How can I get a copy of the whitepaper? Thanks. From: Action Request System discussion list(ARSList) [mailto:[email protected]] On Behalf Of Axton Sent: Tuesday, September 20, 2011 10:18 AM To: [email protected] Subject: Re: Software load balancer with AR Server and Mistier
** I believe you still need session persistence with the mid-tier in 7.6. You do not (and have not really) required session persistence with the ARServer. A whitepaper available for 7.6 details this. The timeout on the load balancer needs to match or exceed the session timeout of your mid-tier application. If you are using a single sign on solution the mid-tier session timeout needs to be less than or equal to the SSO session timeout. So this would be a valid combination: Mid-tier Session Timeout: 60 minutes SSO Session Timeout: 120 minutes Load Balancer Session Persistence Expiration: 60 minutes In order for a J2EE application to not require session persistence a number of things have to be in place: - all objects in the container must be serializable - the container nodes in the farm must be configured as a cluster (session information must be serialized) There are some things that make me believe this is not possible with the midtier. Some information that is session specific is written to disk. I doubt these can be properly replicated between the J2EE containers. Axton On Tue, Sep 20, 2011 at 4:53 AM, debug ars <[email protected]<mailto:[email protected]>> wrote: ** Thanks Ken. We have search all articles and also went through documentation related to this. [We found that in 7.6.04 Midtier there are few additional configuration parameters available in which may not require stickiness to be set on load balancer. I have not tried those options yet though.] We have finalized on crossroads after careful review of all three. I will post my comments once we complete our testing. On Tue, Sep 20, 2011 at 7:10 AM, Cecil, Ken <[email protected]<mailto:[email protected]>> wrote: ** I have not done any testing but do recall seeing several Mistier related BMC knowledge base articles where the cause of the issues were related to Load Balancer use and settings like stickiness. Make sure you do a search on the support sight for load balancer and review them... Ken Cecil Hubbell Incorporated From: Action Request System discussion list(ARSList) [mailto:[email protected]<mailto:[email protected]>] On Behalf Of debug ars Sent: Monday, September 19, 2011 5:56 AM To: [email protected]<mailto:[email protected]> Subject: Software load balancer with AR Server and Midtier ** We are exploring various options to setup our test environment in server group with load balancer. Does anyone tried to use software load balancer for AR Server Group and Midtier? If yes, can you share details like, which software, version, configuration parameters like stickiness, timeout etc? [We have identified three with which we will be experimenting - crossroads, balanceAG and haproxy] -- Cheers Amen _attend WWRUG11 www.wwrug.com<http://www.wwrug.com> ARSlist: "Where the Answers Are"_ ******************************************************************* This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept for the presence of computer viruses. www.Hubbell.com<http://www.Hubbell.com> - Hubbell Incorporated** _attend WWRUG11 www.wwrug.com<http://www.wwrug.com> ARSlist: "Where the Answers Are"_ -- Cheers DA -- On seventh day almighty started debugging _attend WWRUG11 www.wwrug.com<http://www.wwrug.com> ARSlist: "Where the Answers Are"_ _attend WWRUG11 www.wwrug.com ARSlist: "Where the Answers Are"_ ________________________________ Portions of this message may be confidential under an exemption to Ohio's public records law or under a legal privilege. If you have received this message in error or due to an unauthorized transmission or interception, please delete all copies from your system without disclosing, copying, or transmitting this message. _______________________________________________________________________________ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org attend wwrug11 www.wwrug.com ARSList: "Where the Answers Are"
