Dear APE Team,
I am using the functionality of inlinepush for my application. We are
expecting 50K users at any time to be using our application.
I was doing a load testing with 10K users initially for the same.
For testing I have written a client application which spawns 10K
threads.Each thread does the foll which is exactly how our application
will work
1) Connects to the APE server on
http://0.ape.<domain>.com:80?[{"cmd":"CONNECT","chl":1,"params":{"param1":"value1","param2":"value2","param3":"value3","param4":"value4","param5":"value5"}}]]
2) Validate the above parameters at the server end and
authenticating them by sending the request to another URL (using
Http.js on server end for the same)
3) On authentication each thread creates a new channel.
4) Each thread then connects to ape server and checks if any
message
is there on its channel or not. After every 25s the each thread sends
another request to check the same.
We are sending messages once every 2 hours (In real application the
frequency will be less every 2 mins or so and we will be using a
script similar to the Php bundled with inline push demo).All the
thread are able to receive their own messages properly.
Our load testing runs works smoothly for 19-20 approx hours with 10K
users and all the channels are created. But after that the APE server
stops responding, surprisingly when I check the process listing, it
shows me that APE is still running and also the PID is present in /
proc file.
During peak times of load testing, we are having 14-15 K http
connections out of which 13-14K are in ESTABLISHED state.
My server configruations are as follows
OS:- CentOS release 5.4 (Final) 32 bit
Kernel:- Linux 2.6.18-164.el5PAE
APE Version:- 1.0
Server Side JS:- mootools.js; Http.js; utils.js; inlinepush.js
Also I have came across a performance tuning post in the google
groups specifying tuning of sysctl and other TCP based parameters.
We are currently using all default values for the same. It
would be really great if you can share some sysctl parameters using
which I can ramp up my testing scenario till 50K users, We wish to
keep the tests running for maximum 24-30 hours.
Thanking You,
Regards,
Sudeep Sunthankar
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APE Project (Ajax Push Engine)
Official website : http://www.ape-project.org/
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