Function executions fail with cURL error 52 when coinciding with executor maintenance cleanup

Appwrite version: 1.8.0 Executor version: 0.11.4 Function runtime: Python 3.12 SELF-HOSTED

Function executions that occur at the same moment as the executor's hourly maintenance task fail with Internal curl error has occurred within the executor! Error Number: 52.

Evidence:

Executor logs show maintenance and error occurring within the same second:

2026-01-13T12:41:21.526Z Running maintenance task ...
2026-01-13T12:41:21.526Z Maintanance task finished.
2026-01-13T12:41:21.542Z [Error] Internal curl error has occurred within the executor! Error Number: 52
2026-01-13T12:41:26.189Z Successfully removed exc1-...-696484170e82d617cb4a

This pattern repeats every hour at :41:21 for any function scheduled to run at :40. appwrite-worker-functions logs:

2026-01-13T12:41:21.549327647Z [Job] (69663d20b02831.79501694) failed to run.
2026-01-13T12:41:21.549511242Z [Job] (69663d20b02831.79501694) Internal curl error has occurred within the executor! Error Number: 52
2026-01-13T12:41:21.549527872Z [Error] Type: Exception
2026-01-13T12:41:21.549539662Z [Error] Message: Internal curl error has occurred within the executor! Error Number: 52
2026-01-13T12:41:21.549615140Z [Error] File: /usr/src/code/src/Appwrite/Platform/Workers/Functions.php
2026-01-13T12:41:21.549630469Z [Error] Line: 646

Actual behavior:

The maintenance task removes containers without coordination with incoming execution requests, causing a race condition where: Execution request arrives Executor routes to existing container Maintenance simultaneously removes that container cURL gets empty response (error 52)

This function runs every 4 minutes, 15 times an hour, only one out 15 failure, always at the same time: X:40.

Maintenance should not remove containers that have pending or in-flight execution requests so I would like to understand if this is a bug or I am doing something wrong.

Thanks.