如knox日志显示Failed to start gateway: org.apache.hadoop.gateway.services.ServiceLifecycleException: Gateway SSL Certificate is Expired. Server will not start. 请到对应异常节点的ECS上执行sudo mv /usr/lib/knox-current/data/security/keystores/gateway.jks /usr/lib/knox-current/data/security/keystores/bak_gateway.jks 之后重新启动服务即可。