On Fri, Dec 15, 2017 at 12:45 AM, Enrico Olivelli <eolive...@apache.org> wrote:
> Hi guys, > we need to address this issue, that is to introduce compat test for 4.5 and > 4.6 and possibly drop legacy versions. > > This is very important for us and for our time based release plan. > > > Does anyone have cycles for this ? > > I have some idea but not enough time to implement the full stack, I will be > happy to help. > > The best thing would be to drop the shaded/relocated dependencies and run > old code in separate classloaders, this in turn will require some tricks to > download the jars will all the needed dependencies. Even the "current code" > will need to be loaded in a separate classloader. > > An alternative approach would be to start bookies in a different process > but for the client side part it won't work so simply, in fact it won't be > simple to run the old client, or at least we will have to create separate > modules with different classpath for each client version. > Another alternative approach is to use arquilian testing framework ( http://arquillian.org/arquillian-cube/) to write BC tests with docker containers. Here is one example on how the test would look like: https://github.com/streamlio/arquillian-sample/blob/master/kubernetes/src/test/java/bookkeeper/BookkeeperKubernetesTest.java > > > It is a blocker for BP-14 (and BP-18) as well, as we need to introduce BC > compat tests against latest versions. > It is a blocker for any other improvement on protocol and metadata > > Enrico >
