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Hits Problem

tevfik
Level 1
Level 1

Hi,

I have a configuration shown below:

---------------------------------------

owner HOMEDECK_CLUSTER

content HomeDeck_Cluster

add service HomeDeck_Cluster-9001-1

add service HomeDeck_Cluster-9001-2

add service HomeDeck_Cluster-9001-3

port 9001

protocol tcp

vip address 10.200.A.B

add service HomeDeck_Cluster-9002-1

add service HomeDeck_Cluster-9002-2

add service HomeDeck_Cluster-9002-3

advanced-balance sticky-srcip-dstport

sticky-inact-timeout 10

active

service HomeDeck_Cluster-9001-1

ip address 10.200.A.C

protocol tcp

port 9001

keepalive type tcp

keepalive port 9001

active

service HomeDeck_Cluster-9001-2

ip address 10.200.A.D

protocol tcp

port 9001

keepalive type tcp

keepalive port 9001

active

service HomeDeck_Cluster-9001-3

ip address 10.200.A.E

protocol tcp

port 9001

keepalive type tcp

keepalive port 9001

active

service HomeDeck_Cluster-9002-1

ip address 10.200.A.C

protocol tcp

port 9002

keepalive type tcp

keepalive port 9002

active

service HomeDeck_Cluster-9002-2

ip address 10.200.A.D

protocol tcp

port 9002

keepalive type tcp

keepalive port 9002

active

service HomeDeck_Cluster-9002-3

ip address 10.200.A.E

protocol tcp

port 9002

keepalive type tcp

keepalive port 9002

active

--------------------------

Buti there is a load balancing problem. When I look at the rule ststistics. I see an aoutput like this:

-------------------------------------

Name: Hits: Wgt: State: Ld: KAlive: Conn: DNS:

----- ----- ----- ------ --- ------- ----- ----

HomeDeck_Cluster-9001-1

1,494 S-1 Alive 88 TCP-9001 1 0

HomeDeck_Cluster-9001-2

1,797 S-1 Alive 2 TCP-9001 0 0

HomeDeck_Cluster-9001-3

141 S-1 Alive 2 TCP-9001 2 0

HomeDeck_Cluster-9002-1

1,359 S-1 Alive 2 TCP-9002 0 0

HomeDeck_Cluster-9002-2

298 S-1 Alive 43 TCP-9002 0 0

HomeDeck_Cluster-9002-3

80 S-1 Alive 2 TCP-9002 0 0

--------------------------------------

As you see, there is a load and hits problem.

How can set an homogeneous load and hits?

1 Reply 1

Gilles Dufour
Cisco Employee
Cisco Employee

when using sticky option you are never guaranteed to get equal load.

Especially with sticky srcip as with NAT many clients can come to your vip using the same ip.

You can try to change the balancing method to 'leastconn' but be aware it will probably not solve the problem because of stickyness.

Gilles.