Why does "Kernel is offline" show anytime?

While using the model hub,
the below error popup shows
“Kernel is offline”

Then my action doesn’t operate.

What is the problem and how to solve it?

Hi,
Welcome to the forum!

I’m sorry to hear that you are getting this error.
This problem happens if the Kernel (the backend of the tool) is not running or if something is blocking the communication.

To debug it a bit further, you can run the tool as “perceptilabs -v=3”, which will print all the logs from the tool.
If you wouldn’t mind copy-pasting that log to over here, I can take a look at it and see what’s going on. :slight_smile:

All the best,
Robert

The below text is the log after ran as “perceptilabs -v=3”
As additional information, the execution environment is a virtual machine, virtual box 6.0.12 r133076 (Qt5.6.2).

Thank you in advance.

Operations to perform:
Apply all migrations: admin, api, auth, contenttypes, sessions
Running migrations:
No migrations to apply.
PerceptiLabs: Starting
Performing system checks…

Performing system checks…

Performing system checks…

System check identified no issues (0 silenced).
October 22, 2020 - 00:36:04
Django version 3.1.2, using settings ‘static_file_server.settings’
Starting development server at http://127.0.0.1:8080/
Quit the server with CONTROL-C.
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: rygg on port 8000
PerceptiLabs: fileserver on port 8011
System check identified no issues (0 silenced).
October 22, 2020 - 00:36:05
Django version 3.1.2, using settings ‘rygg.settings’
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.
System check identified no issues (0 silenced).
October 22, 2020 - 00:36:05
Django version 3.1.2, using settings ‘fileserver.settings’
Starting development server at http://127.0.0.1:8011/
Quit the server with CONTROL-C.
[2506:2506:1022/093607.083805:ERROR:edid_parser.cc(102)] Too short EDID data: manufacturer id
[2594:2594:1022/093607.962938:ERROR:viz_main_impl.cc(161)] Exiting GPU process due to errors during initialization
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
[22/Oct/2020 00:36:09] “GET /?token=98w9vjQxcsJLdmuxRH-Ou7kiyOLVt3nH7p5AU_5240I HTTP/1.1” 200 493
[22/Oct/2020 00:36:09] “GET /static/styles/vendors.35c4778bcc8f79099718.css HTTP/1.1” 304 0
[22/Oct/2020 00:36:10] “GET /static/js/1.e4e71d6113ebf7790994.js HTTP/1.1” 304 0
[22/Oct/2020 00:36:10] “GET /static/js/app.ccb175d5b34e69a291d4.js HTTP/1.1” 304 0
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
[2801:1:1022/093616.825823:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[2801:1:1022/093616.826706:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[2801:1:1022/093616.986967:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[2801:1:1022/093616.989820:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
[2801:1:1022/093617.125545:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[2801:1:1022/093617.126518:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
Traceback (most recent call last):
File “”, line 1, in
File “perceptilabs/mainServer.py”, line 43, in perceptilabs.mainServer.main
File “perceptilabs/logconf.py”, line 92, in perceptilabs.logconf.setup_application_logger
File “/usr/lib/python3.6/logging/init.py”, line 1032, in init
StreamHandler.init(self, self._open())
File “/usr/lib/python3.6/logging/init.py”, line 1061, in _open
return open(self.baseFilename, self.mode, encoding=self.encoding)
PermissionError: [Errno 13] Permission denied: ‘/usr/local/lib/python3.6/dist-packages/perceptilabs/kernel.log’
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
[22/Oct/2020 00:36:24] “GET /?token=98w9vjQxcsJLdmuxRH-Ou7kiyOLVt3nH7p5AU_5240I HTTP/1.1” 200 493
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
[22/Oct/2020 00:36:28] “GET /static/core_url HTTP/1.1” 304 0
[22/Oct/2020 00:36:28] “GET /static/img/tutorial-background.ac2e517.png HTTP/1.1” 304 0
[22/Oct/2020 00:36:28] “GET /version?token=98w9vjQxcsJLdmuxRH-Ou7kiyOLVt3nH7p5AU_5240I HTTP/1.1” 200 21
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
[22/Oct/2020 00:36:29] “GET /static/fonts/nunito-sans-v5-latin-regular.9c6a1ff.woff2 HTTP/1.1” 304 0
[22/Oct/2020 00:36:29] “GET /static/fonts/nunito-sans-v5-latin-600.b56c7e1.woff2 HTTP/1.1” 304 0
[22/Oct/2020 00:36:29] “GET /static/fonts/icomoon.9d6c449.woff HTTP/1.1” 304 0
[22/Oct/2020 00:36:29] “GET /static/fonts/nunito-sans-v5-latin-700.d0b6d0f.woff2 HTTP/1.1” 304 0
[22/Oct/2020 00:36:29] “HEAD /directories?path=/home/nini/Documents/Perceptilabs/Default/myGAN%201&token=98w9vjQxcsJLdmuxRH-Ou7kiyOLVt3nH7p5AU_5240I HTTP/1.1” 200 61
[22/Oct/2020 00:36:29] “HEAD /directories?path=/home/nini/Documents/Perceptilabs/Default/myGAN%202&token=98w9vjQxcsJLdmuxRH-Ou7kiyOLVt3nH7p5AU_5240I HTTP/1.1” 200 61

