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| author | GitLab Bot <gitlab-bot@gitlab.com> | 2019-09-27 21:06:20 +0300 |
|---|---|---|
| committer | GitLab Bot <gitlab-bot@gitlab.com> | 2019-09-27 21:06:20 +0300 |
| commit | 2abb1b54c0305b359b178d6660810e865f619c22 (patch) | |
| tree | e388953a0566ef9844b0b98cdb34236049721a14 /doc/ci/merge_request_pipelines | |
| parent | 8320f7956d72986f5a7c850874fce4f8b5a8e015 (diff) | |
Add latest changes from gitlab-org/gitlab@master
Diffstat (limited to 'doc/ci/merge_request_pipelines')
| -rw-r--r-- | doc/ci/merge_request_pipelines/pipelines_for_merged_results/index.md | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/doc/ci/merge_request_pipelines/pipelines_for_merged_results/index.md b/doc/ci/merge_request_pipelines/pipelines_for_merged_results/index.md index e1c5848af03..ced6efc415b 100644 --- a/doc/ci/merge_request_pipelines/pipelines_for_merged_results/index.md +++ b/doc/ci/merge_request_pipelines/pipelines_for_merged_results/index.md @@ -93,6 +93,17 @@ To check these feature flag values, please ask administrator to execute the foll > Feature.enable(:ci_use_merge_request_ref) # Enable the feature flag. ``` +### Intermittently pipelines fail by `fatal: reference is not a tree:` error + +Since pipelines for merged results are a run on a merge ref of a merge request +(`refs/merge-requests/<iid>/merge`), the git-reference could be overwritten at an +unexpected timing, for example, when a source or target branch is advanced. +In this case, the pipeline fails because of `fatal: reference is not a tree:` error, +which indicates that the checkout-SHA is not found in the merge ref. + +This behavior was improved at GitLab 12.4 by introducing [Persistent pipeline refs](../../pipelines.md#persistent-pipeline-refs). +You should be able to create pipelines at any timings without concerning the error. + ## Using Merge Trains **(PREMIUM)** By enabling [Pipelines for merged results](#pipelines-for-merged-results-premium), |