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New Member

CSS http keepalive failes even though server responds

I recently "inherited" a CSS 11503 - I've only used ACEs before - and I want to get HTTP keepalives working.

To start, I created a test service:

lb-1# show run service sunbird-http-7025-test

!************************** SERVICE **************************

service sunbird-http-7025-test

  port 7025

  ip address

  keepalive type http

  keepalive uri "/render.userLayoutRootNode.uP"

  keepalive http-rspcode 302


And verified that the server is indeed returning a 302 response:

lb-1# llama

lb-1(debug)# icp probe service sunbird-http-7025-test "/render.userLayoutRootNode.uP"

Probing Probing via HEAD

IP Address:

Port:             7025

URL:              /render.userLayoutRootNode.uP

HTTP Version:     1.1

Server Model:     Not Present

Server Date:      Wed, 30 Nov 2011 15:05:22 GMT

HEAD Response:    302 Moved Temporarily


HEAD Support:     Yes

Persistence:      Yes

Keep-Alive:       Yes

Request Depth:    100

TBR:              5

Connect Time:     4 ms

Rqst/Rsp Time:    1 ms

Pipeline:         No

SSL:              No

but the service won't come up:

lb-1# show service sunbird-http-7025-test

  Name: sunbird-http-7025-test  Index: 26   

  Type: Local            State: Down

  Rule (  ANY  7025 )

  Session Redundancy: Disabled

  Redirect Domain: 

  Redirect String:

  Keepalive: (HTTP-7025:HEAD-302:/render.userLayoutRootNode.uP   5   3   5 )

  Keepalive Error: General failure

Any/all assistance would be appreciated!

Everyone's tags (2)

CSS http keepalive failes even though server responds

Hi Kurt,

What WebNS version are you running on that CSS? Do you have any other "class A" keepalives working (HTTP keepalives) correctly on that box for that or any other service?

This seems to be related to a known bug, the fact that ICP probe returns a correct status almost confirms my suspicion.


__ __


New Member

Re: CSS http keepalive failes even though server responds

This is the only http keepalive we have configured with a non-default

configuration (i.e. the only one with a keepalive uri and response code);

we have others that also use non-standard ports, and these work - e.g.:

lb-1# sho keepalive AUTO_calliope-8080

Name: AUTO_calliope-8080 Index: 7 State: Alive

Description: Auto generated for service calliope-8080

Address: Port: 8080


WebNS version? I hope you mean the SW on the box, this is the first time

I've heard of "WebNS"...

It's running

Dr. Kurt Hillig

UMNet Administration I always tell the Fax (734)763-4050

University of Michigan absolute truth, Phone (734)647-8778

Ann Arbor, MI 48105-3640 as I see it. EMail khillig(at)

> Computers were invented to help people waste more time faster <