Hi David, You shouldn't need to do anything to get your DNs to report in -- as best they can tell, it's the same NN. Do you see any error messages in the DN logs?
-Todd On Tue, May 21, 2013 at 12:30 AM, David Parks <[email protected]>wrote: > I’m on CDH4, and trying to recover both the namenode and cloudera manager > VMs from HDFS after losing the namenode.**** > > ** ** > > All of our backup VMs are on HDFS, so for the moment I just want to hack > something together, copy the backup VMs off HDFS and get on with properly > reconfiguring via CDH Manger.**** > > ** ** > > So I’ve installed a plain ‘ol namenode on one of my cluster nodes and > started it with –importCheckpoint (with the data from the secondary NN), > this seems to have worked, I have a namenode web UI up which expects to > find 32178 blocks.**** > > ** ** > > But my plain namenode (on the same hostname and IP as the old namenode) > says that there are no datanodes in the cluster.**** > > ** ** > > What do I need in order to configure the datanodes to report their blocks > into this new namenode (same IP & hostname)?**** > > ** ** > > Thanks,**** > > David**** > > ** ** > -- Todd Lipcon Software Engineer, Cloudera
