Werk #3286: Fixing possible logging issues when using datasource programs for monitoring
Component | Core & setup | ||||
Title | Fixing possible logging issues when using datasource programs for monitoring | ||||
Date | Mar 11, 2016 | ||||
Level | Trivial Change | ||||
Class | Bug Fix | ||||
Compatibility | Compatible - no manual interaction needed | ||||
Checkmk versions & editions |
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When calling datasource programs for monitoring they are executed as subprocesses of Check_MK. Check_MK as passing all filedescriptors except stdout and stderr to the subprocess. So if a subprocess was doing something strange with them it could happen that this influenced the handling within Check_MK.
This could, for example, confuse the communication between the CMC and the Check_MK keepalive helper processes.