A basic question, is iceberg-hive-metastore considered part of the "Hive module"?
I suppose that HMS 2.x is still widely used. AFAIK, the current iceberg-hive-metastore is compatible with HMS 2.1+, based on Iceberg and Spark CI, I also suppose it works well with Java 8 to 21. Thanks, Cheng Pan On Fri, Jul 19, 2024 at 4:44 AM Ryan Blue <b...@databricks.com.invalid> wrote: > > Thanks for the context, Denys and Peter. Sounds like there's a good question > here about where the Hive integration should live and the most recent > decision was to maintain that support in Hive. I definitely hear the point > about Hive 3 users depending on the Iceberg modules. I'm also glad to hear > that some of the issues are expected to be fixed with the release of Hive > 4.0.x. > > I think that we have two separate questions for how to move forward with Hive > support, depending on the Hive version. There is a question about what we do > with the current Hive modules and what to do with the Hive 4 support that has > been developed externally. > > For Hive 2.x and 3.x, we have code in the Iceberg repo that is not being > developed. Hive 2 is fairly easy since it is EOL. While Hive 3 is still used, > I don't think it makes sense to keep releasing versions of it if it requires > Java 8, which has not been publicly maintained for 5 years. We need to > upgrade and that is at odds with keeping support for Hive 3. As Fokko and I > both pointed out, people can still use older releases. > > For the question of how to maintain support for Hive 4, I think it's worth > having a separate discussion (probably not on the thread about JDK versions) > about where to maintain it. I think that it is best to maintain integration > in engines and not in the Iceberg project; there are few implementations here > and I think that it is a hard problem for Iceberg to maintain support for > multiple versions (as you can see with support for so many different Flink, > Hive, and Spark versions). > > Ryan > > On Thu, Jul 18, 2024 at 7:25 AM Denys Kuzmenko <dkuzme...@apache.org> wrote: >> >> In the following 1-2 months we plan to release HIVE-4.0.1 which includes bug >> fixes and then focus on HIVE-4.1.0 release with jdk17. > > > > -- > Ryan Blue > Databricks
