How to GET row name/column name in HBase using JAVA API
Hello guys, I m trying to use Java to manipluate HBase using its API. Atm, I m trying to do some simple CRUDs activities with it and from here a little problem arise. What I was trying to make is : Given an existing table, display/get existed row name ( in order to update, manipulate datas ) , columns name ( in String ? – or bytes ? ) , I could see that HstoreKey in HBase API allow to get the Row values but it wont specific what table(s) it working on ?? So if any of you could please, show me how to get rows, columns family names of a given table, I would thanks in advance. Best Regards, Trịnh Tuấn Cường Luvina Software Company Website : www.luvina.net Address : 1001 Hoang Quoc Viet Street Email : [EMAIL PROTECTED],[EMAIL PROTECTED] Mobile : 097 4574 457
RE: Question about Hadoop 's Feature(s)
Dear Mr/Mrs Owen O'Malley, First I would like to thank you much for your reply, it was somehow the exact answer which I expected. As I read about the Query Language of Hadoop, it is a combination of Pig_Pig Latin, Have,HBase,Jaql and more... and I could see that Hadoop have an advantage SQL-like query language. The most thing I was curous bout is Hadoop's security level which is hard to find in any documents I searched. Like many of your organization, we are believing in the fast growing of Hadoop and intend to use it in our serious projects. Once again, thanks for the reply, now I could tell our clients clearly about Hadoop. Best Regards. Tuan Cuong, Trinh. [EMAIL PROTECTED] Luvina Software Company. Website : www.luvina.net -Original Message- From: Owen O'Malley [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 24, 2008 11:27 PM To: core-user@hadoop.apache.org Subject: Re: Question about Hadoop 's Feature(s) On Sep 24, 2008, at 1:50 AM, Trinh Tuan Cuong wrote: > We are developing a project and we are intend to use Hadoop to > handle the processing vast amount of data. But to convince our > customers about the using of Hadoop in our project, we must show > them the advantages ( and maybe ? the disadvantage ) when deploy the > project with Hadoop compare to Oracle Database Platform. The primary advantage of Hadoop is scalability. On an equivalent hardware budget, Hadoop can handle much much larger databases. We had a process that was run once a week on Oracle that is now run once an hour on Hadoop. Additionally, Hadoop scales out much much farther. We can store petabytes of data in a single Hadoop cluster and have jobs that read and generate 100's of terabytes. The disadvantage of Hadoop is that it is still relatively young and growing fast, so there are growing pains. Hadoop has recently gotten higher level query languages like SQL (Pig, Hive, and Jaql), but still doesn't have any fancy report generators. Hadoop only has very primitive security at the moment, although I expect that to change in the next 6 months. -- Owen
Question about Hadoop 's Feature(s)
Hi, We are developing a project and we are intend to use Hadoop to handle the processing vast amount of data. But to convince our customers about the using of Hadoop in our project, we must show them the advantages ( and maybe ? the disadvantage ) when deploy the project with Hadoop compare to Oracle Database Platform. So I would like to have a full feature(s) list of Hadoop, which would describe what features are integrated in the lastest version of Hadoop ( 0.18.1). Especially features related to the area of manipulating database – support user facilitating the use of database – and maybe some features about security,platform supports which are not related to the manipulating database process. P.S : I did google and yahoo the features list of Hadoop for several days but no clues or just a small features of HDFS or MapReduce, Hadoop on Demand stand-alone, what I really want is the completed feature list of the leastest version. Thanks in advance if any help, or links. Best Regards, Trịnh Tuấn Cường Luvina Software Company Website : www.luvina.net Address : 1001 Hoang Quoc Viet Street Email : [EMAIL PROTECTED],[EMAIL PROTECTED] Mobile : 097 4574 457
