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Incompatible with LettuceClient 6.x - Unsupported operation 'hello'

See original GitHub issue

Hi,

We’re attempting to upgrade from v5.3.3.RELEASE of the lettuce redis client to v6.0.1.RELEASE.

When running unit tests with jedis-mock, we have the following exception:

    11:03:02.189 [lettuce-nioEventLoop-40-1] DEBUG io.lettuce.core.AbstractRedisClient - Connecting to Redis at localhost:50385, initialization: localhost:50385
    java.util.concurrent.CompletionException: io.lettuce.core.RedisCommandExecutionException: Unsupported operation 'hello'
        at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
        at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
        at java.util.concurrent.CompletableFuture.uniCompose(CompletableFuture.java:943)
        at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:926)
        at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
        at java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1977)
        at io.lettuce.core.RedisHandshake.lambda$tryHandshakeResp3$1(RedisHandshake.java:105)
        at java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760)
        at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:736)
        at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
        at java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1977)
        at io.lettuce.core.protocol.AsyncCommand.doCompleteExceptionally(AsyncCommand.java:139)
        at io.lettuce.core.protocol.AsyncCommand.completeResult(AsyncCommand.java:120)
        at io.lettuce.core.protocol.AsyncCommand.complete(AsyncCommand.java:111)
        at io.lettuce.core.protocol.CommandHandler.complete(CommandHandler.java:704)
        at io.lettuce.core.protocol.CommandHandler.decode(CommandHandler.java:639)
        at io.lettuce.core.protocol.CommandHandler.channelRead(CommandHandler.java:560)

Per readme, submitting an issue. Thanks!

Issue Analytics

State:
Created 3 years ago
Reactions:2
Comments:7

Top GitHub Comments

2reactions

inponomarevcommented, May 8, 2021

Hi, I implemented hello support in a way that it always returns RESP2 as a supported protocol. Thus it is now possible to use Lettuce 6.x without any additional configuration. The fix will be included in 0.1.19 release

0reactions

parmar049commented, Jul 13, 2021

Thanks @inponomarev It get resolved, looks like it was not updating to latest version 0.1.20, had to delete manually from .m2 folder and clean it again. its fixed now.

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