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From Jesse Yates <>
Subject Re: ResultSet size
Date Tue, 06 Oct 2015 15:46:39 GMT
So HBase (and by extension, Phoenix) does not do true "streaming" of rows -
rows are copied into memory from the HFiles and then eventually copied
en-mass onto the wire. On the client they are pulled off in chunks and
paged through by the client scanner. You can control the batch size (amount
of rows in each 'page') via the usual HBase client configurations

On Tue, Oct 6, 2015 at 8:38 AM Sumit Nigam <> wrote:

> Hi,
> Does Phoenix buffer the result set internally? I mean when I fire a huge
> skip scan IN clause, then the data being returned may be too huge to
> contain in memory. So, ideally I'd like to stream data through the
> method. So, my question is does Phoenix really stream
> results?
> And if so, is there a way to control how much is loads in one time in
> client side before its next() fetches next batch of data from region
> servers to client?
> Best regards,
> Sumit

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