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From Billie Rinaldi <billie.rina...@gmail.com>
Subject Re: "Re-applying" split file to a table?
Date Mon, 06 Jan 2014 19:33:18 GMT
On Mon, Jan 6, 2014 at 11:24 AM, Mike Drob <madrob@cloudera.com> wrote:

> Aaron,
>
> If you attempt to apply the same splits file, then you are attempting to
> add already existing splits. Since the data is already split on those
> points, there are no changes, and nothing happens, exactly as you observed.
>
> If you apply a different split file to the existing data (after it already
> had the initial and natural splits), then you will likely get more split
> points. The data might not split immediately, but you can prompt it to do
> so by issuing a major compaction.
>

To clarify: when adding new split points the tablets will split
immediately, but will continue to share the same existing data files until
a major compaction occurs.


> Your underlying data will not change, but you should see more tablets in
> your table via the monitor interface.
>
> Mike
>
>
> On Mon, Jan 6, 2014 at 10:47 AM, Aaron <aarongmldt@gmail.com> wrote:
>
>> To set the stage:
>>
>> We create a table and pre-split it..then we start to ingest some data.
>>  During the ingest, the table splits a few more times maybe, and after the
>> ingest is done the table balances itself out across the tablet severs.
>>
>> What happens if we apply the spilt file again  to the same table?  From
>> what I can tell, nothing appears to change, but, just wanted to double
>> check..make sure I wasn't missing anything.
>>
>> Same question, but if we use a completely different spilt file, with
>> different splits?  Same result..nothing changes?
>>
>
>

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