Exception happened during processing of request from (‘127.0.0.1’, 48328)

Exception happened during processing of request from (‘127.0.0.1’, 48368)
Traceback (most recent call last):
File “/usr/lib/python3.6/socketserver.py”, line 654, in process_request_thread
self.finish_request(request, client_address)
File “/usr/lib/python3.6/socketserver.py”, line 364, in finish_request
self.RequestHandlerClass(request, client_address, self)
File “/usr/lib/python3.6/socketserver.py”, line 724, in init
self.handle()
File “/usr/local/lib/python3.6/dist-packages/django/core/servers/basehttp.py”, line 174, in handle
self.handle_one_request()
File “/usr/local/lib/python3.6/dist-packages/django/core/servers/basehttp.py”, line 182, in handle_one_request
self.raw_requestline = self.rfile.readline(65537)
File “/usr/lib/python3.6/socket.py”, line 586, in readinto
return self._sock.recv_into(b)
ConnectionResetError: [Errno 104] Connection reset by peer

Traceback (most recent call last):
File “/usr/lib/python3.6/socketserver.py”, line 654, in process_request_thread
self.finish_request(request, client_address)
File “/usr/lib/python3.6/socketserver.py”, line 364, in finish_request
self.RequestHandlerClass(request, client_address, self)
File “/usr/lib/python3.6/socketserver.py”, line 724, in init
self.handle()
File “/usr/local/lib/python3.6/dist-packages/django/core/servers/basehttp.py”, line 174, in handle
self.handle_one_request()
File “/usr/local/lib/python3.6/dist-packages/django/core/servers/basehttp.py”, line 182, in handle_one_request
self.raw_requestline = self.rfile.readline(65537)
File “/usr/lib/python3.6/socket.py”, line 586, in readinto
return self._sock.recv_into(b)
ConnectionResetError: [Errno 104] Connection reset by peer

[22/Oct/2020 00:36:29] “GET /json_models?path=/home/nini/Documents/Perceptilabs/Default/myGAN%201/model.json&token=98w9vjQxcsJLdmuxRH-Ou7kiyOLVt3nH7p5AU_5240I HTTP/1.1” 200 13277
[22/Oct/2020 00:36:29] “GET /json_models?path=/home/nini/Documents/Perceptilabs/Default/myGAN%202/model.json&token=98w9vjQxcsJLdmuxRH-Ou7kiyOLVt3nH7p5AU_5240I HTTP/1.1” 200 12959
[22/Oct/2020 00:36:29] “GET /json_models?path=/home/nini/Documents/Perceptilabs/Default/myGAN%202/model.json&token=98w9vjQxcsJLdmuxRH-Ou7kiyOLVt3nH7p5AU_5240I HTTP/1.1” 200 12959
[22/Oct/2020 00:36:29] “GET /json_models?path=/home/nini/Documents/Perceptilabs/Default/myGAN%201/model.json&token=98w9vjQxcsJLdmuxRH-Ou7kiyOLVt3nH7p5AU_5240I HTTP/1.1” 200 13277
[22/Oct/2020 00:36:29] “HEAD /directories?path=/home/nini/Documents/Perceptilabs/Default/myGAN%201&token=98w9vjQxcsJLdmuxRH-Ou7kiyOLVt3nH7p5AU_5240I HTTP/1.1” 200 61

