Sun Java System Application Server Enterprise Edition 8.1 2005Q2 Administration Guide

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## To edit a connector connection pool

1. In the tree component, expand the Resources node and then the Connectors node.

2. Expand the Connector Connection Pools node.

3. Select the node for the pool you want to edit.

4. On the Edit Connector Connection Pool page, you can change settings that control the number of connections in the pool. See the following table.

   Parameter | Description
   --- | ---
   Initial and Minimum Pool Size | The minimum number of connections in the pool. This value also determines the number of connections placed in the pool when the pool is first created or when application server starts.
   Maximum Pool Size | The maximum number of connections in the pool.
   Pool Resize Quantity | When the pool shrinks toward the minimum pool size it is resized in batches. This value determines the number of connections in the batch. Making this value too large will delay connection recycling; making it too small will be less efficient.
   Idle Timeout | The maximum time in seconds that a connection can remain idle in the pool. After this time expires, the connection will be removed from the pool.
   Max Wait Time | The amount of time the application that has requested a connection will wait before getting a connection timeout. Because the default wait time is long, the application might appear to hang indefinitely.
   On Any Failure | If you select the checkbox labelled Close All Connections, if a single connection fails, then the application server will close all connections in the pool and then reestablish them. If you do not select the checkbox, then individual connections will be reestablished only when they are used.
   Transaction Support | Use the Transaction Support list to select the type of transaction support for the connection pool. The chosen transaction support overrides the transaction support attribute in the resource adapter associated with this connection pool in a downward compatible way. In other words, it can support a lower transaction level than that specified in the resource adapter or the same transaction level as that specified in resource adapter, but it cannot specify a higher level. The transaction support options include the following. The None selection from the Transaction Support menu indicates that the resource adapter does not support resource manager local or JTA transactions and does not implement `XAResource` or `LocalTransaction` interfaces. Local transaction support means that the resource adapter supports local transactions by implementing the `LocalTransaction` interface. Local transactions are managed internal to a resource manager and involve no external transaction managers. XA transaction support means that the resource adapter supports resource manager local and JTA transactions by implementing the `LocalTransaction` and `XAResource` interfaces. XA transactions are controlled and coordinated by a transaction manager external to a resource manager. Local transactions are managed internal to a resource manager and involve no external transaction managers.

5. In the Additional Properties table, specify name-value pairs.

   The properties specified depend on the resource adapter used by this pool. The name-value pairs specified by the deployer using this table can be used to override the default values for the properties defined by the resource-adapter vendor.

6. On the Security Maps tabbed pane, create or modify a security map for the connection pool.

   See About Security Maps for information on how to create a security map.

7. Click Save.

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