(spl[1]))
else:
tmp.append(False)
if not self.filter:
self.filter = []
self.filter.append(tmp)
elif o == '-R':
if not self.repl:
self.repl = []
# spilit word [/]
spl = a.split('/', 1)
self.repl.append([
re.compile(spl[0]),
spl[1]
])
elif o == '-f':
self.field = a.lower().rstrip(' :') + ': '
if self.mode_a and not self.filter:
self.mode_a = False
print("Disabled -a option. Bacause -F option is not specified.")
if self.mode_raw:
self.header = "%-50s | %-11s | %-11s | %-11s | %-13s | %-11s | %-11s | %-11s | %-11s | %-11s |" % ("Host", "req", "fetch", "fetch_time","no_fetch_time","totallen", "2xx","3xx", "4xx", "5xx")
for status in self.exstatus.keys():
self.header += " %-11s |" % (status+"")
self.header += "\n"
self.header += '-' * (179 + len(self.exstatus)* 14) + "|\n"
else:
self.header = "%-50s | %-11s | %-11s | %-11s | %-11s | %-11s | %-11s | %-11s | %-11s | %-11s | %-11s | %-11s |" % ("Host", "Mbps", "rps", "hit", "time/req","(H)time/req", "(M)time/req", "KB/req", "2xx/s", "3xx/s", "4xx/s", "5xx/s")
for status in self.exstatus.keys():
self.header += " %-11s |" % (status+"/s")
self.header += "\n"
self.header += '-' * (205 + len(self.exstatus)* 14) + "|\n"
self.fieldlen = len(self.field)
vops+= ['-I', 'ReqAcct,BereqAcct,PipeAcct,ReqHeader,ReqURL,RespStatus,Timestamp:(?i)^([0-9]|https?:/|/|Start: |PipeSess: |Resp: |%s)' % self.field]
arg["opt"] = vops
if not forcevsm:
self.__chkUseVUT(arg)
if self.useVUT:
self.vap = varnishapi.VarnishLogVUT(**arg)
else:
self.vap = varnishapi.VarnishLog(**arg)
if self.vap.error:
print(self.vap.error)
exit(1)
self.vslutil = varnishapi.VSLUtil()
def __chkUseVUT(self, _arg):
arg = {}
if 'sopath' in _arg:
arg['sopath'] = _arg['sopath']
api = varnishapi.VarnishAPI(**arg)
if api.lva.apiversion >= 2.0:
self.useVUT = 1
def executeVSM(self):
self.state=0
arg = {
'cb' : self.vapLineCallBack,
'groupcb' : self.vapGroupCallBack,
'maxread' : 0,
}
while 1:
#dispatch
self.vap.error = ''
ret = self.vap.Dispatch(**arg)
if self.vap.error != '':
self.error = self.vap.error
if ret == 0:
time.sleep(0.1);
self.vapGroupCallBack(None, None)
def executeVUT(self):
self.state=0
arg = {
'cb' : self.vapLineCallBack,
'groupcb' : self.vapGroupCallBack,
'maxread' : 0,
}
ret = self.vap.Dispatch(**arg)
self.vap.waitSignal()
def execute(self):
if self.useVUT:
self.executeVUT()
else:
self.executeVSM()
def makeCmpData(self):
now = int(time.time())
delta = int((now - self.time)/self.thr)
if delta >= 1:
tmp = {}
total = {}
while len(self.trx) > 0:
pl = self.trx.pop(0)
for host,v in pl.items():
if host not in tmp:
tmp[host] = {}
for key,val in v.items():
if key not in tmp[host]:
tmp[host][key] = 0
tmp[host][key] += val
if host[0:3] != "[AF":
if key not in total:
total[key] = 0
total[key] += val
otime = self.time
self.time = now
if len(total) == 0:
return {'@start-time':otime, '@end-time':now -1, '@info':''}
tmp['#alldata'] = total
tmp['@start-time'] = otime
tmp['@end-time'] = now -1
tmp['@info'] = self.error
