应用此修补程序后,当你遇到此问题(而不是无限期地等待 WRITELOG 或 LOGBUFFER)时,SQL Server 会使数据库脱机,而无需重新启动 SQL Server 服务即可使数据库恢复联机状态。 在某些情况下,数据库将由 SQL Server 自动重新联机,无...
假设你有一个在 Microsoft SQL Server 2008 或 SQL Server 2008 R2 中启用了透明数据加密(TDE)的数据库,针对该数据库的任何写操作都将在 WRITELOG 或 LOGBUFFER 上永久等待。 当数据库处于完整恢复模式并且计划的日志备份定期执行...
BACKUPIO and BACKUPBUFFER wait types question Batch script to run a procedure with parameters BCP Error - Oversized Column BCP Queryout too slow Best way to convert ntext,text,image to varchar(max),nvarchar(max) Blocking caused by -2 SPID BobMgr::GetBuf: Sort Big Output Buffer write no...
Buffer Pool The SQL Server query engine never directly interacts with the data files on disk. Instead it requests the data pages it needs to process a query from the buffer pool manager. The buffer pool manager checks if that page is already in the buffer pool and if so returns a memory ...
SQLServer: Buffer Manager Checkpoint pages/sec - number of pages flushed by checkpoint operations that require all dirty buffers to be written to disk Using Ignite for SQL Server or other tools, also determine the top SQL statements waiting on the WRITELOG event. If many statements are found wa...
For more information, see Database Mirroring (SQL Server).Transaction log characteristicsCharacteristics of the SQL Server Database Engine transaction log:The transaction log is implemented as a separate file or set of files in the database. The log cache is managed separately from the buffer ...
For more information, see Database Mirroring (SQL Server).Transaction log characteristicsCharacteristics of the SQL Server Database Engine transaction log:The transaction log is implemented as a separate file or set of files in the database. The log cache is managed separately from the buffer ...
If a server fails, the databases might be left in a state where some modifications were never written from the buffer cache to the data files, and there might be some modifications from incomplete transactions in the data files. When an instance of SQL Server is started, it runs a recovery...
If a server fails, the databases might be left in a state where some modifications were never written from the buffer cache to the data files, and there might be some modifications from incomplete transactions in the data files. When an instance of SQL Server is started, it runs a recovery...
Explains how to add a persisted log buffer to a database in SQL Server 2019 and later. Provides Transact SQL examples.