ConnectionPoolConfigurationInfo¶
Structure Class¶
dataclass
¶
Bases: _SerdeShape
Displays the settings that control the size and behavior of the
connection pool associated with a DBProxyTarget.
Attributes¶
class-attribute
instance-attribute
¶
connection_borrow_timeout: int | None = ...
The number of seconds for a proxy to wait for a connection to become available in the connection pool. Only applies when the proxy has opened its maximum number of connections and all connections are busy with client sessions.
class-attribute
instance-attribute
¶
init_query: str | None = ...
One or more SQL statements for the proxy to run when opening each new
database connection. The setting is typically used with SET statements
to make sure that each connection has identical settings. The query
added here must be valid. For including multiple variables in a single
SET statement, use a comma separator. This is an optional field.
For example: SET variable1=value1, variable2=value2
Warning
Since you can access initialization query as part of target group configuration, it is not protected by authentication or cryptographic methods. Anyone with access to view or manage your proxy target group configuration can view the initialization query. You should not add sensitive data, such as passwords or long-lived encryption keys, to this option.
class-attribute
instance-attribute
¶
max_connections_percent: int | None = ...
The maximum size of the connection pool for each target in a target
group. The value is expressed as a percentage of the max_connections
setting for the RDS DB instance or Aurora DB cluster used by the target
group.
class-attribute
instance-attribute
¶
max_idle_connections_percent: int | None = ...
Controls how actively the proxy closes idle database connections in the
connection pool. The value is expressed as a percentage of the
max_connections setting for the RDS DB instance or Aurora DB cluster
used by the target group. With a high value, the proxy leaves a high
percentage of idle database connections open. A low value causes the
proxy to close more idle connections and return them to the database.
class-attribute
instance-attribute
¶
Each item in the list represents a class of SQL operations that normally
cause all later statements in a session using a proxy to be pinned to
the same underlying database connection. Including an item in the list
exempts that class of SQL operations from the pinning behavior. This
setting is only supported for MySQL engine family databases. Currently,
the only allowed value is EXCLUDE_VARIABLE_SETS.