mpolatcan opened a new issue, #30287:
URL: https://github.com/apache/superset/issues/30287
### Bug description
When I visiting Home and Charts page, I can see thumbnails correctly, but
when I visit Dashboard page I can't see thumbnails. I configured S3 caching for
thumbnails like below in superset_config.py:
```python
def init_thumbnail_cache(app, config, cache_args, cache_options) -> S3Cache:
return S3Cache("superset-result-backend-cache", 'thumbnails/')
THUMBNAIL_CACHE_CONFIG = {'CACHE_TYPE':
'superset_config.init_thumbnail_cache'}
THUMBNAIL_SELENIUM_USER = get_env("THUMBNAIL_SELENIUM_USER", default="Admin")
THUMBNAIL_EXECUTE_AS = [ExecutorType.SELENIUM]
```
At the behind, I am seeing logs like below:
```
2024-09-16
14:45:23,017:WARNING:superset.common.utils.query_cache_manager:force_cached
(QueryContext): value not found for key 9e7535a0f4d4bd1307c7e630a3756c0e
2024-09-16 14:48:42,882:INFO:superset.utils.screenshots:Attempting to get
from cache: aa065c951be3dedba518d13eac81976d
2024-09-16 14:48:42,893:INFO:superset.utils.screenshots:Attempting to get
from cache: 318a398cd116f164114f22aca987c5e9
2024-09-16 14:48:43,262:INFO:superset.utils.screenshots:Attempting to get
from cache: 96feaa217625a1c02d3c42b62841287b
/home/superset/superset/venv/lib/python3.11/site-packages/_distutils_hack/__init__.py:31:
UserWarning: Setuptools is replacing distutils. Support for replacing an
already imported distutils is deprecated. In the future, this condition will
fail. Register concerns at
https://github.com/pypa/setuptools/issues/new?template=distutils-deprecation.yml
warnings.warn(
2024-09-16 14:48:44,990:ERROR:superset.utils.json:JSON is not valid
Expecting value: line 1 column 1 (char 0)
Traceback (most recent call last):
File
"/home/superset/superset/venv/lib/python3.11/site-packages/superset/utils/json.py",
line 244, in loads
return simplejson.loads(
^^^^^^^^^^^^^^^^^
File
"/home/superset/superset/venv/lib/python3.11/site-packages/simplejson/__init__.py",
line 514, in loads
return _default_decoder.decode(s)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/home/superset/superset/venv/lib/python3.11/site-packages/simplejson/decoder.py",
line 386, in decode
obj, end = self.raw_decode(s)
^^^^^^^^^^^^^^^^^^
File
"/home/superset/superset/venv/lib/python3.11/site-packages/simplejson/decoder.py",
line 416, in raw_decode
return self.scan_once(s, idx=_w(s, idx).end())
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
simplejson.errors.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
2024-09-16 14:48:45,108:ERROR:superset.utils.json:JSON is not valid
Expecting value: line 1 column 1 (char 0)
Traceback (most recent call last):
File
"/home/superset/superset/venv/lib/python3.11/site-packages/superset/utils/json.py",
line 244, in loads
return simplejson.loads(
^^^^^^^^^^^^^^^^^
File
"/home/superset/superset/venv/lib/python3.11/site-packages/simplejson/__init__.py",
line 514, in loads
return _default_decoder.decode(s)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/home/superset/superset/venv/lib/python3.11/site-packages/simplejson/decoder.py",
line 386, in decode
obj, end = self.raw_decode(s)
^^^^^^^^^^^^^^^^^^
File
"/home/superset/superset/venv/lib/python3.11/site-packages/simplejson/decoder.py",
line 416, in raw_decode
return self.scan_once(s, idx=_w(s, idx).end())
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
simplejson.errors.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
2024-09-16 14:48:45,244:ERROR:superset.utils.json:JSON is not valid
Expecting value: line 1 column 1 (char 0)
Traceback (most recent call last):
File
"/home/superset/superset/venv/lib/python3.11/site-packages/superset/utils/json.py",
line 244, in loads
return simplejson.loads(
^^^^^^^^^^^^^^^^^
File
"/home/superset/superset/venv/lib/python3.11/site-packages/simplejson/__init__.py",
line 514, in loads
return _default_decoder.decode(s)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/home/superset/superset/venv/lib/python3.11/site-packages/simplejson/decoder.py",
line 386, in decode
obj, end = self.raw_decode(s)
^^^^^^^^^^^^^^^^^^
File
"/home/superset/superset/venv/lib/python3.11/site-packages/simplejson/decoder.py",
line 416, in raw_decode
return self.scan_once(s, idx=_w(s, idx).end())
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
simplejson.errors.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
```
### How to reproduce the bug
1. Go to Dashboard page
2. Check thumbnails on page
### Screenshots/recordings
### Superset version
master / latest-dev
### Python version
3.11
### Node version
16
### Browser
Chrome
### Additional context
I am using Apache Superset 4.1.0rc2 version :)
### Checklist
- [X] I have searched Superset docs and Slack and didn't find a solution to
my problem.
- [X] I have searched the GitHub issue tracker and didn't find a similar bug
report.
- [X] I have checked Superset's logs for errors and if I found a relevant
Python stacktrace, I included it here as text in the "additional context"
section.
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