588 lines
22 KiB
Python
Executable file
588 lines
22 KiB
Python
Executable file
#!/usr/bin/env python
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#
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# (c)2011-2012 the Boeing Company
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#
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# perfmon.py - CORE server and node performace metrics logger and alarmer
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# server metrics: loadave1, 5, 15, mem, used cpu% of total, cpu1, cpu2, ..., cpun
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# node metrics: throughput, mem, cpu total, usr, sys, wait
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#
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import os, sys, time, re, optparse, signal, commands, pdb
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def readfile(fname):
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lines=[]
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try:
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f = open(fname, "r")
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except:
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if options.timestamp == True:
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print str(time.time()),
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print "ERROR: failed to open file %s\n" % fname
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else :
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lines = f.readlines()
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f.close()
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return lines
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def numcpus():
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lines = readfile("/proc/stat")
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n = 0
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for l in lines[1:]:
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if l[:3] != "cpu":
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break
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n += 1
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return n
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def handler(signum, frame):
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print "stop timestamp:", str(time.time()) + ", cyclecount=", cyclecount, ", caught signal", signum
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sys.exit(0)
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class ServerMetrics(object):
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def __init__(self):
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self.smetrics = { "serverloadavg1" : 0.0,
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"serverloadavg5" : 0.0,
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"serverloadavg15" : 0.0,
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"serverusedmemory" : 0.0,
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"serverusedcputime" : 0.0,
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"processorusedcputime" : [] }
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# set values from val = (nump, ldavg1, ldavg5, adavg15, mem, cpu, p1cpu, p2cpu...)
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def setvalues(self, val):
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self.smetrics["serverloadavg1"] = val[0]
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self.smetrics["serverloadavg5"] = val[1]
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self.smetrics["serverloadavg15"] = val[2]
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self.smetrics["serverusedmemory"] = val[4]
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self.smetrics["serverusedcputime"] = val[5]
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#print self.smetrics.keys(), self.smetrics.values()
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pcpu = []
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for ind in range(5,len(val)):
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pcpu.append(val[ind])
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# print "[" + ",".join(map(lambda(x):str(round(x, 2)), pcpu)) +"]"
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self.smetrics["processorusedcputime"] = pcpu
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#print self.smetrics.keys(), self.smetrics.values()
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def setvalue(self, key, val):
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self.smetrics[key] = val
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def getvalue(self, key):
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return self.smetrics[key]
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def getkeys(self):
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return self.smetrics.keys()
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def tocsv(self):
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rv = "Server"
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for k in self.smetrics:
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# print k, self.smetrics[k]
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if isinstance(self.smetrics[k], float):
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rv += ", %.2f" % self.smetrics[k]
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else:
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if isinstance(self.smetrics[k], list):
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rv += ", [" + \
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", ".join(map(lambda(x):str(round(x, 2)), self.smetrics[k])) \
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+ "]"
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else:
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rv += ", " + str(self.smetrics[k])
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return rv
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def readserverthresholds(filename):
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if filename is None:
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return
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lines = readfile(filename)
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for l in lines:
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mval = l.strip().split('=')
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#print "read line %s" % mval
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if len(mval) > 1 :
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thekey = mval[0].strip()
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theval = mval[1].strip()
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if thekey in serverthresholds.getkeys():
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serverthresholds.setvalue(thekey, float(theval))
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# print thekey," = %.2f" % float(theval)
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def checkserverthreshold(metricval):
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# print out an alarm if a ServerMetrics value crosses threshold
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for key in serverthresholds.getkeys():
