Yes indeed. thank you very much Ted ________________________________ From: Ted Yu <[email protected]> Sent: Saturday, February 11, 2017 3:40:50 PM To: [email protected] Subject: Re: On HBase Read Replicas
Please take a look at the design doc attached to https://issues.apache.org/jira/browse/HBASE-10070. Your first question would be answered by that document. Cheers On Sat, Feb 11, 2017 at 2:06 PM, jeff saremi <[email protected]> wrote: > The first time I heard replicas in HBase the following thought immediately > came to my mind: > To alleviate the load in read-heavy clusters, one could assign Region > servers to be replicas of others so that the load is distributed and there > is less pressure on the main RS. > > Just 2 days ago a colleague quoted a paragraph from HBase manual that > contradicted this completely. Apparently, the replicas do not help with the > load but they actually contribute to more traffic on the network and on the > underlying file system > > Would someone be able to give us some insight on why anyone would want > replicas? > > And also could one easily change this behavior in the HBase native Java > client to support what I had been imagining as the concept for replicas? > > > thanks >
