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Runner crash on first request on Linux (and maybe others) #42

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WinPlay02 opened this issue Jan 25, 2024 · 6 comments · Fixed by #43
Closed

Runner crash on first request on Linux (and maybe others) #42

WinPlay02 opened this issue Jan 25, 2024 · 6 comments · Fixed by #43
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@WinPlay02
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bug 🪲 Something isn't working released Included in a release

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@WinPlay02
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WinPlay02 commented Jan 25, 2024 •
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Describe the bug

The runner crashes on first request (usually program message)

To Reproduce

  1. Open VSCode with Safe-DS extension
  2. Click on Run button for any Safe-DS source file

Expected behavior

The runner executes the program

Screenshots (optional)

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Additional Context (optional)

I would propose to replace the (legacy) flask stack with a quart (successor in a way of flask) stack that does not require monkey patching python internals. This has the added benefit to allow async python functions and in turn being possibly more efficient.

Furthermore, a migration to the socket.io protocol is still possible although not as easy as changing the dependency in flask.
@WinPlay02 WinPlay02 added the bug 🪲 Something isn't working label Jan 25, 2024
@WinPlay02 WinPlay02 self-assigned this Jan 25, 2024
@lars-reimann
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Is this related to the issue reported by @SmiteDeluxe?

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lars-reimann commented Jan 25, 2024 •
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Websockets seem to be supported out-of-the-box by quart. How could socket.io be integrated (just spto ensure we don't lose options by migrating)? I guess python-socketio could be used for this purpose?

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litestar might also be a lightweight ASGI framework to consider.

@WinPlay02
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Is this related to the issue reported by @SmiteDeluxe?

This is the same issue

Websockets seem to be supported out-of-the-box by quart. How could socket.io be integrated (just see to ensure we don't lose options by migrating? I guess python-socketio could be used for this purpose?

The python-socketio library is the way to go, exactly. python-socketio received support for ASGI a long time ago.

litestar might also be a lightweight ASGI framework to consider.

I chose quart as it is the successor to flask and it seemed the most lightweight. I additionally also considered fastapi.

@WinPlay02
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Also see the fix-linux-startup-error branch, for a preview.

Furthermore, a migration to the socket.io protocol is still possible although not as easy as changing the dependency in flask.

The potential future usage of was socket.io was considered in the choice of quart.

@WinPlay02 WinPlay02 mentioned this issue Jan 25, 2024
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lars-reimann pushed a commit that referenced this issue Jan 26, 2024
@WinPlay02 @megalinter-bot
feat: Replace flask with quart (#43)
5520b68 
Closes #42 

### Summary of Changes

- replaces flask with quart
- rewrite some tests
- added test against crashing
- solution should be more scalable as it replaces wsgi with asgi

---------

Co-authored-by: megalinter-bot <129584137+megalinter-bot@users.noreply.github.com>
lars-reimann pushed a commit that referenced this issue Jan 26, 2024
@semantic-release-bot
chore(release): 0.5.0 [skip ci]
46630de 
## [0.5.0](v0.4.0...v0.5.0) (2024-01-26)

### Features

* added json serializer that encodes tables and images ([#29](#29)) ([054cca4](054cca4)), closes [#20](#20)
* Memoization ([#38](#38)) ([2a26b48](2a26b48))
* Replace flask with quart ([#43](#43)) ([5520b68](5520b68)), closes [#42](#42)
* support placeholder queries that only request a subset of data ([#39](#39)) ([dae57dc](dae57dc))
* update to safe-ds 0.17.1 + server refactor ([#37](#37)) ([1bcad07](1bcad07))

### Bug Fixes

* allow multiple connections to work with the runner ([#31](#31)) ([64685a3](64685a3))
@lars-reimann
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🎉 This issue has been resolved in version 0.5.0 🎉

The release is available on:

Your semantic-release bot 📦🚀

@lars-reimann lars-reimann added the released Included in a release label Jan 26, 2024
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feat: Replace flask with quart Safe-DS/Runner
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