--==========================================================
--参考:http://msdn.microsoft.com/zh-cn/library/ms188073.aspx
--返回发布服务器上属于一个或多个发布的订阅的当前状态信息，
--并为每个返回的订阅返回一行。 在分发服务器上对分发数据库
--执行此存储过程，用于监视复制。--@publication_type=0:事务发布
--@mode=3:只返回带错误或已生成在达到阈值度量指标时发出的警告的订阅。
EXEC distribution.dbo.sp_replmonitorhelpsubscription
@publisher = null,
@publisher_db = null,
@publication = null,
@publication_type =0,
@mode = 3,
@topnum = 0,
@exclude_anonymous = null,
@refreshpolicy = 0--===========================================================
--参考:http://msdn.microsoft.com/zh-cn/library/ms186304.aspx
--返回发布服务器上一个或多个发布的当前状态信息。 在分发服务器
--的分发数据库上执行此存储过程，用于监视复制。--@publication_type=0:事务发布
EXEC distribution.dbo.sp_replmonitorhelppublication
@publisher = null,
@publisher_db = null,
@publication = null,
@publication_type = 1,
@refreshpolicy =0
--==============================================================

--================================================
--为每个发布数据库返回有关滞后时间、吞吐量和事务计
--数的复制统计信息。 此存储过程在发布服务器的任何数
--据库中执行。
--参考:http://msdn.microsoft.com/zh-cn/library/ms190486.aspxexec sp_replcounters
--================================================

--==========================================================
--查看是否因为发布库日志太多导致日志读取慢
Use <published database>
GO
-- Total records in the log
SELECT count(*) FROM ::fn_dblog(NULL, NULL)
GO
-- Records marked for REPLICATION
SELECT count(*) FROM ::fn_dblog(NULL, NULL)
WHERE Description='REPLICATE'
GO

--========================================================
--使用发布库日志来查找大事务
--在发布库上运行
SELECT [Transaction ID],COUNT(1) AS LogCount
FROM ::fn_dblog(NULL, NULL) WHERE Description='REPLICATE'
GROUP BY [Transaction ID]
HAVING COUNT(1)>500
--===============================================================
--在分发库上查找大事务
USE distribution
GO
SELECT xact_seqno, COUNT(*) AS [COUNT]
INTO #MSrepl_commands FROM dbo.MSrepl_commands
GROUP BY xact_seqno
HAVING COUNT(*)>100
SELECT t.xact_seqno,t.entry_time,c.[count]
FROM MSrepl_Transactions t INNER JOIN
#MSrepl_commands c ON t.xact_seqno=c.xact_seqno
ORDER BY c.count DESC,t.entry_time

-=============================================================
--当前msrepl_commands表中命令涉及表的分布情况
USE distribution;
GO
WITH cte AS(
SELECT  a.xact_seqno,b.entry_time,
REPLACE(CONVERT(NVARCHAR(1024),
SUBSTRING(a.command,17,1024)),'[dbo].[sp_MS','') commands
FROM dbo.MSrepl_commands a(NOLOCK)
JOIN MSrepl_transactions b(NOLOCK)
ON a.xact_seqno=b.xact_seqno
)
SELECT SUBSTRING(commands,9,CHARINDEX(']',commands)-9),COUNT(1)
FROM cte WHERE CHARINDEX(']',commands)>9
GROUP BY SUBSTRING(commands,9,CHARINDEX(']',commands)-9)
ORDER BY COUNT(1) DESC