SQL 2012 :: Can't Remove DB Mirroring
Oct 26, 2012
I created a mirrored DB, added a new datafile to the principal using a path the mirror can't access. As a result the mirroring session was suspended because the mirror stated: "CREATE FILE encountered operating system error 3(The system cannot find the path specified.) while attempting to open or create the physical file".
Fine, so I disabled mirroring on the principal (SET PARTNER OFF) which worked just fine, but the mirror stayed in a mirrored state, Object Explorer saying:"(Mirror, Disconnected / In Recovery). Sooo, I tried to disable db mirroring on the mirror using ALTER DATABASE db SET PARTNER OFF;, which completed successfully, but the DB STILL remained in a mirrored-configuration.
I tried ALTER DATABASE db SET PARTNER FORCE_SERVICE_ALLOW_DATA_LOSS which resulted in
"Msg 1404, Level 16, State 4, Line 1
The command failed because the database mirror is busy. Reissue the command later."
I tried taking the DB offline or restoring it from a backup, but all these operations resulted in "The operation cannot be performed on database "db" because it is involved in a database mirroring session or an availability group."
The only solution I can think of at the moment is shutting down the instance and deleting the data and log-files of the mirrored db, which would be just fine because this is just a test installation, but it would be not quite as easy in a productive environment.
Is there any other way to remove the mirrored state from a disconnected mirror or to simply get rid of the db entirely to perform a recovery?
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Oct 29, 2015
I am setting up mirroring on one of our live databases tonight. The database is quite big, around 300GB.
At the moment we are doing log backups once a day and full backups every night.
My question is, when I set up the mirror, will the log backups on my Principle DB affect the mirror in anyway?
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Jun 19, 2014
One of my client asking mirroring between two server with witness.Is it possible witness and mirror in same server(with same instance)? OR Is it possible witness and primary in same server(with same instance) ? Best method to establishing mirroring with in two servers(with witness) ?
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Sep 24, 2014
I am trying to configure database mirroring with sql server 2012.
My principal instance and my mirror instance are on different server.
Both SQL Server service run with NT SERVICEMSSQLSERVER.
Now when I am configuring database mirroring, which service account should I use ? database account or server account ?
Instead of using domain account, can I :
1- create local account on my two server
2- Add these 2 logins in my 2 instances.
3- use these local account for configuring database mirroring.
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Jan 27, 2015
After breaking the mirroring database to allow testing on the DR site, is the only way to re-establish the mirroring again to copy the backups from the actual production site ?. Can something be done on the DR site to put back the mirroring after the test ?.
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Aug 26, 2015
I have the following mirroing setup for DR.
Prinical(ServerA) and Mirror(ServerB)
When we do a DR test we do manual failover from Principal(ServerA) to Mirror(ServerB)
Now
ServerB is Prinicpal
ServerA is Mirror
Applications do their testing against the new principal which is ServerB but dont want to take those changes or sync to ServerA(Mirror).
Is there any way to do this without breaking the mirror?
Finally It will go back to original setup after the test which Server A is Principal and Server B will be its mirror.
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May 19, 2015
As part of patching i need to remove the database from availability group and add the database after patching is done , how can i achieve this ?
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Jul 13, 2014
what are the commonly used system tables for mirroring
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Jul 14, 2014
Need to know some of the DMV'S and System Tables related to Database Mirroring.
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Sep 30, 2014
I'm setting up AG replication over our WAN (1GB MPLS). Using sql stress, AG replication quickly falls behind. Network throughput plateaus at ~14Mbs.
The problem ISN'T NETWORK
using conventional mirroring, the same workload never falls behind, throughput plateaus at ~26Mbs.
it's almost like log stream compression isn't happening for AG...
both mirroring and AG are using async.
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Jan 24, 2015
I have created a new login in principle server and provided dbowner permission to principle db.
How do I transfer this login to mirror server and assign the same permission to mirror dd?
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Apr 22, 2015
As the title suggests we are looking to change the service account of a SQL mirror implementation. I will be using the same account on all 3 servers involved in the configuration.
I know each server requires the account of the other two adding but as this will be the same account I assume this doesn't apply?
Also for mirrored databases already set up would I need to reconfigure the security for each one?
Is there anything I am missing?
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Jul 8, 2014
I have added ndf to tempdb for checking performance improvement.... Now I want to remove the ndf file... I am using below command...
USE tempdb
GO
DBCC SHRINKFILE (3, TRUNCATEONLY);
GO
use master
go
ALTER DATABASE TEMPDB Remove FILE tempdev1
Results:
DbIdFileIdCurrentSizeMinimumSizeUsedPagesEstimatedPages
23766476643232
Error:-
(1 row(s) affected)
DBCC execution completed. If DBCC printed error messages, contact your system administrator.
Msg 5042, Level 16, State 1, Line 1
The file 'tempdev1' cannot be removed because it is not empty.
