What no ack from slave back to master??? Sent from a remote device. Please excuse any typos...
Mike Segel On Jun 19, 2013, at 12:41 AM, Stack <st...@duboce.net> wrote: > On Mon, Jun 17, 2013 at 12:06 PM, Patrick Schless <patrick.schl...@gmail.com >> wrote: > >> Working on setting up HBase replication across a VPN tunnel, and following >> the docs here: [1] (and here: [2]). >> >> Two questions, regarding firewall allowances required: >> 1) The docs say that the zookeeper clusters must be able to reach each >> other. I don't see any docs on why this is (the high-level diagram doesn't >> even show a ZK ensemble on the client side). Is it correct that the ZK >> ensembles need to communicate with each other? > Yes. ZK ensemble is the gateway to the cluster whether connecting locally > or remotely as replication does. > > > >> 2) What ports are required to be open for inter-cluster Region Server >> communication? Is it only the slave that needs to accept requests from the >> master, or does the master also accept incoming requests from the slaves? > > > Do you mean master 'cluster' in the above? If so, yes, the master cluster > sends data to the slave cluster (master RS to slave RSs). The > communication is one way; master to slave cluster. > > If you are asking if hbase masters need to communicate, the answer is no. > > St.Ack > P.S. Doug, we need to add above to doc
