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在工作中遇到要对开发的接口做压力测试,以前没有做过开清楚什么压测工具好用,正好接口不是什么复杂的接口,curl -X post "接口地址" --data-binary @二进制认证文件 OK!(@表示验证数据是文件类型)
创新互联公司10多年成都定制网站服务;为您提供网站建设,网站制作,网页设计及高端网站定制服务,成都定制网站及推广,对成都玻璃钢雕塑等多个领域拥有多年的网站推广经验的网站建设公司。既然这样那我就写个脚本好了,脚本内容如下:
======================================================================
#!/usr/bin/evn python
#_coding:utf8_
from multiprocessing import Pool,Queue
import time,subprocess,os
class YaCe(object):
def init(self,api,binfile,maxpool,qu,maxrequest=100000,status="success"):
self.api = api
self.binfile = binfile
self.status = status
self.maxpool = maxpool
self.maxrequest = maxrequest
self.qu = qu
def prorequest(self):
for i in range(self.maxrequest):
self.qu.put(i)
print(i)
for i in range(int(self.maxpool)):
self.qu.put(None)
print("None")
def conumers(self,i):
while True:
data = self.qu.get(True)
if data == None:
print("进程%s任务完成..."%i)
break
else:
command = subprocess.getoutput("time curl -X POST --connect-timeout 10 '%s' --data-binary @%s"%(self.api,os.getcwd()+"/"+self.binfile))
if self.status == "success":
logfile = os.getcwd()+"/"+"headbeat.log"+"_%s"%date_time
if "CgoyMDAwMDAwMDAw" in command:
print("进程%s__%s..."%(str(i),str(data)))
with open(logfile,"a") as f:
f.write(command+"\n")
f.close()
else:
print("进程%s__%s..."%(str(i),str(data)))
with open(logfile,"a") as f:
f.write("Faild\n")
f.write(command+"\n")
f.close()
else:
logfile = os.getcwd()+"/"+"roomlist.log"+"_%s"%date_time
#print("time curl -X POST '%s' --data-binary @%s"%(self.api,os.getcwd()+"/"+self.binfile))
command = subprocess.getoutput("time curl -X POST '%s' --data-binary @%s"%(self.api,os.getcwd()+"/"+self.binfile))
if "CAES+" in command:
print("进程%s__%s..."%(str(i),str(data)))
info = command.split('\n')[-3:]
info1 = "\n".join(info)
with open(logfile,"a") as f:
f.write(info1+"\n")
f.close()
else:
print("进程%s__%s..."%(str(i),str(data)))
with open(logfile,"a") as f:
f.write("Faild\n")
f.write(command+"\n")
f.close()
def multirun(self):
ps = int(int(self.maxpool) - 1)
p = Pool(ps)
for i in range(self.maxpool):
print("开启子进程%s"%i)
p.apply_async(self.conumers,args=(self,i))
print('等待所有添加的进程运行完毕。。。')
p.close()
p.join()
endtime = time.strftime("%Y%m%d_%X",time.localtime())
if self.status == "success":
logfile = os.getcwd()+"/"+"headbeat.log"+"_%s"%date_time
else:
logfile = os.getcwd() + "/" + "roomlist.log"+"_%s"%date_time
with open(logfile,"a") as f:
f.write("============[%s]============\n"%endtime)
f.close()
print('End!!,PID:%s'% os.getpid())
if name == "main":
q = Queue()
Yc = YaCe('压测接口','二进制证认文件',开多少个进程,queue(队列),maxrequest=100(模拟测试多少次访问),status="faild"(这里因为测试的两个接口,返回不一样用status参数区分测试的接口的返回值处理))
Yc.prorequest()
print("++++++")
global date_time
datetime = time.strftime("%Y%m%d%X",time.localtime())
Yc.multirun()
====================================================================================
问题
到这里写完了,测试的问题来了,从脚本来看如果运行成功,会有多进程在处理队列的输出,可是结果的输出确是如下:
01
2
3
4
5
6
7
8
9
None
None
++++++
开启子进程0
开启子进程1
等待所有添加的进程运行完毕。。。
End!!,PID:4819
原因
子进程conumers方法完全没有运行,也没有报错这就尴尬了;查了大量的文档资料;发现这个pool方法都使用了queue.Queue将task传递给工作进程。multiprocessing必须将数据序列化以在进程间传递。方法只有在模块的顶层时才能被序列化,跟类绑定的方法不能被序列化,就会出现上面的异常 ; 那肿么办,我不是一个轻易放弃的人,终于被我找到了方法;
注意
解决方作者是在python3下测试了,python2下用脚本的subprocess要换成value,command = commands.getstatusoutput
解决方法1(亲测)
1.首先要看报错,需要对脚本修改如下:
YaCe类下的multirun方法下修改
for i in range(self.maxpool):
print("开启子进程%s"%i)
p.apply_async(self.conumers,args=(self,i))
为
for i in range(self.maxpool):
print("开启子进程%s"%i)
res = p.apply_async(self.conumers,args=(self,i))
print(res.get)
这就可以看到报错:
