Hey John, See https://issues.apache.org/jira/browse/HDFS-1064 for the JIRA where high availability strategies for the NameNode are discussed.
Thanks, Jeff On Mon, Sep 13, 2010 at 2:33 PM, John Hui <john.m....@gmail.com> wrote: > 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 >
