python - 出现异常错误 “Exception in thread Thread-13 (most likely raised during interpreter shutdown)”

Question

我写了一个简单的脚本，它使用线程从服务中检索数据。

    __author__ = 'Igor'
import requests
import time
from multiprocessing.dummy import Pool as ThreadPool

ip_list = []
good_ip_list = []
bad_ip_list = []
progress = 0

with open('/tmp/ip.txt') as f:
    ip_list = f.read().split()

def process_request(ip):
    global progress
    progress += 1
    if progress % 10000 == 0:
        print 'Processed ip:', progress, '...'
    r = requests.get('http://*****/?ip='+ip, timeout=None)
    if r.status_code == 200:
        good_ip_list.append(ip)
    elif r.status_code == 400:
        bad_ip_list.append(ip)
    else:
        print 'Unknown http code received, aborting'
        exit(1)

pool = ThreadPool(16)
try:
    pool.map(process_request, ip_list)
except:
    for name, ip_list in (('/tmp/out_good.txt', good_ip_list),     ('/tmp/out_bad.txt', bad_ip_list)):
        with open(name, 'w') as f:
            for ip in ip_list:
                print>>f, ip

但是在处理了一些请求(40k-50k)之后我收到:

线程 Thread-7 中的异常(很可能在解释器关闭期间引发):追溯(最近一次通话):进程结束，退出代码为 0

尝试更改服务设置:

        <timeout>999</timeout>
        <connectionlimit>600</connectionlimit>
        <httpthreads>32</httpthreads>
        <workerthreads>128</workerthreads>

但还是一样的错误。谁能帮我 - 怎么了？

Answer 1

感谢所有帮助我解决这个问题的人。重写了整个代码，现在可以完美运行了:

__author__ = 'kulakov'
import requests
import time
from multiprocessing.dummy import Pool as ThreadPool

ip_list = []
good_ip_list = []
bad_ip_list = []

with open('/tmp/ip.txt') as f:
    ip_list = f.read().split()

s = requests.Session()
def process_request(ip):
    r = s.get('http://*****/?ip='+ip, timeout=None)
    if r.status_code == 200:
        # good_ip_list.append(ip)
        return (ip, True)
    elif r.status_code == 400:
        # bad_ip_list.append(ip)
        return (ip, False)
    else:
        print 'Unknown http code received, aborting'
        exit(1)

pool = ThreadPool(16)
for ip, isOk in pool.imap(process_request, ip_list):
    if isOk:
        good_ip_list.append(ip)
    else:
        bad_ip_list.append(ip)
pool.close()
pool.join()

for name, ip_list in (('/tmp/out_good.txt', good_ip_list),    ('/tmp/out_bad.txt', bad_ip_list)):
    with open(name, 'w') as f:
        for ip in ip_list:
            print>>f, ip

一些新的有用信息:

1) 在一个函数 process_request 中的不同线程中写入数据真的是个坏主意，现在它返回 statement(true\false) 和 ip。

2) keep alive 默认完全支持requests，但是如果你想使用它，你必须创建一个对象实例 Session，并仅对其应用 get 方法:

s = requests.Session()
r = s.get('http://*****/?ip='+ip, timeout=None)