"An existing connection was forcibly closed by the remote host" results in reconnect attempts multiple times per second

[rpherbig]

Summary

I've got a discord bot that listens for commands in a channel. For long periods of time it's effectively idle. Most of the time this is fine, after what I presume is an idle timeout the bot is disconnected and reconnects just fine:

[ERROR : websocket @ 2024-08-09 11:14:38.577] The websocket connection has closed: (no information)
[INFO : websocket @ 2024-08-09 11:14:38.578] Instant reconnection flag was set - reconnecting right away
[INFO : websocket @ 2024-08-09 11:14:39.227] Resumed

However, sometimes I get behavior like this:

[INFO : websocket @ 2024-08-09 11:14:38.578] Instant reconnection flag was set - reconnecting right away
[INFO : websocket @ 2024-08-09 11:14:39.227] Resumed
[ERROR : websocket @ 2024-08-09 13:32:56.592] The websocket connection has closed: (no information)
[INFO : websocket @ 2024-08-09 13:32:56.592] Instant reconnection flag was set - reconnecting right away
[INFO : websocket @ 2024-08-09 13:32:57.299] Resumed
[ERROR : websocket @ 2024-08-09 14:04:09.399] An error occurred in the main websocket loop!
[ERROR : websocket @ 2024-08-09 14:04:09.399] Exception: #<Errno::ECONNRESET: An existing connection was forcibly closed by the remote host.>
[ERROR : websocket @ 2024-08-09 14:04:09.400] C:/Ruby32-x64/lib/ruby/3.2.0/openssl/buffering.rb:157:in `sysread'
[ERROR : websocket @ 2024-08-09 14:04:09.401] C:/Ruby32-x64/lib/ruby/3.2.0/openssl/buffering.rb:157:in `readpartial'
[ERROR : websocket @ 2024-08-09 14:04:09.402] C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/discordrb-3.5.0/lib/discordrb/gateway.rb:602:in `websocket_loop'
[ERROR : websocket @ 2024-08-09 14:04:09.403] C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/discordrb-3.5.0/lib/discordrb/gateway.rb:579:in `connect'
[ERROR : websocket @ 2024-08-09 14:04:09.404] C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/discordrb-3.5.0/lib/discordrb/gateway.rb:473:in `block in connect_loop'
[ERROR : websocket @ 2024-08-09 14:04:09.408] C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/discordrb-3.5.0/lib/discordrb/gateway.rb:472:in `loop'
[ERROR : websocket @ 2024-08-09 14:04:09.409] C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/discordrb-3.5.0/lib/discordrb/gateway.rb:472:in `connect_loop'
[ERROR : websocket @ 2024-08-09 14:04:09.410] C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/discordrb-3.5.0/lib/discordrb/gateway.rb:168:in `block in run_async'
[ERROR : websocket @ 2024-08-09 14:04:09.412] An error occurred in the main websocket loop!
[ERROR : websocket @ 2024-08-09 14:04:09.413] Exception: #<Errno::ECONNRESET: An existing connection was forcibly closed by the remote host.>
[ERROR : websocket @ 2024-08-09 14:04:09.414] C:/Ruby32-x64/lib/ruby/3.2.0/openssl/buffering.rb:157:in `sysread'
[ERROR : websocket @ 2024-08-09 14:04:09.416] C:/Ruby32-x64/lib/ruby/3.2.0/openssl/buffering.rb:157:in `readpartial'
[ERROR : websocket @ 2024-08-09 14:04:09.417] C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/discordrb-3.5.0/lib/discordrb/gateway.rb:602:in `websocket_loop'
[ERROR : websocket @ 2024-08-09 14:04:09.419] C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/discordrb-3.5.0/lib/discordrb/gateway.rb:579:in `connect'
[ERROR : websocket @ 2024-08-09 14:04:09.420] C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/discordrb-3.5.0/lib/discordrb/gateway.rb:473:in `block in connect_loop'
[ERROR : websocket @ 2024-08-09 14:04:09.421] C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/discordrb-3.5.0/lib/discordrb/gateway.rb:472:in `loop'
[ERROR : websocket @ 2024-08-09 14:04:09.422] C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/discordrb-3.5.0/lib/discordrb/gateway.rb:472:in `connect_loop'
[ERROR : websocket @ 2024-08-09 14:04:09.424] C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/discordrb-3.5.0/lib/discordrb/gateway.rb:168:in `block in run_async'
[ERROR : websocket @ 2024-08-09 14:04:09.426] An error occurred in the main websocket loop!
[ERROR : websocket @ 2024-08-09 14:04:09.426] Exception: #<Errno::ECONNRESET: An existing connection was forcibly closed by the remote host.>
[ERROR : websocket @ 2024-08-09 14:04:09.427] C:/Ruby32-x64/lib/ruby/3.2.0/openssl/buffering.rb:157:in `sysread'
[ERROR : websocket @ 2024-08-09 14:04:09.427] C:/Ruby32-x64/lib/ruby/3.2.0/openssl/buffering.rb:157:in `readpartial'
[ERROR : websocket @ 2024-08-09 14:04:09.428] C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/discordrb-3.5.0/lib/discordrb/gateway.rb:602:in `websocket_loop'
[ERROR : websocket @ 2024-08-09 14:04:09.429] C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/discordrb-3.5.0/lib/discordrb/gateway.rb:579:in `connect'
[ERROR : websocket @ 2024-08-09 14:04:09.432] C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/discordrb-3.5.0/lib/discordrb/gateway.rb:473:in `block in connect_loop'
[ERROR : websocket @ 2024-08-09 14:04:09.434] C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/discordrb-3.5.0/lib/discordrb/gateway.rb:472:in `loop'
[ERROR : websocket @ 2024-08-09 14:04:09.435] C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/discordrb-3.5.0/lib/discordrb/gateway.rb:472:in `connect_loop'
[ERROR : websocket @ 2024-08-09 14:04:09.436] C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/discordrb-3.5.0/lib/discordrb/gateway.rb:168:in `block in run_async'

and the exception repeats every few milliseconds

---

Environment

Ruby version:

PS C:\...> ruby -v
ruby 3.2.2 (2023-03-30 revision e51014f9c0) [x64-mingw-ucrt]

Discordrb version:

PS C:\...> gem list discordrb

*** LOCAL GEMS ***

discordrb (3.5.0)
discordrb-webhooks (3.5.0)