Minor We sometimes get this on SQL Server:
org.nuxeo.ecm.core.api.ConcurrentUpdateException: Failed to remove document 1013d80f-3d1a-4b1d-9e67-b7e34111cdbb, java.sql.SQLException: Transaction (Process ID 51) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction. at org.nuxeo.ecm.core.storage.sql.jdbc.JDBCConnection.checkConcurrentUpdate(JDBCConnection.java:203) at org.nuxeo.ecm.core.storage.sql.jdbc.JDBCRowMapper.deleteRowsDirect(JDBCRowMapper.java:858) at org.nuxeo.ecm.core.storage.sql.jdbc.JDBCRowMapper.remove(JDBCRowMapper.java:1298) at org.nuxeo.ecm.core.storage.sql.SoftRefCachingRowMapper.remove(SoftRefCachingRowMapper.java:429) at org.nuxeo.ecm.core.storage.sql.PersistenceContext.removeNode(PersistenceContext.java:863) at org.nuxeo.ecm.core.storage.sql.SessionImpl.removeNode(SessionImpl.java:1054) at org.nuxeo.ecm.core.storage.sql.ra.ConnectionImpl.removeNode(ConnectionImpl.java:239) at org.nuxeo.ecm.core.storage.sql.coremodel.SQLSession.remove(SQLSession.java:599) at org.nuxeo.ecm.core.storage.sql.coremodel.SQLDocumentLive.remove(SQLDocumentLive.java:157) at org.nuxeo.ecm.core.api.AbstractSession.removeNotifyOneDoc(AbstractSession.java:1326) at org.nuxeo.ecm.core.api.AbstractSession.removeDocument(AbstractSession.java:1296) at org.nuxeo.ecm.core.api.AbstractSession.removeDocument(AbstractSession.java:1286) at org.nuxeo.diff.pictures.test.DiffPicturesOperationsTest.cleanup(DiffPicturesOperationsTest.java:112)
This is due to a cleanup method doing a delete and running concurrently with an asynchronous process. We could do an explicit wait for async events to be completed, but even simpler we can remove the cleanup method given that the CoreFeature already takes care of it.
