On Sat, Mar 25, 2023 at 12:46:26PM -0700, Amit Gupta via Postfix-users wrote:
> Hi, Is there any reason for smtp_connection_cache_time_limit to be set
> differently than connection_cache_ttl_limit?
No. After all, both have the same default. But also note that the
reason there are two parameters is precisely to discourage anti-social
tinkering with the defaults to raise the lifetime of idle connections to
remote servers.
> It seems like cache TTL would be limited by whichever one of these
> parameters is lower. Is this a correct understanding?
Yes.
> "The Postfix scache(8) server keeps a connection open for only a limited
> time. The time limit is specified with the smtp_connection_cache_time_limit
> and with the connection_cache_ttl_limit configuration parameters. This
> prevents anti-social behavior."
The intent is to discourage changing these, so a better answer to your
question is perhaps to suggest that you don't consider changing either
parameter, and then you don't need to ask. :-)
--
Viktor.
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