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HBase, mail # user - major differences with Cassandra


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Re: major differences with Cassandra
Amandeep Khurana 2010-07-31, 18:50
More info at http://blog.amandeepkhurana.com/2010/05/comparing-pnuts-hbase-and-cassandra.html

-Amandeep

Sent from my iPhone

On Jul 30, 2010, at 9:03 PM, Otis Gospodnetic
<[EMAIL PROTECTED]> wrote:

> I don't have the URL handy, but just the other day I read some Cassandra/HBase
> blog post where Cassandra was described as having no SPOF, but somebody left
> some very "strong comments" calling out that and a few other claims as false.
> Ah, I remember, here is the URL:
>
> http://blog.mozilla.com/data/2010/05/18/riak-and-cassandra-and-hbase-oh-my/
>
>
> Otis----
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>
> ----- Original Message ----
>> From: Jeff Zhang <[EMAIL PROTECTED]>
>> To: [EMAIL PROTECTED]
>> Sent: Thu, July 8, 2010 1:34:18 AM
>> Subject: Re: major differences with Cassandra
>>
>> HBase do not have super column family.
>>
>> And I can list the following major  difference between hbase and cassandra (
>> welcome any supplement) :
>>
>> 1.  HBase is master-slave architecture, while cassandra has no master, and
>> you  can consider it as p2p structure, and it has no single point of failure.
>> 2.  HBase is strong consistency while cassandra is eventual consistency
>> (although  you can tune it to be strong consistency)
>>
>>
>> On Thu, Jul 8, 2010 at 1:26  PM, S Ahmed <[EMAIL PROTECTED]>  wrote:
>>
>>> Hello!
>>>
>>> I was hoping some has experiences with  both Cassandra and HBase.
>>>
>>> What are the major differences between  Cassandra and HBase?
>>>
>>> Does HBase have the concept of  ColumnFamilies and SuperColumnFamilies like
>>> Cassandra?
>>>
>>> Where in the wiki does it go over designing a data  model?
>>>
>>>
>>> thanks!
>>>
>>
>>
>>
>> --
>> Best  Regards
>>
>> Jeff Zhang
>>