default CompletableFuture<Void> addReplicationPeer(String peerId,
    ReplicationPeerConfig peerConfig) {
    return addReplicationPeer(peerId, peerConfig, true);
  }
Add a new replication peer for replicating data to slave cluster
@param peerId     a short name that identifies the peer
@param peerConfig configuration for the replication slave cluster
hbase-client/src/main/java/org/apache/hadoop/hbase/client/AsyncAdmin.java