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From Ertio Lew <ertio...@gmail.com>
Subject Re: Zookeeper for generating sequential IDs
Date Fri, 25 Feb 2011 22:58:51 GMT
Thanks Patrick,

The fact that it is still in the alpha stage and twitter is not yet
using it, makes me look to other solutions as well, which have a large
community/users base & are more mature.

I do not know much about the snowflake if it is being used in
production by anyone ..

On Fri, Feb 25, 2011 at 11:21 PM, Patrick Hunt <phunt@apache.org> wrote:
> Have you looked at snowflake?
> http://engineering.twitter.com/2010/06/announcing-snowflake.html
> Patrick
> On Fri, Feb 25, 2011 at 9:43 AM, Ted Dunning <ted.dunning@gmail.com> wrote:
>> If your id's don't need to be exactly sequential or if the generation rate
>> is less than a few thousand per second, ZK is a fine choice.
>> To get very high generation rates, what is typically done is to allocate
>> blocks of id's using ZK and then allocate out of the block locally.  This
>> can cause you to wind up with a slightly swiss-cheesed id space and it means
>> that the ordering of id's only approximates the time ordering of when the
>> id's were assigned.  Neither of these is typically a problem.
>> On Fri, Feb 25, 2011 at 1:50 AM, Ertio Lew <ertiop93@gmail.com> wrote:
>>> Hi all,
>>> I am involved in a project where we're building a social application
>>> using Cassandra DB and Java. I am looking for a solution to generate
>>> unique sequential IDs for the content on the application. I have been
>>> suggested by some people to have a look  to Zookeeper for this. I
>>> would highly appreciate if anyone can suggest if zookeeper is suitable
>>> for this purpose and any good resources to gain information about
>>> zookeeper.
>>> Since the application is based on a eventually consistent distributed
>>> platform using Cassandra, we have felt a need to look over to other
>>> solutions instead of building our own using our DB.
>>> Any kind of comments, suggestions are highly welcomed! :)
>>> Regards
>>> Ertio Lew.

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