Werk #5812: Fixed Check_MK check helper crashes related to loading of precompiled checks

Component

Checks & agents

Title

Fixed Check_MK check helper crashes related to loading of precompiled checks

Date

May 17, 2018

Level

Prominent Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

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 latest versions no longer read checks as plain text python files (Werk 6046). The operation which generates the precompilated file was not atomic, so a file could be partially written, while being read by another process. This caused various exceptions in multiple checks.

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