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Re: OCF(v2).

From: DA Morgan <>
Date: Wed, 07 Nov 2007 13:24:13 -0800
Message-ID: <> wrote:

> On Nov 6, 4:55 pm, DA Morgan <> wrote:

>> wrote:
>>> On Nov 6, 3:53 am, DA Morgan <> wrote:
>>>> wrote:
>>>>> On Nov 5, 6:32 pm, DA Morgan <> wrote:
>>>>>> wrote:
>>>>>>> Hi,
>>>>>>> I need some advise from someone who knows alot about OCF and maybe CFs
>>>>>>> in general..
>>>>>>> Suppose you have two independent (A & B) database nodes share a
>>>>>>> database volume on a CF.
>>>>>>> Is it possible to have the CF queue (FIFO) requests (read / write)
>>>>>>> from either node in order to let them be executed in that order?
>>>>>>> Rgds
>>>>>>> /PL
>>>>>> Please define your terms.
>>>>>> 1. What version of Oracle?
>>>>>> 2. Are you discussing RAC? If not what are you discussing?
>>>>>> 3. If RAC have you read the concepts and architecture docs?
>>>>>>     Which ones?
>>>>> Thanks for your reply.
>>>>> 10g, two stand alone DBs (not RAC) + proprietary cluster.
>>>>>> If you want serialization what you are saying is that if node 1
>>>>>> starts something that will take 15 minutes you want node 2 to
>>>>>> freeze. Does this make sense?
>>>>> Well, that's a good to begin with but if that's the starting point we
>>>>> would like to add nifty features such as.
>>>>> i) If a write process has been active for more than x seconds, pass
>>>>> through all read processes in the queue.
>>>>> And with even more intelligence added: ii) Write's could be passed
>>>>> through as well as long as they don't interfere with each other.
>>>>> Rgds
>>>>> /PL
>>>> Two separate 10g instances hitting the same database files without
>>>> the benefit of Oracle clusterware? Have you considered just dropping
>>>> a brick on your foot. Why? My expectation is that you are trying to
>>>> earn pain and will likely get a boatload of it.
>>> ((:
>>> Well, it's not easy but if the concept can be proven the idea has alot
>>> of potential.
>>> Rgds
>>> /PL

>> The brick takes less time and anyone that has studied Oracle RAC can
>> predict, with 99.99999999% certainty, the outcome.

>> It is one thing to waste time reinventing the wheel.

>> Quite another to think throwing yourself off a cliff is a good way to
>> learn to fly.
>> --
>> Daniel A. Morgan
>> University of Washington
>> (replace x with u to respond)
>> Puget Sound Oracle Users
> It's kinda obvious you're loyal to Oracle, chill ..
> Rgds
> /PL

No. It is kind of obvious that you will fail.

You aren't even asking the right questions indicating you don't even understand the basic concepts you are dealing with.

Daniel A. Morgan
University of Washington (replace x with u to respond)
Puget Sound Oracle Users Group
Received on Wed Nov 07 2007 - 15:24:13 CST

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