Exception happened during processing of request from (‘127.0.0.1’, 48376)
Traceback (most recent call last):
File “/usr/lib/python3.6/socketserver.py”, line 654, in process_request_thread
self.finish_request(request, client_address)
File “/usr/lib/python3.6/socketserver.py”, line 364, in finish_request
self.RequestHandlerClass(request, client_address, self)
File “/usr/lib/python3.6/socketserver.py”, line 724, in init
self.handle()
File “/usr/local/lib/python3.6/dist-packages/django/core/servers/basehttp.py”, line 174, in handle
self.handle_one_request()
File “/usr/local/lib/python3.6/dist-packages/django/core/servers/basehttp.py”, line 182, in handle_one_request
self.raw_requestline = self.rfile.readline(65537)
File “/usr/lib/python3.6/socket.py”, line 586, in readinto
return self._sock.recv_into(b)
ConnectionResetError: [Errno 104] Connection reset by peer

[22/Oct/2020 00:36:30] “POST /json_models?path=/home/nini/Documents/Perceptilabs/Default/myGAN%201&token=98w9vjQxcsJLdmuxRH-Ou7kiyOLVt3nH7p5AU_5240I HTTP/1.1” 200 72
[22/Oct/2020 00:36:30] “POST /json_models?path=/home/nini/Documents/Perceptilabs/Default/myGAN%202&token=98w9vjQxcsJLdmuxRH-Ou7kiyOLVt3nH7p5AU_5240I HTTP/1.1” 200 72
[22/Oct/2020 00:36:30] “HEAD /directories?path=/home/nini/Documents/Perceptilabs/Default/myGAN%202&token=98w9vjQxcsJLdmuxRH-Ou7kiyOLVt3nH7p5AU_5240I HTTP/1.1” 200 61

Exception happened during processing of request from (‘127.0.0.1’, 48398)
Traceback (most recent call last):
File “/usr/lib/python3.6/socketserver.py”, line 654, in process_request_thread
self.finish_request(request, client_address)
File “/usr/lib/python3.6/socketserver.py”, line 364, in finish_request
self.RequestHandlerClass(request, client_address, self)
File “/usr/lib/python3.6/socketserver.py”, line 724, in init
self.handle()
File “/usr/local/lib/python3.6/dist-packages/django/core/servers/basehttp.py”, line 174, in handle
self.handle_one_request()
File “/usr/local/lib/python3.6/dist-packages/django/core/servers/basehttp.py”, line 182, in handle_one_request
self.raw_requestline = self.rfile.readline(65537)
File “/usr/lib/python3.6/socket.py”, line 586, in readinto
return self._sock.recv_into(b)
ConnectionResetError: [Errno 104] Connection reset by peer

PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
[2506:2506:1022/093753.712275:ERROR:edid_parser.cc(102)] Too short EDID data: manufacturer id
[2506:2506:1022/093753.729476:ERROR:edid_parser.cc(102)] Too short EDID data: manufacturer id
[2506:2506:1022/093754.821595:ERROR:edid_parser.cc(102)] Too short EDID data: manufacturer id
[2506:2506:1022/093755.217853:ERROR:edid_parser.cc(102)] Too short EDID data: manufacturer id
[2506:2506:1022/093755.354932:ERROR:edid_parser.cc(102)] Too short EDID data: manufacturer id
^[PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
[2506:2506:1022/093759.541275:ERROR:edid_parser.cc(102)] Too short EDID data: manufacturer id
[2506:2506:1022/093759.587022:ERROR:edid_parser.cc(102)] Too short EDID data: manufacturer id
[2506:2506:1022/093800.756082:ERROR:edid_parser.cc(102)] Too short EDID data: manufacturer id
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
[3068:1:1022/093816.795335:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3068:1:1022/093816.795873:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
[3150:1:1022/093838.569332:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093838.570032:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093838.623161:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093838.623689:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093838.624169:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093838.708574:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093838.709095:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093838.871761:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093838.872346:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093838.877763:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093838.878275:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093838.914525:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093838.915018:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093839.473474:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093839.474092:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
[3150:1:1022/093908.283699:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.284175:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.289490:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.291064:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.317793:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.323227:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.329597:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.330118:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.397187:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.397724:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.449682:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.450242:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.465756:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.466323:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.475569:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.478195:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.482445:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.483042:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.486448:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.491409:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.495036:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.495577:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.499525:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.500213:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.509187:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.512329:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.515695:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.516231:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.523594:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.524860:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.530944:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.531574:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.535496:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.536089:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.569852:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.570383:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.590099:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.595195:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.600636:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.601897:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.616273:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.617722:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.621678:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.622667:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.630226:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.631578:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.638162:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[3150:1:1022/093908.638657:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000
PerceptiLabs: Waiting for services to listen on these ports:
PerceptiLabs: kernel on port 5000

