Werk #14762: mk_postgres.py: instances not found under Linux for PostgreSQL version >= 13

Component

Checks & agents

Title

mk_postgres.py: instances not found under Linux for PostgreSQL version >= 13

Date

Aug 25, 2022

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.2.0b1	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.1.0p11	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
2.0.0p28	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

This fix only applies when your PostgreSQL server runs under Linux.

The plugin "mk_postgres.py" does not find any instances when PostgreSQL version >= 13 is installed. This has been fixed. If you require this fix, please update the agent plugin "mk_postgres.py" on the relevant host.

The problem was that in this version, the output of the "ps" command does not include the full path to the relevant binaries, and therefore they could not be correctly identified as PostgreSQL processes. For example:

[PID] /usr/bin/postmaster [OPTS] --> [PID] postmaster [OPTS]

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