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 < [email protected]> 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 <[email protected]>: > > 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 <[email protected]> > > To: [email protected] > > 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) [email protected] > > 3) md5 hash([email protected]) > > 4) Any other solution. > > > > Many thanks. > > > > -- > > M. Nurettin ŞİMŞEK >