Note:
=>I restarted SQLServer from SSMS and then ran same commands mentioned above ,......and getting same error...
=> I executed above commands and restarted services...no change...
How to remove / drop ndf file...
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Jun 5, 2015
How to remove first and Last character from below select query.
SELECT LTRIM(RTRIM(REPLACE(col_1,'Year_',''))),
FROM Years
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Jun 10, 2014
I have to mirror 3 DBs on my sql server instance . I have restored there full backups and log backups on mirror.I have also created endpoints on principal and mirror using default ports 5022 and 5023.
know if i can use the same endpoint for the databases on principal instance ?
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Jun 18, 2014
I was told that if I wanted to setup mirroring between multiple instance on the same server that each endpoint had to be different number. Is that true? Or can I use the default 5022 for each instance?
Ex.
Server1Instance1
Use endpoint 5022
Server1Instance2
Use endpoint 5022
VS
Server1Instance1
Use endpoint 5022
Server1Instance2
Use endpoint 5023
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Feb 4, 2015
We currently use Zabbix to monitor our SQL Servers, generally we use Perf_Counters to gather performance information (CPU Usage, Memory, Blocked process etc.), Zabbix also lets us monitor services as to whether they are up or down. I have searched google looking for any information regarding the monitoring of AlwaysOn/Mirroring within Zabbix and to date ave found nothing. What I am looking to alert on is an indication that Mirroring has stopped/ been interrupted with say something like "Not Synchronized"... Zabbix and monitoring SQL Server 2012 and specifically monitoring AlwaysOn...
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Feb 18, 2014
We configured IDERA SQL Safe for backups and restores.we setup an email for notifications. One day we performed manual backup operation for 150 databases from SQL Safe tool. Unnoticed it backed up to C:Backup folder.
We got alerts with the report of backups on C: drive. Then we moved backup files to respective folders.But, I could not clear the records from the report, its been 25 days, still we are receiving the alerts as below.How can I clear this report or to configure or setup anything to avoid this, in future as well.
Below is the sample records from the report. I need this report to be cleared.
Subject: SQL Safe Validation Report
The following files are recorded in the SQLSafe repository, but no longer exist in their locations:
C:BackupLUXOR_DB_GroupEPF_Diff_201402050045 (1 of 1).safe
C:BackupLUXOR_DB_InsightEPF_Diff_201402050045 (1 of 1).safe
C:BackupLUXOR_DB_IMEPF_Diff_201402050045 (1 of 1).safe
C:BackupLUXOR_DB_SiteEPF_Diff_201402050045 (1 of 1).safe
C:BackupLUXOR_DB_SiEPF_Diff_201402050045 (1 of 1).safe
C:BackupLUXOR_DB_ICEPF_Diff_201402050045 (1 of 1).safe
C:BackupLUXOR_DB_vdbEPF_Diff_201402050045 (1 of 1).safe
C:BackupLUXOR_DB_M_SEPF_Diff_201402050045 (1 of 1).safe
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Apr 3, 2014
I have table like
name
22rajuvar
45 vamsgui
87 praveen
67kumar
32 vamshi
Above field mix with digits and character. I want to remove digits. I want o/p like ............
name
rajuvar
vamsgui
praveen
kumar
vamshi
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Apr 18, 2014
I The requirement is to unload all columns data into csv file using bcp with pipe delimiter, but the condition is to remove milliseconds part of a datetime column.
Ex:
2014-02-19 17:12:14.967 remove .967 from data while unloading into csv.
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Jun 13, 2014
I am trying to remove the dates from a query. my goal is to load it in ssas and add a time dimension. Right now i have to change the dates evrytime i run reports (monthly). Here is the query
drop table #tmptmp
SELECT *, (DATEDIFF(day, enrollmentsDate, ShipmentDate))
- ((DATEDIFF(WEEK, enrollmentsenttDate, InitialShipmentDate) * 2)
+(CASE WHEN DATENAME(DW, enrollmentsentDate) = 'Sunday' THEN 1 ELSE 0 END)
+(CASE WHEN DATENAME(DW, ShipmentDate) = 'Saturday' THEN 1 ELSE 0 END)
[Code] .....
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Oct 16, 2014
How to remove clustering configuration in windows server 2008 r2 after it shows clustering events as critical and status down...
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Nov 18, 2014
How to remove Character From Column,Just Character. I want to work with number.
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Aug 4, 2015
I am in plan to implement following for backup of one of our database Enable Full recovery mode
1- Create full backup nightly
2- Create transaction log backup after every 25 min
as I am taking full backup every night, I think I can remove transaction log file backups at the time of full backup, as we can apply transaction log backup over full backup.My question is regarding removal of transaction log backups.
-Should I remove all transaction log backups and then execute full backup?
-Should I execute full backup and remove all transaction log backup older than 24Hrs ?
