[database] Concurrency problem in JPA database initialization
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Key: LABS-472
URL: https://issues.apache.org/jira/browse/LABS-472
Project: Labs
Issue Type: Bug
Components: Magma
Affects Versions: Current
Reporter: Simone Gianni
Priority: Critical
Fix For: Current
The problem is evident when more than one thread starts using the database
during startup. For example, when there are jobs that run concurrently with
main startup sequence.
Two different JPA connections are started, and one of the two reports errors
during initialization.
A concurrent lock should be present to pause other threads waiting for a
database connection until the first one is correctly initialized.
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