Bug: Camellia does not renew cluster info when Redis cluster is changed about camellia HOT 5 CLOSED

case1: master down, slave promoted to master
master node will invalid and connect refused, so getClient method will get null for the old master node, proxy will try renew

case2: master alive, slave promoted to master inside the plan
the old master node will return MOVED reply, proxy will redirect to the new master node and try renew

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pls see this method:

AsyncCamelliaRedisClusterClient#getClient

and see line549 of AsyncCamelliaRedisClusterClient.java

https://github.com/netease-im/camellia/blob/master/camellia-redis-proxy/src/main/java/com/netease/nim/camellia/redis/proxy/upstream/cluster/AsyncCamelliaRedisClusterClient.java

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AsyncCamelliaRedisClusterClient#getClient renew when redis client == null or connection is idle right? how does camellia renew when nodes of cluster down

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I means slave is promoted to master when master down

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many thanks

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