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From Dave Latham <lat...@davelink.net>
Subject Re: Creating HBase table with presplits
Date Mon, 28 Nov 2016 15:35:23 GMT
If you truly have no way to predict anything about the distribution of your
data across the row key space, then you are correct that there is no way to
presplit your regions in an effective way.  Either you need to make some
starting guess, such as a small number of uniform splits, or wait until you
have some information about what the data will look like.

Dave

On Mon, Nov 28, 2016 at 12:42 AM, Sachin Jain <sachinjain024@gmail.com>
wrote:

> Hi,
>
> I was going though pre-splitting a table article [0] and it is mentioned
> that it is generally best practice to presplit your table. But don't we
> need to know the data in advance in order to presplit it.
>
> Question: What should be the best practice when we don't know what data is
> going to be inserted into HBase. Essentially I don't know the key range so
> if I specify wrong splits, then either first or last split can be a hot
> region in my system.
>
> [0]: https://hbase.apache.org/book.html#rowkey.regionsplits
>
> Thanks
> -Sachin
>

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