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From Ian Holsman <>
Subject Re: Cassandra vs HBase
Date Tue, 08 Dec 2009 06:07:33 GMT
This is slightly off-topic

There is a recent project called hadoop online (hop) on google-code  
that promises a online/continuous query ability on top of hadoop which  
should allow for near real time activities instead of the batch stuff  
that mapred does

Sent from my phone
Ian Holsman - 703 879-3128

On 06/12/2009, at 3:12 PM, Joseph Bowman <>  

> When I wrote my Why Cassandra article, I didn't get into the why I  
> didn't choose x platform because I didn't want to start a flame war  
> by doing comparisons. For HBase, the primary reason I didn't choose  
> it is that while there were benchmarks of what it could  
> theoretically do, there wasn't any real real world deployments  
> proving it. My experience as a systems administrator is that it's  
> best to go with a product that's been proven over time in real world  
> scenarios.
> I'll add to this though, that nothing nosql, even Cassandra, has  
> reached the point where I feel it's no-brainer to choose it over  
> anything, including sql based solutions like mysql and oracle. It  
> really comes down to your requirements.
> On Sat, Dec 5, 2009 at 11:04 PM, Matt Revelle <>  
> wrote:
> On Dec 5, 2009, at 21:45, Joe Stump <> wrote:
> On Dec 5, 2009, at 7:41 PM, Bill Hastings wrote:
> [Is] HBase used for real timish applications and if so any ideas  
> what the largest deployment is.
> 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.
> Just my $0.02.
> --Joe
> While Hadoop MapReduce isn't meant for realtime use, HBase can  
> handle it.
> Over last summer there were some benchmarks included in HBase/Hadoop  
> presentations that showed, IIRC, performance comparable to Cassandra.

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