@Override
  public Iterator<ServerName> getBootstrapNodes() {
    return bootstrapNodeManager.getBootstrapNodes().iterator();
  }
Return pause time configured in {@link HConstants#HBASE_RPC_SHORTOPERATION_RETRY_PAUSE_TIME}}
@return pause time
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java