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From Doug Meil <doug.m...@explorysmedical.com>
Subject Re: length and size of a column family name or qualifier vs. amount of disk storage
Date Tue, 14 Feb 2012 18:18:11 GMT

Also see here...

http://hbase.apache.org/book.html#keyvalue

Compression will make it better on disk, but it will inflate over the wire.



On 2/14/12 12:40 PM, "Jean-Daniel Cryans" <jdcryans@apache.org> wrote:

>> We are assuming the longer cf/qual would be written to HDFS billions of
>> times and would be wasteful.  Is that a correct assumption?
>
>Yes, also that's covered a bit in:
>http://hbase.apache.org/book.html#keysize
>
>>
>> Does the answer change if you use Snappy compression?
>
>Any compression will make it better, also have a look at this jira
>which was recently committed to trunk (adding prefix compression):
>https://issues.apache.org/jira/browse/HBASE-4218
>
>J-D
>



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