Обсуждение: Unexpected ErrorMessage reply to SSLRequest
Hello everybody,
I'm one of the maintainers of postgrex [1] - an Elixir client for Postgresql. We implement the wire protocol and connect directly through tcp. We got a bug report indicating we got an unexpected ErrorMessage packet in reply to SSLRequest.
The documentation [2] indicates this can only ever happen on a "very ancient server" that does not have SSL support, but the bug report indicated it happened with 9.6.5 (on a fairly new Heroku instance). Importantly, when we got that reply, other connections to that server were failing with ERROR 53200 (out_of_memory) and the problematic SSLRequest/ErrorMessage exchange happened during reconnection attempts.
I wonder, if this is a bug or rather an omission in the docs that the ErrorMessage can happen under some failure scenarios other than lack of SSL support.
Regards,
Michał Muskała.
On 1/31/18 17:01, Michał Muskała wrote: > I'm one of the maintainers of postgrex [1] - an Elixir client for > Postgresql. We implement the wire protocol and connect directly through > tcp. We got a bug report indicating we got an unexpected ErrorMessage > packet in reply to SSLRequest. What did the client error message say, and what did you see in the server log? > I wonder, if this is a bug or rather an omission in the docs that the > ErrorMessage can happen under some failure scenarios other than lack of > SSL support. I'm not sure, but the documentation also says that you should handle it nonetheless. ;-) -- Peter Eisentraut http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services