[query-frontend] Unable to connect to Redis(elasticache) 6.2.6

[beramod]

Thanos, Prometheus and Golang version used: Thanos 0.34.1, AWS Elasticache 6.2.6

Object Storage Provider: AWS

What happened: I'm trying to configure cache (Redis) for Query-Frontend. but I'm encountering an "error: creating redis client: context deadline exceeded", and the connection fails. I've configured the same settings for the index and bucket cache, and the cache connection for the store component is working fine.

What you expected to happen: Query-Frontend can connect to Redis

How to reproduce it (as minimally and precisely as possible):

• Deploy query frontend version 0.34.1 with the following cache config:

type: REDIS
config:
  addr: "url:6379"
  username: ""
  password: "$(PASSWORD)"
  db: 0
  dial_timeout: 10s
  read_timeout: 3s
  write_timeout: 3s
  max_get_multi_concurrency: 100
  get_multi_batch_size: 100
  max_set_multi_concurrency: 100
  set_multi_batch_size: 100
  tls_enabled: true
  tls_config:
    insecure_skip_verify: true
  cache_size: 0
  max_async_buffer_size: 10000
  max_async_concurrency: 20
  expiration: 1h

Full logs to relevant components:

Logs

{"caller":"main.go:67","level":"debug","msg":"maxprocs: Updating GOMAXPROCS=[1]: using minimum allowed GOMAXPROCS","ts":"2024-08-28T09:31:42.966494789Z"}
{"caller":"main.go:135","err":"creating redis client: context deadline exceeded\ngit.luolix.top/thanos-io/thanos/internal/cortex/chunk/cache.New\n\t/bitnami/blacksmith-sandox/thanos-0.34.1/src/github.com/thanos-io/thanos/internal/cortex/chunk/cache/cache.go:108\ngit.luolix.top/thanos-io/thanos/internal/cortex/querier/queryrange.NewResultsCacheMiddleware\n\t/bitnami/blacksmith-sandox/thanos-0.34.1/src/github.com/thanos-io/thanos/internal/cortex/querier/queryrange/results_cache.go:187\ngit.luolix.top/thanos-io/thanos/pkg/queryfrontend.newQueryRangeTripperware\n\t/bitnami/blacksmith-sandox/thanos-0.34.1/src/github.com/thanos-io/thanos/pkg/queryfrontend/roundtrip.go:208\ngit.luolix.top/thanos-io/thanos/pkg/queryfrontend.NewTripperware\n\t/bitnami/blacksmith-sandox/thanos-0.34.1/src/github.com/thanos-io/thanos/pkg/queryfrontend/roundtrip.go:60\nmain.runQueryFrontend\n\t/bitnami/blacksmith-sandox/thanos-0.34.1/src/github.com/thanos-io/thanos/cmd/thanos/query_frontend.go:299\nmain.registerQueryFrontend.func1\n\t/bitnami/blacksmith-sandox/thanos-0.34.1/src/github.com/thanos-io/thanos/cmd/thanos/query_frontend.go:172\nmain.main\n\t/bitnami/blacksmith-sandox/thanos-0.34.1/src/github.com/thanos-io/thanos/cmd/thanos/main.go:133\nruntime.main\n\t/opt/bitnami/go/src/runtime/proc.go:267\nruntime.goexit\n\t/opt/bitnami/go/src/runtime/asm_amd64.s:1650\ncreate results cache middleware\ngit.luolix.top/thanos-io/thanos/pkg/queryfrontend.newQueryRangeTripperware\n\t/bitnami/blacksmith-sandox/thanos-0.34.1/src/github.com/thanos-io/thanos/pkg/queryfrontend/roundtrip.go:220\ngit.luolix.top/thanos-io/thanos/pkg/queryfrontend.NewTripperware\n\t/bitnami/blacksmith-sandox/thanos-0.34.1/src/github.com/thanos-io/thanos/pkg/queryfrontend/roundtrip.go:60\nmain.runQueryFrontend\n\t/bitnami/blacksmith-sandox/thanos-0.34.1/src/github.com/thanos-io/thanos/cmd/thanos/query_frontend.go:299\nmain.registerQueryFrontend.func1\n\t/bitnami/blacksmith-sandox/thanos-0.34.1/src/github.com/thanos-io/thanos/cmd/thanos/query_frontend.go:172\nmain.main\n\
t/bitnami/blacksmith-sandox/thanos-0.34.1/src/github.com/thanos-io/thanos/cmd/thanos/main.go:133\nruntime.main\n\t/opt/bitnami/go/src/runtime/proc.go:267\nruntime.goexit\n\t/opt/bitnami/go/src/runtime/asm_amd64.s:1650\nsetup tripperwares\nmain.runQueryFrontend\n\t/bitnami/blacksmith-sandox/thanos-0.34.1/src/github.com/thanos-io/thanos/cmd/thanos/query_frontend.go:301\nmain.registerQueryFrontend.func1\n\t/bitnami/blacksmith-sandox/thanos-0.34.1/src/github.com/thanos-io/thanos/cmd/thanos/query_frontend.go:172\nmain.main\n\t/bitnami/blacksmith-sandox/thanos-0.34.1/src/github.com/thanos-io/thanos/cmd/thanos/main.go:133\nruntime.main\n\t/opt/bitnami/go/src/runtime/proc.go:267\nruntime.goexit\n\t/opt/bitnami/go/src/runtime/asm_amd64.s:1650\npreparing query-frontend command failed\nmain.main\n\t/bitnami/blacksmith-sandox/thanos-0.34.1/src/github.com/thanos-io/thanos/cmd/thanos/main.go:135\nruntime.main\n\t/opt/bitnami/go/src/runtime/proc.go:267\nruntime.goexit\n\t/opt/bitnami/go/src/runtime/asm_amd64.s:1650","level":"error","ts":"2024-08-28T09:31:45.973964778Z"}

Anything else we need to know:
I found a similar issue in the link below(#6094)