Copyright | (c) 2013-2021 Brendan Hay |
---|---|
License | Mozilla Public License, v. 2.0. |
Maintainer | Brendan Hay <brendan.g.hay+amazonka@gmail.com> |
Stability | auto-generated |
Portability | non-portable (GHC extensions) |
Safe Haskell | None |
Synopsis
- data ConnectionPoolConfiguration = ConnectionPoolConfiguration' {}
- newConnectionPoolConfiguration :: ConnectionPoolConfiguration
- connectionPoolConfiguration_maxIdleConnectionsPercent :: Lens' ConnectionPoolConfiguration (Maybe Int)
- connectionPoolConfiguration_sessionPinningFilters :: Lens' ConnectionPoolConfiguration (Maybe [Text])
- connectionPoolConfiguration_maxConnectionsPercent :: Lens' ConnectionPoolConfiguration (Maybe Int)
- connectionPoolConfiguration_connectionBorrowTimeout :: Lens' ConnectionPoolConfiguration (Maybe Int)
- connectionPoolConfiguration_initQuery :: Lens' ConnectionPoolConfiguration (Maybe Text)
Documentation
data ConnectionPoolConfiguration Source #
Specifies the settings that control the size and behavior of the
connection pool associated with a DBProxyTargetGroup
.
See: newConnectionPoolConfiguration
smart constructor.
ConnectionPoolConfiguration' | |
|
Instances
newConnectionPoolConfiguration :: ConnectionPoolConfiguration Source #
Create a value of ConnectionPoolConfiguration
with all optional fields omitted.
Use generic-lens or optics to modify other optional fields.
The following record fields are available, with the corresponding lenses provided for backwards compatibility:
$sel:maxIdleConnectionsPercent:ConnectionPoolConfiguration'
, connectionPoolConfiguration_maxIdleConnectionsPercent
- Controls how actively the proxy closes idle database connections in the
connection pool. A high value enables the proxy to leave a high
percentage of idle connections open. A low value causes the proxy to
close idle client connections and return the underlying database
connections to the connection pool. For Aurora MySQL, it is expressed as
a percentage of the max_connections
setting for the RDS DB instance or
Aurora DB cluster used by the target group.
Default: 50
Constraints: between 0 and MaxConnectionsPercent
$sel:sessionPinningFilters:ConnectionPoolConfiguration'
, connectionPoolConfiguration_sessionPinningFilters
- 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.
Default: no session pinning filters
$sel:maxConnectionsPercent:ConnectionPoolConfiguration'
, connectionPoolConfiguration_maxConnectionsPercent
- The maximum size of the connection pool for each target in a target
group. For Aurora MySQL, it is expressed as a percentage of the
max_connections
setting for the RDS DB instance or Aurora DB cluster
used by the target group.
Default: 100
Constraints: between 1 and 100
$sel:connectionBorrowTimeout:ConnectionPoolConfiguration'
, connectionPoolConfiguration_connectionBorrowTimeout
- 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.
Default: 120
Constraints: between 1 and 3600, or 0 representing unlimited
$sel:initQuery:ConnectionPoolConfiguration'
, connectionPoolConfiguration_initQuery
- One or more SQL statements for the proxy to run when opening each new
database connection. Typically used with SET
statements to make sure
that each connection has identical settings such as time zone and
character set. For multiple statements, use semicolons as the separator.
You can also include multiple variables in a single SET
statement,
such as SET x=1, y=2
.
Default: no initialization query
connectionPoolConfiguration_maxIdleConnectionsPercent :: Lens' ConnectionPoolConfiguration (Maybe Int) Source #
Controls how actively the proxy closes idle database connections in the
connection pool. A high value enables the proxy to leave a high
percentage of idle connections open. A low value causes the proxy to
close idle client connections and return the underlying database
connections to the connection pool. For Aurora MySQL, it is expressed as
a percentage of the max_connections
setting for the RDS DB instance or
Aurora DB cluster used by the target group.
Default: 50
Constraints: between 0 and MaxConnectionsPercent
connectionPoolConfiguration_sessionPinningFilters :: Lens' ConnectionPoolConfiguration (Maybe [Text]) Source #
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.
Default: no session pinning filters
connectionPoolConfiguration_maxConnectionsPercent :: Lens' ConnectionPoolConfiguration (Maybe Int) Source #
The maximum size of the connection pool for each target in a target
group. For Aurora MySQL, it is expressed as a percentage of the
max_connections
setting for the RDS DB instance or Aurora DB cluster
used by the target group.
Default: 100
Constraints: between 1 and 100
connectionPoolConfiguration_connectionBorrowTimeout :: Lens' ConnectionPoolConfiguration (Maybe Int) Source #
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.
Default: 120
Constraints: between 1 and 3600, or 0 representing unlimited
connectionPoolConfiguration_initQuery :: Lens' ConnectionPoolConfiguration (Maybe Text) Source #
One or more SQL statements for the proxy to run when opening each new
database connection. Typically used with SET
statements to make sure
that each connection has identical settings such as time zone and
character set. For multiple statements, use semicolons as the separator.
You can also include multiple variables in a single SET
statement,
such as SET x=1, y=2
.
Default: no initialization query