GitHub user tgroh opened a pull request: https://github.com/apache/beam/pull/1971
[BEAM-646] Construct Pipeline Nodes after Pipeline#run Be sure to do all of the following to help us incorporate your contribution quickly and easily: - [ ] Make sure the PR title is formatted like: `[BEAM-<Jira issue #>] Description of pull request` - [ ] Make sure tests pass via `mvn clean verify`. (Even better, enable Travis-CI on your fork and ensure the whole test matrix passes). - [ ] Replace `<Jira issue #>` in the title with the actual Jira issue number, if there is one. - [ ] If this contribution is large, please file an Apache [Individual Contributor License Agreement](https://www.apache.org/licenses/icla.txt). --- Before-run is not compatible with Pipeline Surgery Specifically, before-execution fails because the snapshot that is taken of the Pipeline is before the PipelineRunner replaces all the nodes, and as a result the final graph (after run() and the test complete successfully) has different nodes, even though it is (in terms of pipeline behavior) the same graph. Neither of the TestPipeline Enforcements require a pre-run traversal, so this should not have observable effects outside of surgery. You can merge this pull request into a Git repository by running: $ git pull https://github.com/tgroh/beam test_pipeline_sequencing Alternatively you can review and apply these changes as the patch at: https://github.com/apache/beam/pull/1971.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #1971 ---- commit af403d7d1b2cd4a404d882f8a3300b7558f4c3f1 Author: Thomas Groh <tg...@google.com> Date: 2017-02-09T19:39:08Z Construct Pipeline Nodes after Pipeline#run Before-run is not compatible with Pipeline Surgery ---- --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---