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# print "checking threshold of key = ", key
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if key == "processorusedcputime":
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pcpus = metricval.getvalue(key)
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# print key, pcpus, serverthresholds[key]
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for ind in range(0, len(pcpus)):
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# print ind, pcpus[ind]
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if pcpus[ind] > serverthresholds.getvalue(key):
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alarm = ["server", os.uname()[1], str(ind) + key,
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"%.2f" % pcpus[ind], ">", serverthresholds.getvalue(key)]
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if options.timestamp:
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print str(time.time()) + ",",
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print ", ".join(map(lambda(x):str(x), alarm))
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else:
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if metricval.getvalue(key) > serverthresholds.getvalue(key):
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alarm = ["server", os.uname()[1], key,
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"%.2f" % metricval.getvalue(key), ">", serverthresholds.getvalue(key)]
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if options.timestamp:
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print str(time.time()) + ",",
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print ", ".join(map(lambda(x):str(x), alarm))
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def collectservercputimes():
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# return cpu times in ticks of this server total and each processor 3*(1+#cpu) columns
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# (user+nice, sys, idle) from each /proc/stat cpu lines assume columns are:
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# cpu# user nice sys idle iowait irq softirq steal guest (man 5 proc)
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rval = {}
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lines = readfile("/proc/stat")
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for i in range(ncpus + 1):
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items = lines[i].split()
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(user, nice, sys, idle) = map(lambda(x): int(x), items[1:5])
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rval[i] = [user+nice, sys, idle]
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return rval
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def csvservercputimes(cputimes):
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# return a csv string of this server total and each processor's cpu times
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# (usr, sys, idle) in ticks
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rval = ''
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for i in range(len(cputimes)):
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rval += ', '.join(map(lambda(x):str(x), cputimes[i]))
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return rval
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def calcservercputimes(cputimea, cputimeb):
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# return cpu used/total % of this server total and each processor (1+#cpu columns)
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p = {}
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for n in range(ncpus + 1):
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# print cputimeb[n]
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p[n] = []
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for i in range(len(cputimea[n])):
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p[n].append(cputimeb[n][i] - cputimea[n][i])
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# print p[n]
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total = sum(p[n]) # cpu times total delta
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# print total
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if total == 0:
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p[n] = 0.0
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else:
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p[n] = 100 - ((100.0 * p[n][-1]) / total)
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return p
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def collectservermems():
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# return memory (total, free) in KB from proc/meminfo
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lines = readfile("/proc/meminfo")
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mem = map(lambda(x):x.split(), lines[0:2])
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return map(lambda(x):int(x), zip(*mem)[1])
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def csvservermems(mems):
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# return a csv string of this server memory (total, free)
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return ", ".join(map(lambda x: str(x), mems))
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def calcserverusedmem(mems):
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# return int(100*(MemTotal-MemFree)/MemTotal) from /proc/meminfo
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return 100 * (mems[0] - mems[1]) / mems[0]
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def collectservermetrics(cputimes, mems, thresholdcheck):
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# return ServerMetrics object with a dictionary of
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# loadavg1,loadavg5,loadavg15, usedmem%, usedcpu% for total, cpu1, cpu2, ...
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metricval = []
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ldavgs=os.getloadavg()
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for v in ldavgs:
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metricval.append(v)
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metricval.append(calcserverusedmem(mems))
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for i in range(ncpus + 1):
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metricval.append(cputimes[i])
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# print cputimes[i]
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srvmetrics = ServerMetrics()
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srvmetrics.setvalues(metricval)
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# print srvmetrics.tocsv()
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if thresholdcheck:
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checkserverthreshold(srvmetrics)
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return srvmetrics
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def csvservermetrics(srvmetrics):
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# return a csv string of ServerMetrics.tocsv()
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# loadavg1,loadavg5,loadavg15, usedmem%, usedcpu% for total, cpu1, cpu2, ...
