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c2b770bcb9
* Load pending state attributes and event data ids at startup Since we queue all events to be processed after startup we can have a thundering herd of queries to prime the LRUs of event data and state attributes ids. Since we know we are about to process a chunk of events we can fetch all the ids in two queries * lru * fix hang * Fix recorder LRU being destroyed if event session is reopened We would clear the LRU in _close_event_session but it would never get replaced with an LRU again so it would leak memory if the event session is reopened * Fix recorder LRU being destroyed if event session is reopened We would clear the LRU in _close_event_session but it would never get replaced with an LRU again so it would leak memory if the event session is reopened * cleanup
52 lines
1.5 KiB
Python
52 lines
1.5 KiB
Python
"""Recorder constants."""
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from homeassistant.backports.enum import StrEnum
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from homeassistant.const import ATTR_ATTRIBUTION, ATTR_RESTORED, ATTR_SUPPORTED_FEATURES
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from homeassistant.helpers.json import ( # noqa: F401 pylint: disable=unused-import
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JSON_DUMP,
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)
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DATA_INSTANCE = "recorder_instance"
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SQLITE_URL_PREFIX = "sqlite://"
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MARIADB_URL_PREFIX = "mariadb://"
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MARIADB_PYMYSQL_URL_PREFIX = "mariadb+pymysql://"
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MYSQLDB_URL_PREFIX = "mysql://"
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MYSQLDB_PYMYSQL_URL_PREFIX = "mysql+pymysql://"
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DOMAIN = "recorder"
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EVENT_RECORDER_5MIN_STATISTICS_GENERATED = "recorder_5min_statistics_generated"
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EVENT_RECORDER_HOURLY_STATISTICS_GENERATED = "recorder_hourly_statistics_generated"
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CONF_DB_INTEGRITY_CHECK = "db_integrity_check"
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MAX_QUEUE_BACKLOG = 65000
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# The maximum number of rows (events) we purge in one delete statement
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# sqlite3 has a limit of 999 until version 3.32.0
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# in https://github.com/sqlite/sqlite/commit/efdba1a8b3c6c967e7fae9c1989c40d420ce64cc
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# We can increase this back to 1000 once most
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# have upgraded their sqlite version
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SQLITE_MAX_BIND_VARS = 998
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DB_WORKER_PREFIX = "DbWorker"
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ALL_DOMAIN_EXCLUDE_ATTRS = {ATTR_ATTRIBUTION, ATTR_RESTORED, ATTR_SUPPORTED_FEATURES}
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ATTR_KEEP_DAYS = "keep_days"
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ATTR_REPACK = "repack"
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ATTR_APPLY_FILTER = "apply_filter"
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KEEPALIVE_TIME = 30
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EXCLUDE_ATTRIBUTES = f"{DOMAIN}_exclude_attributes_by_domain"
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class SupportedDialect(StrEnum):
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"""Supported dialects."""
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SQLITE = "sqlite"
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MYSQL = "mysql"
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POSTGRESQL = "postgresql"
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