Nithin,


What is the make of your Load balancer. We have seen such issues with F5 LB and 
a proxy.

F5 load balancer has an issue with Session persistence/Session affinity.



Please try the following: If your LB is F5 and you use proxy. Involve the 
admins who have setup the LB for you for creating the One Connect profile.



http://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/ltm_configuration_guide_10_0_0/ltm_persist_profiles.html

*         Refer to the following known issue when F5 is used with a Proxy.

The Request-URI header in an HTTP request stores certain session data. 
Occasionally, however, for Cookie and Universal persistence types specifically, 
the BIG-IP system ignores the session data in this header, and sends requests 
to an unexpected node. For example, this issue can occur when clients send 
requests to a virtual server through an internet proxy device. You can prevent 
this problem by creating a OneConnect profile, and assigning both the 
OneConnect profile and the persistence profile to the virtual server.

*         The suggested F5 solution for making F5 Load Balancer work correctly 
with a Proxy is to create an OneConnect profile and applying both the 
OneConnect profile and the persistence profile to the virtual server.



Regards,

Ravi



-----Original Message-----
From: Action Request System discussion list(ARSList) 
[mailto:arslist@ARSLIST.ORG] On Behalf Of Axton
Sent: 23 November 2011 21:11
To: arslist@ARSLIST.ORG
Subject: Re: Loadbalancer issue in Mid-Tier 7.6.04 SP2



What kind of load balancer are you using?  Cisco, BigIP?  Did you look at the 
midtier/web logs to see if requests from a single browser are bouncing between 
multiple nodes?



Axton



On Wed, Nov 23, 2011 at 9:08 AM, Nithin Vinod Kumar 
<nithin.vinod.ku...@gmail.com<mailto:nithin.vinod.ku...@gmail.com>> wrote:

> ** All,

>

> We have configured the sticky bit for cookie on midtier Loadbalancer.

>

> But still we are getting the same issue.

>

> Please suggest if any changes need to be done on the loadbalancer or

> in our application.

>

> Thanks,

> Nithin

>

> On Tue, Nov 22, 2011 at 6:29 AM, Nithin Vinod Kumar

> <nithin.vinod.ku...@gmail.com<mailto:nithin.vinod.ku...@gmail.com>> wrote:

>>

>> All,

>>

>> We are working on the sticky bit on the loadbalancer now.

>> As of now, When one of the servers is brought down then the LB

>> redirects to the mid tier that is up and running.

>> Lets hope setting the sticky flag solves it altogether.

>>

>> Thanks,

>> Nithin

>>

>> On Mon, Nov 21, 2011 at 4:31 AM, John Baker

>> <jba...@javasystemsolutions.com<mailto:jba...@javasystemsolutions.com>> 
>> wrote:

>>>

>>> Hello

>>>

>>> Do you have the sticky flag set on the LB? Mid Tier does not support

>>> session replication (although I wish it would).

>>>

>>>

>>> John

>>>

>>>

>>> ____________________________________________________________________

>>> ___________ UNSUBSCRIBE or access ARSlist Archives at

>>> www.arslist.org<http://www.arslist.org> attend wwrug12 
>>> www.wwrug12.com<http://www.wwrug12.com> ARSList: "Where the

>>> Answers Are"

>>

>

> _attend WWRUG12 www.wwrug.com<http://www.wwrug.com> ARSlist: "Where the 
> Answers Are"_



_______________________________________________________________________________

UNSUBSCRIBE or access ARSlist Archives at 
www.arslist.org<http://www.arslist.org> attend wwrug12 
www.wwrug12.com<http://www.wwrug12.com> ARSList: "Where the Answers Are"

_______________________________________________________________________________
UNSUBSCRIBE or access ARSlist Archives at www.arslist.org
attend wwrug12 www.wwrug12.com ARSList: "Where the Answers Are"

Reply via email to