self.error = ''
if self.mode_raw:
return tmp
for host, v in tmp.items():
if host[0] == '@':
continue
tmp[host]['mbps'] = float(v['totallen']) / self.thr * 8 / 1024 / 1024
tmp[host]['rps'] = float(v['req']) / self.thr
if v['req'] > 0:
tmp[host]['hit'] = (1 - float(v['fetch']) / v['req']) * 100
tmp[host]['avg_fsize'] = float(v['totallen']) / v['req'] / 1024
tmp[host]['avg_time'] = (float(v['no_fetch_time']) + v['fetch_time']) / v['req']
else:
tmp[host]['hit'] = 0.0
tmp[host]['avg_fsize'] = 0.0
tmp[host]['avg_time'] = 0.0
if v['req'] - v['fetch'] > 0:
tmp[host]['avg_not_fetch_time'] = float(v['no_fetch_time']) / (v['req'] - v['fetch'])
else:
tmp[host]['avg_not_fetch_time'] = 0.0
if v['fetch'] > 0:
tmp[host]['avg_fetch_time'] = float(v['fetch_time']) / v['fetch']
else:
tmp[host]['avg_fetch_time'] = 0.0
tmp[host]['avg_2xx'] = float(v['2xx']) / self.thr
tmp[host]['avg_3xx'] = float(v['3xx']) / self.thr
tmp[host]['avg_4xx'] = float(v['4xx']) / self.thr
tmp[host]['avg_5xx'] = float(v['5xx']) / self.thr
for status in self.exstatus.keys():
tmp[host]['avg_' + status] = float(v[status]) / self.thr
return tmp
else:
while len(self.trx) -1 < delta:
self.trx.append({})
def outTxt(self,txt):
if self.log:
self.log.info(txt)
else:
if not self.o_json:
os.system('clear')
print(txt)
def txtCmp(self,cmp):
if self.o_json:
return json.dumps(cmp, ensure_ascii=False)
else:
ret = ''
ret+= "%s - %s (interval:%d) %s\n" % (datetime.datetime.fromtimestamp(cmp['@start-time']), datetime.datetime.fromtimestamp(cmp['@end-time']), self.thr, cmp['@info'])
ret+= self.header
if self.mode_raw:
for host in sorted(cmp.keys()):
if host[0] == '@':
continue
v = cmp[host]
val = {'host':host, 'req':v['req'], 'fetch':v['fetch'], 'fetch_time':v['fetch_time'],'no_fetch_time':v['no_fetch_time'], 'totallen':v['totallen'], '2xx':v['2xx'], '3xx':v['3xx'], '4xx':v['4xx'], '5xx':v['5xx']}
suf = ''
for status in self.exstatus.keys():
val[status] = v[status]
suf+="| %("+status+")11d "
ret+= ("%(host)-50s | %(req)11d | %(fetch)11d | %(fetch_time)11f | %(no_fetch_time)13f | %(totallen)11d | %(2xx)11d | %(3xx)11d | %(4xx)11d | %(5xx)11d "+suf+"|\n") % val
else:
for host in sorted(cmp.keys()):
if host[0] == '@':
continue
v = cmp[host]
val = {'host':host, 'mbps':v['mbps'], 'rps':v['rps'], 'hit':v['hit'], 'avg_time':v['avg_time'], 'avg_not_fetch_time':v['avg_not_fetch_time'], 'avg_fetch_time':v['avg_fetch_time'], 'avg_fsize':v['avg_fsize'], 'avg_2xx':v['avg_2xx'], 'avg_3xx':v['avg_3xx'], 'avg_4xx':v['avg_4xx'], 'avg_5xx':v['avg_5xx']}
suf = ''
for status in self.exstatus.keys():
val['avg_'+ status] = v['avg_'+ status]
suf+="| %(avg_"+status+")11f "
ret+= ("%(host)-50s | %(mbps)-11f | %(rps)11f | %(hit)11f | %(avg_time)11f | %(avg_not_fetch_time)11f | %(avg_fetch_time)11f | %(avg_fsize)11f | %(avg_2xx)11f | %(avg_3xx)11f | %(avg_4xx)11f | %(avg_5xx)11f "+suf+"|\n") % val
return ret
def chkFilter(self, forceHost=False, Prefix='[F'):
if not self.filter or forceHost:
