Real-time stats

Discussion in 'General' started by IanD, Nov 24, 2010.

  1. IanD

    IanD Well-Known Member

    Hi,

    I have a fairly busy server (around a million visitors a day) and until very recently my "Connections: HTTP Used" used to be around 300-500 constantly.

    Now though, it is between 0 and 4.

    My server is responding fine though and the amount of traffic is the same, just for some reason had a dramatic drop in the amount of http connections used.

    Is this correct or some sort of bug?

    Req/Second is around 400 still.

    The only thing I can remember doing is reducing the Keep-Alive Timeout (secs) by a couple of seconds.

    Just curious as to why this would happen?

    Many thanks,

    Ian
     
  2. webizen

    webizen Well-Known Member

    Hi Ian,

    Can you provide the following info?
    1. Your OS version
    2. Your LSWS version
    3. Keep-Alive Timeout setting (before and after)

    Webizen
     
  3. IanD

    IanD Well-Known Member

    Hi,

    I just thought of one major thing that could have affected it..

    The webserver is now behind a reverse proxy server - would this cause the amount of connections to become only 1 or 2?

    I notice when accessing my server through the proxy the following header is set:

    [HTTP_CONNECTION] => close

    where before it was:

    [HTTP_CONNECTION] => keep-alive

    1. Your OS version
    Red Hat 4.1.2-48

    2. Your LSWS version
    Enterprise Edition - Version 4.0.17

    3. Keep-Alive Timeout setting (before and after)
    5 and 3 (but possibly this is being overridden by the proxy server?)

    Thanks.
     
  4. webizen

    webizen Well-Known Member

    Hi Ian,

    4.1.2-48 is probably your gcc version.

    Pls do 'cat /etc/redhat-release' to show your OS version.

    Also post a screenshot for your real time stats.

    BTW, just for better understand your situation, what is the purpose of your reverse proxy? what are the settings?

    Webizen
     
  5. IanD

    IanD Well-Known Member

    Sorry for the delay..

    OS Version:
    CentOS release 5.5 (Final)

    I've attached screenshot (which seems to have shrunk - let me know if you can't read it).

    The reverse proxy is for DDoS protection, couldn't tell you of the settings I'm afraid.

    Like I said, the server is working fine - just used to having 300-500 http connections used instead of 2.
     

    Attached Files:

    Last edited: Dec 2, 2010
  6. anewday

    anewday Moderator

    Litespeed DDOS protection is pretty darn good already. Were you attacked prior to putting the reverse proxy?
     
  7. webizen

    webizen Well-Known Member

    Hi Ian,

    Yes, the pic is too small to read.

    Can you re-upload with a bigger size?

    Thanks!

    Webizen
     

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