将承载 SharePoint 数据库的 SQL Server 实例的最大并行度 (MAXDOP) 设置为 1 以确保单个 SQL Server 过程能够为每个请求提供服务。 重要 将最大并行度设置为其他任何数字将导致应用不是最优的查询计划,进而降低 SharePoint Server 性能。 为了有助于简化维护过程(例如为了能够更轻松地将数据库移动到其他服务器)...
Based on above mentioned error message, we can either set the value forIndex Creation Memory (in KB)as 2048 i.e., twice the value of 1024 KB. The reason being on this SQL Server Instance theMax Degree of Parallelism(MAXDOP) is set to 2. Finally, click OK to save the new changes. ...
I would suggest to use the 8 as a thumb rule number. Just keep a simple formula in your mind that if you have 8 or more Logical Processor in one NUMA Node (Physical Processor) then use 8 as the MAXDOP settings number. If you have less than 8 Logical Processor in one NUMA Node,...
Single NUMA node: > 8 logical processors, keep MAXDOP = 8 Multiple NUMA nodes: < =16 logical processors, keep MAXDOP <= actual number of cores Multiple NUMA nodes: > 16 logical processors, keep MAXDOP = 16 (SQL Server 2016 and above), keep MAXDOP = 8 (prior to SQL Serve...
(SQL Server 2008 only) The MAXDOP (Maximum Degree of Parallelism) limits imposed on the resource pool that the query is executing within, by the Resource Governor Any MAXDOP hint on the query Even if a parallel query plan is compiled (in addition to the serial plan always generated), SQL ...
确保sp_configure中的所有设置在升级后都重新配置为合适的值,如MAXDOP, Max Server Memory, AWE等. 2. 将数据库的compatible level调整到升级后的SQL Server的相应等级. 3. 对所有的用户数据库上的index进行rebuild,确保在升级后的系统上这些Index仍然可以良好的工 作.如果时间上不允许一次性rebuild...
General guidelines to use to configure the MAXDOP optionhttps://learn.microsoft.com/en-us/sql/database-engine/configure-windows/configure-the-max-degree-of-parallelism-server-configuration-option?view=sql-server-2017#recommendations Considerations for the "autogrow" and "autoshrink" settings in SQL Se...
No automatic determination of the optimal degree of parallelism is attempted by the Database Engine. For information on manually controlling the maximum degree of parallelism (MAXDOP) at the instance, database, query, or workload levels, seeServer configuration: max degree of parallelismDegree of pa...
Queries running under MAXDOP 1 or with a serial plan execute in Batch Mode Statistics can be automatically updated.The logic that automatically updates statistics is more aggressive on large tables. In practice, this should reduce cases where customers have seen performance i...
You might not be able to change a setting like MAXDOP or parameter sniffing for the whole SQL Server, which may mean using anALTER DATABASE SCOPED CONFIGURATIONoption for a single database Even if you can change code, there may be a lengthy testing process which prevents a change from being...