Dear All, Please let me know your thoughts on viable approaches to fail over HBase cluster across data centers in case of a primary data center outage. The deployment scenario has zero data loss as one of the primary design goals. Deployment scenario is Active-Passive. In case of active cluster being down, there must be zero data loss fail over to the passive cluster.
I understand that the built-in table level replication using 'add_peer' might still lead to data loss since it is asynchronous. As a related note, is there is a way to specify the location (e.g. network drive) where HBase WAL files in HDFS need to be written to ? The network drive has synchronous replication across data centers. If the WAL files can be written to the replicated network drives, can we recover in-flight data in the passive cluster and resume operations from there ? Regards, Sreeram
