elasticsearch采用TransportClient删除数据时出现NoNodeAvailableException

Lost task 114.0 in stage 109.0 (TID 1007, hadoop-32.chinacscs.com, executor 3): NoNodeAvailableException[None of the configured nodes were available: [{node-2}{TeBZr2TjRkS85g1CWju9tQ}{7wQ2J2D2QDuycFvtYGfcAQ}{10.100.44.81}{10.100.44.81:9300}{ml.machine_memory=25094541312, ml.max_open_jobs=20, xpack.installed=true, ml.enabled=true}, {node-3}{VOqsjadbR3aFP73aYu2_Mg}{CRMW5rJCRGGxJlmdjN-Ufg}{10.100.44.82}{10.100.44.82:9300}{ml.machine_memory=25094541312, ml.max_open_jobs=20, xpack.installed=true, ml.enabled=true}, {node-1}{8IMKTsLSTiatlRn7GOxScg}{XnS9zUE9QayewE_AOwsBkw}{10.100.44.80}{10.100.44.80:9300}{ml.machine_memory=25094541312, ml.max_open_jobs=20, xpack.installed=true, ml.enabled=true}]]; nested: NodeNotConnectedException[[node-1][10.100.44.80:9300] Node not connected]