danny0405 commented on code in PR #20459: URL: https://github.com/apache/hudi/pull/20459#discussion_r4420153394
########## rfc/rfc-116/rfc-116.md: ########## @@ -0,0 +1,438 @@ +<!-- + Licensed to the Apache Software Foundation (ASF) under one or more + contributor license agreements. See the NOTICE file distributed with + this work for additional information regarding copyright ownership. + The ASF licenses this file to You under the Apache License, Version 2.0 + (the "License"); you may not use this file except in compliance with + the License. You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +--> + +# RFC-116: Support Branches and Tags + +## Proposers + +- @cshuo +- @danny0405 + +## Approvers + +- TBD + +## Status + +RFC reservation: [#20456](https://github.com/apache/hudi/pull/20456) + +## Abstract + +This RFC adds writable branches and read-only tags to Hudi. The data table and a single metadata table (MDT) share immutable files across branches, while each branch has its own timelines. MDT reads follow the selected branch’s timeline. A working branch can publish to main through strict fast-forward. Writing the Data-side `_SUCCESS` publishes the paired Data/MDT state to main. Tags protect paired historical Data/MDT states for time-travel reads and writable branch creation. + +## Background Review Comment: can we supplement or reorganize with these items: 1. goals & non-goals; 2. high-level design (how to use it from a user perspective); 3. terminologies introduced 4. move to details design -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
