Forum Discussion
bjett_224741
Altostratus
AltostratusLtm Pool Monitor Down Clarification "Tcp read:" vs "Unable to Connect;"
Had simple http monitor fail on multiple servers the error on one server was different from the other 5: The difference is minor the one server says:
"Tcp read: Connection refused; Unable to connect; No successful responses received before deadline."
VS the other 5 say:
"Unable to connect; No successful responses received before deadline."
I have a theory on what the difference is but cannot find any official documentation on it. Can anyone help clarify.
I would assume a RST is received from member after handshake completed, and after request sent to member.
IheartF5_45022Nacreous
I would assume a RST is received from member after handshake completed, and after request sent to member.
bjett_224741That is kind of what I thought. The issue we were having that day was high load and Max Workers on apache. All the servers that had this except one had the: "Unable to connect; No successful responses received before deadline." which is the most common one. The monitor down messages from the one server were all "Tcp read: Connection refused; Unable to connect; No successful responses received before deadline." and I assumed it was a monitor timeout failure after the handshake.