| The wait type PREEMPTIVE_OS_AUTHZINITIALIZERES is ranked #66 by Stedman Solutions and Database Health Monitor. Wait statistics, in the context of SQL Server, refer to the amount of time that a query spends waiting to access data in the database. When a client application requests data from the database, the request is placed in a queue and the client application must wait for its turn to access the data. The time that the query spends waiting is called a "wait" and is tracked by SQL Server. This information can be used to identify potential performance bottlenecks and optimize the performance of the database. Wait statistics are commonly used by database administrators to diagnose and troubleshoot performance issues in SQL Server. The PREEMPTIVE_OS_AUTHZINITIALIZERES wait type occurs when a process in SQL Server is waiting for the operating system to initialize a security authorization context. This process is used to ensure that the user who is accessing the database has the appropriate permissions to perform the requested operation. If the PREEMPTIVE_OS_AUTHZINITIALIZERES wait type occurs frequently or for long periods of time, it can indicate that SQL Server is having trouble initializing security authorization contexts, which can impact the performance of the database. This can be caused by a number of factors, such as a high number of concurrent users, complex security rules, or inadequate hardware resources. To address this issue, you can try optimizing the performance of your hardware by adding more memory or CPU resources. You can also try simplifying your security rules to reduce the amount of time it takes to initialize security authorization contexts. Another solution is to optimize your queries to minimize the number of times that SQL Server needs to initialize security authorization contexts. This can be done by using stored procedures, or by using other performance-enhancing techniques such as parallelism and query hints. In summary, the PREEMPTIVE_OS_AUTHZINITIALIZERES wait type in SQL Server indicates that the database is having trouble initializing security authorization contexts. This can be caused by a variety of factors, and can be addressed by optimizing the performance of your hardware, simplifying your security rules, and optimizing your queries. By taking these steps, you can help improve the performance of your SQL Server database and ensure that it can respond to queries quickly and efficiently. Applies toRelated WaitsPREEMPTIVE_COM_QUERYINTERFACEPREEMPTIVE_FILESIZEGET PREEMPTIVE_HADR_LEASE_MECHANISM PREEMPTIVE_OLEDBOPS PREEMPTIVE_OS_AUTHENTICATIONOPS PREEMPTIVE_OS_AUTHORIZATIONOPS PREEMPTIVE_OS_AUTHZGETINFORMATIO PREEMPTIVE_OS_AUTHZINITIALIZECON PREEMPTIVE_OS_BACKUPREAD PREEMPTIVE_OS_CLOSEHANDLE PREEMPTIVE_OS_CLUSTEROPS PREEMPTIVE_OS_CREATEFILE PREEMPTIVE_OS_CRYPTACQUIRECONTEX PREEMPTIVE_OS_CRYPTIMPORTKEY PREEMPTIVE_OS_CRYPTOPS PREEMPTIVE_OS_DELETEFILE PREEMPTIVE_OS_DEVICEOPS PREEMPTIVE_OS_DTCOPS PREEMPTIVE_OS_ENCRYPTMESSAGE PREEMPTIVE_OS_FILEOPS PREEMPTIVE_OS_FLUSHFILEBUFFERS PREEMPTIVE_OS_GENERICOPS PREEMPTIVE_OS_GETCOMPRESSEDFILES PREEMPTIVE_OS_GETDISKFREESPACE PREEMPTIVE_OS_GETFILEATTRIBUTES PREEMPTIVE_OS_GETFINALFILEPATHBY PREEMPTIVE_OS_GETPROCADDRESS PREEMPTIVE_OS_LIBRARYOPS PREEMPTIVE_OS_LOADLIBRARY PREEMPTIVE_OS_LOOKUPACCOUNTSID PREEMPTIVE_OS_MOVEFILE PREEMPTIVE_OS_NETVALIDATEPASSWOR PREEMPTIVE_OS_PIPEOPS PREEMPTIVE_OS_QUERYREGISTRY PREEMPTIVE_OS_REPORTEVENT PREEMPTIVE_OS_REVERTTOSELF PREEMPTIVE_OS_SECURITYOPS PREEMPTIVE_OS_SERVICEOPS PREEMPTIVE_OS_SQLCLROPS PREEMPTIVE_OS_WAITFORSINGLEOBJEC PREEMPTIVE_OS_WRITEFILEGATHER PREEMPTIVE_XE_CALLBACKEXECUTE PREEMPTIVE_XE_GETTARGETSTATE PREEMPTIVE_XE_SESSIONCOMMIT PREEMPTIVE_XE_TARGETFINALIZE PREEMPTIVE_XE_TARGETINIT See AlsoAll Wait Types |  |