![]() Enjoy!ĭeadlocks occur in SQL Server whenever two processes attempt to acquire locks on the same resources in reverse order creating a persistently blocked condition, where neither of the sessions can continue to execute until the other session releases its locks. You can find all the other posts in this series at. It’s a little taster to let you know what we cover in our Immersion Event for The Accidental/Junior DBA, which we present several times each year. Rerun the transaction.Īt .SQLServerException.makeFromDatabaseError(SQLServerException.java:196)Īt .SQLServerResultSet$FetchBuffer.nextRow(SQLServerResultSet.java:4700)Īt .SQLServerResultSet.fetchBufferNext(SQLServerResultSet.java:1683)Īt .SQLServerResultSet.next(SQLServerResultSet.java:956)Īt .DelegatingResultSet.next(DelegatingResultSet.java:207)Īt .(DelegatingResultSet.java:424)Īt .(DatasourceHistoryInterface.java:435)Īt .(DatasourceQueryExecutor.java:646)Īt .initialize(AggregateHistoryQueryExecutor.java:78)Īt .initLoader(HistoryWriter.java:140)Īt .execute(HistoryWriter.java:210)Īt .(SQLTagsManagerImpl.java:1283)Īt .project.ProjectSettingsCache$ProjectDefaultTagManagerFacade.queryHistory(ProjectSettingsCache.java:669)Īt .invoke(QueryTagHistory.java:96)Īt .(Gateway.java:405)Īt .service(HttpServlet.java:707)Īt .service(HttpServlet.java:790)Īt .(MapServlet.java:85)Īt .ServletHolder$rvice(ServletHolder.java:1391)Īt .ServletHolder.handle(ServletHolder.java:760)Īt .ServletHandler.doHandle(ServletHandler.java:547)Īt .(ScopedHandler.java:143)Īt .SecurityHandler.handle(SecurityHandler.java:590)Īt .(HandlerWrapper.java:127)Īt .(ScopedHandler.java:235)Īt .(SessionHandler.java:1607)Īt .(ScopedHandler.java:233)Īt .(ContextHandler.java:1297)Īt .(ScopedHandler.java:188)Īt .ServletHandler.doScope(ServletHandler.java:485)Īt .(SessionHandler.java:1577)Īt .(ScopedHandler.java:186)Īt .(ContextHandler.java:1212)Īt .(ScopedHandler.java:141)Īt .(HandlerList.java:59)Īt .Server.handle(Server.java:500)Īt .HttpChannel.lambda$handle$1(HttpChannel.java:383)Īt .HttpChannel.dispatch(HttpChannel.java:547)Īt .HttpChannel.handle(HttpChannel.java:375)Īt .HttpConnection.onFillable(HttpConnection.java:270)Īt .AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)Īt .FillInterest.fillable(FillInterest.java:103)Īt .ChannelEndPoint$2.run(ChannelEndPoint.java:117)Īt .(EatWhatYouKill.java:336)Īt .(EatWhatYouKill.java:313)Īt .(EatWhatYouKill.java:171)Īt .(EatWhatYouKill.java:129)Īt .thread.ReservedThreadExecutor$n(ReservedThreadExecutor.java:388)Īt .(QueuedThreadPool.java:806)Īt .thread.QueuedThreadPool$n(QueuedThreadPool.This month the SQLskills team is presenting a series of blog posts aimed at helping Accidental/Junior DBAs ‘keep the SQL Server lights on’. ![]() ![]() I am sure how to track down what 2 resources are trying to update the table at the same time… .SQLServerException: Transaction (Process ID 66) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. I keep having this error appear in my logs.
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