NameNode does not persist block locations; so this is still
recoverable if the configs are changed to use the new set of hostnames
to bind to/look up.
On Sat, Mar 23, 2013 at 9:01 AM, Azuryy Yu <[EMAIL PROTECTED]> wrote:
> it has issues, namenode save blockid->nodes, using ip addr if your slaves
> config file using ip addr instead of hostname.
> On Mar 23, 2013 10:14 AM, "Balaji Narayanan (பாலாஜி நாராயணன்)"
> <[EMAIL PROTECTED]> wrote:
>> Assuming you are using hostnAmes and not ip address in your config files
>> What happens when you start the cluster? If you are using IP address in your
>> configs just update them and start. It should work with no issues.
>> On Friday, March 22, 2013, John Meza wrote:
>>> I have a 18 node cluster that had to be physically moved.
>>> Unfortunately all the ip addresses were lost (recreated).
>>> This must have happened to someone before.
>>> Nothing else on the machines has been changed. Most importantly the data
>>> in HDFS is still sitting there.
>>> Is there a way to recover this cluster to a useable state?