標籤:extented events xevent 擴充事件
SQL Server
擴充事件(Extended Events
)--
使用擴充事件跟蹤監控死結指令碼實現
-- Create a new event session (it is better to create a new session and not modify the system’s built-in session “system_health”):CREATE EVENT SESSION [Deadlock_Monitor] ON SERVERADD EVENT sqlserver.xml_deadlock_reportADD TARGET package0.asynchronous_file_target(SET filename= N‘C:\temp\deadlock.xel‘ )WITH(MAX_MEMORY=4096 KB,EVENT_RETENTION_MODE=ALLOW_SINGLE_EVENT_LOSS,MAX_DISPATCH_LATENCY=10 SECONDS,MAX_EVENT_SIZE=0 KB,MEMORY_PARTITION_MODE=NONE,TRACK_CAUSALITY=OFF,STARTUP_STATE=ON)
-- Enable the session to start capturing events:ALTER EVENT SESSION [Deadlock_Monitor] ON SERVER STATE = start;
-- To see how many deadlocks have been captured by the session since it started running, you can run this query:select COUNT(*) from sys.fn_xe_file_target_read_file (‘c:\temp\deadlock*.xel‘, ‘c:\temp\deadlock*.xem‘, null, null)
-- To get a list of the captured deadlocks and their graphs you can execute this query:select xml_data.value(‘(event[@name="xml_deadlock_report"]/@timestamp)[1]‘,‘datetime‘) Execution_Time,xml_data.value(‘(event/data/value)[1]‘,‘varchar(max)‘) Queryfrom (select object_name as event, CONVERT(xml, event_data) as xml_datafrom sys.fn_xe_file_target_read_file(‘c:\temp\deadlock*.xel‘, ‘c:\temp\deadlock*.xem‘, null, null)) v order by Execution_Time
-- If you want the session to stop capturing events (until you enable the session again), you can use this query:ALTER EVENT SESSION [Deadlock_Monitor] ON SERVER STATE = stop;
-- If you want to completely remove (delete) the session from the server, you can use this query:DROP EVENT SESSION [Deadlock_Monitor] ON SERVER
-- If you want to configure other events too, you can query these tables to find out what you can trace and how:--Show the possible targets:SELECT xp.[name], xo.*FROM sys.dm_xe_objects xo, sys.dm_xe_packages xpWHERE xp.[guid] = xo.[package_guid]AND xo.[object_type] = ‘target‘ORDER BY xp.[name];
--Show the possible actionsSELECT xp.[name], xo.*FROM sys.dm_xe_objects xo, sys.dm_xe_packages xpWHERE xp.[guid] = xo.[package_guid]AND xo.[object_type] = ‘action‘ORDER BY xp.[name], xo.[name];
本文出自 “SQL Server Deep Dives” 部落格,請務必保留此出處http://ultrasql.blog.51cto.com/9591438/1600520
SQL Server擴充事件(Extended Events)-- 使用擴充事件跟蹤監控死結指令碼實現