Skip to content

cc.arduino.cli.commands.v1.ArduinoCoreService.Init hangs if Monitor is running #2719

New issue
New issue
Closed
Bug
#2728
Closed
cc.arduino.cli.commands.v1.ArduinoCoreService.Init hangs if Monitor is running#2719
Bug
#2728
Assignees
cmaglie
Labels
conclusion: resolvedIssue was resolvedtopic: codeRelated to content of the project itselftopic: gRPCRelated to the gRPC interfacetype: imperfectionPerceived defect in any part of project
Milestone
Arduino CLI v1.1.0
@per1234

Description

@per1234
per1234
opened on Oct 6, 2024 · edited by per1234
Contributor

Describe the problem

A client might make additional cc.arduino.cli.commands.v1.ArduinoCoreService.Init requests.

For example, Arduino IDE periodically (and on demand) performs the following sequence:

  1. Update package and/or library index
  2. Initialize gRPC client instance

Arduino IDE also makes an Init request after installing/updating a platform or library.

🐛 If there is a running cc.arduino.cli.commands.v1.ArduinoCoreService.Monitor process, the Init request hangs.

To reproduce

Equipment

  • Any board or other device that will produce a serial port on your computer.

Demo

  1. Open a terminal.
  2. Start the Arduino CLI gRPC daemon: 
    $ arduino-cli version

arduino-cli  Version: git-snapshot Commit: 863c1ec36 Date: 2024-10-06T06:54:36Z

$ arduino-cli daemon

Daemon is now listening on 127.0.0.1:50051
{"IP":"127.0.0.1","Port":"50051"}
  3. Open another terminal.
  4. Run the following grpcurl command in the new terminal to create a gRPC client instance: 
    $ grpcurl \
  -plaintext \
  -import-path ./rpc \
  -proto cc/arduino/cli/commands/v1/commands.proto \
  127.0.0.1:50051 \
  cc.arduino.cli.commands.v1.ArduinoCoreService.Create

{
  "instance": {
    "id": 1
  }
}
  5. Run the following command to initialize the instance: 
    $ grpcurl \
  -plaintext \
  -import-path ./rpc \
  -proto cc/arduino/cli/commands/v1/commands.proto \
  -d '{"instance": {"id": 1}}' \
  127.0.0.1:50051 \
  cc.arduino.cli.commands.v1.ArduinoCoreService.Init
  6. Run the following command to start a Monitor request: 
    $ grpcurl \
  -plaintext \
  -import-path ./rpc \
  -proto cc/arduino/cli/commands/v1/commands.proto \
  -d @ \
  127.0.0.1:50051 \
  cc.arduino.cli.commands.v1.ArduinoCoreService.Monitor
  7. Send the request data to open the available serial port:
    ❗ Adjust the value of open_request.port.address as is appropriate for the port on your computer. 
    {
  "open_request": {
    "instance": { "id": 1 },
    "port": { "address": "COM42", "protocol": "serial" }
  }
}
  8. Open another terminal.
  9. Run the following command in the new terminal to reinitialize the gRPC client instance: 
    $ grpcurl \
  -plaintext \
  -import-path ./rpc \
  -proto cc/arduino/cli/commands/v1/commands.proto \
  -d '{"instance": {"id": 1}}' \
  127.0.0.1:50051 \
  cc.arduino.cli.commands.v1.ArduinoCoreService.Init

🐛 The reinitialization hangs.

Expected behavior

cc.arduino.cli.commands.v1.ArduinoCoreService.Init does not hang under any conditions.

Arduino CLI version

863c1ec

Operating system

  • Linux
  • macOS
  • Windows

Operating system version

  • Ubuntu 24.04
  • macOS Sonoma
  • Windows 11

Additional context

I bisected the regression to bb815cf / #2565 (the fault does not occur when using the build from the previous commit 917dcc5).

Originally reported at #2347 (comment) (note the original issue report #2347 was from long before the time of the regression, so is different from the Monitor-specific issue tracked here even if the symptoms are somewhat similar).

Additional reports

Issue checklist

  • I searched for previous reports in the issue tracker
    I verified the problem still occurs when using the nightly build
    My report contains all necessary details

Activity

per1234
added
topic: codeRelated to content of the project itself
type: imperfectionPerceived defect in any part of project
topic: gRPCRelated to the gRPC interface
on Oct 6, 2024
per1234
mentioned this on Oct 6, 2024
frankcohen

frankcohen commented on Oct 9, 2024

@frankcohen
frankcohen
on Oct 9, 2024 · Hidden as duplicate
cmaglie
mentioned this on Oct 10, 2024
cmaglie
closed this as completedin #2728on Oct 11, 2024
cmaglie
added
conclusion: resolvedIssue was resolved
on Oct 11, 2024
cmaglie
self-assigned this
on Oct 11, 2024
cmaglie
added this to the Arduino CLI v1.1.0 milestone on Oct 11, 2024
per1234
mentioned this in 2 issues on Oct 17, 2024
per1234
mentioned this on Oct 31, 2024
kittaakos
mentioned this on Nov 14, 2024
per1234
mentioned this on Nov 15, 2024
per1234
mentioned this on Dec 4, 2024
daxliniere

daxliniere commented on Feb 22, 2025

@daxliniere
daxliniere
on Feb 22, 2025

This is not resolved. I am using v2.3.4 on Windows 10 and this is still a problem.

arduino
locked as resolved and limited conversation to collaborators on Jun 21, 2025
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Metadata

Metadata

Assignees

Labels

conclusion: resolvedIssue was resolvedtopic: codeRelated to content of the project itselftopic: gRPCRelated to the gRPC interfacetype: imperfectionPerceived defect in any part of project

Type

Bug

Projects

No projects

Milestone

Relationships

None yet

    Development

    Participants

    @cmaglie@frankcohen@daxliniere@per1234

    Issue actions
      `cc.arduino.cli.commands.v1.ArduinoCoreService.Init` hangs if `Monitor` is running · Issue #2719 · arduino/arduino-cli