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Please move external libs to this folder only when you need JVM runtime extension, for example:

ojdbc8-21.5.0.0.jar
orai18n-21.5.0.0.jar
mysql-connector-java-8.0.30.jar
jcc-11.5.9.0.jar

Note:

- `ext-lib` is loaded by the JVM server package and the JVM collector package.
- MySQL, MariaDB, OceanBase, and TiDB SQL query metrics can use the built-in MySQL-compatible query engine without `mysql-connector-j`.
- If `mysql-connector-j` is present here, the JVM server package or JVM collector package prefers JDBC after restart.
- The native collector package does not support loading external JDBC driver jars from `ext-lib` at runtime.
- If you need Oracle or DB2 monitoring, or you explicitly want the JDBC path for MySQL-compatible monitoring, use the JVM collector package.