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rv = ""
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if options.timestamp:
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rv = str(time.time()) + ", "
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rv += srvmetrics.tocsv()
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return rv
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def csvserverbaseline():
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# return a csv string of raw server metrics data: memfree, memtotal, cpuused, cpusystem, cpuidle
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return "memory (total, free) = " + csvservermems(collectservermems()) + "\ncputime (used, sys, idl) = " + csvservercputimes(collectservercputimes())
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class NodeMetrics(object):
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def __init__(self):
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self.nmetrics = {"nodethroughput" : 0.0,
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"nodeusedmemory" : 0.0,
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"nodetotalcpu" : 0.0,
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"nodeusercpu" : 0.0,
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"nodesystemcpu" : 0.0,
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"nodewaitcpu" : 0.0}
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# set values from val = (throughput, mem, tcpu, ucpu, scpu, wcpu):
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def setvalues(self, val):
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self.nmetrics["nodethroughput"] = val[0]
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self.nmetrics["nodeusedmemory"] = val[1]
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self.nmetrics["nodetotalcpu"] = val[2]
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self.nmetrics["nodeusercpu"] = val[3]
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self.nmetrics["nodesystemcpu"] = val[4]
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self.nmetrics["nodewaitcpu"] = val[5]
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def setvalue(self, key, val):
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self.nmetrics[key] = val
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def getvalue(self, key):
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return self.nmetrics[key]
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def getkeys(self):
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return self.nmetrics.keys()
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def tocsv(self):
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return ", ".join(map(lambda(x):str(x), self.nmetrics.values()))
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class LogSession(object):
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def __init__(self):
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self.nodethresholds = NodeMetrics()
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# set node threshold default values:
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# nodethroughput=20.0, nodeusedmemory=15.0, nodetotalcpu=90.0,
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# nodeusercpu=30.0, nodewaitcpu=50.0, nodesystemcpu=20.0}
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self.nodethresholds.setvalues([20.0, 15.0, 90.0, 30.0, 50.0, 20.0])
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if options.configfile is not None:
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self.readnodethresholds(options.configfile)
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self.pids = {}
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self.nodemetricsA = {}
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self.nodemetricsB = {}
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self.nodemetricsC = {}
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def getpids(self):
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# return dict of all CORE session pids in a dict using node name as the keys
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# parent pid (vnoded) is the first value
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self.pids = {}
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nodes = commands.getstatusoutput("ls /tmp/pycore.%s/*pid" % options.session)
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if nodes[0] != 0:
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# if options.timestamp == True:
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# print str(time.time()),
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# print "CORE session %s has not created nodes" % options.session
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return
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nodes = nodes[1].split('\n')
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for nod in nodes:
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nodename = nod.split('/')[-1].strip(".pid")
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self.pids[nodename] = commands.getoutput("cat %s" % nod)
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# do not expect failure of this command
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procs = commands.getoutput('ps -eo ppid,pid,comm').split('\n')
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# build self.pids dict with key=nodename and val="ppid,pid,cmd"
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for nname in self.pids:
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# print nname, self.pids[nname]
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if self.pids[nname] == "":
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if options.timestamp == True:
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print str(time.time()),
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print "ERROR: null vnoded pid of node: %s" % nname
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else:
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childprocs = []
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ppid = self.pids[nname]
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for proc in procs:
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val=proc.split()
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if ppid == val[1]:
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childprocs.append([val[1], val[2]] )
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if ppid == val[0]:
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childprocs.append([val[1], val[2]])
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self.pids[nname] = childprocs
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# print nname, self.pids[nname]
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return self.pids
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def printsesspids(self):
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if self.pids == {}:
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return {}
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for pp in self.pids:
