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Issues with Flowmon GUI due to stuck PHP processes





The article describes the cause of various issues with the loading of Flowmon GUI parts due to stuck php processes.


Product: Flowmon, Flowmon ADS

Version: FOS 12.2.6 and older

Platform: Any

Question/Problem Description:

Why the Flowmon page is still Loading after login?
Why the events based on the remote MISP blacklist are not appearing in ADS analysis?
Why the Flowmon GUI is loading for a long time?
GUI unavailable (ERROR 500).

Steps to Reproduce:  
Error Message:  
Defect Number: FLMON-7206
Enhancement Number:  
Cause: It is a bug which is affecting appliances with FOS 12.2.6. and ADS plugin. In rare cases, a high number of PHP processes called by ADS may stuck due to Cli:BuildPendoAccountDataCache.
Resolution: list the number of php processes by command:
ps aux | grep -c '[p]hp'
If the number of php processes is 40+ and also you are facing with mentioned issues, reboot the appliance and perform the upgrade to the latest stable FOS version.

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