DaoStateStorageService: Fix shutdown data corruption bug #6548
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The DaoStateStorageService submits tasks to a daemon thread executor service. The JVM continues to execute threads until all non-daemon threads have terminated. So the JVM will kill the DaoStateStorageService during write requests leading to data corruption. This change uses a non-daemon thread executor service at waits during shutdown until all data is written to disk.
alvasw
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fix_dao_state_storage_service_shutdown_data_corruption_bug
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The DaoStateStorageService submits tasks to a daemon thread executor service. The JVM continues to execute threads until all non-daemon threads have terminated. So the JVM will kill the DaoStateStorageService during write requests leading to data corruption.
This change uses a non-daemon thread executor service at waits during shutdown until all data is written to disk.