First of all, the secondary namenode is not a what you might think a secondary is - it's not failover device. It does make a copy of the filesystem metadata periodically, and it integrates the edits into the image. It does *not* provide failover.
Second, you specify its IP address in hadoop-site.xml. This is where you can override the defaults set in hadoop-default.xml. dbr On Thu, May 14, 2009 at 9:03 AM, Rakhi Khatwani <rakhi.khatw...@gmail.com>wrote: > Hi, > I wanna set up a cluster of 5 nodes in such a way that > node1 - master > node2 - secondary namenode > node3 - slave > node4 - slave > node5 - slave > > > How do we go about that? > there is no property in hadoop-env where i can set the ip-address for > secondary name node. > > if i set node-1 and node-2 in masters, and when we start dfs, in both the > m/cs, the namenode n secondary namenode processes r present. but i think > only node1 is active. > n my namenode fail over operation fails. > > ny suggesstions? > > Regards, > Rakhi >
