Check out example codes for "Error: com.mysql.cj.jdbc.Driver not loaded. Are you sure you've included the correct jdbc driver in :jdbc_driver_library?". It will help you in understanding the concepts better.

Code Example 1

for logstash 6.2.x and above, prefer adding the drivers under:


and rather keep the jdbc_driver_library empty.
This has been quoted in many of the forums too.

Code Example 2

You might be using mysql-connector-java_5.1.45,
and specifying "com.mysql.cj.jdbc.Driver" as the driver class.
You should use either mysql-connector-java_8.0.21, or use the old
driver class "com.mysql.jdbc.Driver"

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