Tatsuo Ishii <ishii(at)postgresql(dot)org> writes:
> I am struggling to understand what following phrase says:
> tcp_keepalives_idle (integer)
> Specifies the number of seconds before sending a keepalive packet
> on an otherwise idle connection.
It means "the connection is idle except for keepalive packets".
We could perhaps just drop the word "otherwise", if people find
it confusing.
> What I am not sure is the meaning of "otherwise". Can I safely replace
> it to:
> Specifies the number of seconds before sending a keepalive packet
> on an other side of idle connection.
No, that's not a good fix.
regards, tom lane