+1 From: e...@apache.org At: 09/17/19 05:48:32To: hdfs-...@hadoop.apache.org, mapreduce-...@hadoop.apache.org, common-dev@hadoop.apache.org, yarn-...@hadoop.apache.org Subject: [DISCUSS] Separate Hadoop Core trunk and Hadoop Ozone trunk source tree
TLDR; I propose to move Ozone related code out from Hadoop trunk and store it in a separated *Hadoop* git repository apache/hadoop-ozone.git When Ozone was adopted as a new Hadoop subproject it was proposed[1] to be part of the source tree but with separated release cadence, mainly because it had the hadoop-trunk/SNAPSHOT as compile time dependency. During the last Ozone releases this dependency is removed to provide more stable releases. Instead of using the latest trunk/SNAPSHOT build from Hadoop, Ozone uses the latest stable Hadoop (3.2.0 as of now). As we have no more strict dependency between Hadoop trunk SNAPSHOT and Ozone trunk I propose to separate the two code base from each other with creating a new Hadoop git repository (apache/hadoop-ozone.git): With moving Ozone to a separated git repository: * It would be easier to contribute and understand the build (as of now we always need `-f pom.ozone.xml` as a Maven parameter) * It would be possible to adjust build process without breaking Hadoop/Ozone builds. * It would be possible to use different Readme/.asf.yaml/github template for the Hadoop Ozone and core Hadoop. (For example the current github template [2] has a link to the contribution guideline [3]. Ozone has an extended version [4] from this guideline with additional information.) * Testing would be more safe as it won't be possible to change core Hadoop and Hadoop Ozone in the same patch. * It would be easier to cut branches for Hadoop releases (based on the original consensus, Ozone should be removed from all the release branches after creating relase branches from trunk) What do you think? Thanks, Marton [1]: https://lists.apache.org/thread.html/c85e5263dcc0ca1d13cbbe3bcfb53236784a39111b8 c353f60582eb4@%3Chdfs-dev.hadoop.apache.org%3E [2]: https://github.com/apache/hadoop/blob/trunk/.github/pull_request_template.md [3]: https://cwiki.apache.org/confluence/display/HADOOP/How+To+Contribute [4]: https://cwiki.apache.org/confluence/display/HADOOP/How+To+Contribute+to+Ozone --------------------------------------------------------------------- To unsubscribe, e-mail: common-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-dev-h...@hadoop.apache.org
