I have a Go application which uses a Postgres database (9.6). The funny thing is that on some databases establishing the connection takes longer.
There is one server the application is running on and a dedicated database server.
I have 2 databases:
- very small, some kb of data. Connection takes ~1ms
- Still very small, maybe 10 times as large as the first one. Connection takes ~20ms
This is reproductible all the time. I hunted it down to the Dial function in the net package.
Second funny thing: This happens only on a particular couple of servers which are in the same network as the database server.
I could not find anything about this problem. Does someone have information about this behavior?
