io.lettuce.core.protocol.RedisProtocolException: Invalid first byte: 57 (9) at buffer index 56910 decoding using RESP3

[puneet1992]

Getting the above error with lettuce 6.3.0.RELEASE. here is the complete stack trace.

Connection failed to Redis pubsub node RedisNode(host=antelope-rtm-load-cluster.2ouka2.clustercfg.use1.cache.amazonaws.com, port=6379, password=, isSSLEnabled=false) 
io.lettuce.core.protocol.RedisProtocolException: Invalid first byte: 57 (9) at buffer index 56910 decoding using RESP3
	at io.lettuce.core.protocol.RedisStateMachine.readReplyType(RedisStateMachine.java:612)
	at io.lettuce.core.protocol.RedisStateMachine.doDecode(RedisStateMachine.java:330)
	at io.lettuce.core.protocol.RedisStateMachine.decode(RedisStateMachine.java:300)
	at io.lettuce.core.protocol.CommandHandler.decode0(CommandHandler.java:813)
	at io.lettuce.core.protocol.CommandHandler.decode(CommandHandler.java:786)
	at io.lettuce.core.protocol.CommandHandler.decode(CommandHandler.java:630)
	at io.lettuce.core.pubsub.PubSubCommandHandler.decode(PubSubCommandHandler.java:112)
	at io.lettuce.core.protocol.CommandHandler.channelRead(CommandHandler.java:597)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
	at io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:795)
	at io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:475)
	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:378)
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base/java.lang.Thread.run(Thread.java:832)

Environment Lettuce version(s): 6.3.0.RELEASE Redis version: Redis 7.1.0

[puneet1992]

@mp911de Is it possible for you to provide some inputs here?

[mp911de]

Without context, a wire trace or a way to reproduce, I'm not able to diagnose what's going on.

[zulker01]

I am facing similar issue . Error message is the same as this https://github.com/redis/lettuce/issues/1796.

I am using several microservices. Each one validates requests through bearer token . Redis and Lettuce is used in User-Service , for saving and fetching renew token for a user . As , this issue is not regular, we get this once in a while, So even I don't know how to regenerate this issue. I am guessing this maybe because of high amount of requests .

Please let me know how to solve this

[puneet1992]

@mp911de We are using Redis pubsub (aws elasticate nodes with cluster mode disabled) for publishing/subscribing. now we are trying to move to the cluster mode enabled one to achieve default autoscaling provided by AWS. the cluster is going into a modifying state we are getting the above errors. currently, i'm using lettuce 6.3.0 RELEASE for this testing.

[mp911de]

Please let me know how to solve this

https://github.com/lettuce-io/lettuce-core/issues/2585#issuecomment-1884374064

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