SMO : Mirroring Partner Instance
Apr 25, 2007
Hi, i am working with SMO object,
At the time of accessing remote(LAN) database server I encountered the
following message: "MirroringPartnerInstance" : Undefined error.
I m not able to figure out whats the exact problem is..
i had gone through the following link too but doesn't make any sense to me :
msdn2.microsoft.com/en-us/library/microsoft.sqlserver.management.smo.database.mirroringpartnerinstance.aspx
All i understand is i need to set some property of mirroring partner.
Does any on have any idea how to resolve this problem
Thanking you all in advance
Vivek
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Oct 25, 2007
Hello,
Am I reading it wrong or can I have a developer edition as a partner?
http://www.microsoft.com/technet/prodtechnol/sql/2005/dbmirror.mspx Please take a look at the Database Mirroring and SQL Server 2005 Editions section.
Anyone knows?
Thank you.
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Jan 27, 2006
I am getting this error while trying to setup mirroring.
"Neither the partner nor the witness server instance for database "shop" is available. Reissue the command when at least one of the instances becomes available. (Microsoft SQL Server, Error: 1431)"
I am just using principal and mirror server, there is no witness server. I have tried fully qualified name and ip for the servers also. I can connect from the principal server to the mirror server using the management studio and it also creates endpoints on prinicipal and witness. But then gives me an error that it cannot find the instance of the mirror server and if I try again it gives the error above. I can also telnet to port 5022.
I have used -T1400 as the startup parameter.
I did the backup and recovery based on this link http://msdn2.microsoft.com/en-us/library/ms189053.aspx and the mirror server is in recovery mode now.
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Jul 7, 2007
Can someone explain what does this mean? This is from http://www.microsoft.com/technet/prodtechnol/sql/2005/dbmirror.mspx
<quote>However, all these techniques for coordinating client redirection with a database mirroring have an important limitation. Database mirroring occurs only at the database level, not the server level. Be careful if your application relies on querying several databases on a server, or uses multi-part object names to query across several databases. When several databases reside on one server, and they are mirrored to a standby server, it is possible that one of several databases might fail over to the standby but the others remain on the original server. In that case, you might need one connection per database that you are querying, so that you do not attempt cross-database queries on a standby server where only one database is a principal and the remaining are mirrors.</quote>
Also I read somewhere that if one mirrored DB fails, all other mirrored DB should also be transferred to the mirror.
For example: Let's say Srv1 (principle) and Srv2 (mirror) and Srv3(witness) are SQL servers with only default instances. The SQL instance has 4 DBs (DB1, DB2, DB3, DB4) and all of them are mirrored to Srv2.
An ASP.NET application has four seperate connection strings like:
objConn1 --> Data Source=Srv1;Failover Partner=Srv2;Initial Catalog=DB1;Integrated Security=True;
objConn1.connect();
objConn2 --> Data Source=Srv1;Failover Partner=Srv2;Initial Catalog=DB2;Integrated Security=True;
objConn2.connect();
objConn3 --> Data Source=Srv1;Failover Partner=Srv2;Initial Catalog=DB3;Integrated Security=True;
objConn3.connect();
objConn4 --> Data Source=Srv1;Failover Partner=Srv2;Initial Catalog=DB4;Integrated Security=True;
objConn4.connect();
If DB2 failsover to Srv2 (mirror), why should all other DBs be failedover?
Thanks
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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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Oct 25, 2006
Hello,
I've got a question about failover with the database mirroring.
I have 3 servers, 2 with SQL 2005 and 1 with SQL Express as witness.
After getting some problems to install database mirroring with Windows authentification, i had to create an authentification by certificate.
All goes well but my problem is about my primary instance SQL alias.
The alias on the primary doesn't follow on the secondary when the primary is down.
I've searched on forums and in the internet SQL web sites, but i didn't find anything.
I create another alias on the secondary but i don't know how to modify it in T-SQL...
I would like to know if there's any solution to modify an SQL instance alias by transact-SQL? or if anyone has already install on its servers, a fail over automatic with one instance alias with data mirroring in T-SQL?
Thank you all for your help...
