Thanks for the reply JD! I came to know about this online schema setting shortly after I made the post.
And yes ,I know the hbase.replication needs to be kept set to true. However enabling that on a live cluster is not an issue for as we can do that incrementally one region server at a time after having moved all the regions on the former to a different region server (by executing the region_mover script). In other words, we always move all the regions on a given region server to a different region server before upgrading it (for co-processor changes or any config changes) that requires a subsequent restart. This makes sure that our app is not unavailable on the affected regions. And once the upgrade is complete we move the regions back to the region server using the same region_mover script. -- View this message in context: http://apache-hbase.679495.n3.nabble.com/Altering-table-column-family-attributes-without-disabling-the-table-tp4048260p4048267.html Sent from the HBase User mailing list archive at Nabble.com.
