hadoop-common-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From abhishek dodda <abhishek.dod...@gmail.com>
Subject Re: Reg:Sequence id generation
Date Thu, 07 Jun 2012 14:38:18 GMT
Actually trying to look how we can write a mapreduce program.

On Thu, Jun 7, 2012 at 7:12 AM, Harsh J <harsh@cloudera.com> wrote:
> Ashish - Note though that Twitter's Snowflake is only roughly
> sequential in generation.
>
> Abhishek - Do you really require proper sequence IDs? Why not just
> keep and work with timestamps?
>
> On Thu, Jun 7, 2012 at 6:57 PM, Ashish <paliwalashish@gmail.com> wrote:
>> Can try snowflake https://github.com/twitter/snowflake
>>
>> On Thu, Jun 7, 2012 at 6:20 PM, abhishek dodda
>> <abhishek.dodda1@gmail.com> wrote:
>>> Hi all,
>>>
>>> I have a scenario where all my tables are in DB2 and after dumping
>>> them into HDFS.
>>> A unique sequence id (or) unique identifier an extra column should be
>>> added at beginning or at the end of the table can anyone help me on
>>> this please.
>>>
>>> Thanks
>>>
>>> Regards
>>> Abhi.
>>
>>
>>
>> --
>> thanks
>> ashish
>>
>> Blog: http://www.ashishpaliwal.com/blog
>> My Photo Galleries: http://www.pbase.com/ashishpaliwal
>
>
>
> --
> Harsh J

Mime
View raw message