# Ignition - Database connection pool

**URL:** <https://forum.inductiveautomation.com/t/ignition-database-connection-pool/51880>\
**Category:** Ignition\
**Created:** [October 13, 2021, 1:50am UTC](https://forum.inductiveautomation.com/t/ignition-database-connection-pool/51880 "2021-10-13T01:50:18Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![harigubbi](https://avatars.discourse-cdn.com/v4/letter/h/d6d6ee/32.png) [@harigubbi](https://forum.inductiveautomation.com/u/harigubbi)\
**Post date:** [October 13, 2021, 1:50am UTC](https://forum.inductiveautomation.com/t/ignition-database-connection-pool/51880/1 "2021-10-13T01:50:19Z")

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I have configured a database connection to the SQL database for historical data logging. Even though, there is 20 connections available in the pool for this connection, i notice that only one connection is used at any time. However, the local cache keeps filling up. Yesterday it was 30% full and now it around 70% full. Even though connections to the database are available, Store and forward component is not using it. How to force Store/forward component using multiple connections from the pool and clear the cache

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [October 13, 2021, 2:42pm UTC](https://forum.inductiveautomation.com/t/ignition-database-connection-pool/51880/2 "2021-10-13T14:42:42Z")

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Could be a bug. Could be a limitation in the JDBC driver. Could be a configuration mistake. You haven’t provided nearly enough information to tell. So:

- What DB brand and version?
- What JDBC driver version?
- What Ignition version?
- Are there errors in the wrapper log that look relevant?
- Can you show us the connection pool settings?

If urgent, consider opening a support ticket and having them look over your shoulder.