hbase-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Mehmet Simsek <nurettinsim...@gmail.com>
Subject Re: RowKey design with hashing
Date Thu, 14 Feb 2013 03:41:37 GMT
Thanks Lars

M.Nurettin Şimşek

On 14 Şub 2013, at 05:18, Ted Yu <yuzhihong@gmail.com> wrote:

> Jean-Marc:
> You can find almost all the details you need from this JIRA:
> HBASE-4218 Data Block Encoding of KeyValues (aka delta encoding / prefix
> compression)
> 
> Cheers
> 
> On Wed, Feb 13, 2013 at 6:09 PM, Jean-Marc Spaggiari <
> jean-marc@spaggiari.org> wrote:
> 
>> Hi Lars,
>> 
>> Can you please tell more about key prefix block encoding? Or refer to
>> some blog/doc? How it works, what it is, etc.?
>> 
>> Thanks,
>> 
>> JM
>> 
>> 2013/2/13, lars hofhansl <larsh@apache.org>:
>>> Depends on you search pattern.
>>> If you never care about scans ordering i.e. you only do point gets to see
>>> whether you've already seen an email address, do the hash part.
>>> 
>>> I'd perfer #1 over #2, because it would let you do efficient key prefix
>>> block encoding (FAST_DIFF).
>>> 
>>> -- Lars
>>> 
>>> 
>>> 
>>> ________________________________
>>> From: Nurettin Şimşek <nurettinsimsek@gmail.com>
>>> To: user@hbase.apache.org
>>> Sent: Wednesday, February 13, 2013 12:35 AM
>>> Subject: RowKey design with hashing
>>> 
>>> Hi All,
>>> 
>>> In our project mail adresses are row key. Which rowkey design  we should
>>> choose?
>>> 
>>> 1) com.yahoo@xxxx (Reversed)
>>> 2) xxxx@yahoo.com
>>> 3) md5 hash(xxxx@yahoo.com)
>>> 4) Any other solution.
>>> 
>>> Many thanks.
>>> 
>>> --
>>> M. Nurettin ŞİMŞEK
>> 

Mime
View raw message