想进行query state的时候碰到了这么个问题:
flink-appleyuchi-standalonesession-2-Desktop.log:2020-09-28 18:10:22,669 WARN org.apache.flink.runtime.webmonitor.retriever.impl.RpcGatewayRetriever [] - Error while retrieving the leader gateway. Retrying to connect to akka.tcp://flink@laptop:45297/user/rpc/dispatcher_1.
flink-appleyuchi-standalonesession-2-Desktop.log:2020-09-28 18:10:23,660 WARN org.apache.flink.runtime.webmonitor.retriever.impl.RpcGatewayRetriever [] - Error while retrieving the leader gateway. Retrying to connect to akka.tcp://flink@laptop:45297/user/rpc/dispatcher_1.
flink-appleyuchi-standalonesession-2-Desktop.log:2020-09-28 18:10:25,700 WARN org.apache.flink.runtime.webmonitor.retriever.impl.RpcGatewayRetriever [] - Error while retrieving the leader gateway. Retrying to connect to akka.tcp://flink@laptop:45297/user/rpc/dispatcher_1.
flink-appleyuchi-standalonesession-2-Desktop.log:2020-09-28 18:10:26,659 WARN org.apache.flink.runtime.webmonitor.retriever.impl.RpcGatewayRetriever [] - Error while retrieving the leader gateway. Retrying to connect to akka.tcp://flink@laptop:45297/user/rpc/dispatcher_1.
flink-appleyuchi-standalonesession-2-Desktop.log:2020-09-28 18:10:28,710 WARN org.apache.flink.runtime.webmonitor.retriever.impl.RpcGatewayRetriever [] - Error while retrieving the leader gateway. Retrying to connect to akka.tcp://flink@laptop:45297/user/rpc/dispatcher_1.
flink-appleyuchi-standalonesession-2-Desktop.log:2020-09-28 18:10:29,659 WARN org.apache.flink.runtime.webmonitor.retriever.impl.RpcGatewayRetriever [] - Error while retrieving the leader gateway. Retrying to connect to akka.tcp://flink@laptop:45297/user/rpc/dispatcher_1.
flink-appleyuchi-standalonesession-2-Desktop.log:2020-09-28 18:10:31,725 WARN org.apache.flink.runtime.webmonitor.retriever.impl.RpcGatewayRetriever [] - Error while retrieving the leader gateway. Retrying to connect to akka.tcp://flink@laptop:45297/user/rpc/dispatcher_1.
flink-appleyuchi-standalonesession-2-Desktop.log:2020-09-28 18:10:32,657 WARN org.apache.flink.runtime.webmonitor.retriever.impl.RpcGatewayRetriever [] - Error while retrieving the leader gateway. Retrying to connect to akka.tcp://flink@laptop:45297/user/rpc/dispatcher_1.
flink-appleyuchi-standalonesession-2-Desktop.log:2020-09-28 18:10:34,732 WARN org.apache.flink.runtime.webmonitor.retriever.impl.RpcGatewayRetriever [] - Error while retrieving the leader gateway. Retrying to connect to akka.tcp://flink@laptop:45297/user/rpc/dispatcher_1.
flink-appleyuchi-standalonesession-2-Desktop.log:2020-09-28 18:10:35,672 WARN org.apache.flink.runtime.webmonitor.retriever.impl.RpcGatewayRetriever [] - Error while retrieving the leader gateway. Retrying to connect to akka.tcp://flink@laptop:45297/user/rpc/dispatcher_1.
flink-appleyuchi-standalonesession-2-Desktop.log:2020-09-28 18:10:37,740 WARN org.apache.flink.runtime.webmonitor.retriever.impl.RpcGatewayRetriever [] - Error while retrieving the leader gateway. Retrying to connect to akka.tcp://flink@laptop:45297/user/rpc/dispatcher_1.
flink-appleyuchi-standalonesession-2-Desktop.log:2020-09-28 18:10:38,656 WARN org.apache.flink.runtime.webmonitor.retriever.impl.RpcGatewayRetriever [] - Error while retrieving the leader gateway. Retrying to connect to akka.tcp://flink@laptop:45297/user/rpc/dispatcher_1.
flink-appleyuchi-standalonesession-2-Desktop.log:2020-09-28 18:10:40,749 WARN org.apache.flink.runtime.webmonitor.retriever.impl.RpcGatewayRetriever [] - Error while retrieving the leader gateway. Retrying to connect to akka.tcp://flink@laptop:45297/user/rpc/dispatcher_1.原因:
集群的各个节点在局域网中的域名存在大写字母．
在/etc/hostname中做个映射即可
我的家里的集群是Desktop和Laptop两个节点
解决方案：
192.168.0.103 Laptop
192.168.0.102 Desktop
改成:
192.168.0.103 Laptop
192.168.0.103 laptop
192.168.0.102 Desktop
192.168.0.102 desktop
Reference: