/AWS1/CL_RDSCONNPOOLCONFINFO

Displays the settings that control the size and behavior of the connection pool associated with a DBProxyTarget.

CONSTRUCTOR

IMPORTING

Optional arguments:

iv_maxconnectionspercent TYPE /AWS1/RDSINTEGER /AWS1/RDSINTEGER

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.

iv_maxidleconnectionspercent TYPE /AWS1/RDSINTEGER /AWS1/RDSINTEGER

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.

iv_connectionborrowtimeout TYPE /AWS1/RDSINTEGER /AWS1/RDSINTEGER

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.

it_sessionpinningfilters TYPE /AWS1/CL_RDSSTRINGLIST_W=>TT_STRINGLIST TT_STRINGLIST

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.

iv_initquery TYPE /AWS1/RDSSTRING /AWS1/RDSSTRING

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

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.

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Queryable Attributes

MaxConnectionsPercent

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.

Accessible with the following methods

Method	Description
GET_MAXCONNECTIONSPERCENT()	Getter for MAXCONNECTIONSPERCENT, with configurable default
ASK_MAXCONNECTIONSPERCENT()	Getter for MAXCONNECTIONSPERCENT w/ exceptions if field has
HAS_MAXCONNECTIONSPERCENT()	Determine if MAXCONNECTIONSPERCENT has a value

MaxIdleConnectionsPercent

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.

Accessible with the following methods

Method	Description
GET_MAXIDLECONNSPERCENT()	Getter for MAXIDLECONNECTIONSPERCENT, with configurable defa
ASK_MAXIDLECONNSPERCENT()	Getter for MAXIDLECONNECTIONSPERCENT w/ exceptions if field
HAS_MAXIDLECONNSPERCENT()	Determine if MAXIDLECONNECTIONSPERCENT has a value

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.

Accessible with the following methods

Method	Description
GET_CONNECTIONBORROWTIMEOUT()	Getter for CONNECTIONBORROWTIMEOUT, with configurable defaul
ASK_CONNECTIONBORROWTIMEOUT()	Getter for CONNECTIONBORROWTIMEOUT w/ exceptions if field ha
HAS_CONNECTIONBORROWTIMEOUT()	Determine if CONNECTIONBORROWTIMEOUT has a value

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. This setting is only supported for MySQL engine family databases. Currently, the only allowed value is EXCLUDE_VARIABLE_SETS.

Accessible with the following methods

Method	Description
GET_SESSIONPINNINGFILTERS()	Getter for SESSIONPINNINGFILTERS, with configurable default
ASK_SESSIONPINNINGFILTERS()	Getter for SESSIONPINNINGFILTERS w/ exceptions if field has
HAS_SESSIONPINNINGFILTERS()	Determine if SESSIONPINNINGFILTERS has a value

InitQuery

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

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.

Accessible with the following methods

Method	Description
GET_INITQUERY()	Getter for INITQUERY, with configurable default
ASK_INITQUERY()	Getter for INITQUERY w/ exceptions if field has no value
HAS_INITQUERY()	Determine if INITQUERY has a value