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Subject: Re: Cassandra vs HBase
From: Matt Revelle <mrevelle@gmail.com>
In-Reply-To: <9BD6B75A-D0CA-4A3D-8060-29D8E1C6982C@digitalreasoning.com>
Date: Sun, 6 Dec 2009 00:34:49 -0500
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 <AAC74695-C915-4DEC-84D8-2DF426EC1964@joestump.net>
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To: cassandra-user@incubator.apache.org

Cassandra performance likely still beats HBase, but according to the =
"Powered By" page on the HBase wiki it is being used to handle realtime =
requests by StumbleUpon, Meetup, and Streamy =
(http://wiki.apache.org/hadoop/Hbase/PoweredBy).

These two documents contain some performance numbers:
http://static.last.fm/johan/nosql-20090611/hbase_nosql.pdf  (skip to =
page 22)
=
http://www.slideshare.net/schubertzhang/hbase-0200-performance-evaluation

Both Cassandra and HBase are useful tech, I just wanted to point out =
that HBase performance has improved over the past year and it can handle =
realtime requests.

On Dec 5, 2009, at 11:08 PM, Tim Estes wrote:

> Can you link/reference those? I haven't seen random read or write =
performance numbers published around V0.20 Hbase that are within 5x of =
Cassandra. I'm very curious about this...
>=20
> Sent from my iPhone
>=20
> On Dec 5, 2009, at 11:05 PM, "Matt Revelle" <mrevelle@gmail.com> =
wrote:
>=20
>> On Dec 5, 2009, at 21:45, Joe Stump <joe@joestump.net> wrote:
>>=20
>>>=20
>>> On Dec 5, 2009, at 7:41 PM, Bill Hastings wrote:
>>>=20
>>>> [Is] HBase used for real timish applications and if so any ideas =
what the largest deployment is.
>>>=20
>>> I don't know of anyone off the top of my head who's using anything =
built on top of Hadoop for a real-time environment. Hadoop just wasn't =
built for that. It was built, like MapReduce, for crunching absurd =
amounts of data across hundreds of nodes in a "reasonable" amount of =
time.
>>>=20
>>> Just my $0.02.
>>>=20
>>> --Joe
>>>=20
>>=20
>> While Hadoop MapReduce isn't meant for realtime use, HBase can handle =
it.
>>=20
>> Over last summer there were some benchmarks included in HBase/Hadoop =
presentations that showed, IIRC, performance comparable to Cassandra.
>>=20