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Posted to notifications@superset.apache.org by "l-e-s (via GitHub)" <gi...@apache.org> on 2026/07/15 13:55:12 UTC
[I] SQL Lab: get oracle schema structure: HTTP 422 [superset]
l-e-s opened a new issue, #42085:
URL: https://github.com/apache/superset/issues/42085
### Bug description
SQL Lab does not show structure of oracle tables if (edit database - Advanced - Performance) Schema cache timeout and Table cache timeout fields are empty. Instead, an error appears in superset-app container log:
```
"GET /api/v1/database/4/tables/?q=(force:!t,schema_name:<...>) HTTP/1.1" 422 <...>
2026-07-13 21:48:44,457:WARNING:superset.utils.log:value is not an integer or out of range
Traceback (most recent call last):
File "/app/superset/commands/database/tables.py", line 70, in run
for datasource_name in self._model.get_all_table_names_in_schema(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/app/superset/utils/cache.py", line 162, in wrapped_f
cache.set(cache_key, obj, timeout=cache_timeout)
File "/app/.venv/lib/python3.11/site-packages/flask_caching/__init__.py", line 203, in set
return self.cache.set(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/app/.venv/lib/python3.11/site-packages/cachelib/redis.py", line 96, in set
result = self._write_client.setex(
^^^^^^^^^^^^^^^^^^^^^^^^^
File "/app/.venv/lib/python3.11/site-packages/redis/commands/core.py", line 2360, in setex
return self.execute_command("SETEX", name, time, value)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
```
Tested on Superset 6.0.0, 6.1.0, latest (commit 3dd5e69714fe295ab979b9d58071ed7b640053c0), all are compiled from source with oracle support, running in docker.
requirements-local.txt: oracledb, authlib, sqlglot==30.8.0
### Screenshots/recordings
_No response_
### Superset version
master / latest-dev
### Python version
3.11
### Node version
I don't know
### Browser
Chrome
### Additional context
Oracle instantclient-basic-linux.x64-23.4.0.24.05 also installed
### 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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Re: [I] SQL Lab: get oracle schema structure: HTTP 422 [superset]
Posted by "sadpandajoe (via GitHub)" <gi...@apache.org>.
sadpandajoe commented on issue #42085:
URL: https://github.com/apache/superset/issues/42085#issuecomment-4994568982
@l-e-s feel free to open up a PR for what dosu is suggesting or try the workaround it suggested.
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Re: [I] SQL Lab: get oracle schema structure: HTTP 422 [superset]
Posted by "dosubot[bot] (via GitHub)" <gi...@apache.org>.
dosubot[bot] commented on issue #42085:
URL: https://github.com/apache/superset/issues/42085#issuecomment-4982562041
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<!-- Answer -->
Hi @l-e-s! I'm [Dosu](https://go.dosu.dev/dosubot) and I'm helping the Apache Superset team.
This is a legitimate bug caused by an inconsistency in how `None` cache timeouts are handled in the `memoized_func` decorator in `superset/utils/cache.py`.
**What's happening:** When you leave the Schema/Table cache timeout fields empty, the `table_cache_timeout` property on the Database model returns `None` [[1]](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset/models/core.py#L351-L352). This `None` is explicitly passed as `cache_timeout=None` to `get_all_table_names_in_schema` [[2]](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset/commands/database/tables.py#L72-L73). Inside the `memoized_func` decorator, `kwargs.pop("cache_timeout", app.config["CACHE_DEFAULT_TIMEOUT"])` sees the key **exists** (with value `None`) and uses `None` instead of falling back to `CACHE_DEFAULT_TIMEOUT` [[3]](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset/utils/cache.py#L124-L126). Redis's `setex` then rejects `None` as a timeout value, causing the 422.
Interestingly, the `set_and_log_cache` function in the same file already handles this correctly with an explicit `None` check [[4]](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset/utils/cache.py#L59-L63):
```python
timeout = (
cache_timeout
if cache_timeout is not None
else app.config["CACHE_DEFAULT_TIMEOUT"]
)
```
**Fix:** The most robust fix would be to apply the same pattern in the `memoized_func` decorator (`superset/utils/cache.py` around line 124):
```python
cache_timeout = kwargs.pop("cache_timeout", None)
cache_timeout = (
cache_timeout
if cache_timeout is not None
else app.config["CACHE_DEFAULT_TIMEOUT"]
)
```
This ensures that when cache timeout is `None` (empty), it falls back to the global default (86,400 seconds) rather than passing `None` to Redis.
**Workaround:** In the meantime, setting an explicit value (e.g., `86400`) in the Schema cache timeout and Table cache timeout fields in the database Advanced > Performance settings should resolve the error.
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Re: [I] SQL Lab: get oracle schema structure: HTTP 422 [superset]
Posted by "rusackas (via GitHub)" <gi...@apache.org>.
rusackas closed issue #42085: SQL Lab: get oracle schema structure: HTTP 422
URL: https://github.com/apache/superset/issues/42085
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