zookeeper-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Ertio Lew <ertio...@gmail.com>
Subject Re: Zookeeper for generating sequential IDs
Date Mon, 28 Feb 2011 15:25:00 GMT
Could you recommend any other ID generator that could help me with
increasing Ids(not necessarily sequential) with size<= 60 bits ?

Thanks


On Mon, Feb 28, 2011 at 8:30 PM, Ertio Lew <ertiop93@gmail.com> wrote:
> Thanks Patrick,
>
> I considered your suggestion. But sadly it could not fit my use case.
> I am looking for a solution that could help me generate 64 bits Ids
> but in those 64 bits I would like atleast 4 free bits so that I could
> manage with those free bits to distinguish the type of data for a
> particular entity in the same columnfamily.
>
> If I could keep the snowflake's Id size to around 60 bits, that would
> have been great..
>
>
>
>
>
> On Sat, Feb 26, 2011 at 5:13 AM, Patrick Hunt <phunt@apache.org> wrote:
>> Keep in mind that blog post is pretty old. I see comments like this in
>> the commit log
>>
>> "hard to call it alpha/experimental after serving billions of ids"
>>
>> so it seems it's in production at twitter at least...
>>
>> Patrick
>>
>> On Fri, Feb 25, 2011 at 2:58 PM, Ertio Lew <ertiop93@gmail.com> wrote:
>>> 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.
>>>>>>
>>>>>
>>>>
>>>
>>
>

Mime
View raw message