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if self.pids[pp] != []:
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for ap in range(len(self.pids[pp]) - 1):
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print ", " + self.pids[pp][ap][0], # ap pid
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print ", " + self.pids[pp][ap][1], # ap cmd
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procmetrics = map(lambda(x):str(x),self.pids[pp][ap][-1])
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print ", " + ", ".join(procmetrics),
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nodemetrics = map(lambda(x):str(x), self.pids[pp][-1])
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print ", " + ", ".join(nodemetrics)
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def getprocessmetrics(self, pid):
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# return [cpu#, vsize(kb), ttime, utime, stime, wtime]
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# from a /proc/pid/stat (a single line file) assume columns are:
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# pid(0) comm(1) state ppid pgrp sess tty_nr tpgid flags
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# minflt cmiflt majflt cmajflt # utime(12) stime cutime cstime
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# priority nice num_threads itrealvalue starttime vsize(22) rss rsslim
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# startcode endcode startstack kstkesp signal blocked sigignore sigcatch
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# wchan nswap cnswap exit_signal processor(38) rt_priority
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# policy ioblock guest_time cguest_time (man 5 proc)
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#rval = ProcessMetrics()
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#rval.__init__()
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rval = {}
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lines = readfile("/proc/" + pid + "/stat")
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if lines == []:
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return rval
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items = lines[0].split()
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(utime, stime, cutime, cstime) = map(lambda(x):int(x), items[13:17])
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# print ">???", utime, stime, cutime, cstime
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rval = (items[38], # last run processor
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int(items[22])/1000, # process virtual mem in kb
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utime + stime + cutime + cstime,# totoal time
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utime, # user time
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stime, # system time
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cutime + cstime) # wait time
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# print "pid --- processmetrics", rval
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return rval
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def getnodethroughput(self, pid):
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# return node throughput of total receive and transmit packets in kb
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lines = readfile("/proc/" + pid + "/net/dev")
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if lines == []:
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return -0.00
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ifs = map(lambda(x): x.split(), lines[2:])
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ifm = zip(*ifs)
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rv = sum(map(lambda(x):int(x), ifm[1])) # received bytes
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tr = sum(map(lambda(x):int(x), ifm[9])) # transmited bytes
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#print 'node thruput :', rv, tr, (rv + tr)/1000
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return (rv + tr)/1000
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def getnodemetrics(self, mindex):
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# return NodeMetrics with indexed by nodename, values are rows of
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# [ [ppid, vnoded, [cpu#, vmem(kb), ttime, utime, stime, wtime]],
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# [cpid, cmd, [cpu#, vmem(kb), ttime, utime, stime, wtime]], ... ,
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# [thrput, vmem(kb), ttime, utime, stime, wtime]]
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if mindex == 'a':
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metricref = self.nodemetricsA
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else:
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metricref = self.nodemetricsB
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self.getpids()
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# print " inside getnodemetrics()", self.pids
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if self.pids == {}:
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return {}
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for nod in self.pids:
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nmetric = NodeMetrics()
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nmetric.__init__()
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nodeapps = {}
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for ap in range(len(self.pids[nod])): # get each process metrics
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procm = self.getprocessmetrics(self.pids[nod][ap][0])
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if procm == []:
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if options.timestamp == True:
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print str(time.time()),
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print "WARNING: transient process", self.pids[nod][ap][1], \
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"/", self.pids[nod][ap][0], "on node %s" % nod
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else:
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nodeapps[ap] = procm
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self.pids[nod][ap].append(nodeapps[ap])
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processm = zip(*nodeapps.values()) # get overall node metrics
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# print processm
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if len(processm) > 0:
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# if nod == 'n6':
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# print nod, self.getnodethroughput(self.pids[nod][0][0])
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nmetric.setvalues(( self.getnodethroughput(self.pids[nod][0][0]),
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sum(map(lambda(x):int(x), processm[1])), # vsize(kb)
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sum(map(lambda(x):int(x), processm[2])), # ttime
