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Use the following options to alter Database-related settings.
| Configuration option = Default value | Description |
|---|---|
| [database] | |
| backend = sqlalchemy | (StrOpt) The back end to use for the database. |
| connection = None | (StrOpt) The SQLAlchemy connection string to use to connect to the database. |
| connection_debug = 0 | (IntOpt) Verbosity of SQL debugging information: 0=None, 100=Everything. |
| connection_trace = False | (BoolOpt) Add Python stack traces to SQL as comment strings. |
| db_inc_retry_interval = True | (BoolOpt) If True, increases the interval between database connection retries up to db_max_retry_interval. |
| db_max_retries = 20 | (IntOpt) Maximum database connection retries before error is raised. Set to -1 to specify an infinite retry count. |
| db_max_retry_interval = 10 | (IntOpt) If db_inc_retry_interval is set, the maximum seconds between database connection retries. |
| db_retry_interval = 1 | (IntOpt) Seconds between database connection retries. |
| idle_timeout = 3600 | (IntOpt) Timeout before idle SQL connections are reaped. |
| max_overflow = None | (IntOpt) If set, use this value for max_overflow with SQLAlchemy. |
| max_pool_size = None | (IntOpt) Maximum number of SQL connections to keep open in a pool. |
| max_retries = 10 | (IntOpt) Maximum db connection retries during startup. Set to -1 to specify an infinite retry count. |
| min_pool_size = 1 | (IntOpt) Minimum number of SQL connections to keep open in a pool. |
| mysql_sql_mode = TRADITIONAL | (StrOpt) The SQL mode to be used for MySQL sessions. This option, including the default, overrides any server-set SQL mode. To use whatever SQL mode is set by the server configuration, set this to no value. Example: mysql_sql_mode= |
| pool_timeout = None | (IntOpt) If set, use this value for pool_timeout with SQLAlchemy. |
| retry_interval = 10 | (IntOpt) Interval between retries of opening a SQL connection. |
| slave_connection = None | (StrOpt) The SQLAlchemy connection string to use to connect to the slave database. |
| sqlite_db = oslo.sqlite | (StrOpt) The file name to use with SQLite. |
| sqlite_synchronous = True | (BoolOpt) If True, SQLite uses synchronous mode. |
| use_db_reconnect = False | (BoolOpt) Enable the experimental use of database reconnect on connection lost. |
