Also check out this blog post for a detailed explanation of ACID in HBase: http://hadoop-hbase.blogspot.com/2012/03/acid-in-hbase.html
From: tsuna <[EMAIL PROTECTED]>
To: Steve Berg <[EMAIL PROTECTED]>
Cc: HBase users <[EMAIL PROTECTED]>
Sent: Saturday, February 16, 2013 4:48 PM
Subject: Re: HBase and Data Integrity
On Sat, Feb 16, 2013 at 12:28 PM, Steve Berg <[EMAIL PROTECTED]> wrote:
> I have some questions for HBase DB:
I'm moving this thread to the HBase user mailing list.
> How to ensure data integrity?
Data stored by HBase in HDFS has 3 replicas of the data and checksums.
> Are there methods ensure the integrity?
It's all built-in, I'm not sure what you meant by "methods" here.
> Does HBase primary key? or alternatives
HBase has only one primary key per table.
You may wanna look at the HBase Book, Chapter 5. "Data Model":
> Foreign key?
> Referential Integrity?
> How are the ACID properties to be implemented?
Benoit "tsuna" Sigoure