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up Recent PostsRecent Posts Popular TopicsPopular Topics Home Search Members Calendar Who's On Home » SQL Server 2008 » SQL Server 2008 - General » http://www.sqlservercentral.com/Forums/Topic1214453-391-1.aspx Error: 18056, Severity: 20, State: 29 Error: 18056, Severity: 20, State: 29 Rate Topic http://sqlblog.com/blogs/aaron_bertrand/archive/2011/01/14/sql-server-v-next-denali-additional-states-for-error-18456.aspx Display Mode Topic Options Author Message NickDBANickDBA Posted Thursday, December 1, 2011 3:36 AM Old Hand Group: General Forum Members Last Login: Wednesday, July 1, 2015 5:17 AM Points: 359, Visits: 936 Hi, we have a .net web application which experienced timeouts connecting to our SQL Server last night (for a period of about 10 mins). severity 20 The only thing in the SQL logs is:-----------------------------------------------------------Error: 18056, Severity: 20, State: 29.The client was unable to reuse a session with SPID xx, which had been reset for connection pooling. The failure ID is 29. This error may have been caused by an earlier operation failing. Check the error logs for failed operations immediately before this error message.*This is repeated for SPID xx (6 diferent SPIDs)-----------------------------------------------------------Reading a lot of conflicting information severity 20 state regarding this. Has anybody seen / diagnosed / remedied this issue in their own production environment.We're running:SQL Server 2008 Web Edition (SP1) x64Windows Server 2008 Standard (SP1)2 x 2.5 Ghz (quad core)16 Gb RAM Post #1214453 anthony.greenanthony.green Posted Thursday, December 1, 2011 3:49 AM SSCertifiable Group: General Forum Members Last Login: Thursday, September 1, 2016 2:56 AM Points: 5,969, Visits: 6,067 only other time i have seen this is when the server was rebooting due to automatic updates.did your server reboot last night? Want an answer fast? Try hereHow to post data/code for the best help - Jeff ModenWhen a question, really isn't a question - Jeff SmithNeed a string splitter, try this - Jeff ModenHow to post performance problems - Gail ShawCrossTabs-Part1 & Part2 - Jeff ModenSQL Server Backup, Integrity Check, and Index and Statistics Maintenance - Ola HallengrenManaging Transaction Logs - Gail ShawTroubleshooting SQL Server: A Guide for the Accidental DBA - Jonathan Kehayias and Ted Krueger Post #1214463 NickDBANickDBA Posted Thursday, December 1, 2011 3:54 AM Old Hand Group: General Forum Members Last Login: Wednesday, July 1, 2015 5:17 AM Points: 359, Visits: 936 Hi, no the server stayed up (and is still up) and is responding fine. We've not applied any updates. Post #1214467 anthony.greenanthony.green Posted
of Plan Explorer and a performance monitoring and event management platform for the Microsoft Data Platform and VMware. He has been blogging here at sqlblog.com since 2006, focusing on manageability, performance, and new features, and also blogs at blogs.sentryone.com and SQLPerformance.com; has been a Microsoft MVP since 1997; tweets as @AaronBertrand; and speaks frequently at major conferences, user group meetings, and SQL Saturday events worldwide. Troubleshooting Error 18456 I think we've all dealt with error 18456, whether it be an application unable to access SQL Server, credentials changing over time, or a user who can't type a password correctly. The trick to troubleshooting this error number is that the error message returned to the client or application trying to connect is intentionally vague (the error message is similar for most errors, and the state is always 1). In a few cases, some additional information is included, but for the most part several of these conditions appear the same to the end user. In order to figure out what is really going wrong, you need to have alternative access to the SQL Server and inspect the log for the true state in the error message. I helped our support team just today solve a client's 18456 issues - once we tracked down the error log and saw that it was state 16, it was easy to determine that their login had been set up with a default database that had been detached long ago. In SQL Server 2012, there is a new feature called "contained databases" - I've blogged about it here and here. With this feature comes a new layer of security that may creep onto your radar if you use this functionality: contained user authentication failures. There are a variety of things that can go wrong here. If you connect with a contained user but forget to specify a database name, SQL Server will attempt to authorize you as a SQL login, and you will fail with state 5 (if there is no SQL login with that name) or state 8 (if there is also a SQL login with the same name and the password doesn't match). There is also a new state 65 which occurs if you have specified the correct username and contained database, but entered an incorrect password. The way that the authentication process works is, if SQL Server doesn't find your user in the contained database you specifies, it tries again at the server level, then gives up (it won't go check all the other contained databases in case you match there - I hope you agree that this is a good thing). If you don't specify a database in your connection string, then it won't succeed unless - by coincidence - you have a contained user with the same username and passwor