我查詢system_health會議,並注意到,不是所有的事件都被退回。今天肯定有很少的死鎖,但這些不在輸出中。SQL Server擴展事件沒有新的事件
我碰到this connect filing但是從問題已在SQL Server 2008 SP2已經解決的意見。但是我的版本是SQL Server 2008 SP3 Standard。這裏有一些更多的細節。
所以這是一個錯誤還是我查詢它錯了嗎?
<RingBufferTarget truncated="1" eventsPerSec="31291" processingTime="209" totalEventsProcessed="6540" eventCount="1947" droppedCount="0" memoryUsed="4193813">
SELECT TOP 1 e.event.value('(@timestamp)[1]','datetime') AS MaxDate, GETDATE() Today
FROM
(SELECT (SELECT
CONVERT(xml, target_data)
FROM sys.dm_xe_session_targets st
JOIN sys.dm_xe_sessions s ON
s.address = st.event_session_address
WHERE s.name = 'system_health'
AND st.target_name = 'ring_buffer'
)AS [x]
FOR XML PATH(''), TYPE
) AS the_xml(x)
CROSS APPLY x.nodes('x/RingBufferTarget/event') e (event)
ORDER BY MaxDate DESC
MaxDate Today
2013-01-09 20:05:31.853 2013-01-11 15:22:37.887