Kylin Branches for Different Hadoop/HBase Versions

Because HBase API diverges based on versions and vendors, different code branches have to be maintained for different HBase versions.

The branching design is

  • The master branch compiles with HBase 1.1, and is also the main branch for development. All bug fixes and new features commits to master only.
  • The master-hadoop3.1 branch compiles with Hadoop 3.1 and HBase 1.x. This branch is created by applying several patches on top of master. In other word, master-hadoop3.1 = master + patches to support Hadoop 3 and HBase 2.x.
  • The master-hbase0.98 is deprecated;
  • There are several release maintenance branches like 2.5.x, 2.4.x. If you have a PR or patch, please let reviewer knows which branch it need be applied. The reviewer should cherry-pick the patch to a specific branch after be merged into master.
  • No code changes should happen on master-hadoop3.1, master-hbase0.98 directly (apart from the last commit on the branch that adapts HBase calls).

There is a script helps to keep these branches in sync: dev-support/