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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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May 12, 2006
command in principal server
ALTER DATABASE database name
SET PARTNER = 'TCP://<mirror_server_name>:5022'
return:
Msg 1413, Level 16, State 1, Line 1
Communications to the remote server instance 'TCP://<mirror_server_neme>:5022' failed before database mirroring was fully started. The ALTER DATABASE command failed. Retry the command when the remote database is started.
This problem is only in production database any testing database include adventureworks mirroring sucessfuly. Why is problem:?
size? database > 9GB
slow HW? Principal database Intel D 3Ghz,4GB RAM, 4x 15k RPM HDD RAID 5 / Mirror database 2x Xeon 3Ghz,4GB RAM,6x HDD 10k RPM RAID 10
Slow LAN? both servers connect 1Gb/s
please help me
THX
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Jan 31, 2008
I'm going to be setting up DB mirroring between two SQL Server 2005 boxes. Since these are on two different servers, can the instance names be the same? Is there any reason NOT to do so if the mirror server is going to be used exclusively for DB mirroring?
For example: if the my primary DB is located on SERVER1INSTANCE1, can the mirror be SERVER2INSTANCE1 or do the instance names have to be different even though they're on different boxes.
Thanks!
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Jul 23, 2005
Hi all,Here is the table and DML statmentsCREATE TABLE [jatpartnerMst] ([rowid] [int] ,[partnerid] [int] NULL ,[mcstat] [int] DEFAULT (1), -- 1 Pending ,2 Approved[sf] [varchar] (20))INSERT INTO [jatpartnerMst]([rowid],[partnerid],[mcstat],[sf])VALUES(1,1,2,'active')INSERT INTO [jatpartnerMst]([rowid],[partnerid],[mcstat],[sf])VALUES(2,1,2,'active')INSERT INTO [jatpartnerMst]([rowid],[partnerid],[mcstat],[sf])VALUES(3,1,2,'active')INSERT INTO [jatpartnerMst]([rowid],[partnerid],[mcstat],[sf])VALUES(4,1,2,'active')INSERT INTO [jatpartnerMst]([rowid],[partnerid],[mcstat],[sf])VALUES(5,1,1,'active')INSERT INTO [jatpartnerMst]([rowid],[partnerid],[mcstat],[sf])VALUES(6,1,2,'inactive')INSERT INTO [jatpartnerMst]([rowid],[partnerid],[mcstat],[sf])VALUES(7,1,2,'inactive')INSERT INTO [jatpartnerMst]([rowid],[partnerid],[mcstat],[sf])VALUES(8,1,2,'inactive')INSERT INTO [jatpartnerMst]([rowid],[partnerid],[mcstat],[sf])VALUES(9,2,2,'active')INSERT INTO [jatpartnerMst]([rowid],[partnerid],[mcstat],[sf])VALUES(10,2,1,'active')INSERT INTO [jatpartnerMst]([rowid],[partnerid],[mcstat],[sf])VALUES(11,1,2,'active')What I wish to find is the latest record on the top and it's otherrecordse.g If partnerID 1 is changed it goes to the bottom of the table , atany given time I am interested only in max(rowid) for a partner withstat 1 or 2I am using this queryselect * from jatpartnerMst where rowid in (select max(rowid) fromjatpartnermst where mcstat in (1,2) group by partnerid,mcstat )This query does not give me the latest.On using this queryselect * from jatpartnerMst where rowid in (select max(rowid) fromjatpartnermst where mcstat in (1,2) group by partnerid,mcstat )order by rowid descThe partner's two records get seperated . I wish to show them followingone another.So the output should be1112active511active922active1021active11 & 5 rowids are following each other because they are rows of samepartner and 11 is the most recent row [ because new rows are insertedat the end]Is it possible to do the above using single queryI am using cursor to do the same.With Warm regardsJatinder
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Oct 25, 2006
I've read that when this run's, it removes all db mirroring information on that db. What exactly does it remove?
Here's my senario:
We are using SQL 2005€™s db mirroring process. We are using the certificate method of authentication between the principle and the mirror db€™s.
My question is that when the ALTER DATABASE dbname SET PARTNER OFF is run, does it remove these certificate settings as well? In other words when I want to enable the db mirroring, will I need to recreate these certificates or just recreate the endpoints to use these certificates?
