Hi, I read the comparison from this pdf: http://www.brianfrankcooper.net/pubs/ycsb-v4.pdf
hari On Mon, Nov 15, 2010 at 4:20 AM, Jonathan Gray <[email protected]> wrote: > HBase is well-suited for a high-write workload. > > Hari, I'm not sure what would be different in a database like Cassandra > with respect to updates and deletes? In this regard HBase and Cassandra are > nearly identical (updates are really just insertions of new versions, > deletions are actually tombstone markers... ie data is immutable once > written). > > JG > > > -----Original Message----- > > From: Hari Sreekumar [mailto:[email protected]] > > Sent: Friday, November 12, 2010 6:21 AM > > To: [email protected] > > Subject: Re: Newbie question > > > > Hi Gayatri, > > > > I am myself quite new to hbase but from my little > > experience > > and from whatever I have read, HBase is more suitable for environments > > with > > high read and write, but very few updates and no real deletions. It is > > more > > of a write once and forget kind of database. Cassandra or MongoDB might > > be > > more suitable for your requirement imo. My advice would be to consider > > those > > as well before making any decision. > > > > thanks, > > hari > > > > On Fri, Nov 12, 2010 at 7:00 PM, Gayatri Rao <[email protected]> > > wrote: > > > > > Hi All, > > > > > > I am new to hbase. I have been reading up documentation and studying > > how > > > hbase suits to our requirement. > > > > > > We want to be able to store a key and corresponding values. However, > > while > > > reading, i want to read values in sorted order something like the > > topN. Its > > > a web facing environment and our requirement is write heavy infact > > they are > > > updates of the already existing records (about 270K updates in an > > hour > > > though actual data that needs to be stored in it might be much much > > more). > > > Deletes would be in the order of a few thousands every day. > > > > > > I wanted to find out know your opinions on how good is hbase for this > > kind > > > of scenario. > > > > > > Thanks, > > > Gayatri > > > >
