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Provide an option that allows WebSphere Liberty database pool to maintain a minNumber of "warm" connections.
The current configuration options that are available in WLP do not allow for maintaining a minPoolSize number of connections in a given connection pool. Any events of connection aging (for example timeouts that can occur on the WLP side as well as on the Database side) will result in removing corresponding connection from the pool but will not proactively re-create a new connection in place of removed one.
This request proposes adding necessary logic to the pool management task that would proactively create new connections in the pool whenever the number of existing connections drops below min threshold.
Similar capability is present in other database pool implementations, for example Tomcat 9.
minIdle (int) The minimum number of established connections that should be kept in the pool at all times. The connection pool can shrink below this number if validation queries fail. Default value is derived from initialSize:10 (also see testWhileIdle)[
Wait for application startup until datasources are ready.
Currently, the app is started as fast as possible. Datasource connections are initialized on first use. However, some applications need to use db connections right away. For this, each connection pool should have at least one connection ready when...
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