01-28-2013 07:36 AM
Hi Guy's,
Just wondering if anyone can shed some light on what appears to be a discrepancy in the loadbalanced stats that are produced from a show serverfarm and the stats that my server team report for each loadbalanced server.
For example:
ACE/context1# show serverfarm LIVE
serverfarm : LIVE, type: HOST
total rservers : 4
---------------------------------
----------connections-----------
real weight state current total failures
---+---------------------+------+------------+----------+----------+---------
rserver:Server1
10.10.10.1:0 8 OPERATIONAL 1077 23099 2123
rserver: Server2
10.10.10.2:0 8 OPERATIONAL 1099 23533 1830
But the server team report Server1 has 615 and Server2 has 563 active sessions. I would have thought that both loadbalancer and server statistics on current and active sessions should be the same?
01-28-2013 01:49 PM
Hi paul,
If you take output for sh conn rserver server1 detail
You will notice that many connection on ACE is in different state. It would not show established.
It may be in CLS-RST or CLOSE state. This happens when the connection are improperly closed.
something like below:
1 in TCP 101 10.12.18.20:80 10.87.3.184:34484 CLOSED
You will also notice many idle connection waiting for timeout to happen.
This might be one of the reason for the descripancy.
Below is the different port state for your reference:
state: The state of the connection. Non-TCP connections display "--"
Possible TCP states are:
INIT - Initial state of a connection.
SYNSEEN - ACE received a SYN.
SYNACK - ACE sent a SYNACK.
ESTAB - 3-way handshake completed and connection is established.
CLSFIN - ACE closed the connection with a FIN.
CLSRST - ACE closed the connection with a RST.
CLSTIMEOUT - ACE closed the connection for it timed out.
CLOSED - Connection is half closed.
regards,
Ajay Kumar
01-29-2013 04:51 AM
Thanks very much Ajay.
The status only shows either ESTAB or CLOSED.
Cheers,
Paul.
01-29-2013 04:56 AM
Hi paul,
Good to know that you can see the reason for the difference in count.
In your case closed are the one which are not there on the server.
regards,
Ajay kumar
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