Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
HBase >> mail # user >> multiple masters

Copy link to this message
Re: multiple masters
Great, thank you :D
I guess I need to read up more on zookeeper.

On Fri, Jan 28, 2011 at 10:56 AM, Stack <[EMAIL PROTECTED]> wrote:

> On Fri, Jan 28, 2011 at 8:52 AM, Weishung Chung <[EMAIL PROTECTED]>
> wrote:
> > Correct me if I am wrong :)
> > In HConnectionManager, it seems to me that a zookeeper instance is used
> to
> > get to the HBase master for META and ROOT info. What would happen if
> HBase
> > master became unavailable? Would zookeeper be able to get the ROOT and
> > info from another backup/replicated master? Sorry because I haven't got a
> > chance to browse deeper in the zookeeper codes yet :(
> >
> The locations of root is kept in zk and that of meta in the root
> region, not in master.  If master goes away, cluster continues to run.
> St.Ack