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sum(map(lambda(x):int(x), processm[3])), # utime
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sum(map(lambda(x):int(x), processm[4])), # stime
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sum(map(lambda(x):int(x), processm[5])))) # wtime
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metricref[nod] = nmetric
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# print nod, self.pids[nod][0][0], metricref[nod].tocsv()
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return metricref
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def setnodemetricsC(self, key, val):
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self.nodemetricsC[key] = val
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def printnodemetrics(self, mindex):
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if mindex == 'c':
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mm = self.nodemetricsC
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else:
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if mindex == 'a':
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mm = self.nodemetricsA
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else:
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mm = self.nodemetricsB
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for k in self.nodemetricsC:
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if options.timestamp:
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print str(time.time()) + ",",
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print k, ",", mm[k].tocsv()
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def readnodethresholds(self, filename):
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if filename is None:
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return
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lines = readfile(filename)
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for l in lines:
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mval = l.strip().split('=')
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# print "read line %s" % mval
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if len(mval) > 1 :
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thekey = mval[0].strip()
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theval = mval[1].strip()
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if thekey in self.nodethresholds.getkeys():
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self.nodethresholds.setvalue(thekey, float(theval))
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#print thekey," = %.2f" % float(theval)
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def checknodethresholds(self, nname):
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# print "check node thresholds", nname
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calcm = self.nodemetricsC[nname]
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for keyname in self.nodethresholds.getkeys():
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# print "HIII", keyname, calcm.getvalue(keyname), self.nodethresholds.getvalue(keyname)
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if float(calcm.getvalue(keyname)) > float(self.nodethresholds.getvalue(keyname)):
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# print calculatednodem.getvalue(m)
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alarm = ["node", nname + "/" + self.pids[nname][0][0], keyname,\
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calcm.getvalue(keyname), ">", self.nodethresholds.getvalue(keyname)]
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if options.timestamp:
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print str(time.time()) + ",",
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print ", ".join(map(lambda(x):str(x), alarm))
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def calcnodemetrics(self, cputimea, cputimeb, mems):
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# return a dict of nodemetrics indexed by node name
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# nodemetrics[nodename][-1] = node/host%
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p = []
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for i in range(len(cputimeb[0])):
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p.append(cputimeb[0][i] - cputimea[0][i])
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hostusedcpu = p[0] + p[1]
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hostusedmem = mems[0] - mems[1]
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if hostusedcpu == 0:
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print "WARNING: host used cpu = 0, ", p[0], p[1]
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hostusedcpu = 1
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if hostusedmem == 0:
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print "WARNING: host used mem = 0, ", mems[0], mems[1]
|
|
hostusedmem = 1
|
|
|
|
nodesa = self.nodemetricsA
|
|
nodesb = self.nodemetricsB
|
|
for nod in nodesb:
|
|
calcm = self.nodemetricsC
|
|
calcm = NodeMetrics()
|
|
calcm.__init__()
|
|
if (nod in nodesa):
|
|
try:
|
|
if (nodesb[nod] == []) | (nodesa[nod] == []) | \
|
|
( False == isinstance(nodesb[nod], NodeMetrics)) | \
|
|
( False == isinstance(nodesa[nod], NodeMetrics)):
|
|
if options.timestamp == True:
|
|
print str(time.time()),
|
|
print "Warning: nodes %s is not fully instanciated" % nod
|
|
else:
|
|
# calc throughput kbps
|
|
#print "node b : ", nodesb[nod].tocsv()
|
|
#print "node a : ", nodesa[nod].tocsv()
|
|
#if nod == 'n6':
|
|
#print nodesb[nod].getvalue("nodethroughput"), nodesa[nod].getvalue("nodethroughput")
|
|
calcm.setvalue("nodethroughput", "%.2f" % (8 * (nodesb[nod].getvalue("nodethroughput") \
|
|
- nodesa[nod].getvalue("nodethroughput")) / options.interval))
|
|
# calc mem node used / host used
|
|
calcm.setvalue("nodeusedmemory", "%.2f" % (100.0 * (nodesb[nod].getvalue("nodeusedmemory") / hostusedmem)))
|
|
|
|
# calc total cpu time node / host
|
|
calcm.setvalue("nodetotalcpu", "%.2f" % (100.0 * (nodesb[nod].getvalue("nodetotalcpu")\
|
|
- nodesa[nod].getvalue("nodetotalcpu")) /hostusedcpu))
|
|
# calc user cpu time node / host
|
|
calcm.setvalue("nodeusercpu", "%.2f" % (100.0 * (nodesb[nod].getvalue("nodeusercpu")\
|
|
- nodesa[nod].getvalue("nodeusercpu")) /hostusedcpu))
|
|
# calc system cpu time node / host
|
|
calcm.setvalue("nodesystemcpu", "%.2f" % (100.0 * (nodesb[nod].getvalue("nodesystemcpu")\
|
|
- nodesa[nod].getvalue("nodesystemcpu")) /hostusedcpu))
|
|
# calc waitcpu time node / host
|
|
calcm.setvalue("nodewaitcpu", "%.2f" % (100.0 * (nodesb[nod].getvalue("nodewaitcpu")\
|
|
- nodesa[nod].getvalue("nodewaitcpu")) /hostusedcpu))
|
|
|
|
#print nod, calcm.tocsv()
|
|
#print '=========================='
|
|
logsession.nodemetricsC[nod] = calcm
|
|
# logsession.printnodemetrics('c')
|
|
|
|
if options.alarm is not None:
|
|
logsession.checknodethresholds(nod)
|
|
except IndexError:
|
|
pass
|
|
else:
|
|
print "Warning: transient node %s " % nod
|
|
|
|
return nodesb
|
|
|
|
def main():
|
|
usagestr = "%prog [-h] [options] [args]\n\nLog server and optional CORE session metrics to stdout."
