Werk #13515: Fix possible LockNotOwnedError if data is queried from redis

Component

User interface

Title

Fix possible LockNotOwnedError if data is queried from redis

Date

Jan 12, 2022

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.1.0b1	Checkmk Community, Checkmk Pro, Checkmk Ultimate MT
2.0.0p19	Checkmk Community, Checkmk Pro, Checkmk Ultimate MT

If a query to redis took to long, the following error could occur in ~/var/log/web.log:

"redis.exceptions.LockNotOwnedError: Cannot release a lock that's no longer owned".

This could have happened if you e.g. filtered for host labels in a view.