topfreegames / arkadiko

64%

Build Type

push

github

Committed by web-flow

Commit Message

fix: downgrade MQTT QoS from 2 to 1 to prevent dropped messages (#33)

QoS 2 (exactly-once) causes receive_maximum_exceeded errors on EMQX v5
during traffic bursts, as the broker's max_awaiting_rel limit (100) gets
overwhelmed. QoS 1 (at-least-once) uses a simpler 2-step handshake with
no awaiting_rel state, eliminating this bottleneck entirely. For chat
messages, at-least-once delivery is sufficient.

Related: emqx/emqx#13399 (broker returns wrong Receive Maximum in CONNACK)

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Coverage Stats

2 of 2 new or added lines in 2 files covered. (100.0%)

24 existing lines in 3 files now uncovered.

865 of 1349 relevant lines covered (64.12%)

11.26 hits per line