RE: Multiple Listener
- From: Wolfgang Breitling <breitliw@xxxxxxxxxxxxx>
- To: "Sam Chakkanat" <cvsam@xxxxxxx>
- Date: Wed, 29 Nov 2006 10:21:05 -0700
Separate listeners by Oracle version won't save your a&& if you take one done. If your business needs five 9 SLAs then I might have a separate home just for the listener, actually probably two and run two listeners - of the same highest version - for all databases of all versions to avoid a SPOF.
At 09:31 AM 11/29/2006, Sam Chakkanat wrote:
You will come across having single listener with multiple Oracle Home when business needs "Four" or "Five" nine SLA's. In those case you're a&& will be on fire if you took down a listener and 1000's of transactions clogged on your other system. Evaluated case by case, we cannot completely rule out an Oracle Home maintenance and that's the general "Best Practice" from Oracle. With RAC of course, you could have a rolling upgrade, patch maintenance schedule. I don't know about the business case here. And absolutely, you could always have a single listener for all Oracle Homes, based on business. My comment was based on larger clients and general best practices. About processing and memory - What do you give weigh? Your customers or 10 MB of memory?
Regards Wolfgang Breitling Centrex Consulting Corporationwww.centrexcc.com
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