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b_kodan_313047's avatar
b_kodan_313047
Icon for Nimbostratus rankNimbostratus
Mar 08, 2017

tcp/http monitor

What is the differnece between tcp(applied on http pool) and http monitor. I thinks both cases, threway handshake is happening and monitor checks whether or not port 80 is opened. What is the usecas...
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Kai_Wilke's avatar
Kai_Wilke
Icon for MVP rankMVP
Mar 08, 2017

Hi b.kodan,

 

The TCP monitor just tries to establish a TCP connection to the individual pool members. If the 3-way handshake completes the monitor will be marked as "successful".

 

The HTTP monitor will also establish a TCP connection to the individual pool members. And right after send an additinall HTTP-Request over TCP-connection. If the monitor receives a HTTP-Response (whatever the response will look like) the the monitor will be marked as "successful".

 

Note: The recommended approach is to use a tailordered HTTP-Monitor for HTTP-Pools. on this way you can define the exact HTTP-Request matching your application logic and the expected HTTP-Response from your "healthy" application (e.g. 200 OK, certain HTML-contents, etc.).

 

Cheers, Kai