Bugbasev2 is a collection of reproduceable bugs in popular software stsytems (e.g. TensorFlow, MySQL, etc) and their failture sketches. Those reproducible bugs help for evaluating bug detection and root cause diagnosis and is an extension of data for the bugbase project. All the bugs are self-contained inside a docker container and ready to be invoked independently. Currently, the total number of reproducible bugs exceeds 100.