Hi All,
I’m working with Apache2 and mod_python.
I have a server process that must run a long and heavy data processing.
If the client (the user) decides to stop the data processing, the server
receives the signal and the connection enters in a CLOSE_WAIT status
until the server process has finished.
Since the resources utilization is high, I would like to manage the
CLOSE_WAIT status and I would like to force the server process to end.
Is there a method to allow the server process to see the connection
status and, in particular, to see if the connection is in CLOSE_WAIT ?
For example, considering the following code:
from mod_python import util
import apache, time, sys
def handler(req):
#infinite loop
while True:
time.sleep(2)
#open log file
f = open("/home/damiano/www/test_close_wait.log","a")
f.write(str(req.connection.aborted))
f.write("\n")
f.close()
#exit if connection is in CLOSE_WAIT
if req.connection.aborted:
sys.exit(1)
req.content_type = 'text/html'
req.write("<p>END</p>")
return apache.OK
The infinite loop can be considered as my data processing.
req.connection is the connection object associated with the request.
req.connection.aborted is the element that i have tried to check but,
when the connection changes from ESTABLISHED to CLOSE_WAIT, this
variable does not change and remains to 0 (False).
Does anyone know how to deal with the problem and can help me.
Thanks in advance
Damiano
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