Session Persistent based on the HTTP Header
Hi DevCentral, I am relatively new to Load Balancer technology. Our organization has just installed a LTM BIG-IP 2000s Version 11.6 as our Internal Servers node Load Balancer. The traffic flow is described as follows: The actual Load Balancer clients are Mobile Apple IOS Device (e.g. Iphone, Ipad ..) and will somehow connect to an "Application Server" running a web services. All IOS clients initiate sessions connection to this "Application Server" first, then the "Application Server" will then initiate one Pool session to the Load Balancer LTM BIP-IP 2000s on behalf of the multiple IOS clients. It is a mandatory requirement to have "Session Persistent" on an application perspective based on each individual clients. Due to the above traffic flow behaviour, adopting both "Cookies" persistent and "Source Address" persistent methodology on the LTM persistent profile are not appropriate as the BIG-IP LTM is facing all traffic coming from this one and only "Application Server". Our application service provider proposed to inject an Parameter on the HTTP header e.g. "iSession" with a running unique session number for each IOS clients connection which initiate the traffic from the "Application Server" to the BIG-IP LTM in order to address the issue. Our question is whether BIG-IP LTM can able to retrieve this session number from the HTTP Header provider by the application and based on this retrieved session number forward all subsequent requests with the same session to the same Node member. I understand this can only be done by using iRule as it seems all the "persistent profile" mechanism (i.e. cookies, source address, destination address, hash ..) can not achieve our requirement. Highly appreciate your technical advice in advance and provide some guideline or implementation steps which will really help our project implementation. Thanks & Regards Patrick
JSessionID Expiration
Hi, We have this issue on an application that was upgraded on the basic cookie to java based application. We then create basic IRule below. when HTTP_REQUEST { if { [HTTP::cookie "JSESSIONID"] ne "" }{ persist uie [string tolower [HTTP::cookie "JSESSIONID"]] 1800 } } when HTTP_RESPONSE { if { [HTTP::cookie "JSESSIONID"] ne "" }{ persist add uie [string tolower [HTTP::cookie "JSESSIONID"]] 1800 } } As far I know that this will only flush persistency record on the set timeout (1800) correct? Upon testing, if the browser will not be closed let say within 24hrs, JSessionID is intact and still login on the server. As per the application, they cant modify to have the idle timeout on the JSessionID and asking it to work on the LTM loadbalancer it self. Any recommendation please? thanks!JsessionID iRule tomcat web application . Logging out
Hi, We are having a problem when using JsessionID iRule for the tomcat web application. As requirement we need to have Jsession ID irule instead of cookie. so that we can control the records persistence for each server Browser: IE, Chrome, Mozilla Scenario Upon logging to web apps and clicking a button with notification. The notification was for Messages, Feedbacks, Briefings respectively. There was a periodic updates for the server.For instances , after i clicked Briefings(1) it will be redirected to Login or the session will timeout page again, but sometimes it won't. It is happening on random. Please see my irule when HTTP_RESPONSE { if { [HTTP::cookie exists "JSESSIONID"] } { persist add uie [HTTP::cookie "JSESSIONID"] } } when HTTP_REQUEST { if { [HTTP::cookie exists "JSESSIONID"] } { persist uie [HTTP::cookie "JSESSIONID"] } } How to attached the dumps or should i? Thanks! Regards, Mond