I think this is a job for DRBD and HeartBeat
________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ariz Jacinto Sent: Tuesday, April 15, 2008 1:16 PM To: Philippine Linux Users' Group (PLUG) Technical Discussion List Subject: [SPAM] - Re: [plug] redundant session in cluster - Email found in subject i'm not sure how your app currently handle sessions but you can mitigate the problem by storing the session outside of the web server and store it on the database or memcached servers, e.g. PHP's session_set_save_handler(). however, zero interruption is not guaranteed since large websites even experience such. the key is on how your app handles the problem via error handling (w/ AJAX). On Tue, Apr 15, 2008 at 6:56 AM, Jagi Sarcilla <[EMAIL PROTECTED]> wrote: [....] web1 and web2 apache webserver app1 and app2 jboss app server db1 and db2 mysql db server i need a failover solutions for web, app and db1, but when the failures occur on web, it must not interrupt or cut the session. seamless process, you will not experience disconnections or interruptions. any idea, solutions and suggestions on this type of requirements. [....] -------------------------------------------------------------------------------------------------------- This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom it is addressed. It may contain sensitive and private proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you are not the intended recipient, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. FXDirectDealer, LLC reserves the right to monitor all e-mail communications through its networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorized to state them. Unless otherwise stated, any pricing information given in this message is indicative only, is subject to change and does not constitute an offer to deal at any price quoted. Any reference to the terms of executed transactions should be treated as preliminary only and subject to our formal confirmation. FXDirectDealer, LLC is not responsible for any recommendation, solicitation, offer or agreement or any information about any transaction, customer account or account activity contained in this communication.
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