-Do I have to consider SCN or related info before deleting any transaction log backup ?
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Oct 14, 2015
Environment:-
Windows 2012 R2,
SQL 2012 (Primary Replica)
SQL 2012 (Seondary Replica)
SQL 2012 (Secondary Replica over WAN site)
There are database replicating on three SQL servers. WAN line is having performance issue because of limited bandwidth I have to remove SQL secondary replica over WAN site temporarily and add it again later when the WAN line is upgraded with between bandwidth What is the best practice to remove secondary replica and replicating database and add later from SQL management studio without interruptions on databases?
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May 13, 2015
I've read here at [URL] that with 32 bit it's recommended to only have 10 database mirrors per instance. However, is there a limit for 64 bit SQL Server 2012?
We're having a problem where we have about 300+ databases and now any new db's we add are timing out when it comes to setting up mirroring and am wondering if this is limited by the instance.
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Mar 1, 2014
How to remove non alpha chars from a column ?
I googled the following code
Create Function [dbo].[RemoveNonAlphaCharacters](@Temp VarChar(1000))
Returns VarChar(1000)
AS
Begin
[code]....
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Mar 5, 2014
I am looking for a function or way to return only results which does not include appended characters to order numbers.
For instance, below is a list of order numbers. I only want the order number that is SO-123456
OrderNumbers
SO-123456
SO-123456-01
SO-123456-2
SO-123457
SO-123457-1
SO-123457-02
SO-123458
I would like my query to only show the below results
SO-123456
SO-123457
SO-123458
What functions or query methods could achieve this?
I was hoping for something similar to RTRIM but that is only specific to white space.
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Aug 7, 2014
I am having problems building a CTE. I have a table:
declare @tbl table ( ID int, S time(0), E time(0) )
with the following data:
insert@tbl ( ID, S, E )
values ( 1, '03:00', '05:00' ),
( 1, '04:00', '06:30' ),
( 1, '22:00', '23:00' ),
( 1, '23:00', '23:40' ),
( 1, '23:30', '23:45' )
I need to build a CTE that will eliminate overlaps and produce the following result:
ID S E
-- --------- ---------
1 03:00:00 06:30:00
1 22:00:00 23:45:00
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Jan 27, 2015
We are runnning on SQL Server 2012 SP1 + CU9.
I have found some articles with no publication in our transactional replication.
For example, running this:
select p.publication,
a.publication_id,
a.article
from dbo.MSArticles as a
left outer join dbo.MSpublications as p
on a.publication_id = p.publication_id
shows this:
NULL1org_Community
NULL3org_Community
Purchasing to EDW5org_Community
NULL1org_Division
NULL3org_Division
Purchasing to EDW5org_Division
How can I get rid of the articles that are not part of a publication?
I can't use sp_droparticle because it requires a publication which these articles do not have.
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May 1, 2015
I have a column A as 'text' datatype. This has CR-LF in between data.How to remove it.
I am trying to copy result from SQL to Excel
Eg:
A CR LF
ABC CR LF
DVB CR LF
The output should be:
A
ABC DVB
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Aug 20, 2015
I am creating a report query that returns all unreconciled P/O lines. I am near completion but I am unable to find a way to remove the reconciled records.
I have included a script to produce some sample table, data & query.
The recordset dispalys 6 rows. All reconciled Supplier Invoices are duplicated and have transaction codes 40, 50 and reconcile code of 9 (5024, 921689471).
All unreconciled only appear once and have transaction codes 40 and reconcile code of 0 (4835 & 921978016). These are the only records that I want to show.
CREATE TABLE [dbo].[Purch_Ledger](
[EPDIVI] [nvarchar](3) NULL,
[EPSUNO] [nvarchar](10) NULL,
[EPSINO] [nvarchar](24) NULL,
[EPDUDT] [numeric](8, 0) NULL,
[EPTRCD] [numeric](2, 0) NULL,
[code].....
Whatever I try I cant find a way to get rid of the unwanted records.
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Sep 14, 2015
I have a table that is riddled with weird characters. So far I have found an escape character for PDF files and a trademark sign. These characters are crashing my SSIS packages. I am able to remove these characters with an update script...
Update TABLE
set LEAD_NOTES__C = Replace(LEAD_NOTES__C, nchar(65533) COLLATE Latin1_General_BIN2, '!');
Update TABLE
set LEAD_NOTES__C = Replace(LEAD_NOTES__C, nchar(1671) COLLATE Latin1_General_BIN2, '!');
This works fine, but my question is...
I would like to write a script that removes all foreign characters with the exception of the normal characters like (@,#,$,%,etc). I need a dynamic process that handles this so I am not losing time sifting through over 20,000 rows of data and changing my update script to remove a specific column. Although this method works, I would prefer a dynamic query. I intend to wrap this in a stored procedure that loops through all columns in a table (as parameter).
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