use linux heartbeat project and DRBD to build a backup namenode.
Jimmy
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From: "John Hui" <john.m....@gmail.com>
Sent: Monday, September 13, 2010 2:33 PM
To: <hdfs-dev@hadoop.apache.org>
Subject: namenode crash - recovery model?
Hi All,
I am new to Hadoop. I have been reading and playing around with Hadoop,
it
seems like the namenode is a single point of failure. I read about the
backup node which is basically a copy of the live namenode.
So if the namenode were to crash, what is some of the recovery model that
people have in place. Is there a way to configure hadoop to flip the the
backup node and use that as the primary name node if the primary namenode
goes down..
Thanks in advance,
John
