Werk #6097: Raw Edition: Fix possible "(null)" output of Check_MK services

Component	Core & setup
Title	Raw Edition: Fix possible "(null)" output of Check_MK services
Date	May 17, 2018
Level	Prominent Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.6.0b1 Not yet released Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 1.6.0b1 Not yet released Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 1.6.0b1 Not yet released Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 1.6.0b1 Not yet released Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 1.6.0b1 Not yet released Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 1.6.0b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 1.5.0b5 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

The Check_MK service of multiple hosts may terminate without proper error message resulting just in status output "(null)" in specific situations.

This happened when the precompiled host check files (var/check_mk/precompiled/[host]) were executed by Nagios using the system wide Python interpreter instead of the site specific interpreter.

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