Hi, thank you for sharing the logs!

It seems like the Kernel crashes at startup thanks to this:
PermissionError: [Errno 13] Permission denied: ‘/usr/local/lib/python3.6/dist-packages/perceptilabs/kernel.log’
What happens is that the Kernel tries to create a log where debugging info is saved.
If you can open up that permission it would likely work a lot better (chmod +rwx in that folder should do it) :slight_smile:
We will also add in an option for logging it as a file or not in a later to completely avoid this.

Let me know if that works and if I can help out with anything else.

All the best,
Robert

Hi @robertl ,
I am also receving error of “Kernel offline” .
On acquiring the log after running “perceptilabs -v=3” I am getting the error of (ConnectionResetError: [Errno 104] Connection reset by peer)

The error as follows:

Exception happened during processing of request from (‘127.0.0.1’, 53030)
Traceback (most recent call last):
File “/home/rmishra/anaconda3/lib/python3.7/socketserver.py”, line 650, in process_request_thread
self.finish_request(request, client_address)
File “/home/rmishra/anaconda3/lib/python3.7/socketserver.py”, line 360, in finish_request
self.RequestHandlerClass(request, client_address, self)
File “/home/rmishra/anaconda3/lib/python3.7/socketserver.py”, line 720, in init
self.handle()
File “/home/rmishra/anaconda3/lib/python3.7/site-packages/django/core/servers/basehttp.py”, line 174, in handle
self.handle_one_request()
File “/home/rmishra/anaconda3/lib/python3.7/site-packages/django/core/servers/basehttp.py”, line 182, in handle_one_request
self.raw_requestline = self.rfile.readline(65537)
File “/home/rmishra/anaconda3/lib/python3.7/socket.py”, line 589, in readinto
return self._sock.recv_into(b)
ConnectionResetError: [Errno 104] Connection reset by peer

I am not getting any idea what to do now. If you need I can also post the whole log.
Waiting for your reply

Hi @Rohitpro!

That “Connection reset by peer” error should be harmless in this case (it just says that a message was interrupted and the connection is being reset, can happen if the browser gets reset or closed).

If you can post the full log then that would be very helpful :slight_smile:

All the best,
Robert

Hi @robertl ,
Thanks for your quick reply. The output log on runnning ( perceptilabs -v=3 ) is as follows:

#############################################
Operations to perform:
Apply all migrations: admin, api, auth, contenttypes, sessions
Running migrations:
No migrations to apply.
PerceptiLabs: Starting
Performing system checks…

Performing system checks…

System check identified no issues (0 silenced).
October 30, 2020 - 14:42:48
Django version 3.1.2, using settings ‘static_file_server.settings’
Starting development server at http://127.0.0.1:8080/
Quit the server with CONTROL-C.
Performing system checks…

