18.4. Pool Filling

The number of connections in the pool is controlled by the pool sizes.

<min-pool-size/> - When the number of connections falls below this size, new connections are created
<max-pool-size/> - No more than this number of connections are created
<prefill/> - Feature Request has been implemented for 4.0.5.

The pool filling is done by a separate "Pool Filler" thread rather than blocking application threads.

Important

Connection pools are filled to their min-pool-size only on their first usage.

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