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Apr 21, 2006
Hi!
I have the following error during setting partner on mirror server
Msg 1431, Level 16, State 4, Line 1
Neither the partner nor the witness server instance for database "masterserver" is available. Reissue the command when at least one of the instances becomes available.
The partner is available through telnet. I've also checked ports vai netstat and have no found errors.
There are two noteworthy erros in the error log at mirror server
Error: 9642, Severity: 16, State: 3.
and
An error occurred in a Service Broker/Database Mirroring transport connection endpoint, Error: 8474, State: 11. (Near endpoint role: Target, far endpoint address: '')
Security settings it seems are set accurately.
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Oct 11, 2012
We have a database,which has been mirrored.Also,We have an application which uses OpenRowSet to connect to this database.
Is it possible to set "Failover partner" in OpenRowSet connection string,so when we failover from Prinicple server to the mirrored database,The application still will continue to work?
Example:
select
*
from openrowset(
'SQLOLEDB',
'Data Source=Server1;Failover Partner=Server2;trusted_connection=yes;','select top 10 from Database1.dbo.Table1'
) temp
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May 24, 2006
I need to connect to mirrored SQL servers (Developer Edition) using OLE DB, I tried both OLE DB and ODBC, but it doesn't work
I used connection ODBC string:
Driver={SQL Native Client};Server=10.0.1.161;Failover Partner=10.0.1.162;Uid=test;Pwd=test;Database=TestDB
if server 161 is principal and server 162 mirror, it connects ok, but
when I exchange server roles, connect fails (the error message is:
Cannot open database "TestDB" requested by the login. The login failed.
in LOGIN)
the connect string using OLE DB is:
Provider=SQLOLEDB.1;Persist Security Info=False;User
ID=test;Password=test;Failover Partner=10.0.1.162;Initial
Catalog=TestDB;Data Source=10.0.1.161;Use Procedure for Prepare=1;Auto
Translate=True;Packet Size=4096;Use Encryption for Data=False;Tag with
column collation when possible=False
error message is the same
when I try to connect using VS 2005 using connection string
Database=TestDB;User Id=test;Password=test;Server=10.0.1.161;Failover
Partner=10.0.1.162, it works OK
i have installed SQL server 2005 (on local - client machine) with SQL Native Client and also
SQL Server service pack 1
Is there any way how to connect from OLE DB?
Thanks
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Mar 27, 2008
We have a pair of SQL 2005 SP2 with Rollups clusters. We have a series of DB's that we are migrating from an existing SQL 2000 cluster. I have scripted the process, however on one of the test DB's, it goes to "In Recovery" as soon as I issue the Set Partner statement. There are other DB's on the same cluster mirrored with no problems. As we have a bunch of DB's to migrate, I want to figure out what would cause it to start a recovery. After the initial restores are done, it is in "Restoring" for a status so everything works up to that point.
Thanks
Jon Macy
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Dec 27, 2006
i tried to set up mirroring having only principal and mirror. mirroring endpoints were easily created for both servers. when i try to add the partner name it responds with
Msg 1418, Level 16, State 1, Line 1The server network address "TCP://machine1.domain.com:5022" can not be reached or does not exist. Check the network address name and that the ports for the local and remote endpoints are operational.
On the log of machine1 i see,
Database Mirroring login attempt by user 'NT AUTHORITYANONYMOUS LOGON.' failed with error: 'Connection handshake failed. The login 'NT AUTHORITYANONYMOUS LOGON' does not have CONNECT permission on the endpoint. State 84.'.
i have similar problems as in
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=1020144&SiteID=1
i am a sysadmin on both SQL Servers and have connect permission on both end points.
Both the endpoints are in started state and listening to all IP's
Both services are as 'Local System'
As per what was mentioned in the above post to add a 'domain/machine$' user did not help.
Tried using setspn.exe to add a new SPN MSSQLsvc/<HOST>:<MIRRORINGPORT> did not work. an ERROR comes 'not enough privileges'
setup shows the following SPN only on both
HOST/Machine name
HOST/Machine name.Domin.com
MSSQLSvc/Machine name.Domin.com:1433
SMTPSVC/Machine name
SMTPSVC/machine name.Domain.com
and on second machine
HOST/Machine name
HOST/Machine name.Domin.com
MSSQLSvc/Machine name.Domin.com:1433
any Clues?
