Python提示[Errno 32]Broken pipe导致线程crash错误解决方法
这篇文章主要介绍了Python提示[Errno 32]Broken pipe导致线程crash错误解决方法,是ThreadingHTTPServer实现http服务中经常会遇到的问题,需要的朋友可以参考下
本文实例讲述了Python提示[Errno 32]Broken pipe导致线程crash错误解决方法。分享给大家供大家参考。具体方法如下：
1. 错误现象
ThreadingHTTPServer 实现的 http 服务，如果客户端在服务器返回前，主动断开连接，则服务器端会报 [Errno 32] Broken pipe 错，并导致处理线程 crash.
下面先看个例子,python 版本: 2.7
示例代码
复制代码 代码如下:
#!/usr/bin/env python
#!coding=utf-8
import os
import time
import socket
import threading
from BaseHTTPServer import HTTPServer ,BaseHTTPRequestHandler
from SocketServer import ThreadingMixIn
class RequestHandler(BaseHTTPRequestHandler):
def do_GET(self):
"""
处理get请求
"""
query=self.path
print "query: %s thread=%s" % (query, str(threading.current_thread()))
#ret_str="<html>" + self.path + "<br>" + str(self.server) + "<br>" + str(self.responses) + "</html>"
ret_str="<html>" + self.path + "<br>" + str(self.server) + "</html>"
time.sleep(5)
try:
self.send_response(200)
self.send_header('Content-type','text/html')
self.end_headers()
self.wfile.write(ret_str)
except socket.error, e:
print "socket.error : Connection broke. Aborting" + str(e)
self.wfile._sock.close() # close socket
self.wfile._sock=None
return False
print "success prod query :%s" % (query)
return True
#多线程处理
class ThreadingHTTPServer(ThreadingMixIn,HTTPServer):
pass
if __name__ == '__main__':
serveraddr = ('',9001)
ser = ThreadingHTTPServer(serveraddr,RequestHandler)
ser.serve_forever()
sys.exit(0)
#!coding=utf-8
import os
import time
import socket
import threading
from BaseHTTPServer import HTTPServer ,BaseHTTPRequestHandler
from SocketServer import ThreadingMixIn
class RequestHandler(BaseHTTPRequestHandler):
def do_GET(self):
"""
处理get请求
"""
query=self.path
print "query: %s thread=%s" % (query, str(threading.current_thread()))
#ret_str="<html>" + self.path + "<br>" + str(self.server) + "<br>" + str(self.responses) + "</html>"
ret_str="<html>" + self.path + "<br>" + str(self.server) + "</html>"
time.sleep(5)
try:
self.send_response(200)
self.send_header('Content-type','text/html')
self.end_headers()
self.wfile.write(ret_str)
except socket.error, e:
print "socket.error : Connection broke. Aborting" + str(e)
self.wfile._sock.close() # close socket
self.wfile._sock=None
return False
print "success prod query :%s" % (query)
return True
#多线程处理
class ThreadingHTTPServer(ThreadingMixIn,HTTPServer):
pass
if __name__ == '__main__':
serveraddr = ('',9001)
ser = ThreadingHTTPServer(serveraddr,RequestHandler)
ser.serve_forever()
sys.exit(0)
运行服务
./thread_http_server_error.py
第1次 curl ，等待返回
复制代码 代码如下:
[~]$curl -s 'http://10.232.41.142:9001/hello1′
<html>/hello1<br><__main__.ThreadingHTTPServer instance at 0x37483b0></html>[~]$
此时服务器端输出日志如下：
$./thread_http_server_error.py
query: /hello1 thread=
search041142.sqa.cm4.tbsite.net – - [15/May/2014 15:02:27] “GET /hello1 HTTP/1.1″ 200 -
success prod query :/hello1
<html>/hello1<br><__main__.ThreadingHTTPServer instance at 0x37483b0></html>[~]$
此时服务器端输出日志如下：
$./thread_http_server_error.py
query: /hello1 thread=
search041142.sqa.cm4.tbsite.net – - [15/May/2014 15:02:27] “GET /hello1 HTTP/1.1″ 200 -
success prod query :/hello1
第2次 curl ，不等待返回，ctrl +C 来模拟客户端断开
复制代码 代码如下:
[~]$curl -s 'http://10.232.41.142:9001/hello2′
[~]$ ctrl+C
[~]$ ctrl+C
此时服务器端输出日志如下：
复制代码 代码如下:
query: /hello2 thread=
search041142.sqa.cm4.tbsite.net – - [15/May/2014 15:33:10] “GET /hello2 HTTP/1.1″ 200 -
socket.error : Connection broke. Aborting[Errno 32] Broken pipe
—————————————-
Exception happened during processing of request from ('10.232.41.142′, 48769)
Traceback (most recent call last):
File “/home/wuzhu/tools/python_2_7_1/lib/python2.7/SocketServer.py”, line 582, in process_request_thread
self.finish_request(request, client_address)
File “/home/wuzhu/tools/python_2_7_1/lib/python2.7/SocketServer.py”, line 323, in finish_request
self.RequestHandlerClass(request, client_address, self)
File “/home/wuzhu/tools/python_2_7_1/lib/python2.7/SocketServer.py”, line 639, in __init__
self.handle()
File “/home/wuzhu/tools/python_2_7_1/lib/python2.7/BaseHTTPServer.py”, line 337, in handle
self.handle_one_request()
File “/home/wuzhu/tools/python_2_7_1/lib/python2.7/BaseHTTPServer.py”, line 326, in handle_one_request
self.wfile.flush() #actually send the response if not already done.
File “/home/wuzhu/tools/python_2_7_1/lib/python2.7/socket.py”, line 303, in flush
self._sock.sendall(view[write_offset:write_offset+buffer_size])
AttributeError: 'NoneType' object has no attribute 'sendall'
search041142.sqa.cm4.tbsite.net – - [15/May/2014 15:33:10] “GET /hello2 HTTP/1.1″ 200 -
socket.error : Connection broke. Aborting[Errno 32] Broken pipe
—————————————-
Exception happened during processing of request from ('10.232.41.142′, 48769)
Traceback (most recent call last):
File “/home/wuzhu/tools/python_2_7_1/lib/python2.7/SocketServer.py”, line 582, in process_request_thread
self.finish_request(request, client_address)
File “/home/wuzhu/tools/python_2_7_1/lib/python2.7/SocketServer.py”, line 323, in finish_request
self.RequestHandlerClass(request, client_address, self)
File “/home/wuzhu/tools/python_2_7_1/lib/python2.7/SocketServer.py”, line 639, in __init__
self.handle()
File “/home/wuzhu/tools/python_2_7_1/lib/python2.7/BaseHTTPServer.py”, line 337, in handle
self.handle_one_request()
File “/home/wuzhu/tools/python_2_7_1/lib/python2.7/BaseHTTPServer.py”, line 326, in handle_one_request
self.wfile.flush() #actually send the response if not already done.
File “/home/wuzhu/tools/python_2_7_1/lib/python2.7/socket.py”, line 303, in flush
self._sock.sendall(view[write_offset:write_offset+buffer_size])
AttributeError: 'NoneType' object has no attribute 'sendall'
2. 原因分析
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