Es启动报错 failed to send join request to master

[ekl01] failed to send join request to master [{ekl02}{Xw4iXnLHRti5WYs722z_3A}{wEq5izB_QUWOww2-o_7S_g}{elk02}{192.168.18.11:9300}{ml.machine_memory=1911857152, ml.max_open_jobs=20, xpack.installed=true, ml.enabled=true}], reason [RemoteTransportException[[ekl02][192.168.18.11:9300][internal:discovery/zen/join]]; nested: NotMasterException[Node [{ekl02}{Xw4iXnLHRti5WYs722z_3A}{wEq5izB_QUWOww2-o_7S_g}{elk02}{192.168.18.11:9300}{ml.machine_memory=1911857152, xpack.installed=true, ml.max_open_jobs=20, ml.enabled=true}] not master for join request]; ], tried [3] times

解决方法:
删除数据目录以及安装包中data目录,重启es