Werk #19064: Log rotation for internal services

Component

Core & setup

Title

Log rotation for internal services

Date

Feb 9, 2026

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.5.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.4.0p22 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

When logrotate rotated log files still used by internal services (e.g. the automation-helper), these services continued to write log messages to the old file. Effectively, this left the new file empty.

With this change, the services reopen the log file and will write to the new log file.

There is no manual action required to benefit from this fix.

To the list of all Werks