IzayuiAki commented on issue #6915:
URL:
https://github.com/apache/incubator-seata/issues/6915#issuecomment-2443536468
@funky-eyes 您好，我在学习过程中也遇到类似问题，还请麻烦帮忙解答一下，万分感谢！
seata-server配置：
```
seata:
config:
# support: nacos, consul, apollo, zk, etcd3
type: file
registry:
# support: nacos, eureka, redis, zk, consul, etcd3, sofa
type: nacos
nacos:
server-addr: 192.168.5.7:8848
username: nacos
password: 123456
namespace: 65bd3cce-994e-4870-b297-f7767f2ca82e
group: my-group1
application: seata-server
cluster: HB
```
seata-client配置：
```
seata:
tx-service-group: demo-tx
service:
vgroup-mapping:
demo-tx: HB
registry:
type: nacos
nacos:
application: seata-server
server-addr: 192.168.5.7:8848
username: nacos
password: 123456
group-id: my-group1
namespace: 65bd3cce-994e-4870-b297-f7767f2ca82e
```
使用版本：SpringCloudAlibaba 2023.0.1.0 + Seata 2.0.0
在启动过程中，服务端正常启动并成功注册到nacos，但seata客户端启动时输出错误日志
```
i.s.c.r.netty.NettyClientChannelManager : no available service found in
cluster 'HB', please make sure registry config correct and keep your seata
server running
```
日志输出处源码：
```
if (CollectionUtils.isEmpty(availList)) {
RegistryService registryService = RegistryFactory.getInstance();
String clusterName =
registryService.getServiceGroup(transactionServiceGroup);
if (StringUtils.isBlank(clusterName)) {
LOGGER.error("can not get cluster name in registry config '{}{}',
please make sure registry config correct",
ConfigurationKeys.SERVICE_GROUP_MAPPING_PREFIX,
transactionServiceGroup);
return;
}
if (!(registryService instanceof FileRegistryServiceImpl)) {
LOGGER.error("no available service found in cluster '{}', please
make sure registry config correct and keep your seata server running",
clusterName);
}
return;
}
```
通过断点查看`if (!(registryService instanceof
FileRegistryServiceImpl)){...}`处，发现`registryService`对象的实际类型为`io.seata.discovery.registry.nacos.NacosRegistryServiceImpl`，由此而输出该日志，并且在seata-server端的控制台日志中也没有发现RM注册成功相关日志。
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