Werk #16147: Abort CMC on irrecoverable filesystem errors

Component	The Checkmk Micro Core
Title	Abort CMC on irrecoverable filesystem errors
Date	Jan 3, 2024
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.3.0b1 Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME) 2.2.0p18 Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

The errors

• too many files open (EMFILE)
• too many files open in system (ENFILE)
• no buffer space (ENOBUFS)
• not enough memory (ENOMEM)

now exit the core. Correct monitoring cannot be guaranteed when the server is in this state.

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