I’d be interested to hear about your progress with this. We use Datadog for server / container metrics but haven’t yet tried the Java agent.
This may not be particularly helpful, but out of curiosity have you tried the jTDS MSSQL driver?
The MS SQL driver is in an extension (OSGi ) so I guess it’s possible that it can’t see the opentracing packages. Can you also try copying the JAR into /usr/local/tomcat/lib/ to see if that helps? Otherwise I’m not sure, might need some input from @micstriit 