David, this is a great point. This section already exists..
http://hbase.apache.org/book.html#keysize ... but I agree that several explicit examples would be very useful in this section to emphasize the point. On 8/15/11 4:17 PM, "Buttler, David" <[email protected]> wrote: >I seem to recall J-D mentioning recently that they use a single character >for their column family names. This is implicit in Section 6.4 (Try to >minimize row and column sizes), but you could maybe expand on the point a >little with some recommended actions. Reducing the size of the column >family name is much easier than reducing column qualifier name (as those >are not always under the designers control). It is a little >counter-intuitive as a lot of popular press emphasizes that "a couple of >bytes do not matter". However, when you store it in very single cell, it >starts to add up -- even with compression. > >Just something I wish I would have understood back when I last designed >an hbase schema. > >Dave > > >-----Original Message----- >From: Doug Meil [mailto:[email protected]] >Sent: Saturday, August 13, 2011 6:21 PM >To: [email protected] >Subject: Re: Column family limitations > > >See the Hbase book... > >http://hbase.apache.org/book.html#number.of.cfs > > > > > >On 8/13/11 8:17 PM, "Mark" <[email protected]> wrote: > >>I don't quite remember where but I think I remember hearing that you >>should only have a handful of column families (1-4) per table. Is this >>true and if so, why? >> >>Thanks >
