Werk #15542: Crash MSSQL backup rendering negative timespans

Component

Checks & agents

Title

Crash MSSQL backup rendering negative timespans

Date

Mar 28, 2023

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.3.0b1	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.2.0b2	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

When the hosts' time is running ahead of the servers time the time since last backup can be negative.

In this case the MSSQL backup check plugin would crash showing the error message:

ValueError (Cannot render negative timespan)

Now the check plugin creates a warning result rather than crashing.