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HBase >> mail # user >> Determining the unqiue row keys for Hbase table


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Re: Determining the unqiue row keys for Hbase table
You can use HTable.incrementColumnValue. Of cource you can increment in
steps (f.e. 100) and
reduce amount of rpc generetated by you MR jobs.

2011/2/7 som_shekhar <[EMAIL PROTECTED]>

>
> Hi All,
> I would like to know how to provide the unique row names for hbase table.
> Since if there are similar row keys then they will be overwritten in the
> hbase table.
> I am  writing the map reduce job which will read the file from the HDFS and
> will update the table in the mapper function only. for the time being i am
> not using  the reducer.
>
> if i append the session id with the row keys, then is it guarnteed to have
> the unique key?
>
> Regards,
> Shekhar
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>
>