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問題
サーバー再起動時に一意制約（IX_228562AD）に違反しました。 として示すことができる。
JDBCExceptionReporter クラスの ERROR ログメッセージを表示します。
BackgroundTaskMessageListener クラスで INFO ログエラーが発生しました。
2022-04-20 11:32:25.855 ERROR [liferay/background_task-3][JDBCExceptionReporter:234] integrity constraint violation: unique constraint or index violation: IX_228562AD 2022-04-20 11:32:25.861 INFO [liferay/background_task-3][BackgroundTaskMessageListener:151] Unable to acquire lock, queuing background task 37387
2022-04-20 11:32:25.855 ERROR [liferay/background_task-3][JDBCExceptionReporter:234] integrity constraint violation: unique constraint or index violation: IX_228562AD 2022-04-20 11:32:25.861 DEBUG [liferay/background_task-3][BackgroundTaskMessageListener:146] Unable to acquire lock, queuing background task 37387 com.liferay.portal.kernel.lock.DuplicateLockException: com.liferay.portal.lock.internal.LockImpl@920c at com.liferay.portal.background.task.internal.SerialBackgroundTaskExecutor.acquireLock(SerialBackgroundTaskExecutor.java:79) at com.liferay.portal.background.task.internal.SerialBackgroundTaskExecutor.execute(SerialBackgroundTaskExecutor.java:57) at com.liferay.portal.kernel.backgroundtask.DelegatingBackgroundTaskExecutor.execute(DelegatingBackgroundTaskExecutor.java:41) at com.liferay.portal.background.task.internal.ThreadLocalAwareBackgroundTaskExecutor.execute(ThreadLocalAwareBackgroundTaskExecutor.java:72) at com.liferay.portal.background.task.internal.messaging.BackgroundTaskMessageListener.doReceive(BackgroundTaskMessageListener.java:136) at com.liferay.portal.kernel.messaging.BaseMessageListener.doReceive(BaseMessageListener.java:48) at com.liferay.portal.kernel.messaging.BaseMessageListener.receive(BaseMessageListener.java:34) at com.liferay.portal.kernel.messaging.InvokerMessageListener.receive(InvokerMessageListener.java:74) at com.liferay.portal.messaging.internal.ParallelDestination$1.run(ParallelDestination.java:56) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)