----- Original Message ----- From: Mayuran Yogarajah <mayuran.yogara...@casalemedia.com> Date: Tuesday, October 18, 2011 4:24 am Subject: Hadoop node disk failure - reinstall question To: "common-user@hadoop.apache.org" <common-user@hadoop.apache.org>
> One of our nodes died today, it looks like the disk containing the > OS > expired. I will need to reinstall the machine. > Are there any known issues with using the same hostname / IP again, > or > is it better to give it a new IP / host name ? > > The second disk on the machine is still operational and contains > HDFS > data so I plan on mounting it. Is this ill-advised? Should I just > wipe > that disk too ? Copying that data to new machine would be good option. It is gain depending on the replication. If you have enough replicas in your cluster. then automatically replication will happen to new nodes. In that case you need not even worry about old data. > > thanks, > M >
