On Fri, Jan 28, 2011 at 8:10 AM, Weishung Chung <[email protected]> wrote:
> Is zookeeper responsible for the backup/replication of -ROOT- and .META.
> files?

No.  These are kept in HDFS and rely on its replication.

> It looks like I need multiple HBase masters setup to achieve high
> availability. In the multiple masters setup, would there be any data loss in
> the switch over after the first master became unavailable.
>

No.  Master is not in the read/write path.  Cluster can continue
responding to read/writes even when Master(s) is (are) down.
St.Ack

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