Hi, We have our hadoop cluster running with hadoop 1.2.1 and hbase 0.94.14. Now we are planing to move it to hadoop 2.4.0,hbase 0.98.2.
if we migrate to the above newer versions, will there be any data loss? Do we need to take any cluster data backup before migrating to newer version of hadoop 2.4.0? Please let us know if there are any prerequisites need to be followed before migrating from hadoop 1.2.1. to 2.4.0. Thanks oc.tsdb
