es集群突然踢掉好多节点

[WARN ][transport                ] [node-10.11.11.1] Transport response handler not found of id [13966464]

[WARN ][transport                ] [node-10.11.11.1] Transport response handler not found of id [13979999]

[WARN ][transport                ] [node-10.11.11.1] Transport response handler not found of id [13984927]

[INFO ][cluster.service          ] [node-10.11.11.1] removed {{node-10.10.15.14}{jeCv9a5XSz2Q825sLiO7ow}{10.10.15.14}{10.10.15.14:9300}{master=false},}, reason: zen-disco-receive(from master [{node-10.14.14.73}{---ghXGNQAWGj5H9Qx2MCg}{10.14.14.73}{10.14.14.73:9300}{data=false, master=true}])

用的es2.4