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Pig, mail # user - How can HBase return the metadata to the client?


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Re: How can HBase return the metadata to the client?
yonghu 2011-10-08, 10:18
Sorry about that.

Yong

On Sat, Oct 8, 2011 at 10:45 AM, Dmitriy Ryaboy <[EMAIL PROTECTED]> wrote:

> I suspect you meant to email the hbase user list, not the pig list?
>
>
> On Sat, Oct 8, 2011 at 12:02 AM, yonghu <[EMAIL PROTECTED]> wrote:
>
> > Hello,
> >
> > I read the blog
> > http://www.larsgeorge.com/2009/10/hbase-architecture-101-storage.htmland
> > tried to understand the architecture of the HBase. There is one thing
> that
> > makes me confusing. If I understand right, the client must connect the
> > Zookeeper cluster to get the metadata of particular table information and
> > then use this information to retrieve the table.
> > My question is the node which hosts the  ".META. table" and "-ROOT-
> region"
> > is the node which belongs to HBase cluster or Zookeeper cluster? If they
> > belongs to the Zookeeper cluster, what is the functionality of the Master
> > node in the HBase cluster, only assigning the work node when starting the
> > HBase? In my point of view, the Master node will maintain the ".META.
> > table"
> > and "-ROOT- region" information.
> >
> > Thanks!
> >
> > Yong
> >
>