* Use ciso8601 for parsing MySQLDB datetimes
The default parser is this:
5340191feb/MySQLdb/times.py (L66)
* tweak
* tweak
* add coverage for building the MySQLdb connect conv param
* Avoid locking the database for non-SQLite backends
Currently we only have a lock implementation for SQLite. Just return
success for all other databases as they are not expected to store data
in the config directory and the caller can assume that a backup can
be safely taken.
This fixes `RuntimeError: generator didn't yield` errors when creating
a backup with the current Supervisor dev builds.
* Allow to set CONF_DB_URL
This is useful for test which need a custom DB path.
* Introduce write_lock_db helper to lock SQLite database
* Introduce Websocket API which allows to lock database during backup
* Fix isort
* Avoid mutable default arguments
* Address pylint issues
* Avoid holding executor thread
* Set unlock event in case timeout occures
This makes sure the database is left unlocked even in case of a race
condition.
* Add more unit tests
* Address new pylint errors
* Lower timeout to speedup tests
* Introduce queue overflow test
* Unlock database if necessary
This makes sure that the test runs through in case locking actually
succeeds (and the test fails).
* Make DB_LOCK_TIMEOUT a global
There is no good reason for this to be an argument. The recorder needs
to pick a sensible value.
* Add Websocket Timeout test
* Test lock_database() return
* Update homeassistant/components/recorder/__init__.py
Co-authored-by: Erik Montnemery <erik@montnemery.com>
* Fix format
Co-authored-by: J. Nick Koston <nick@koston.org>
Co-authored-by: Erik Montnemery <erik@montnemery.com>
* Add WS API for removing statistics for a list of statistic_ids
* Refactor according to code review, enable foreign keys support for sqlite
* Adjust tests
* Move clear_statistics WS API to recorder
* Adjust tests after rebase
* Update docstring
* Update homeassistant/components/recorder/websocket_api.py
Co-authored-by: Paulus Schoutsen <paulus@home-assistant.io>
* Adjust tests after rebase
Co-authored-by: Paulus Schoutsen <paulus@home-assistant.io>
* Improve history api performance
A new option "minimal_response" reduces the amount of data
sent between the first and last history states to only the
"last_changed" and "state" fields.
Calling to_native is now avoided where possible and only
done at the end for rows that will be returned in the response.
When sending the `minimal_response` option, the history
api now returns a json response similar to the following
for an entity
Testing:
History API Response time for 1 day
Average of 10 runs with minimal_response
Before: 19.89s. (content length : 3427428)
After: 8.44s (content length: 592199)
```
[{
"attributes": {--TRUNCATED--},
"context": {--TRUNCATED--},
"entity_id": "binary_sensor.powerwall_status",
"last_changed": "2020-05-18T23:20:03.213000+00:00",
"last_updated": "2020-05-18T23:20:03.213000+00:00",
"state": "on"
},
...
{
"last_changed": "2020-05-19T00:41:08Z",
"state": "unavailable"
},
...
{
"attributes": {--TRUNCATED--},
"context": {--TRUNCATED--},
"entity_id": "binary_sensor.powerwall_status",
"last_changed": "2020-05-19T00:42:08.069698+00:00",
"last_updated": "2020-05-19T00:42:08.069698+00:00",
"state": "on"
}]
```
* Remove impossible state check
* Remove another impossible state check
* Update homeassistant/components/history/__init__.py
Co-authored-by: Paulus Schoutsen <paulus@home-assistant.io>
* Reorder to save some indent per review
* Make query response make sense with to_native=False
* Update test for 00:00 to Z change
* Update homeassistant/components/recorder/models.py
Co-authored-by: Paulus Schoutsen <paulus@home-assistant.io>
Co-authored-by: Paulus Schoutsen <paulus@home-assistant.io>
* move imports to top-level in recorder init
* move imports to top-level in recorder migration
* move imports to top-level in recorder models
* move imports to top-level in recorder purge
* move imports to top-level in recorder util
* fix pylint
