Bug WikiAsync & Event HandlingMissed event
1 example

Missed event

Expected event not captured or handled properly.

[ FAQ1 ]

What is a missed event?

A missed event happens when an application or UI component doesn't respond to an event, such as a user interaction, state change, or message, due to the event occurring before its listener or handler is attached. This situation commonly arises from asynchronous timing issues, race conditions, or incorrect ordering of code execution, especially in reactive or event-driven applications. Missed events result in unexpected behaviors, UI inconsistencies, and functional problems, leading to poor user experience and application reliability issues.
[ FAQ2 ]

How to fix missed event bugs

A missed event happens when an application or UI component doesn't respond to an event, such as a user interaction, state change, or message, due to the event occurring before its listener or handler is attached. This situation commonly arises from asynchronous timing issues, race conditions, or incorrect ordering of code execution, especially in reactive or event-driven applications. Missed events result in unexpected behaviors, UI inconsistencies, and functional problems, leading to poor user experience and application reliability issues.
posthog/posthog·#31827
diff block
@shared_task(ignore_result=True)
def capture_workspace_rows_synced_by_team(team_id: int) -> None:
- ph_client = get_ph_client()
team = Team.objects.get(pk=team_id)
now = datetime.datetime.now(datetime.UTC)
begin = team.external_data_workspace_last_synced_at or DEFAULT_DATE_TIME
team.external_data_workspace_last_synced_at = now
Greptile
greptile
logic: setting external_data_workspace_last_synced_at to 'now' before processing jobs could lead to missed events if the task fails
suggested fix
+ # Initialize last_synced_at after successful processing