面向系统测试的一种ganglia指标扩展的方法
ganlia 和 nagios 等工具，是业界优秀的监控告警工具；这种工具主要是面向运维的，也可以用来进行性能稳定性的
测试。
面对分布式
系统测试，耗时都比较长，往往一台机器安装多套系统，影响监控指标的准确性。
下面是一种进行进程级别监控的方n法，可以通过扩展，集群的监控力度；同时将监控脚本加入告警，防止脚本异常退出（Nagios扩展另文描述）
GEngin.py：总体的引擎，根据conf下配置文件的配置项，轮询监控指标，调用gmetric广播出去
conf：目录中保存metrix配置文件，配置参数指标
flag：目录中仅保存一个flag文件，文件名就是任务名，监控指标将根据任务名分离，便于汇总统计对比
log： 目录中记录GEngin的log及每个指标收取脚本的log
pid： GEngin的pid 为告警脚本使用
script： 指标收集的具体的脚本
cat conf/metrix.cfg:
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YARN|ResourceManager|cpu|ResourceManager_cpu.py|ResourceManager_cpu.txt|int16|Percent|
YARN|ResourceManager|mem|ResourceManager_mem.py|ResourceManager_mem.txt|int16|Percent|
YARN|ResourceManager|lsof|ResourceManager_lsof.py|ResourceManager_lsof.txt|int16|Number|
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ls flag/:
yarntestD001.flag
ll log/:
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-rw-r--r-- 1 yarn users 168 Mar 19 20:02 yarntestD001_YARNResourceManagercputdw-10-16-19-91.txt
-rw-r--r-- 1 yarn users 168 Mar 19 20:02 yarntestD001_YARNResourceManagerlsoftdw-10-16-19-91.txt
-rw-r--r-- 1 yarn users 168 Mar 19 20:02 yarntestD001_YARNResourceManagermemtdw-10-16-19-91.txt
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ll script/:
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-rw-r--r-- 1 yarn users 882 Feb 28 17:20 ResourceManager_cpu.py
-rw-r--r-- 1 yarn users 1093 Feb 28 17:45 ResourceManager_lsof.py
-rw-r--r-- 1 yarn users 882 Feb 28 17:18 ResourceManager_mem.py
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cat script/SAMPLE.py:
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#!/usr/bin/env python
# coding=gbk
import sys
import os
import datetime
import time
def CheckInput():
"Check Input parameters , they should be a pysql file."
if len(sys.argv) < 2 :
print "Usage: " + sys.argv[0] + " FileNamePrefix "
sys.exit()
if __name__== '__main__':
CheckInput() # check parameter and asign PyFileName
## result file log to directory of LOG
LogFile = open("log/"+sys.argv[1],'a')
res = "29"
## Interface to Gmetrix ,must be value:Value
print "value:"+res
ntime = str(time.strftime("%Y-%m-%d %X",time.localtime()))
LogFile.write(ntime+" "+res+"\n")
LogFile.close()
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cat GEngin.py :
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#!/usr/bin/env python
# coding=gbk
import sys
import os
import random
import datetime
import time
from time import sleep
def CheckInput():
"Check Input parameters , they should be a pysql file."
print "Usage : python ./" + sys.argv[0]
if not os.path.exists("conf/metrix.cfg"):
print "Error : config file conf/metrix.cfg does not exsits ! "
sys.exit()
## kill previous proc For restart
if os.path.exists("pid/pid.txt"):
pfile = open("pid/pid.txt",'r')
for p in pfile:
pid = p.strip()
os.system("kill -9 "+pid)
pfile.close()
os.system("rm pid/pid.txt")
pfile = open("pid/pid.txt",'a')
pid = os.getpid()
pfile.write(str(pid))
pfile.close()
if __name__== '__main__':
CheckInput() # check parameter and asign PyFileName
LogFile = open("log/"+sys.argv[0]+".log",'a')
# File Prefix of logs
filePre="noTask"
for fi in os.listdir("flag"):
if fi.endswith(".flag"):
filePre=fi.split('.')[0].strip()
# host name for gmetrix
host=""
f = os.popen("hostname")
for res in f:
if res.startswith("tdw"):
host=res.strip()
LogFile.write("******** Start task "+filePre+" monitoring *******\n")
# Main Loop untile flag is null
while True:
if len(os.listdir("flag")) < 1 or len(os.listdir("flag")) > 1:
sleep(10)
LogFile.write("Finish previous take "+filePre+" .... No task ,Main loop .....\n")
LogFile.flush()
continue
if len(os.listdir("flag")) == 1 and not os.path.exists("flag/"+filePre+".flag"):
LogFile.write("Finish previous take "+filePre+".....\n")
for fi in os.listdir("flag"):
if fi.endswith(".flag"):
filePre=fi.split('.')[0].strip()
LogFile.write("***** Start New Task "+filePre+" monitoring *******\n")
# Deal with config metrix one by one
insFile = open("conf/metrix.cfg",'r')
for line in insFile:
mGroup,mName,mItem,mShell,mFile,mUnit,mWeiht,nouse = line.split('|');
outPutFile = filePre+"_"+mGroup+mName+mItem+host+".txt"
value = ""
if mShell.endswith(".py"):
f = os.popen("python script/"+mShell+" "+outPutFile)
for res in f:
if res.startswith("value:"):
value=res.split(':')[1].strip()
else:
value="0"
f.close()
if mShell.endswith(".sh"):
f = os.popen("script/"+mShell+" "+outPutFile)
for res in f:
if res.startswith("value:"):
value=res.split(':')[1].strip()
else:
value="0"
f.close()
cmd = "gmetric -n "+mGroup+"_"+mName+"_"+mItem+" -v "+value+" -t "+mUnit+" -u "+mWeiht+" -S "+host+":"+host
print cmd
f = os.popen(cmd)
ntime = str(time.strftime("%Y-%m-%d %X",time.localtime()))
LogFile.write(ntime+" "+cmd+"\n")
insFile.close()
LogFile.flush()
if len(os.listdir("flag")) == 1 and os.path.exists("flag/"+filePre+".flag"):
sleep(8)
LogFile.close()
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Ganglia 中显示的监控指标：
将运行的GEngin.py脚本加入监控，防止进程异常退出