I have deployed microservice which is pointing to mysql database and monitored it using dynatrace oneagent , I have tried monitoring database connection pool usage which I was not able to whereas I can see individual database performance metrics.Can you point me how to monitor database connection pool usage at applcation layer.
I'm not sure what technology you are utilizing for your database solution, but I would recommend looking into Dynatrace plugins. These can pull metrics such as connection pool usage.
It is possible that a plugin already exists that would meet your need, but I can't say for certain at this time.
Check these links for more information: