Alessandro Adamou created STANBOL-1428:
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Summary: Import resolution is not thtead-safe
Key: STANBOL-1428
URL: https://issues.apache.org/jira/browse/STANBOL-1428
Project: Stanbol
Issue Type: Bug
Components: Ontology Manager
Affects Versions: 1.0.0
Environment: cross-platform
Reporter: Alessandro Adamou
Assignee: Alessandro Adamou
Priority: Critical
When loading an ontology with imports, the ClerezzaOntologyProvider keeps
triple iterators running on the target graph for longer than required. Since
Clerezza introduced Lockable the MGraph, this thread-unsafety has resulted in
concurrent exceptions being thrown.
The solution is now to
* minimize the lifetime of iterators (do not keep them open during import
resolution)
* use mutex locks as documented in https://clerezza.apache.org/faq/
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