public void removeCompletedOperation(final TRemote key, RemoteProcedure rp) {
    BufferNode node = nodeMap.get(key);
    if (node == null) {
      LOG.warn("since no node for this key {}, we can't removed the finished remote procedure",
        key);
      return;
    }
    node.operationCompleted(rp);
  }
Add a remote rpc.
@param key the node identifier
hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/RemoteProcedureDispatcher.java