MS SQL Serverの監視のいくつかの側面。 トレースフラグの設定に関する推奨事項

use <_>; go create schema inf; 

 CREATE view [inf].[vRAM] as select a.[TotalAvailOSRam_Mb] --       , a.[RAM_Avail_Percent] --     , a.[Server_physical_memory_Mb] --       , a.[SQL_server_committed_target_Mb] --     MS SQL Server   , a.[SQL_server_physical_memory_in_use_Mb] --    MS SQL Server       , a.[SQL_RAM_Avail_Percent] --    MS SQL Server      MS SQL Server , a.[StateMemorySQL] --    MS SQL Server , a.[SQL_RAM_Reserve_Percent] --    MS SQL Server     --     , (case when a.[RAM_Avail_Percent]<10 and a.[RAM_Avail_Percent]>5 and a.[TotalAvailOSRam_Mb]<8192 then 'Warning' when a.[RAM_Avail_Percent]<=5 and a.[TotalAvailOSRam_Mb]<2048 then 'Danger' else 'Normal' end) as [StateMemoryServer] from ( select cast(a0.available_physical_memory_kb/1024.0 as int) as TotalAvailOSRam_Mb , cast((a0.available_physical_memory_kb/casT(a0.total_physical_memory_kb as float))*100 as numeric(5,2)) as [RAM_Avail_Percent] , a0.system_low_memory_signal_state , ceiling(b.physical_memory_kb/1024.0) as [Server_physical_memory_Mb] , ceiling(b.committed_target_kb/1024.0) as [SQL_server_committed_target_Mb] , ceiling(a.physical_memory_in_use_kb/1024.0) as [SQL_server_physical_memory_in_use_Mb] , cast(((b.committed_target_kb-a.physical_memory_in_use_kb)/casT(b.committed_target_kb as float))*100 as numeric(5,2)) as [SQL_RAM_Avail_Percent] , cast((b.committed_target_kb/casT(a0.total_physical_memory_kb as float))*100 as numeric(5,2)) as [SQL_RAM_Reserve_Percent] , (case when (ceiling(b.committed_target_kb/1024.0)-1024)<ceiling(a.physical_memory_in_use_kb/1024.0) then 'Warning' else 'Normal' end) as [StateMemorySQL] from sys.dm_os_sys_memory as a0 cross join sys.dm_os_process_memory as a cross join sys.dm_os_sys_info as b cross join sys.dm_os_sys_memory as v ) as a; 

 CREATE view [inf].[vWaits] as WITH [Waits] AS (SELECT [wait_type], --   [wait_time_ms] / 1000.0 AS [WaitS],--      .    signal_wait_time_ms ([wait_time_ms] - [signal_wait_time_ms]) / 1000.0 AS [ResourceS],--        signal_wait_time_ms [signal_wait_time_ms] / 1000.0 AS [SignalS],--           [waiting_tasks_count] AS [WaitCount],--   .         100.0 * [wait_time_ms] / SUM ([wait_time_ms]) OVER() AS [Percentage], ROW_NUMBER() OVER(ORDER BY [wait_time_ms] DESC) AS [RowNum] FROM sys.dm_os_wait_stats WHERE [waiting_tasks_count]>0 and [wait_type] NOT IN ( N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', N'ONDEMAND_TASK_QUEUE', N'PWAIT_ALL_COMPONENTS_INITIALIZED', N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'REQUEST_FOR_DEADLOCK_SEARCH', N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'XE_DISPATCHER_JOIN', N'XE_DISPATCHER_WAIT', N'XE_TIMER_EVENT') ) , ress as ( SELECT [W1].[wait_type] AS [WaitType], CAST ([W1].[WaitS] AS DECIMAL (16, 2)) AS [Wait_S],--      .    signal_wait_time_ms CAST ([W1].[ResourceS] AS DECIMAL (16, 2)) AS [Resource_S],--        signal_wait_time_ms CAST ([W1].[SignalS] AS DECIMAL (16, 2)) AS [Signal_S],--           [W1].[WaitCount] AS [WaitCount],--   .         CAST ([W1].[Percentage] AS DECIMAL (5, 2)) AS [Percentage], CAST (([W1].[WaitS] / [W1].[WaitCount]) AS DECIMAL (16, 4)) AS [AvgWait_S], CAST (([W1].[ResourceS] / [W1].[WaitCount]) AS DECIMAL (16, 4)) AS [AvgRes_S], CAST (([W1].[SignalS] / [W1].[WaitCount]) AS DECIMAL (16, 4)) AS [AvgSig_S] FROM [Waits] AS [W1] INNER JOIN [Waits] AS [W2] ON [W2].[RowNum] <= [W1].[RowNum] GROUP BY [W1].[RowNum], [W1].[wait_type], [W1].[WaitS], [W1].[ResourceS], [W1].[SignalS], [W1].[WaitCount], [W1].[Percentage] HAVING SUM ([W2].[Percentage]) - [W1].[Percentage] < 95 -- percentage threshold ) SELECT [WaitType] ,MAX([Wait_S]) as [Wait_S] ,MAX([Resource_S]) as [Resource_S] ,MAX([Signal_S]) as [Signal_S] ,MAX([WaitCount]) as [WaitCount] ,MAX([Percentage]) as [Percentage] ,MAX([AvgWait_S]) as [AvgWait_S] ,MAX([AvgRes_S]) as [AvgRes_S] ,MAX([AvgSig_S]) as [AvgSig_S] FROM ress group by [WaitType];