Werk #16240: Crash on missing thread count on AIX

Component Checks & agents
Title Crash on missing thread count on AIX
Date Feb 28, 2024
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.4.0b1
Not yet released
Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.3.0b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.2.0p26 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.1.0p43 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

You're affected if you want to monitor your CPU and the cpu check crashes with something like:

  File "/omd/sites/YOURSITE/lib/python3/cmk/base/plugins/agent_based/cpu.py", line 48, in parse_cpu
    count=int(row[3].split("/")[1]),
ValueError (invalid literal for int() with base 10: '')

We saw this happening on AIX system when the ps information cannot be obtained due to low memory. The parsing is now more resilient against such missing data.

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