return self.buf['Host']
i = 0
for v in self.filter:
i += 1
host = v[1]
reg = v[2]
if self.buf['Host'].endswith(host) and (not reg or reg.match(self.buf['url'])):
return Prefix + str(i) + ']' + v[0]
def appendTrx(self, host, delta):
if delta < 0 or not host:
return
while len(self.trx) -1 < delta:
self.trx.append({})
if host not in self.trx[delta]:
self.trx[delta][host] = {'req':0, 'fetch':0, 'fetch_time':0.0,'no_fetch_time':0, 'totallen':0,'2xx':0,'3xx':0,'4xx':0,'5xx':0}
self.trx[delta][host].update(self.exstatus)
self.trx[delta][host]['req'] += 1
self.trx[delta][host]['totallen'] += self.buf['RespLength']
status = self.buf['status']
if status >= 200:
if status < 300:
self.trx[delta][host]['2xx'] += 1
elif status < 400:
self.trx[delta][host]['3xx'] += 1
elif status < 500:
self.trx[delta][host]['4xx'] += 1
elif status < 600:
self.trx[delta][host]['5xx'] += 1
if str(status) in self.exstatus:
self.trx[delta][host][str(status)] += 1
if self.buf['fetch']:
self.trx[delta][host]['fetch_time'] += self.buf['worktime']
self.trx[delta][host]['fetch'] += 1
else:
self.trx[delta][host]['no_fetch_time'] += self.buf['worktime']
def vapGroupCallBack(self, vap, prv):
cmp = self.makeCmpData()
if cmp:
txt = self.txtCmp(cmp)
self.outTxt(txt)
if self.state == 1:
delta = int((self.buf['time'] - self.time) / self.thr)
if self.mode_a:
self.appendTrx(self.chkFilter(True) , delta)
self.appendTrx(self.chkFilter(False,'[AF') , delta)
else:
self.appendTrx(self.chkFilter() , delta)
self.state = 0
def vapLineCallBack(self, vap, cbd, prv):
ttag = vap.VSL_tags[cbd['tag']]
data = cbd['data'].strip('\0')
if self.state == 0:
#initialize
self.state = 1
self.buf = {'Host':'#n/a','url':'', 'ReqLength':0,'RespLength':0,'BereqLength':0,'BerespLength':0,'url':'','status':0,'req':0,'fetch':0,'pipe':0,'time':0.0,'worktime':0.0}
if ttag == 'Timestamp':
if cbd['level'] == 1 and data[:7] == 'Start: ':
self.buf['req'] = self.buf['req']+1
elif data[:6] == 'Resp: ' or data[:10] == 'PipeSess: ':
spl = data.split(' ')
self.buf['time'] = float(spl[1])
self.buf['worktime'] = float(spl[3])
elif ttag == 'ReqURL' and self.buf['url']=='':
self.buf['url'] = data
elif ttag == 'ReqHeader' and data[:self.fieldlen].lower() == self.field:
self.buf['Host'] = data[self.fieldlen:]
if self.repl:
for r in self.repl:
tmp = r[0].sub(r[1], self.buf['Host'])
if tmp != self.buf['Host']:
self.buf['Host'] = tmp
break
elif ttag == 'RespStatus':
self.buf['status'] = int(data)
elif ttag == 'ReqAcct':
spl = data.split(' ')
self.buf['ReqLength'] = int(spl[2])
self.buf['RespLength'] = int(spl[5])
elif ttag == 'BereqAcct':
spl = data.split(' ')
self.buf['BereqLength'] += int(spl[2])
self.buf['BerespLength'] += int(spl[5])
self.buf['fetch'] += 1
elif ttag == 'PipeAcct':
spl = data.split(' ')
self.buf['ReqLength'] = int(spl[0])
self.buf['BereqLength'] = int(spl[1]) + int(spl[2])
self.buf['BerespLength'] = int(spl[3])
self.buf['RespLength'] = int(spl[3])
self.buf['pipe'] += 1
return 0