System check identified no issues (0 silenced).
October 30, 2020 - 14:42:48
Django version 3.1.2, using settings ‘fileserver.settings’
Starting development server at http://127.0.0.1:8011/
Quit the server with CONTROL-C.
System check identified no issues (0 silenced).
October 30, 2020 - 14:42:48
Django version 3.1.2, using settings ‘rygg.settings’
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.
/home/rmishra/anaconda3/lib/python3.7/importlib/_bootstrap.py:219: RuntimeWarning: greenlet.greenlet size changed, may indicate binary incompatibility. Expected 144 from C header, got 152 from PyObject
return f(*args, **kwds)
/home/rmishra/anaconda3/lib/python3.7/importlib/_bootstrap.py:219: RuntimeWarning: greenlet.greenlet size changed, may indicate binary incompatibility. Expected 144 from C header, got 152 from PyObject
return f(*args, **kwds)
/home/rmishra/anaconda3/lib/python3.7/importlib/_bootstrap.py:219: RuntimeWarning: greenlet.greenlet size changed, may indicate binary incompatibility. Expected 144 from C header, got 152 from PyObject
return f(*args, **kwds)
/home/rmishra/anaconda3/lib/python3.7/importlib/_bootstrap.py:219: RuntimeWarning: greenlet.greenlet size changed, may indicate binary incompatibility. Expected 144 from C header, got 152 from PyObject
return f(*args, **kwds)
2020-10-30 20:12:50,152 - INFO - :1 - Reporting errors with commit id: c4df85e1d756dc73f4eecc71197a24fd78b281d8
PerceptiLabs is ready…
2020-10-30 20:12:50,164 - INFO - :1 - Trying to listen to: 0.0.0.0 5000
[30/Oct/2020 14:42:50] “GET /?token=cKtM9k50sIaVVQkWcacVwZRgzATeTm1YO6z-E6eyshY HTTP/1.1” 200 493
[30/Oct/2020 14:42:50] “GET /static/img/favicon.ico?v=0.9.8 HTTP/1.1” 200 149062

Exception happened during processing of request from (‘127.0.0.1’, 57458)
Traceback (most recent call last):
File “/home/rmishra/anaconda3/lib/python3.7/socketserver.py”, line 650, in process_request_thread
self.finish_request(request, client_address)
File “/home/rmishra/anaconda3/lib/python3.7/socketserver.py”, line 360, in finish_request
self.RequestHandlerClass(request, client_address, self)
File “/home/rmishra/anaconda3/lib/python3.7/socketserver.py”, line 720, in init
self.handle()
File “/home/rmishra/anaconda3/lib/python3.7/site-packages/django/core/servers/basehttp.py”, line 174, in handle
self.handle_one_request()
File “/home/rmishra/anaconda3/lib/python3.7/site-packages/django/core/servers/basehttp.py”, line 182, in handle_one_request
self.raw_requestline = self.rfile.readline(65537)
File “/home/rmishra/anaconda3/lib/python3.7/socket.py”, line 589, in readinto
return self._sock.recv_into(b)
ConnectionResetError: [Errno 104] Connection reset by peer

PerceptiLabs: PerceptiLabs Started
PerceptiLabs: PerceptiLabs is running at http://localhost:8080/?token=cKtM9k50sIaVVQkWcacVwZRgzATeTm1YO6z-E6eyshY
PerceptiLabs: Use Control-C to stop this server and shut down all PerceptiLabs processes.
[30/Oct/2020 14:42:52] “GET /?token=cKtM9k50sIaVVQkWcacVwZRgzATeTm1YO6z-E6eyshY HTTP/1.1” 200 493
[30/Oct/2020 14:42:52] “GET /static/img/favicon.ico?v=0.9.8 HTTP/1.1” 200 149062

Exception happened during processing of request from (‘127.0.0.1’, 57465)
Traceback (most recent call last):
File “/home/rmishra/anaconda3/lib/python3.7/socketserver.py”, line 650, in process_request_thread
self.finish_request(request, client_address)
File “/home/rmishra/anaconda3/lib/python3.7/socketserver.py”, line 360, in finish_request
self.RequestHandlerClass(request, client_address, self)
File “/home/rmishra/anaconda3/lib/python3.7/socketserver.py”, line 720, in init
self.handle()
File “/home/rmishra/anaconda3/lib/python3.7/site-packages/django/core/servers/basehttp.py”, line 174, in handle
self.handle_one_request()
File “/home/rmishra/anaconda3/lib/python3.7/site-packages/django/core/servers/basehttp.py”, line 182, in handle_one_request
self.raw_requestline = self.rfile.readline(65537)
File “/home/rmishra/anaconda3/lib/python3.7/socket.py”, line 589, in readinto
return self._sock.recv_into(b)
ConnectionResetError: [Errno 104] Connection reset by peer

[30/Oct/2020 14:42:54] “GET /version?token=cKtM9k50sIaVVQkWcacVwZRgzATeTm1YO6z-E6eyshY HTTP/1.1” 200 21
2020-10-30 20:13:02,452 - INFO - server.py:191 - Created coreLogic for network ‘None’
2020-10-30 20:13:02,495 - INFO - server.py:191 - Frontend receiver: , Frontend request: setUser
2020-10-30 20:13:02,495 - INFO - server.py:191 - Created coreLogic for network ‘’

#################################################################

Please look at it…

Hi @robertl… you are absolutely right … once i restarted the browser and then restarted the process it worked fine… Thanks bro… :slight_smile:

Great! :slight_smile:
Let me know if I can help with anything else.

