> I have two different hadoop clusters in production. One cluster is used as > backing for HBase and the other for other things. Both hadoop clusters are > using the same version 1.0 and I want to merge them and make them one. I > know, one possible solution is to copy the data across, but the data is > really huge on these clusters and it will hard for me to compromise with > huge downtime. > Is there any optimal way to merge two hadoop clusters. >
This is not a supported feature. Hence this activity would require understanding low level Hadoop details, quite a bit of hacking and is not straightforward. Copying data from the clusters is the simplest solution.
