No subscribers to send message

[judell]

I'm seeing this intermittently in both WSL2 and vanilla Ubuntu, running flowpipe both in server and local modes.

2023-11-27T10:46:05.707-0800    INFO    No subscribers to send message  {"pubsub_uuid": "ePLGahbJ3xweUAB5ARu4q3", "message_uuid": "1178aaa2-b122-4098-9de2-6ff800ebbdf9", "topic": "event.PipelineQueue"}
[Execution] exec_clie7rann1ts03r7q1k0

It happens even on the simplest pipeline, e.g.

mod "local" {
  title = "fptest"
}

pipeline "hello" {

  step "transform" "hello_out" {
    value = "ok"
  }

  output "hello_out" {
    value = step.transform.hello_out
  }

}

[judell]

Sounds similar to https://github.com/turbot/flowpipe/issues/323: a pipeline nondetermistically fails to complete. But @cbruno10 does not see the "No subscribers" message I am seeing on Linux.

[vhadianto]

I believe the issue is caused by Flowpipe trying to run pipelines before Watermill full starts. I've changed the starting sequence in:

https://github.com/turbot/flowpipe/commit/090c69475cd1b9ad40436fb7ddf6658812c17e17 and https://github.com/turbot/flowpipe/commit/090c69475cd1b9ad40436fb7ddf6658812c17e17

[judell]

👏