|
|
parser = optparse.OptionParser(usage = usagestr)
|
|
parser.set_defaults(interval=2, timestamp=False,
|
|
configfile = "/etc/core/perflogserver.conf",\
|
|
alarm = True, session = None)
|
|
parser.add_option("-i", "--interval", dest = "interval", type = int,
|
|
help = "seconds to wait between samples; default=%s" %
|
|
parser.defaults["interval"])
|
|
parser.add_option("-t", "--timestamp", action = "store_true",
|
|
dest = "timestamp",
|
|
help = "include timestamp on each line")
|
|
parser.add_option("-c", "--configfile", dest = "configfile",
|
|
type = "string",
|
|
help = "read threshold values from the specified file;\
|
|
default=%s" % parser.defaults["configfile"])
|
|
parser.add_option("-a", "--alarm", action = "store_true",
|
|
dest = "alarm",
|
|
help = "generate alarms based threshold check on each cycle")
|
|
parser.add_option("-s", "--session", dest = "session", type = int,
|
|
help = "CORE session id; default=%s" %
|
|
parser.defaults["session"])
|
|
global options
|
|
global ncpus
|
|
global serverthresholds
|
|
global logsession
|
|
global cyclecount
|
|
|
|
(options, args) = parser.parse_args()
|
|
# print options
|
|
|
|
signal.signal(signal.SIGINT, handler)
|
|
signal.signal(signal.SIGTERM, handler)
|
|
|
|
ncpus = numcpus()
|
|
|
|
# server threshold dictionary - a ServerMetrics instant with default values
|
|
serverthresholds = ServerMetrics()
|
|
# set to server threshold default values: serverloadavg1=3.5,
|
|
# serverloadavg5=3.5, serverloadavg15=3.5, serverusedmemory=80.0,
|
|
# serverusedcputime=80.0, processorusedcputime=90.0
|
|
serverthresholds.setvalues([3.5, 3.5, 3.5, 80.0, 80.0, 90.0])
|
|
if options.alarm is True:
|
|
# read server threshold values from configuration file
|
|
readserverthresholds(options.configfile)
|
|
|
|
if options.session is not None:
|
|
logsession = LogSession()
|
|
# print logsession
|
|
|
|
# mark host log baseline
|
|
print "server: ", ", ".join(map(lambda(x):str(x), os.uname())), ",", ncpus, "CPU cores"
|
|
print "start timestamp:", time.time(), ", baseline data: "
|
|
print csvserverbaseline()
|
|
print "server metrics: ", ", ".join(map(lambda(x):str(x), serverthresholds.getkeys()))
|
|
if options.session is not None:
|
|
print "node metrics: nodename, ", ", ".join(map(lambda(x):str(x), logsession.nodethresholds.getkeys()))
|
|
|
|
cyclecount = 0
|
|
while True:
|
|
cputimea = collectservercputimes()
|
|
if options.session is not None:
|
|
nodesa = logsession.getnodemetrics('a')
|
|
# print "nodes a:", nodesa
|
|
|
|
time.sleep(options.interval)
|
|
|
|
cputimeb = collectservercputimes()
|
|
mems = collectservermems()
|
|
|
|
calccputime = calcservercputimes(cputimea, cputimeb)
|
|
m = csvservermetrics(collectservermetrics(calccputime, mems, options.alarm))
|
|
print m
|
|
|
|
if options.session is not None:
|
|
nodesb = logsession.getnodemetrics('b')
|
|
# print "nodes b:", nodesb
|
|
if nodesb != {}:
|
|
logsession.calcnodemetrics(cputimea, cputimeb, mems)
|
|
logsession.printnodemetrics('c')
|
|
|
|
sys.stdout.flush()
|
|
cyclecount = cyclecount + 1
|
|
|
|
if __name__ == "__main__":
|
|
main()
|