Client exceeded max pending messages-> what is causing?

Configuration
1

Since a day or so I do recieve this kind of messages:

Logger: homeassistant.components.websocket_api.http.connection
Source: components/websocket_api/http.py:134
Integration: Home Assistant WebSocket API (documentation, issues)
First occurred: 08:20:10 (1245 occurrences)
Last logged: 14:44:34

[140580924236000] Client exceeded max pending messages [2]: 2048

Logger: homeassistant.components.websocket_api.http.connection
Source: components/websocket_api/http.py:159
Integration: Home Assistant WebSocket API (documentation, issues)
First occurred: 08:20:15 (683 occurrences)
Last logged: 14:44:39

[140580924236000] Client unable to keep up with pending messages. Stayed over 512 for 5 seconds. The system's load is too high or an integration is misbehaving

How to find out causing this?

2

The logs is generally useless to pinpoint the cause of this warning/error.
I have found no other way than to make trial and error runs of the entire setup.

3

Thanks. for the answer. Hopefully they will increase debug level in the future

4

Read this issue comment: Client unable to keep up with pending messages · Issue #68030 · home-assistant/core · GitHub

What is your cpu use like?

Also, further down:

Watch the websocket output on the console in Chrome for event storms Inspect -> Network (reload the page and watch the websocket stream)

5

Thanks for the help.

I did restart my HA VM this morning.
Until now this message didn’t pop up anymore.
I will keep an eye on it

6

I did do an inspection and do find a lot of:
image
about every second. It is pointing to my HA IP adress

image
image951×590 27.1 KB

I see it happening but I do not know what that means

7

I’m running now a couple of days after restart the HA VM. Until now it is not happening anymore.
Looks like problem solved

8

Definitely not solved for me. This began after upgrading to 2023.7.1
I have tried to disable a lot of integration, one-by-one but to no avail so far.
Any additional advice on how to debug this is highly appreciated.

Logger: homeassistant.components.websocket_api.http.connection
Source: components/websocket_api/http.py:51
Integration: Home Assistant WebSocket API (documentation, issues)
First occurred: 7:17:04 AM (14 occurrences)
Last logged: 7:18:08 AM

[140207551890896] XXXXXXXXXX from 192.168.1.1 (Mozilla/5.0 (Linux; Android 8.0.0; SM-G935F Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/114.0.5735.196 Mobile Safari/537.36 Home Assistant/2023.6.0-10170 (Android 8.0.0; SM-G935F)): Client unable to keep up with pending messages. Reached 4096 pending messages. The system's load is too high or an integration is misbehaving; Last message was: {"id":7497,"type":"result","success":true,"result":null}
[140207553957840] XXXXXXXXXX from 192.168.1.1 (Mozilla/5.0 (Linux; Android 8.0.0; SM-G935F Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/114.0.5735.196 Mobile Safari/537.36 Home Assistant/2023.6.0-10170 (Android 8.0.0; SM-G935F)): Client unable to keep up with pending messages. Reached 4096 pending messages. The system's load is too high or an integration is misbehaving; Last message was: {"id":17874,"type":"event","event":{"type":"current","notifications":{}}}
[140207458602832] XXXXXXXXXX from 192.168.1.1 (Mozilla/5.0 (Linux; Android 8.0.0; SM-G935F Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/114.0.5735.196 Mobile Safari/537.36 Home Assistant/2023.6.0-10170 (Android 8.0.0; SM-G935F)): Client unable to keep up with pending messages. Reached 4096 pending messages. The system's load is too high or an integration is misbehaving; Last message was: {"id":8128,"type":"result","success":true,"result":null}
[140207548531856] XXXXXXXXXX from 192.168.1.1 (Mozilla/5.0 (Linux; Android 8.0.0; SM-G935F Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/114.0.5735.196 Mobile Safari/537.36 Home Assistant/2023.6.0-10170 (Android 8.0.0; SM-G935F)): Client unable to keep up with pending messages. Reached 4096 pending messages. The system's load is too high or an integration is misbehaving; Last message was: {"id":14241,"type":"result","success":true,"result":null}
[140207539474512] XXXXXXXXXX from 192.168.1.1 (Mozilla/5.0 (Linux; Android 8.0.0; SM-G935F Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/114.0.5735.196 Mobile Safari/537.36 Home Assistant/2023.6.0-10170 (Android 8.0.0; SM-G935F)): Client unable to keep up with pending messages. Reached 4096 pending messages. The system's load is too high or an integration is misbehaving; Last message was: {"id":19002,"type":"result","success":true,"result":null}
9

I have the same problem. I narrowed it down to ESPhome devices

10

I’m having similar issues, how did you manage to narrow it down to ESPhome?

11

I have reduced number of sensors in ESPhome as well as update_interval
I have 30+ smart sockets that measure power, when I reduced update period to 30s and removed a lot of measurements it become normal and usable

BUT, this is also AGAINST the idea of having the sensors that are useful - why do I need power showing every 30s? I would like every 3s.