Thanks a lot for clearing this up. On Thu, Oct 25, 2012 at 4:55 PM, Harsh J <[email protected]> wrote:
> Jaco, > > There is no BackupNode in 1.x. The docs were by mistake, see > http://search-hadoop.com/m/RMLq71stu6W. > > Also, we're removing BackupNode and CheckpointNode in future (trunk > for now) in favor of HA NameNodes and the SecondaryNameNode. > > On Thu, Oct 25, 2012 at 8:13 PM, Jaco Joubert <[email protected]> wrote: > > Hi, > > > > I installed version 1.0.3 of Hadoop and I'm interested in running the > > BackupNode. > > The user guide explains the BackupNode and how to configure / start it: > > http://hadoop.apache.org/docs/r1.0.3/hdfs_user_guide.html#Backup+Node > > I'm having difficulty starting the BackupNode and I assume that either > the > > documentation is out-of-synch, or the BackupNode is not really supported > in > > 1.0.3. I say this because: > > > > The documented command to start the BackupNode doesn't exist: > > bin/hdfs namenode -checkpoint > > (the "hdfs" script doesn't exist at all) > > > > I also tried the "bin/hadoop namenode" command, but it only supports > these > > arguments: > > Usage: java NameNode [-format] | [-upgrade] | [-rollback] | [-finalize] | > > [-importCheckpoint] > > > > Am I doing something wrong, or is the BackupNode not supported in 1.0.3 > (and > > therefore the documentation incorrect)? > > > > Regards, > > Jaco > > > > -- > Harsh J >