@robertl … here comes the issue again … On selecting any model such as (Linear Regression) in “create model” option in Model Hub window… The model is not getting loaded and although it shows the model is getting loaded… The model file of Regression model in the path shown is in bytes… After around 1 min the kernel is getting offline. This is happening with each model that i try to load (such as GAN, CNN)… Attaching the snapshot of it.

I have also restarted the browser many times and then ran the process but still the error is persisting.

Log details are as follows:


Operations to perform:
Apply all migrations: admin, api, auth, contenttypes, sessions
Running migrations:
No migrations to apply.
PerceptiLabs: Starting
Performing system checks…

Performing system checks…

System check identified no issues (0 silenced).
October 30, 2020 - 15:54:14
Django version 3.1.2, using settings ‘static_file_server.settings’
Starting development server at http://127.0.0.1:8080/
Quit the server with CONTROL-C.
Performing system checks…

System check identified no issues (0 silenced).
October 30, 2020 - 15:54:15
Django version 3.1.2, using settings ‘fileserver.settings’
Starting development server at http://127.0.0.1:8011/
Quit the server with CONTROL-C.
System check identified no issues (0 silenced).
October 30, 2020 - 15:54:15
Django version 3.1.2, using settings ‘rygg.settings’
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.
/home/rmishra/anaconda3/lib/python3.7/importlib/_bootstrap.py:219: RuntimeWarning: greenlet.greenlet size changed, may indicate binary incompatibility. Expected 144 from C header, got 152 from PyObject
return f(*args, **kwds)
/home/rmishra/anaconda3/lib/python3.7/importlib/_bootstrap.py:219: RuntimeWarning: greenlet.greenlet size changed, may indicate binary incompatibility. Expected 144 from C header, got 152 from PyObject
return f(*args, **kwds)
/home/rmishra/anaconda3/lib/python3.7/importlib/_bootstrap.py:219: RuntimeWarning: greenlet.greenlet size changed, may indicate binary incompatibility. Expected 144 from C header, got 152 from PyObject
return f(*args, **kwds)
/home/rmishra/anaconda3/lib/python3.7/importlib/_bootstrap.py:219: RuntimeWarning: greenlet.greenlet size changed, may indicate binary incompatibility. Expected 144 from C header, got 152 from PyObject
return f(*args, **kwds)
2020-10-30 21:24:16,329 - INFO - :1 - Reporting errors with commit id: c4df85e1d756dc73f4eecc71197a24fd78b281d8
PerceptiLabs is ready…
2020-10-30 21:24:16,340 - INFO - :1 - Trying to listen to: 0.0.0.0 5000
[5375:5375:1030/212417.089045:ERROR:viz_main_impl.cc(180)] Exiting GPU process due to errors during initialization
[5336:5336:1030/212417.237028:ERROR:account_tracker.cc(241)] AccessTokenFetched error: Invalid credentials (credentials rejected by client).
[30/Oct/2020 15:54:17] “GET /?token=vdKMblB-2U81_q5rPOZNacZuYy56rjgWKQcolTBvtuQ HTTP/1.1” 200 493
PerceptiLabs: PerceptiLabs Started
PerceptiLabs: PerceptiLabs is running at http://localhost:8080/?token=vdKMblB-2U81_q5rPOZNacZuYy56rjgWKQcolTBvtuQ
PerceptiLabs: Use Control-C to stop this server and shut down all PerceptiLabs processes.
