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小編給大家分享一下Sqlserver鏡像切換操作并檢查鏡像同步情況的示例分析,相信大部分人都還不怎么了解,因此分享這篇文章給大家參考一下,希望大家閱讀完這篇文章后大有收獲,下面讓我們一起去了解一下吧!
主節(jié)點(diǎn)上:
ALTER DATABASE [dbname] SET SAFETY FULL
ALTER DATABASE [dbname] SET PARTNER FAILOVER
切換完畢到從節(jié)點(diǎn),新的主節(jié)點(diǎn)上:
ALTER DATABASE [dbname] SET SAFETY OFF
檢查鏡像同步情況:
SET NOCOUNT ON
DECLARE @db_name varchar(100)
DECLARE @dblist TABLE([db_name] varchar(100))
DECLARE @a TABLE(
database_name SYSNAME
,[role] INT
,mirroring_state INT
,witness_status INT
,log_generation_rate INT
,unsent_log INT
,send_rate INT
,unrestored_log INT
,recovery_rate INT
,transaction_delay INT
,transactions_per_sec INT
,average_delay INT
,time_recorded DATETIME
,time_behind DATETIME
,local_time DATETIME
)
--導(dǎo)出鏡像數(shù)據(jù)庫名列表
insert into @dblist
select a.name
from sys.sysdatabases a (nolock)
join sys.database_mirroring b (nolock) on a.dbid=b.database_id
where mirroring_guid is not null
EXEC msdb.dbo.sp_dbmmonitorupdate
EXEC msdb.dbo.sp_dbmmonitorupdate --若server是初次執(zhí)行這個sp,可能不會產(chǎn)生數(shù)據(jù),所以需要再執(zhí)行一次
--每個鏡像數(shù)據(jù)庫的相關(guān)記錄通過循環(huán)全部導(dǎo)入表變量
while exists(select * from @dblist)
begin
set @db_name=(select top 1 [db_name] from @dblist)
delete @dblist where [db_name]=@db_name
INSERT INTO @a
EXEC msdb.dbo.sp_dbmmonitorresults @db_name
,0 --返回行數(shù):-1行;-前條;-最近兩小時行數(shù);
,0 --0表示不調(diào)用sp_dbmmonitorupdate,表示調(diào)用
end
SELECT database_name
,CASE [role] WHEN 1 THEN '主體數(shù)據(jù)庫'
WHEN 2 THEN '鏡像數(shù)據(jù)庫'
ELSE NULL END AS 'db_role'
,CASE mirroring_state WHEN 0 THEN '已掛起'
WHEN 1 THEN '已斷開'
WHEN 2 THEN '正在同步'
WHEN 3 THEN '掛起故障轉(zhuǎn)移'
WHEN 4 THEN '已同步'
ELSE NULL END AS mirroring_state
,CASE witness_status WHEN 0 THEN '未知'
WHEN 1 THEN '已連接'
WHEN 2 THEN '已斷開'
ELSE NULL END AS witness_status
,unsent_log AS 'unsent_log[kb]'
,unrestored_log AS 'unrestored_log[kb]'
,send_rate AS 'send_rate[kb/s]'
,recovery_rate AS 'recovery_rate[kb/s]'
,transaction_delay AS 'transaction_delay/ms'
,transactions_per_sec
,average_delay
,time_recorded
,time_behind
,local_time
FROM @a
以上是“Sqlserver鏡像切換操作并檢查鏡像同步情況的示例分析”這篇文章的所有內(nèi)容,感謝各位的閱讀!相信大家都有了一定的了解,希望分享的內(nèi)容對大家有所幫助,如果還想學(xué)習(xí)更多知識,歡迎關(guān)注億速云行業(yè)資訊頻道!
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