What version of Hadoop are you/were you on? And did you run an NN
upgrade recently?
Can you also pastebin the full logs somewhere?
On Tue, Nov 6, 2012 at 11:34 AM, chendaya wrote:
> Hi, everyone
> I am getting this error in one or two nodes in a hadoop cluster where rest of
> the nodes are runn
If your replication factor is 3, this mean that you take those two nodes
without loosing any data and rebuild them
Rebalance the cluster after you are done, and all good to go!
Regards
Serge
On 11/6/12 8:04 AM, "chendaya" wrote:
>Hi, everyone
>I am getting this error in one or two nodes in a
Hi, everyone
I am getting this error in one or two nodes in a hadoop cluster where rest of
the nodes are running fine:
ERROR org.apache.hadoop.hdfs.server.datanode.DataNode: java.io.IOException:
* Upgrade is not supported from this older version of storage to the
current version. Please upgr
