Command execution timeout for command: (PING)

[WLP-Lxr]

redisson version: 3.17.0
redis version: 6.2.4
reids cluster: master 20 slaves 40
redis config：
connectTimeout: 5000
timeout: 1000
retryAttempts: 3
retryInterval: 100
slaveConnectionMinimumIdleSize: 5
slaveConnectionPoolSize: 10
masterConnectionMinimumIdleSize: 1
masterConnectionPoolSize: 5
idleConnectionTimeout: 10000
loadBalancer: !<org.redisson.connection.balancer.RoundRobinLoadBalancer> {}
scanInterval: 30000
threads: 0
nettyThreads: 16
transportMode: NIO

I always receive this error with same servers ：

ERROR org.redisson.client.handler.PingConnectionHandler - Unable to send PING command over channel: [id: 0x100dcad5, L:XXXX / - R:XXXX]
org.redisson.client.RedisTimeoutException: Command execution timeout for command: (PING), params: [], Redis client: [addr=redis://XXXXX]
at org.redisson.client.RedisConnection.lambda$async$0(RedisConnection.java:245)
at io.netty.util.HashedWheelTimer$HashedWheelTimeout.expire(HashedWheelTimer.java:680)
at io.netty.util.HashedWheelTimer$HashedWheelBucket.expireTimeouts(HashedWheelTimer.java:755)
at io.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:483)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.lang.Thread.run(Thread.java:748)

My older redisson version is 3.16.7，I tried to upgrade the redisson version to 3.17.0 ，But it can't solve this problem.

[mrniko]

Can you share full stacktrace?

[WLP-Lxr]

Can you share full stacktrace?

Sry，It seems only be displayed this

[ultramagnus94]

it's the same for me (redisson v3.17.0, redis v7.0.4), even after that my application tried to connect back again to redis

[lee-create]

it's the same for me (redisson v3.17.5, redis v6.2.7), I suspect there is a problem here。

[mrniko]

It might be connected to #4441

[lee-create]

它可能连接到#4441
OK，I see，thanks。