mik-laj opened a new pull request #9001:
URL: https://github.com/apache/airflow/pull/9001
A small command that makes it easier to troubleshoot plugins.
```
[2020-05-24 22:02:21,845] {plugins_manager.py:224} DEBUG - Loading plugins
[2020-05-24 22:02:21,845] {plugins_manager.py:164} DEBUG - Loading plugins
from directory: /opt/airflow/airflow/contrib/plugins
[2020-05-24 22:02:21,857] {plugins_manager.py:178} DEBUG - Importing plugin
module /opt/airflow/airflow/contrib/plugins/metastore_browser/main.py
/opt/airflow/airflow/contrib/plugins/metastore_browser/main.py:45:
FutureWarning: Passing a negative integer is deprecated in version 1.0 and will
not be supported in future version. Instead, use None to not limit the column
width.
pd.set_option('display.max_colwidth', -1)
[2020-05-24 22:02:22,476] {plugins_manager.py:143} DEBUG - Loading plugins
from entrypoints
[2020-05-24 22:02:22,508] {plugins_manager.py:218} DEBUG - Plugins are
already loaded. Skipping.
[2020-05-24 22:02:22,508] {plugins_manager.py:362} DEBUG - Integrate DAG
plugins
[2020-05-24 22:02:22,510] {plugins_manager.py:199} DEBUG - Creating module
airflow.operators.metastore_browser
[2020-05-24 22:02:22,513] {plugins_manager.py:199} DEBUG - Creating module
airflow.sensors.metastore_browser
[2020-05-24 22:02:22,513] {plugins_manager.py:199} DEBUG - Creating module
airflow.hooks.metastore_browser
[2020-05-24 22:02:22,514] {plugins_manager.py:199} DEBUG - Creating module
airflow.macros.metastore_browser
[2020-05-24 22:02:22,514] {plugins_manager.py:218} DEBUG - Plugins are
already loaded. Skipping.
[2020-05-24 22:02:22,515] {plugins_manager.py:325} DEBUG - Integrate
executor plugins
[2020-05-24 22:02:22,516] {plugins_manager.py:199} DEBUG - Creating module
airflow.executors.metastore_browser
[2020-05-24 22:02:22,517] {plugins_manager.py:218} DEBUG - Plugins are
already loaded. Skipping.
[2020-05-24 22:02:22,518] {plugins_manager.py:293} DEBUG - Initialize extra
operators links plugins
[2020-05-24 22:02:22,518] {plugins_manager.py:218} DEBUG - Plugins are
already loaded. Skipping.
[2020-05-24 22:02:22,519] {plugins_manager.py:256} DEBUG - Initialize Web UI
plugin
########################################## PLUGINS MANGER:
##########################################
plugins = [<class 'main.MetastoreBrowserPlugin'>]
import_errors = {}
operators_modules = [<module 'airflow.operators.metastore_browser'>]
sensors_modules = [<module 'airflow.sensors.metastore_browser'>]
hooks_modules = [<module 'airflow.hooks.metastore_browser'>]
macros_modules = [<module 'airflow.macros.metastore_browser'>]
executors_modules = [<module 'airflow.executors.metastore_browser'>]
admin_views = []
flask_blueprints = [{'blueprint': <flask.blueprints.Blueprint object at
0x7f2c9b7f70f0>,
'name': 'metastore_browser'}]
menu_links = []
flask_appbuilder_views = [{'category': 'Plugins',
'name': 'Hive Metadata Browser',
'view': <main.MetastoreBrowserView object at 0x7f2c888620b8>}]
flask_appbuilder_menu_links = []
global_operator_extra_links = []
operator_extra_links = []
registered_operator_link_classes = {}
############################################## PLUGINS:
#############################################
Loaded 1 plugins
======================================== 0 metastore_browser
========================================
operators = []
sensors = []
hooks = []
executors = []
macros = []
admin_views = []
flask_blueprints = [<flask.blueprints.Blueprint object at 0x7f2c9b7f70f0>]
menu_links = []
appbuilder_views = [{'category': 'Plugins',
'name': 'Hive Metadata Browser',
'view': <main.MetastoreBrowserView object at 0x7f2c888620b8>}]
appbuilder_menu_items = []
global_operator_extra_links = []
operator_extra_links = []
```
---
Make sure to mark the boxes below before creating PR: [x]
- [ ] Description above provides context of the change
- [ ] Unit tests coverage for changes (not needed for documentation changes)
- [ ] Target Github ISSUE in description if exists
- [ ] Commits follow "[How to write a good git commit
message](http://chris.beams.io/posts/git-commit/)"
- [ ] Relevant documentation is updated including usage instructions.
- [ ] I will engage committers as explained in [Contribution Workflow
Example](https://github.com/apache/airflow/blob/master/CONTRIBUTING.rst#contribution-workflow-example).
---
In case of fundamental code change, Airflow Improvement Proposal
([AIP](https://cwiki.apache.org/confluence/display/AIRFLOW/Airflow+Improvements+Proposals))
is needed.
In case of a new dependency, check compliance with the [ASF 3rd Party
License Policy](https://www.apache.org/legal/resolved.html#category-x).
In case of backwards incompatible changes please leave a note in
[UPDATING.md](https://github.com/apache/airflow/blob/master/UPDATING.md).
Read the [Pull Request
Guidelines](https://github.com/apache/airflow/blob/master/CONTRIBUTING.rst#pull-request-guidelines)
for more information.
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