1. A method, in a data processing system, for performing a health check on a question answering system instance, the method comprising: embedding a ground truth virtual checksum in a shared library accessible by the question answering system instance, wherein the question answering system instance is trained using the ground truth virtual checksum as part of a ground truth including domain-specific ground truth, wherein the ground truth virtual checksum comprises a test question, an answer to the test question, and a confidence level range for the answer to the test question; responsive to a health check monitor triggering a health check servlet executing on the question answering system instance, submitting, by the health check servlet, a test question from the ground truth virtual checksum to the question answering system instance and receiving a result answer and a result confidence value; and responsive to the health check servlet determining the result answer and the result confidence value match the ground truth virtual checksum, notifying, by the health check servlet, the health check monitor that the question answering system instance is functional.
1. A method, in a data processing system, for performing a health check on a question answering system instance, the method comprising: embedding a ground truth virtual checksum in a shared library accessible by the question answering system instance, wherein the question answering system instance is trained using the ground truth virtual checksum as part of a ground truth including domain-specific ground truth, wherein the ground truth virtual checksum comprises a test question, an answer to the test question, and a confidence level range for the answer to the test question; responsive to a health check monitor triggering a health check servlet executing on the question answering system instance, submitting, by the health check servlet, a test question from the ground truth virtual checksum to the question answering system instance and receiving a result answer and a result confidence value; and responsive to the health check servlet determining the result answer and the result confidence value match the ground truth virtual checksum, notifying, by the health check servlet, the health check monitor that the question answering system instance is functional. 9. The method of claim 1 , wherein the ground truth virtual checksum is a multi-dimensional ground truth virtual checksum comprising a question identifier and a plurality of three-value n-tuples, each comprising an answer identifier, a confidence level range, and a response time range.