Skip to content

INSTA-69727 - Fysom improvement for multi-threaded operations #832

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom
Open
CagriYonca wants to merge 1 commit into
base: main
Choose a base branch
from
Open

INSTA-69727 - Fysom improvement for multi-threaded operations #832

CagriYonca wants to merge 1 commit into from

Conversation

@CagriYonca
Copy link
Contributor

@CagriYonca CagriYonca commented Jan 7, 2026

  • The state machine was not compatible with multi-threads by default. Every fork was changing the state of the fysom so that Fysom was falling into fysom.FysomError: event announce inappropriate in current state announced error. After adding a thread-safe lock mechanism, it works and propagates spans as expected.
  • Verified that the instrumentation works even without hooks.

@CagriYonca
fix: Adapted Fysom and gunicorn hook to multi-threaded/multi-worker i…
6b52932 
…nstrumentation

Signed-off-by: Cagri Yonca <cagri@ibm.com>
@CagriYonca CagriYonca self-assigned this Jan 7, 2026
@CagriYonca CagriYonca requested a review from a team as a code owner January 7, 2026 09:57
@CagriYonca CagriYonca added the bug label Jan 7, 2026
@CagriYonca CagriYonca changed the title Gunicorn INSTA-69727 - Fysom improvement for multi-threaded operations Jan 7, 2026
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Reviewers

No reviews

Assignees

@CagriYonca CagriYonca

Labels

bug

Projects

None yet

Milestone

No milestone

Development

Successfully merging this pull request may close these issues.

2 participants

@CagriYonca