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From "Maximilian Michels (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-4261) Setup atomic deployment of snapshots
Date Mon, 25 Jul 2016 14:11:20 GMT
Maximilian Michels created FLINK-4261:
-----------------------------------------

             Summary: Setup atomic deployment of snapshots
                 Key: FLINK-4261
                 URL: https://issues.apache.org/jira/browse/FLINK-4261
             Project: Flink
          Issue Type: Bug
          Components: Build System, release
            Reporter: Maximilian Michels
            Assignee: Maximilian Michels
             Fix For: 1.1.0


Users have reported that our nightly snapshots become inconsistent from time to time. This
happens when the upload to the snapshot repository fails during the deployment process. Maven
doesn't support atomic deployment but deploys artifacts one after another, directly after
installing them in the local repository. If the build fails at any time, no changes are rolled
back. 

This problem has been solved for Nexus repositories. For releases, we already take advantage
of atomic deployments using staging repositories. Nexus repositories support this even without
using a special Maven plugin. 

For releases, we have to use the Web UI to close and release staging repositories. For snapshots
this should be automated. Most importantly, the changes shouldn't alter anything for our release
process.

I suggest to use the {{nexus-staging-maven-plugin}} which essentially replaces the standard
maven deploy plugin. It can be setup to auto-close and auto-release snapshots staging repositories.
For releases, it will be setup to never auto-close nor auto-release which keeps our existing
release process.



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