cPickle.PicklingError: Can't pickle
2.解决方法如下在脚本中加一个新的函数
(1).def conumers_wrapper(cls_instance,i):
return cls_instance.conumers(i)
(2).修改YaCe下multirun方法
for i in range(self.maxpool):
print("开启子进程%s"%i)
res = p.apply_async(self.conumers,args=(self,i))
print(res.get())
为
for i in range(self.maxpool):
print("开启子进程%s"%i)
res = p.apply_async(conumers_wrapper,args=(self,i))
print(res.get)
问题解决了,运行一下脚本结果还有报错:
RuntimeError: Queue objects should only be shared between processes through inheritance
原因
这里不可以用Queue,要改用Manager.Queue;因为进程之前的同共离用Queue会用问题;
完结
最终代码如下:
==================================================================================
#!/usr/bin/evn python
#_coding:utf8_
from multiprocessing import Pool,Queue,Manager
import time,subprocess,os
class YaCe(object):
def init(self,api,binfile,maxpool,qu,maxrequest=100000,status="success"):
self.api = api
self.binfile = binfile
self.status = status
self.maxpool = maxpool
self.maxrequest = maxrequest
self.qu = qu
def prorequest(self):
for i in range(self.maxrequest):
self.qu.put(i)
print(i)
for i in range(int(self.maxpool)):
self.qu.put(None)
print("None")
def conumers(self,i):
while True:
data = self.qu.get(True)
if data == None:
print("进程%s任务完成..."%i)
break
else:
#print("time curl -X POST '%s' --data-binary @%s"%(self.api,os.getcwd()+"/"+self.binfile))
command = subprocess.getoutput("time curl -X POST --connect-timeout 10 '%s' --data-binary @%s"%(self.api,os.getcwd()+"/"+self.binfile))
#command = subprocess.getoutput("time curl -X POST '%s' --data-binary @%s"%(self.api,os.getcwd()+"/"+self.binfile))
if self.status == "success":
logfile = os.getcwd()+"/"+"headbeat.log"+"_%s"%date_time
if "CgoyMDAwMDAwMDAw" in command:
print("进程%s__%s..."%(str(i),str(data)))
with open(logfile,"a") as f:
f.write(command+"\n")
f.close()
else:
with open(logfile,"a") as f:
f.write("Faild\n")
f.write(command+"\n")
f.close()
else:
logfile = os.getcwd()+"/"+"roomlist.log"+"_%s"%date_time
#print("time curl -X POST '%s' --data-binary @%s"%(self.api,os.getcwd()+"/"+self.binfile))
command = subprocess.getoutput("time curl -X POST --connect-timeout 10 '%s' --data-binary @%s"%(self.api,os.getcwd()+"/"+self.binfile))
#command = subprocess.getoutput("time curl -X POST '%s' --data-binary @%s"%(self.api,os.getcwd()+"/"+self.binfile))
if "CAES+" in command:
print("进程%s__%s..."%(str(i),str(data)))
info = command.split('\n')[-3:]
info1 = "\n".join(info)
with open(logfile,"a") as f:
f.write(info1+"\n")
f.close()
else:
print("进程%s__%s..."%(str(i),str(data)))
with open(logfile,"a") as f:
f.write("Faild\n")
f.write(command+"\n")
f.close()
def multirun(self):
ps = int(int(self.maxpool) - 1)
p = Pool(ps)
for i in range(self.maxpool):
print("开启子进程%s"%i)
p.apply_async(conumers_wrapper,args=(self,i))
#print(res.get)
print('等待所有添加的进程运行完毕。。。')
p.close()
p.join()
endtime = time.strftime("%Y%m%d_%X",time.localtime())
if self.status == "success":
logfile = os.getcwd()+"/"+"headbeat.log"+"_%s"%date_time
else:
logfile = os.getcwd() + "/" + "roomlist.log"+"_%s"%date_time
with open(logfile,"a") as f:
f.write("============[%s]============\n"%endtime)
f.close()
print('End!!,PID:%s'% os.getpid())
def conumers_wrapper(cls_instance,i):
return cls_instance.conumers(i)
if name == "main":
q = Manager().Queue()
Yc = YaCe('压测接口','二进制证认文件',开多少个进程,queue(队列),maxrequest=100(模拟测试多少次访问),status="faild"(这里因为测试的两个接口,返回不一样用status参数区分测试的接口的返回值处理))
Yc.prorequest()
print("++++++")
global date_time
datetime = time.strftime("%Y%m%d%X",time.localtime())
Yc.multirun()
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