Marcel Reutegger created OAK-1186:
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Summary: Parallel execution of
ConcurrentReadAccessControlledTreeTest fails with MongoMK
Key: OAK-1186
URL: https://issues.apache.org/jira/browse/OAK-1186
Project: Jackrabbit Oak
Issue Type: Bug
Components: bench, core, mongomk
Affects Versions: 0.10
Reporter: Marcel Reutegger
Assignee: Marcel Reutegger
The is caused by concurrent creation of test content and the conflict it
creates in the index. Every Oak test instance tries to create
{{/oak:index/nodetype/:index/nt%3Afile}}, but only one will succeed. AFAICS
there are two options how to handle this:
- Implement conflict annotation (OAK-1185), though I'm not sure this will
really work. On commit, the rebase happens first, when changes from the other
Oak instance may not be visible yet. Then, the commit hook runs and perform
another branch commit with the changes, which works fine. Only the last step
fails, when MongoMK tries to merge the branch. This is the point when the
conflict may be detected.
- Implement a retry logic in MongoMK/NS
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