Werk #15647: Don't Overwrite Existing diskspace.log

Component	Site management
Title	Don't Overwrite Existing diskspace.log
Date	Nov 28, 2023
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.3.0b1 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT 2.2.0p17 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT 2.1.0p38 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT

Previously, the diskspace cronjob overwrote the $OMD_ROOT/var/log/diskspace.log on every run. This is not necessary, since the file is automatically logrotated.

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