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Werk #10167: Fix excessive memory consumption on systems using apache 2.2 (e.g. RedHat 6)

ComponentGUI
TitleFix excessive memory consumption on systems using apache 2.2 (e.g. RedHat 6)
Date2019-09-20 12:13:02
Checkmk EditionCheckmk Raw Edition (CRE)
Checkmk Version1.6.0,1.7.0i1
LevelProminent Change
ClassBug Fix
CompatibilityCompatible - no manual interaction needed

The site apache was consuming a lot more memory than intended. The memory usage seemed to grow with every request to the apache 2.2 process. This was caused by a bad mod_wsgi configuration. This config made each apache process create multiple python interpreters within a single process, one for each GUI page (views.py, ...). Apache 2.4 based systems were not affected by this.