Adding another index is adding shards.. you're just going about it the 
wrong way.

The point of shard splitting is that you always have the right number of 
shards.

FULLY re-indexing all your data is silly. You have to re-read ALL of it 
again, and re-emit it, and re-index it.  

With shard splitting, if you're at capacity, you just add new hardware, the 
largest shard splits in half, and then they move to another box.

I suspect anyone against this doesn't really have that much data.  

On Thursday, December 11, 2014 3:46:21 PM UTC-8, Jörg Prante wrote:
>
> Shard splitting is an anti-pattern if done on server side. If you really 
> need more shards,  you have not made good planning and you can always add 
> another index and use index aliasing to search on both. Plus, there are 
> export/import tools if you want reindexing from client side.
>
>>
>> 

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