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From Stack <st...@duboce.net>
Subject Re: Disk space usage of HFilev1 vs HFilev2
Date Tue, 28 Aug 2012 18:54:26 GMT
On Tue, Aug 28, 2012 at 11:42 AM, lars hofhansl <lhofhansl@yahoo.com> wrote:
> Are we terribly concerned about 3.5% of extra disk usage?
> HFileV2 was designed to be more main memory efficient, which is in much shorter supply
than disk space (bloom filters and index blocks are interspersed with data blocks and loaded
when needed, etc)

I wouldn't get my knickers in a twist about 3.5% but a mild, passing
interest, yes.

> The stored MemstoreTS was introduced in 0.92, which also introduced HFileV2.

Yeah, IIRC, its a metadata field added to each storefile.


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