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May 10, 2007
Hi
Sincere Apologies for the cross posting. Did not realize that there is a specific DB Mirroring group and so posted initially in the High Availability group. Here is the original post
Hi
I am trying to test DB Mirroring connectivity and running into a road block. using SQLOLDB in my connection string the failover partner keyword seems to be not recognised when the failover occurs and the connectivity fails. The same however works with the SQL Native client driver.
Can any expert please let me know what I am doing wrong and what is the right connection string for the OLEDB one?. I also tried using different flavors of FailoverPartner (like Failover Partner, FailoverPartner etc) to make it work with OLEDB but still could not connect with SQLOLEDB provider.
SQLNCLI works with no issues at all.
Connection string code samples included.
--Code that does not work
Code Snippetconnstring = "Provider=SQLOLEDB;network=dbmssocn;Data Source=Server1SQLInst1;FailoverPartner=Server2SQLInst2;Initial catalog=mydb;INTEGRATED SECURITY=SSPI;"
Code Snippetconnstring = "Provider=SQLNCLI;network=dbmssocn;Data Source=Server1SQLInst1;FailoverPartner=Server2SQLInst2;Initial catalog=mydb;INTEGRATED SECURITY=SSPI;"
Any help is appreciated.
Thanks
AK
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Jun 23, 2014
Running this query in DR server to start SQL mirroring but encountered an error below.
Query:
use master
go
alter database test set partner= N'TCP://HOSTNAME.DOMAIN.GROUP.INTRANET:5023'
go
Error:
Msg 1452, Level 16, State 6, Line 2
The partner server instance name must be distinct from the server instance that manages the database. The ALTER DATABASE SET PARTNER command failed.
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Nov 7, 2006
We were having problems setting up the mirroring, so I did it via command lines. I found out the "alter...set partnership" command works on the mirror server going to the principal, but gets a 1418 error when going from the principal to the mirror.
So if A is the principal and B is the mirror, A to B fails but B to A works.
If I reverse it so that B is the principal and A is the mirror, B to A fails and A to B works.
Any suggestions?
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May 3, 2008
Server A = primary SQL DBs (mirroring origination)
Server B = failover SQL DBs (mirroring destination)
For database mirroring a witness is required.
Can the witness live in another instance of SQL on server B?
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Jul 22, 2014
it is possible to create Linked server with Failover partner option. I can query when primary server and getting the error when I set the DB Fail over. I have tried with following script and also gone through different sources, but failed. Please see the script and error below.
EXEC master.dbo.sp_addlinkedserver
@server = N'MIRRORLink',
@srvproduct=N'',
@provider=N'SQLOLEDB',
@provstr=N'Server=primary;FailoverPartner=mirror;network=dbmssocn;',
[code].....
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Aug 23, 2006
I'm trying to run an SSIS package. The package runs on an SQL 2005 server on Win2k3 server. The package tries to connect to another win2k3 server with sql 2000 to retrieve some data. However, I recieve the errormessage shown in the topic.
I found info about modifying the MSDTC security settings under "component services" and did so. I made sure everything was allowed. However, the result was the same. Does anyone have any other idéa about what could cause this problem?
PS. The package works fine if I set up both databases on the same physical machine...
Regards Andreas
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Oct 12, 2015
Using SQL Server 2008, we would like propose mirroring between two servers of a critical database. Since we initiate, may require to clarify on its purpose and also required changes from application end.Any changes required from OS Level? (I believe both servers IP or Host name should be added in host entries. Mirroring ports should be allowed/open including Principal and mirror server IP Addresses): Windows Team.Any changes required from Application? (Instance name, authentication: user name and its password should be added in web config files): Application Team.Any changes required from Network Team?Also for mirroring both the principal and mirror servers should be with same version, does it only mean SQL Server 2008 versions are enough or does it also mean to say build numbers 10.00.4000 should also be same.URL....
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Sep 15, 2015
I need to set up asyncronous data replication across two clustered instances of SQL 2012 across 2 Datacenters. Both the datacenters have a common domain however the vlans are different. There are only 3 small databases on the primary instance.
any issue in setting up mirroring in this case as vlans are different.
