SQL SERVER-Extendevent捕获堵塞
CREATE EVENT SESSION [Block_Watch] ON SERVER ADD EVENT sqlserver.blocked_process_report( ACTION(sqlserver.client_app_name,sqlserver.client_hostname,sqlserver.database_name,sqlserver.nt_username,sqlserver.sql_text,sqlserver.username)) ADD TARGET package0.event_file(SET filename=N'D:\XEvent\Block_Watch.xel') WITH (MAX_MEMORY=4096 KB,EVENT_RETENTION_MODE=ALLOW_SINGLE_EVENT_LOSS,MAX_DISPATCH_LATENCY=30 SECONDS,MAX_EVENT_SIZE=0 KB,MEMORY_PARTITION_MODE=NONE,TRACK_CAUSALITY=OFF,STARTUP_STATE=ON) GO
--解析xel数据 select SWITCHOFFSET(n.value('@timestamp','Datetime'),'+08:00') as EventTime, n.value('(data[@name="duration"]/value)[1]', 'int') as duration, n.value('(data[@name="statement"]/value)[1]', 'nvarchar(max)') as statement, n.value('(action[@name="database_name"]/value)[1]', 'nvarchar(128)') as database_name, n.value('(action[@name="client_app_name"]/value)[1]', 'nvarchar(128)') as client_app_name, n.value('(action[@name="username"]/value)[1]', 'nvarchar(128)') as username, n.value('(action[@name="client_hostname"]/value)[1]', 'nvarchar(128)') as client_hostname from (select cast(event_data as XML) as event_data from sys.fn_xe_file_target_read_file('D:\XEvent\EE_SlowQueryLog_0*.xel', null, null, null)) ed cross apply ed.event_data.nodes('event') as q(n)
--设置阀值,超过这阀值系统才会捕获,以下设置为5S
sp_configure 'show advanced options', 1 ; GO RECONFIGURE ; GO sp_configure 'blocked process threshold', 5 ; GO RECONFIGURE ; GO