In order to reduce our amount of backpressure we need to limit the
amount of concurrent chunk requests we can have so the gateway buffer
has some time to breathe.
The previous code would check zombie connections depending on whether
HEARTBEAT_ACK was received. Unfortunately when there's exceeding
backpressure the connection can terminate since the HEARTBEAT_ACK is
buffered very far away despite it being there, just not received yet.
This slows down chunking significantly for bots in a large number of
guilds since it goes down from 75 guilds/request to 1 guild/request.
However the logic was rewritten to fire the chunking request
immediately after receiving the GUILD_CREATE rather than waiting for
all the guilds in the ready stream before doing it.
`h2` is the semantically correct heading here, as `h1` is for
document titles and `h2` is for the top level headings within
a document. `h3` should be used for subheadings of `h2` headings.
This is mainly a half-implemented commit. There are a few more places
where cache consistency is necessary. In the future there will
probably be a member cache policy enum that will be used and cache
consistency will be tackled in part of that larger refactoring.
In order to reduce our amount of backpressure we need to limit the
amount of concurrent chunk requests we can have so the gateway buffer
has some time to breathe.
The previous code would check zombie connections depending on whether
HEARTBEAT_ACK was received. Unfortunately when there's exceeding
backpressure the connection can terminate since the HEARTBEAT_ACK is
buffered very far away despite it being there, just not received yet.
