How to analyze the flow control reason in 3.11.7

[rxjhfmf]

I got a flow control problem from a publish connetion in 3.11.7 , as below:

Describe the solution you'd like

the server status :
Runtime

OS PID: 20
OS: Linux
Uptime (seconds): 64844
Is under maintenance?: false
RabbitMQ version: 3.11.7
RabbitMQ release series support status: supported
Node name: rabbit@rabbitmq
Erlang configuration: Erlang/OTP 25 [erts-13.1.4] [source] [64-bit] [smp:12:12] [ds:4:4:10] [async-threads:1] [jit:ns]
Crypto library: OpenSSL 1.1.1s 1 Nov 2022
Erlang processes: 2957 used, 1048576 limit
Scheduler run queue: 66
Cluster heartbeat timeout (net_ticktime): 600

Plugins

Enabled plugin file: /etc/rabbitmq/enabled_plugins
Enabled plugins:

• rabbitmq_prometheus
• accept
• prometheus
• rabbitmq_management
• amqp_client
• rabbitmq_web_dispatch
• cowboy
• cowlib
• rabbitmq_management_agent

Data directory

Node data directory: /var/lib/rabbitmq/mnesia/rabbit@rabbitmq
Raft data directory: /var/lib/rabbitmq/mnesia/rabbit@rabbitmq/quorum/rabbit@rabbitmq

Config files

• /etc/rabbitmq/rabbitmq.conf
• /etc/rabbitmq/conf.d/10-defaults.conf

Log file(s)

• /var/log/rabbitmq/rabbit@rabbitmq_upgrade.log
• /var/log/rabbitmq/rabbitmq.log

Alarms

(none)

Memory

Total memory used: 1.1265 gb
Calculation strategy: rss
Memory high watermark setting: 0.4 of available memory, computed to: 108.1451 gb

queue_procs: 0.6167 gb (43.55 %)
binary: 0.6027 gb (42.56 %)
code: 0.0361 gb (2.55 %)
connection_channels: 0.0353 gb (2.49 %)
other_proc: 0.0253 gb (1.79 %)
connection_other: 0.0223 gb (1.58 %)
mgmt_db: 0.0215 gb (1.52 %)
other_system: 0.0204 gb (1.44 %)
connection_writers: 0.0159 gb (1.12 %)
plugins: 0.0107 gb (0.75 %)
other_ets: 0.0029 gb (0.2 %)
metrics: 0.0027 gb (0.19 %)
connection_readers: 0.0017 gb (0.12 %)
atom: 0.0015 gb (0.1 %)
mnesia: 0.0001 gb (0.01 %)
msg_index: 0.0001 gb (0.0 %)
quorum_ets: 0.0 gb (0.0 %)
quorum_queue_dlx_procs: 0.0 gb (0.0 %)
quorum_queue_procs: 0.0 gb (0.0 %)
stream_queue_procs: 0.0 gb (0.0 %)
stream_queue_replica_reader_procs: 0.0 gb (0.0 %)
allocated_unused: 0.0 gb (0.0 %)
queue_slave_procs: 0.0 gb (0.0 %)
reserved_unallocated: 0.0 gb (0.0 %)
stream_queue_coordinator_procs: 0.0 gb (0.0 %)

File Descriptors

Total: 30, limit: 1048479
Sockets: 26, limit: 943629

Free Disk Space

Low free disk space watermark: 10.0 gb
Free disk space: 3370.7498 gb

Totals

Connection count: 26
Queue count: 6
Virtual host count: 2

Listeners

Interface: [::], port: 15672, protocol: http, purpose: HTTP API
Interface: [::], port: 15692, protocol: http/prometheus, purpose: Prometheus exporter API over HTTP
Interface: [::], port: 25672, protocol: clustering, purpose: inter-node and CLI tool communication
Interface: [::], port: 5672, protocol: amqp, purpose: AMQP 0-9-1 and AMQP 1.0

Describe alternatives you've considered

No response

Additional context

No response