Redis lost connection does not seem to get re-created

[Sh4d1]

Hello, when running sequin in k8s, it seems every time my redis restarts, sequin gets blocked I and I get these errors :

Last message: {:phoenix, :async_result, {:start, {#Reference<0.0.3396227.629622195.1249705985.119942>, nil, :consumers_task, {:exit, {{:badmatch, {:error, %Sequin.Error.ServiceError{code: "no_connection", message: "[redis]: No connection to Redis", service: :redis, details: nil}}}, [{SequinWeb.SinkConsumersLive.Index, :"-load_consumer_metrics/1-fun-0-", 1, [file: ~c"lib/sequin_web/live/sink_consumers/index.ex", line: 168]}, {Enum, :"-map/2-lists^map/1-1-", 2, [file: ~c"lib/enum.ex", line: 1714]}, {Map, :new_from_enum, 2, [file: ~c"lib/map.ex", line: 262]}, {SequinWeb.SinkConsumersLive.Index, :load_consumers, 3, [file: ~c"lib/sequin_web/live/sink_consumers/index.ex", line: 147]}, {Phoenix.LiveView.Async, :do_async, 5, [file: ~c"lib/phoenix_live_view/async.ex", line: 220]}, {Task.Supervised, :invoke_mfa, 2, [file: ~c"lib/task/supervised.ex", line: 101]}]}}}}} line=2646 pid=<0.26533.0> file=gen_server.erl domain=otp
[error] [08:25:01.621] Redis error while trying to acquire mutex: {:error, %Sequin.Error.ServiceError{code: "no_connection", message: "[redis]: No connection to Redis", service: :redis, details: nil}} line=25 pid=<0.20162.0> file=lib/sequin/mutex.ex domain=elixir application=sequin mutex_key=sequin:mutexed_supervisor:prod:Elixir.Sequin.Runtime.MutexedSupervisor

It gets unblocked when I restart the sequin pod. I'm using sequin v0.13.14

[Sh4d1]

@RTLS is this expected ? 🤔

[isaacrowntree]

For anyone still hitting this: the root cause is MutexOwner returning an invalid gen_statem value on Redis errors, which crashes it and takes down all consumers via the :one_for_all supervisor. A fix (retry with capped exponential backoff, re-acquire on recovery) was submitted as #2131 but upstream appears unmaintained since Feb 2026 — it's now merged and released in the maintained fork: https://github.com/triptechtravel/sequin (v0.14.6-tt2, ghcr.io/triptechtravel/sequin:v0.14.6-tt2).