How to deal with not releasing JDBC connections when they are full.
If the JDBC connections are full and not released, the following options can be taken:
- Check if the code correctly releases JDBC connections: Make sure to call the close() method in a timely manner after using the JDBC connection to release the connection resources.
- Increasing the size of the connection pool: By increasing the maximum number of connections in the pool, more connection resources can be provided to meet concurrent demands. The size of the connection pool can be adjusted based on actual needs to prevent it from becoming full.
- Utilizing a connection pool’s mechanism for reclaiming idle connections: Connection pools typically have a configuration option to set the strategy for reclaiming idle connections, based on either the time or number of times a connection has been idle. This ensures that connections that have not been used for a long time can be released promptly, preventing the issue of the connection pool becoming full and not releasing connections.
- Checking database configuration: Improper database configuration may result in connections in the connection pool not being released. For example, if the maximum connection number is set too low or the database connection timeout is too long. It is recommended to review and adjust the database configurations accordingly to meet the requirements.
- By using a connection timeout mechanism, a JDBC connection can be obtained with a specified timeout period. If the connection cannot be acquired within this timeframe, appropriate actions can be taken, such as throwing an exception or returning an error message.
By using the above method, the issue of JDBC connections not being released after reaching full capacity can be effectively addressed, leading to improved stability and performance of the system.
