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From Muntasir Raihan Rahman <muntasir.rai...@gmail.com>
Subject Re: configuring read write quorums in cassandra
Date Wed, 28 Aug 2013 20:53:02 GMT
Thanks for clarifying that!

Muntasir.

On Wed, Aug 28, 2013 at 3:51 PM, Andrey Ilinykh <ailinykh@gmail.com> wrote:
> Each query has its own consistency level. It has nothing to do with
> cassandra.
>
>
> On Wed, Aug 28, 2013 at 1:48 PM, Muntasir Raihan Rahman
> <muntasir.raihan@gmail.com> wrote:
>>
>> Sorry, let me clarify.
>>
>> Let us say I set read consistency level = ONE, and I am running the
>> system for a while. Then I want to change the read consistency level
>> to TWO so that reads now wait to hear back from 2 replicas instead of
>> 1 before responding to the client. I want to change this consistency
>> level, and then continue running the system.
>>
>> Does that clarify my query?
>>
>> Thanks
>> Muntasir.
>>
>> On Wed, Aug 28, 2013 at 3:39 PM, Andrey Ilinykh <ailinykh@gmail.com>
>> wrote:
>> > What do you mean "to change the cassandra read and write quorums"?
>> > Quorum is
>> > quorum, 2 of 3 for example. What do you want to change?
>> >
>> > Andrey
>> >
>> >
>> > On Wed, Aug 28, 2013 at 1:33 PM, Muntasir Raihan Rahman
>> > <muntasir.raihan@gmail.com> wrote:
>> >>
>> >> Hello,
>> >>
>> >> Are there any tools (e.g like nodetool) that could be used to change
>> >> the cassandra read and write quorums at run-time?
>> >>
>> >> In general what is a good strategy of changing these system parameters
>> >> while cassandra is running?
>> >>
>> >> Any pointers could be useful!
>> >>
>> >> Thanks
>> >> Muntasir.
>> >
>> >
>>
>>
>>
>> --
>> Best Regards
>> Muntasir Raihan Rahman
>> Email: muntasir.raihan@gmail.com
>> Department of Computer Science,
>> University of Illinois Urbana Champaign,
>> 3111 Siebel Center,
>> 201 N. Goodwin Avenue,
>> Urbana, IL  61801
>
>



-- 
Best Regards
Muntasir Raihan Rahman
Email: muntasir.raihan@gmail.com
Department of Computer Science,
University of Illinois Urbana Champaign,
3111 Siebel Center,
201 N. Goodwin Avenue,
Urbana, IL  61801

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