I think consolidating on a common library and tooling for defining API expectations for Hadoop would be great.
Unfortunately, the Apache Yetus community recently started a discussion around dropping their maintenance of the audience annotations codebase[1] due to lack of community interest. In particular, there has been an outstanding problem with doclet support for filtering javadocs by annotation since JDK9 came out. I think that means a necessary first step here would be to determine if we have contributors willing to show up over in that project to get things into a good state for future JDK adoption. [1]: https://s.apache.org/ybdl6 "[DISCUSS] Drop JDK8; audience-annotations" from d...@yetus.apache.org > On Sep 27, 2021, at 2:46 AM, Viraj Jasani <vjas...@apache.org> wrote: > > Since the early days, Hadoop has provided Interface classification > annotations to represent the scope and stability for downstream > applications to select Hadoop APIs carefully. After some time, these > annotations (InterfaceAudience and InterfaceStability) have been migrated > to Apache Yetus. As of today, with increasing number of Hadoop ecosystem > applications using (or starting to use) Yetus stability annotations for > their own downstreamers, we should also consider using IA/IS annotations > provided by *org.apache.yetus.audience *directly in our codebase and retire > our *org.apache.hadoop.classification* package for the better separation of > concern and single source. > > I believe we can go with this migration to maintain compatibility for > Hadoop downstreamers: > > 1. In Hadoop trunk (3.4.0+ releases), replace all usages of o.a.h.c > stability annotations with o.a.y.a annotations. > 2. Deprecate o.a.h.c annotations, and provide deprecation warning that > we will remove o.a.h.c in 4.0.0 (or 5.0.0) release and the only source for > these annotations should be o.a.y.a. > > Any thoughts? --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-dev-h...@hadoop.apache.org
