Jose Armando Garcia Sancio created KAFKA-12668:
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Summary: MockScheduler is not safe to use in concurrent code.
Key: KAFKA-12668
URL: https://issues.apache.org/jira/browse/KAFKA-12668
Project: Kafka
Issue Type: Improvement
Components: unit tests
Reporter: Jose Armando Garcia Sancio
The current implementation of MockScheduler executes tasks in the same stack
when schedule is called. This violates Log's assumption since Log calls
schedule while holding a lock. This can cause deadlock in tests.
One solution is to change MockSchedule schedule method so that tick is not
called. tick should be called by a stack (thread) that doesn't hold any locks.
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