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HBase, mail # dev - HBase Developer's Pow-wow.


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Re: HBase Developer's Pow-wow.
Jacques 2012-09-10, 23:40
>
> All of my use-cases would require Per-table indexes.  Per-region is easier
> to keep consistent at write-time, but is seems useless to me for the large
> tables that hbase is designed for (because you have to hit every region for
> each read).
>

Can you expound on use cases?  The pros and cons are heavily dependent on
the sparseness of the indexed values and the particular use case.  If we're
talking about a gender column on a user profile table, you really want that
to be spread out among all regions.  If we're talking about an email
address... not so much.