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Add comment motivating magic number for MySQL error codes (#133516)

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* Add comment motivating magic number for MySQL error codes

* Pick nits
This commit is contained in:
Erik Montnemery 2024-12-19 09:56:32 +01:00 committed by GitHub
parent 893f605d61
commit c8480627ca
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2 changed files with 3 additions and 1 deletions
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2
homeassistant/components/recorder/migration.py
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@ -175,7 +175,7 @@ def _unindexable_legacy_column(
) -> bool: ) -> bool:
"""Ignore index errors on char(0) columns.""" """Ignore index errors on char(0) columns."""
# The error code is hard coded because the PyMySQL library may not be # The error code is hard coded because the PyMySQL library may not be
# installed when using other database engines than MySQL or MariaDB. # installed when using database engines other than MySQL or MariaDB.
# 1167: The used storage engine can't index column '%s' # 1167: The used storage engine can't index column '%s'
return bool( return bool(
base == LegacyBase base == LegacyBase

2
homeassistant/components/recorder/util.py
View File

@ -107,6 +107,8 @@ MAX_RESTART_TIME = timedelta(minutes=10)
# Retry when one of the following MySQL errors occurred: # Retry when one of the following MySQL errors occurred:
RETRYABLE_MYSQL_ERRORS = (1205, 1206, 1213) RETRYABLE_MYSQL_ERRORS = (1205, 1206, 1213)
# The error codes are hard coded because the PyMySQL library may not be
# installed when using database engines other than MySQL or MariaDB.
# 1205: Lock wait timeout exceeded; try restarting transaction # 1205: Lock wait timeout exceeded; try restarting transaction
# 1206: The total number of locks exceeds the lock table size # 1206: The total number of locks exceeds the lock table size
# 1213: Deadlock found when trying to get lock; try restarting transaction # 1213: Deadlock found when trying to get lock; try restarting transaction