Sun Microsystems Sun Adapter IP HL 7 - Manual (Page 96)

TABLE 56 Environment - HL7 Outbound Adapter - Connection Pool Settings
Name Description
Steady Pool Size An integer indicating the minimum number of resource adapter connections to
be maintained. When the value is set to a number greater than 0 (zero), the
container pre-populates the RA connection pool with the specified number and
tries to ensure that there are always this many connections in the free pool. This
ensures that there are enough connections in the ready-to-serve state to process
user requests.
This property does not necessarily guarantee that no more than steady-pool-size
instances exist at a given time. It only governs the number of instances that are
pooled over a long period of time. For example, if an idle stateless session
container has a fully-populated pool with a steady-pool-size of 10 and 20
concurrent requests arrive for the resource adapter connection component, the
container creates 10 additional instances to satisfy the burst of requests. The
advantage of this is that it prevents the container from blocking any of the
incoming requests. However, if the activity is reduced to 10 or fewer concurrent
requests, the additional 10 instances are discarded.
Max Pool Size An integer indicating the maximum number of resource adapter connections in
the pool. A value of 0 (zero) indicates that the pool is unbounded.
Pool Idle Timeout in
Seconds The maximum amount of time (in seconds) that a resource adapter connection
instance can remain idle in the pool. When a connection has exceeded the
configured timeout, a timer thread removes the unused connection. This
property defines the interval at which this thread runs.
A value greater than 0 (zero) indicates that the container removes or destroys any
resource adapter connection instance that is idle at this specified duration. A
value of 0 (zero) specifies that idle connections can remain in the pool
indefinitely.
HL7 Outbound Adapter - Sequence Number Protocol
The following table lists and describes the property that appears on the Sequence Number
Protocol page of the Properties Editor accessed from the Environment. Sequence numbering
helps prevent duplication of data.
Configuring Sun Adapter for TCP/IP HL7 Environment Properties
Sun Adapter for TCP/IP HL7 User's Guide • October 2009 96