wangha

This is a mechanism designed especially for poor networks. "For the data that needs ensured delivery" That's the point.

nng_recv_aio can do it

This only can be reproduced in a special case. add following code : ``` +++ b/src/sp/transport/mqtts/broker_tls.c @@ -642,6 +642,9 @@ tlstran_pipe_recv_cb(void *arg) } goto recv_error; } + rv = NNG_EPROTO;...

The default value of parallel is `2 * the number of CPU cores`. This setup allows nanomq to perform optimally on most low-performance machines without consuming excessive memory. However, for...

Hi. Could you show the version number of commitid of nanomq you are using?

I can't reproduce this issue on my pc. ``` ./nanomq/nanomq start Config file is not specified, use default config file: /etc/nanomq.conf 2024-04-13 03:34:35 [222557] ERROR /home/wangha/Documents/nanomq/nng/src/supplemental/nanolib/conf_ver2.c:1532 conf_parse_ver2: Configure file [/etc/nanomq.conf]...

It seems that the client side doesn't send a ping request within a duration of keepalive.