Config readMode from SLAVE but redirect to MASTER

Expected behavior

• The Lua script executes on the Slave node

Actual behavior

• The Lua script executes on the Master node

Steps to reproduce or test case

Here is the Java code:

redissonClient
          .getScript()
          .evalSha(
              RScript.Mode.READ_ONLY,
              "<sha1-hash>",
              RScript.ReturnType.MULTI,
              getKeys(),
              getArgs());

Here is the Lua script

local id = redis.call("CLUSTER", "MYID")

redis.log(redis.LOG_NOTICE, "I'm get master account " .. id)
return redis.call('hmget', KEYS[1], unpack(ARGV))

After executing Java code and the Redis’s log like bellow

We can see that the Lua script is executed on the master node (127.0.0.1:7001) instead of the slave node (127.0.0.1:7005), but I have already config the readMode to SLAVE & pass the RScript.Mode.READ_ONLY config when evalSha.

Please help me correct if I’m wrong, thanks!

Redis version

v6.2.0

Redisson version

v3.16.2

Redisson configuration

  redissonConfig:
    clusterServersConfig:
      idleConnectionTimeout: 10000
      pingTimeout: 1000
      connectTimeout: 3000
      timeout: 5000
      retryAttempts: 2
      retryInterval: 100
      failedSlaveReconnectionInterval: 3000
      failedSlaveCheckInterval: 60000
      password: null
      subscriptionsPerConnection: 5
      clientName: null
      subscriptionConnectionMinimumIdleSize: 1
      subscriptionConnectionPoolSize: 10
      slaveConnectionMinimumIdleSize: 1
      slaveConnectionPoolSize: 1
      masterConnectionMinimumIdleSize: 1
      masterConnectionPoolSize: 4
      readMode: "SLAVE"
      subscriptionMode: "MASTER"
      scanInterval: 1000
      pingConnectionInterval: 1000
      keepAlive: true
      tcpNoDelay: true
      nodeAddresses:
        - "redis://127.0.0.1:7000"
        - "redis://127.0.0.1:7001"
        - "redis://127.0.0.1:7002"
        - "redis://127.0.0.1:7003"
        - "redis://127.0.0.1:7004"
        - "redis://127.0.0.1:7005"
    threads: 128
    nettyThreads: 128

[mrniko]

Done

[mircea-pop]

In my case, I’m using Redisson 3.16.7 with Redis 6.0.5 (on ElastiCache) with Cluster mode OFF and this works as expected: the code is executed on replicas:

script.evalSha(RScript.Mode.READ_ONLY,
                                  sha,
                                  RScript.ReturnType.VALUE)

Now I’m trying to update to Redisson 16.7.5 and as soon as I do it, all the LUA executions are run on master only, which blocks me to update because the master gets overloaded.

@mrniko is there anything in particular that got updated around this topic between Redisson 3.16.7 and 16.7.5?
Seems the READ_ONLY mode is working fine on Redisson 3.16.7 when Redis 6.0.5 is used with cluster mode OFF and having only read replicas.