[5504:1:1030/212425.150146:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[5504:1:1030/212425.151214:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[5504:1:1030/212425.157851:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[5504:1:1030/212425.158399:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[5504:1:1030/212425.170540:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[5504:1:1030/212425.170974:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
[30/Oct/2020 15:54:27] “GET /?token=vdKMblB-2U81_q5rPOZNacZuYy56rjgWKQcolTBvtuQ HTTP/1.1” 200 493
[30/Oct/2020 15:54:28] “GET /version?token=vdKMblB-2U81_q5rPOZNacZuYy56rjgWKQcolTBvtuQ HTTP/1.1” 200 21
2020-10-30 21:24:28,974 - INFO - server.py:191 - Created coreLogic for network ‘None’
2020-10-30 21:24:29,022 - INFO - server.py:191 - Frontend receiver: , Frontend request: setUser
2020-10-30 21:24:29,023 - INFO - server.py:191 - Created coreLogic for network ‘’
2020-10-30 21:24:29,023 - INFO - server.py:191 - User has been set to rohit2coolchamp@gmail.com
[30/Oct/2020 15:54:29] “GET /json_models?path=/home/rmishra/Documents/Perceptilabs/Default/LinearRegression%201/model.json&token=vdKMblB-2U81_q5rPOZNacZuYy56rjgWKQcolTBvtuQ HTTP/1.1” 200 5758
[30/Oct/2020 15:54:29] “GET /json_models?path=/home/rmishra/Documents/Perceptilabs/Default/LinearRegression%201/model.json&token=vdKMblB-2U81_q5rPOZNacZuYy56rjgWKQcolTBvtuQ HTTP/1.1” 200 5758
[30/Oct/2020 15:54:29] “HEAD /directories?path=/home/rmishra/Documents/Perceptilabs/Default/LinearRegression%201&token=vdKMblB-2U81_q5rPOZNacZuYy56rjgWKQcolTBvtuQ HTTP/1.1” 200 75
[30/Oct/2020 15:54:29] “POST /json_models?path=/home/rmishra/Documents/Perceptilabs/Default/LinearRegression%201&token=vdKMblB-2U81_q5rPOZNacZuYy56rjgWKQcolTBvtuQ HTTP/1.1” 200 86
[30/Oct/2020 15:54:29] “HEAD /directories?path=/home/rmishra/Documents/Perceptilabs/Default/LinearRegression%201&token=vdKMblB-2U81_q5rPOZNacZuYy56rjgWKQcolTBvtuQ HTTP/1.1” 200 75
[30/Oct/2020 15:54:36] “OPTIONS /directories?path=/home/rmishra/Documents/Perceptilabs/Default/LinearRegression%201&token=vdKMblB-2U81_q5rPOZNacZuYy56rjgWKQcolTBvtuQ HTTP/1.1” 200 0
[30/Oct/2020 15:54:36] “DELETE /directories?path=/home/rmishra/Documents/Perceptilabs/Default/LinearRegression%201&token=vdKMblB-2U81_q5rPOZNacZuYy56rjgWKQcolTBvtuQ HTTP/1.1” 200 75
[30/Oct/2020 15:54:41] “GET /directories/resolved_dir?path=/home/rmishra/Documents/Perceptilabs/Default&token=vdKMblB-2U81_q5rPOZNacZuYy56rjgWKQcolTBvtuQ HTTP/1.1” 200 56
[30/Oct/2020 15:54:41] “GET /directories/get_folder_content?path=/home/rmishra/Documents/Perceptilabs/Default&token=vdKMblB-2U81_q5rPOZNacZuYy56rjgWKQcolTBvtuQ HTTP/1.1” 200 110
[30/Oct/2020 15:54:42] “GET /directories/root?token=vdKMblB-2U81_q5rPOZNacZuYy56rjgWKQcolTBvtuQ HTTP/1.1” 200 76
[30/Oct/2020 15:54:42] “HEAD /directories?path=/home/rmishra/Documents/Perceptilabs/Default/LinearRegression%201&token=vdKMblB-2U81_q5rPOZNacZuYy56rjgWKQcolTBvtuQ HTTP/1.1” 204 34
[30/Oct/2020 15:54:43] “POST /json_models?path=/home/rmishra/Documents/Perceptilabs/Default/LinearRegression%201&token=vdKMblB-2U81_q5rPOZNacZuYy56rjgWKQcolTBvtuQ HTTP/1.1” 200 86
2020-10-30 21:28:41,445 - WARNING - _base.py:324 - Azure handler raised exception AuthenticationError(‘Authorization timeout.\nAuthorization timeout.’)


Kindly help…
Thankyou so much.

Hmm that’s a new one.
I’ll take a look and write here as soon as I have an update!

All the best,
Robert