hbase-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From edward choi <mp2...@gmail.com>
Subject Re: Inserting data directly into HBase?
Date Wed, 02 Mar 2011 00:11:36 GMT
Thanks Michael.
That cleared things up for me. :)

2011/3/1 Michael Segel <michael_segel@hotmail.com>

>
> Hi,
>
> The short answer is yes.
>
> I would have to guess that the reason you see examples of data first going
> to HDFS is that they are using a map/reduce to insert the data. You don't
> have to do this.
> You can make a connection from any "cloud aware" machine (Actually its just
> loading the proper config data in to your java app. (And even that doesn't
> have to be java.)
>
> The simplest thing is that you open a connection to HBase, instantiate an
> HTable object (target), and then a Put object that you use to write to
> HBase.
>
> HTH
>
> -Mike
>
>
> > Date: Tue, 1 Mar 2011 20:28:58 +0900
> > Subject: Inserting data directly into HBase?
> > From: mp2893@gmail.com
> > To: common-user@hadoop.apache.org; user@hbase.apache.org
> >
> > Hi,
> >
> > I am trying to crawl several thousands of rss feeds every 30 minutes.
> >
> > I thought I could use Hadoop and HBase as my platform.
> >
> > However, I am not familiar with the HBase architecture and was wondering
> if
> > I could insert crawled news articles directly into HBase without first
> > saving it into HDFS.
> > I am asking this dumb question because all the HBase examples I saw in
> > reference books are always starting with saving data to HDFS.
> >
> > And also, If I have 2 computers comprised of A for HDFS, and B for HBase,
> > what happens when I insert data directly into HBase?
> > Is the data stored in B automatically and a pointer is made to A?
> > Or is the data stored in A and a pointer is made to itself?
> > I really have no idea how HBase operates :(
>
>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message