public void
    setBalancerRejectionsRequest(MasterProtos.BalancerRejectionsRequest balancerRejectionsRequest) {
    this.balancerRejectionsRequest = balancerRejectionsRequest;
  }
Request object to be used by ring buffer use-cases. Clients get records by sending this request
object. For each ring buffer use-case, add request payload to this class, client should set
namedQueueEvent based on use-case. Protobuf does not support inheritance, hence we need to work
with
hbase-server/src/main/java/org/apache/hadoop/hbase/namequeues/request/NamedQueueGetRequest.java