TrueNAS 12 core UI stop working

[Oleg.K]

Hello. I've got a same issue on two TrueNAS-12.0-U1 systems. Both of them used in replication. IU stop response. ssh is working. console show this error.

Code:

Jan 11 12:36:51 MOWST04 1 2021-01-11T12:36:51.948298+03:00 MOWST04.an.local collectd 1767 - - Traceback (most recent call last):
  File "/usr/local/lib/collectd_pyplugins/disktemp.py", line 62, in read
    with Client() as c:
  File "/usr/local/lib/python3.8/site-packages/middlewared/client/client.py", line 281, in __init__
    self._ws.connect()
  File "/usr/local/lib/python3.8/site-packages/middlewared/client/client.py", line 124, in connect
    rv = super(WSClient, self).connect()
  File "/usr/local/lib/python3.8/site-packages/ws4py/client/__init__.py", line 216, in connect
    self.sock.connect(self.bind_addr)
ConnectionRefusedError: [Errno 61] Connection refused

I've restarted middleware and can login. UI show this alert "
Quota exceeded on dataset MOWST04-POOL/.system/cores. Used 90.09% (922.5 MiB of 1 GiB).
2021-01-11 12:41:48 (Europe/Moscow) "

Code:

ls -la /var/db/system/cores
total 869087
drwxrwxr-x   2 root  wheel           4 Jan  6 01:42 .
drwxr-xr-x  10 root  wheel          12 Jan 11 13:11 ..
-rw-------   1 root  wheel  2978271232 Jan  6 01:42 python3.8.core
-rw-------   1 root  wheel    19243008 Dec  3 02:47 syslog-ng.core

Situation is same on both systems. How to purge python3.8.core file correctly?

 

[Oleg.K]

And TrueCommand stop show metrics on dashboard

 

[sretalla]

I guess service middlewared restart will bring it back, but this would be related to a set of well known issues covered in other threads.

 

[Oleg.K]

Restart service on system doesn't fix Quota exceeded issue

 

[anodos]

rm /var/db/system/cores/python3.8.core