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Using BaseHTTPServer to encounter system blocking - zzs027 - Mar-05-2020

BaseHTTPServer encounter system blocking

I write my code to process the http requests using Post method like this
    
def do_POST(self):
    t1 = time.time()
    mpath, margs = urllib.request.splitquery(self.path)
    datas        = self.rfile.read(int(self.headers['content-length']))
then I find that system call was blocked when receiving connection request
I used strace command, it show
Error:
strace: Process 28286 attached
recvfrom(4,
used gdb, it show
Error:
0x00007fdc8fb0287f in __libc_recv (fd=4, buf=0x55f39c0, n=8192, flags=0) at ../sysdeps/unix/sysv/linux/x86_64/recv.c:28
How to solve this problem