Hi, Currently we are designing an architecture for a Accounting SaaS and e-commerce website. As both of them will store financial data - transaction, redundancy, HA and data integrity is very important. As I am not a master of HBase architecture and implementation I am eagerly waiting for your comments on as follows:
* We will go live from January 2011, in that time frame should we develop using 0.21-SNAPSHOT or should we stick to 0.20.x? Ideally I would not want to go ahead with a snapshot in production and also would not want to make an upgrade within few months (because of some problems noticed in the mailing list regarding upgrade and I am a bit skeptical about it in general). * Transaction was a contrib module of HBase but it seems recently removed from the 0.21-SNAPSHOT. In light of it what would be the way to achieve transaction? * NN was (if I am not mistaken) a SPoF, I also learnt that its supposed to be fixed in 0.21, is that in trunk already? * What kind of data loss should we design to? * Is there any professional service provider who could help us train for deployment, help optimize and in case we need emergency provide service? (P.S. I contacted Cloudera via email 11 days back and still waiting for a reply, may be they are not interested any alternate would do great!) I eagerly hope for some help and guideline on these queries. -- Imran M Yousuf Entrepreneur & Software Engineer Smart IT Engineering Dhaka, Bangladesh Email: im...@smartitengineering.com Blog: http://imyousuf-tech.blogs.smartitengineering.com/ Mobile: +880-1711402557
