Werk #6780: Fixed random alert / notify helper crashes on some platforms

Component

Core & setup

Title

Fixed random alert / notify helper crashes on some platforms

Date

Oct 11, 2018

Level

Prominent Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

1.6.0b1	Checkmk Enterprise (CEE), Checkmk MSP (CME)
1.5.0p6	Checkmk Enterprise (CEE), Checkmk MSP (CME)

The alert and notify helpers of the Microcore could crash "randomly" after hours of operation.

The crash was visible in form of "ImportError: cannot import name" messages in the var/log/notify.log or var/log/alert.log.

Due to another problem, which will also be fixed soon, the crash of the helper process made the Microcore process crash.

As far as we know this happened only on Debian Jessie, CentOS/RedHat 7 and SLES12 SP1/SP2.

CMK-1085