Operating system is Windows 2012.
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Jul 22, 2015
I've two instances(Default, Named[dynamicsFINANCE]) running on SQL server 2014. However, when I try to connect to named instance say (dynamicsFINANCE) using SQL authentication from local SSMS, I get below error message:
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server, Error: -1)
I assigned a static port number to the named instance [dynamicsFINANCE] 1450. I also setup the firewall rule to allow access to Port 1450.
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Jun 13, 2006
Hi fellows,
I have to migrate all objects alogwith all constraints,SP,Triggers, indexes etc from Development instance to Production instance of a DB, all those things are created through wizard ie. Sql server 2000 Enterprise Manager. if i use DTS it only mirates data along with tables and views but constraints,SP,Triggers, indexes etc not yet copied.
can any body help me how can I solve this problem by copying all objects alogwith all constraints,SP,Triggers etc from Development instance to Production instance.
This is Sql server 2000 Cluster environment.
thanks in advance for any help
rahman
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Mar 20, 2014
I have a 3 node cluster on which I have installed SSAS as it's own insntance. I have created this as a named instance and can connect to it by serverinstance if I'm on the server itself. However from my desktop I get the error saying instance was not found on server name.
I have defined an alternate port and setup firewall rules and can connect via server:port but not serverinstance. Prior to making this change SSAS was running on default port of 2383 and I could connect just by servername.
I have read many articles for previous versions saying that clustered SSAS will always use 2383 and that you must connect just using servername. However and this is were it gets strange. I have a 2 node UAT cluster with SSAS setup exactly the same way I've described above and I can connect from my desktop as serverinstance.
Should I be able to connect as serverinstances for a named clustered instance in 2012 ?
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Feb 19, 2007
Hi, I have a task in hand to migrate (upgrade) from SQL2K named instance to SQL2K5 default instance. There are many intranet applications touching current SQL2K. I would like to perform this upgrade such that I don't have to touch any application code - meaning I don't have to change the connectionstring to point to new Default instance. How can I achieve this?
So, in otherwords, here is what I want to achieve:
Current Server: SQL2K: SERVER_AINSTANCE_A (named instance)
Upgraded Server: SQL2K5: SERVERB (default instance)
If I have both default, I could achive this by setting up DNS alias after migration done so that any call for SERVER_A would point to SERVER_B. But in my case, I don't have SERVER_A, I have named instance. Is there any solution?
Regards,
Vipul
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Jan 13, 2007
Hi,
I want to move one database from the source SQL Server 2000 instance to a new SQL 2000 instance in another machine. I have five user databases in this source SQL instance. How should be my approach to move this single database out of this ? My understanding is restoring this database in the new instance, copying all logins to the new instance and then copying the jobs, DTS packages, alerts, operators only specific to this database will do it. Please let me know if this is exactly what I should do ..
Thanks in advance..
Regards,
Himansu
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Jan 13, 2007
Hi,
I want to move one database from the source SQL Server 2000 instance to a new SQL 2000 instance in another machine. I have five user databases in this source SQL instance. How should be my approach to move this single database out of this ? My understanding is restoring this database in the new instance, copying all logins to the new instance and then copying the jobs, DTS packages, alerts, operators only specific to this database will do it. Please let me know if this is exactly what I should do ..
Thanks in advance..
Regards,
Himansu
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Oct 10, 2001
I am trying to set up a Named Instance of SQL 2000 on the same machine that has a default instance of SQL 7.0. The setup always completes and I am able to register the Named Instance of the SQL Server with which it was installed on. However, when I try to connect the users to the database, with both windows and SQL authentication, I receive a SQL server not found error. I have tried an alias setup as well as physically specifying the port number in settup up an ODBC connection.
Has anyone ran into similar problems?
Also, has anyone been able to successfully complete the process as mentioned above?
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Mar 2, 2007
I have a server with sql server 2005 installed as the default instance -- I have a piece of software that needs SQL2000 to be the default instance. Is there a way other than install new sql2005 named instance and move databases to rename my SQL2005 instance from <machinename> to <machinename>sql05 for example?
Bryan
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