biedongbin commented on issue #7986:
URL:
https://github.com/apache/incubator-seata/issues/7986#issuecomment-3870643882
问题找到了， 有点坑。。。。
nacos 2.1.1的bug, nacos 主动推送的rpc 消息内部 丢失了 clusters，正常的微服务那套集群模式 用不到
clusters 所以一切正常
seata 这边使用到了 clusters ，地址缓存目标key 为 group_name@@server_name@@cluster_name
然后就对不上了。。
查了内存里面发现类似如下的数据，所以就坑爹了， 但是客户端定时Job主动轮训去查的逻辑还没定位到，猜测是类似的情况
```
arthas@1]$ vmtool --action getInstances --className
com.alibaba.nacos.client.naming.cache.ServiceInfoHolder --express
'instances[1].getServiceInfoMap' -x 3
@ConcurrentHashMap[
@String[DEFAULT_GROUP@@seata-server@@default-group]:@ServiceInfo[
jsonFromServer=@String[{"name":"seata-server","groupName":"DEFAULT_GROUP","clusters":"default-group","cacheMillis":10000,"hosts":[{"instanceId":"100.77.106.222#10222#default-group#DEFAULT_GROUP@@seata-server","ip":"100.77.106.222","port":10222,"weight":1.0,"healthy":true,"enabled":true,"ephemeral":true,"clusterName":"default-group","serviceName":"DEFAULT_GROUP@@seata-server","metadata":{},"ipDeleteTimeout":30000,"instanceHeartBeatTimeOut":15000,"instanceHeartBeatInterval":5000,"instanceIdGenerator":"simple"},{"instanceId":"100.111.206.134#10222#default-group#DEFAULT_GROUP@@seata-server","ip":"100.111.206.134","port":10222,"weight":1.0,"healthy":true,"enabled":true,"ephemeral":true,"clusterName":"default-group","serviceName":"DEFAULT_GROUP@@seata-server","metadata":{},"ipDeleteTimeout":30000,"instanceHeartBeatTimeOut":15000,"instanceHeartBeatInterval":5000,"instanceIdGenerator":"simple"}],"lastRefTime":1770621517835,"checksum":"","allIPs":false,"reachProtectionThreshold":fa
lse,"valid":true}],
EMPTY=@String[],
ALL_IPS=@String[000--00-ALL_IPS--00--000],
SPLITER=@String[@@],
DEFAULT_CHARSET=@String[UTF-8],
name=@String[seata-server],
groupName=@String[DEFAULT_GROUP],
clusters=@String[default-group],
cacheMillis=@Long[10000],
hosts=@ArrayList[
@Instance[Instance{instanceId='100.77.106.222#10222#default-group#DEFAULT_GROUP@@seata-server',
ip='100.77.106.222', port=10222, weight=1.0, healthy=true, enabled=true,
ephemeral=true, clusterName='default-group',
serviceName='DEFAULT_GROUP@@seata-server', metadata={}}],
@Instance[Instance{instanceId='100.111.206.134#10222#default-group#DEFAULT_GROUP@@seata-server',
ip='100.111.206.134', port=10222, weight=1.0, healthy=true, enabled=true,
ephemeral=true, clusterName='default-group',
serviceName='DEFAULT_GROUP@@seata-server', metadata={}}],
],
lastRefTime=@Long[1770621517835],
checksum=@String[],
allIPs=@Boolean[false],
reachProtectionThreshold=@Boolean[false],
],
@String[DEFAULT_GROUP@@seata-server]:@ServiceInfo[
jsonFromServer=@String[{"name":"seata-server","groupName":"DEFAULT_GROUP","clusters":"","cacheMillis":10000,"hosts":[{"instanceId":"100.111.206.134#10222#default-group#DEFAULT_GROUP@@seata-server","ip":"100.111.206.134","port":10222,"weight":1.0,"healthy":true,"enabled":true,"ephemeral":true,"clusterName":"default-group","serviceName":"DEFAULT_GROUP@@seata-server","metadata":{},"ipDeleteTimeout":30000,"instanceHeartBeatTimeOut":15000,"instanceHeartBeatInterval":5000,"instanceIdGenerator":"simple"}],"lastRefTime":1770621778959,"checksum":"","allIPs":false,"reachProtectionThreshold":false,"valid":true}],
EMPTY=@String[],
ALL_IPS=@String[000--00-ALL_IPS--00--000],
SPLITER=@String[@@],
DEFAULT_CHARSET=@String[UTF-8],
name=@String[seata-server],
groupName=@String[DEFAULT_GROUP],
clusters=@String[],
cacheMillis=@Long[10000],
hosts=@ArrayList[
@Instance[Instance{instanceId='100.111.206.134#10222#default-group#DEFAULT_GROUP@@seata-server',
ip='100.111.206.134', port=10222, weight=1.0, healthy=true, enabled=true,
ephemeral=true, clusterName='default-group',
serviceName='DEFAULT_GROUP@@seata-server', metadata={}}],
],
lastRefTime=@Long[1770621778959],
checksum=@String[],
allIPs=@Boolean[false],
reachProtectionThreshold=@Boolean[false],
],
]
```
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