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Failing health checks - Timeout waiting for connection

 

Information

 

Summary:

Real Server is failing health checks, found the entry to support this in the log files, trying to understand exactly what it means.  

Environment:

Product: LoadMaster

Version: Any

Platform: Any

Application: Any

Question/Problem Description:

What does "Timeout waiting for connection" mean?

Steps to Reproduce:  
Error Message: Failing health checks - Timeout waiting for connection
Defect Number:  
Enhancement Number:  
Cause:
  • This message appears in your logs when a TCP-based health check is in use.
  • You can view the logs by going to: System Configuration > Logging Options > System Log Files >The system message file and warning message file will both show entries for when a Real Server fails it's health check
  • This indicates that the TCP connection is unable to form between the LoadMaster and the server.
Resolution:
  • Environmental investigation is needed.
  • Typical problems include network congestion or a static route on the server.
  • Could be helpful to take a packet capture and verify the LoadMaster is getting responses from the Server to see if anything is blocking or filtering the packets
Workaround:  
Notes: https://support.kemptechnologies.com/hc/en-us/articles/211215546-Health-Checking

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