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## prometheus_memory_utilization_investigation.md

      
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                / prometheus_memory_utilization_investigation.md
            
            
              Last active
              December 29, 2021 08:38
            
              
                Prometheus Memory Usage Investigation
              
          
    To understand the proper memory limits for Prometheus, we first need to observe the memory usage behavior of the deployment.
After the increase in memory, we can clearly see the reported usage doesn't decrease but oscillate around new level.
This is an unexpected behavior, and why the RSS memory is not released after the increase needs to be investigated. Keep in mind that this pattern was initially observed in only one region.
Current configuration:

Version 2.18.1
GoVersion go1.14.2
Prometheus Helm Chart: v11.5.0


## main.py
import logging
import multiprocessing
import time

import mplog

FORMAT = '%(asctime)s - %(processName)s - %(levelname)s - %(message)s'
logging.basicConfig(level=logging.DEBUG, format=FORMAT)
existing_logger = logging.getLogger('x')
	import logging
	import multiprocessing
	import time

	import mplog

	FORMAT = '%(asctime)s - %(processName)s - %(levelname)s - %(message)s'
	logging.basicConfig(level=logging.DEBUG, format=FORMAT)
	existing_logger = logging.getLogger('x')