Witness Server Connection To Mirror Disabled?
Jun 28, 2007
Hello,
the Mirror Server is not connected to the Witness Server.
Mirror Server and Wtiness Server are instances on one server.
I get this error:
"
2007-06-28 17:08:12.77 spid23s The server instance Witness rejected configure request; read its error log file for more information. The reason 1451, and state 3, can be of use for diagnostics by Microsoft. This is a transient error hence retrying the request is likely to succeed. Correct the cause if any and retry."
In the SQL Profiler for the Witness Server I get "An error occurred while receiving data" Error 64.
In the witness server logs is nothing depending on this.
The connection between the witness and principal and the mirror and principal are all right. I have created User logins with certificates on the same way on all instances.
What can I do?
Greets
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Jan 31, 2008
After adding the Witness Server to the Mirror session, the Witness Connection state between the Mirror and Witness Connection is Disconnected and the state between Principal and Witness Connection is Connected.
The procedures defined in Books Online was used to setup Database Mirroring...when the Witness server was added to the Mirror session, only the alter database T-SQL statement was executed on the Principal server.
ALTER DATABASE <db_name> SET WITNESS = 'TCP://<servername>:<port>'
After executing the above statement, a few seconds later the state between Principal and Witness Connection changed to Connected and the state between Mirror and Witness Connection remains Disconnected.
The Mirror session is not using Certificates, every server is on the same domain, using the same domain login account, and all servers have SP2 installed running Enterprise Edition.
Any idea's why the state between Mirror and Witness Connection remains Disconnected?
Thanks,
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Jun 14, 2015
I am using SQl Server 2012 Database Mirroring with around 40 gb as mdf and 1 gb as ldf. Now my ldf size increased . How to reduce ldf size while mirror enabled with mirror server and witness server. Can shrink the ldf with mirror enables.
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Oct 24, 2015
missing witness server information and the fail-over is broken suddenly? 4:00am no maintenance job. I have one sql job on 10pm for backup on database transaction log only.
I can see the primary have problem then perform fail-over to mirror database, the auto fail-over was broken.
I re-build the sql mirror is OK , but i want to find the root cause.
Windows application event was full when there have many failed event, i have increase log size for application event.
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May 9, 2007
I can establish the mirror with the principal and mirror but cannot add the witness (error 1456) all machines are SQL Server 2005 standard edition service pack 2 principal and mirror are windows server 2003 and witness is windows xp
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Nov 29, 2006
Hi guys , I would like to know what's the exactly results able to get in this following scenario.
Server A : Principal
Server M : Mirror
Server W : Witness
1) Firstly, disable server M, following by server W. So probably i will unable to connect to Server A eventhough it acts as a principal.
2) Next, if I enable either server M or server W , what will I able to get actually ? Is it the mirroring works like the article which written in Microsoft page ?(http://www.microsoft.com/technet/prodtechnol/sql/2005/dbmirror.mspx#ETPAE)
At here, I get an error message and unable to continue the mirroring section. ( "Database EMS is enabled for Database Mirroring, but neither the partner nor witness server instances are available: the database cannot be opened." or "Database 'EMS' is being recovered. Waiting until recovery is finished." )
3) If I enable both server M and server W, the mirroring continue to work again.
Can I have any assistance on (2) issue? Thx for the assistance.
Best Regards,
Hans
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Oct 17, 2007
I'm getting the following error when launching the database mirroring monitor and attempt to connect to my database.
TITLE: Connect to Server
------------------------------
Cannot connect to dborat01.hs.pitt.edu.
------------------------------
ADDITIONAL INFORMATION:
SQL Server replication requires the actual server name to make a connection to the server. Connections through a server alias, IP address, or any other alternate name are not supported. Specify the actual server name, 'xxxxxx'. (Replication.Utilities)
------------------------------
BUTTONS:
OK
------------------------------
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Apr 2, 2007
Hi guys, right now I am facing this scenario several times and I wonder why it can be happen. Both SQL servers are in Enterprise SP1 edition. The mirroring setup can be work fine to me. Once my principal get attacking by DDOS, then mirroring session change the status to 'DISCONNECTED'. However, after DDOS attack solved and line connection gets back on the principal server, the mirroring session still remain to the status ('DISCONNECTED'). If I restart the SQL services on principal server or mirror server, then only the mirroring session change to 'SYNCHRONIZING' status. Does anyone faced this happen before? I need some assistance on it and hope able to get any explanation or solution from you guys. Thanx and have a nice day.
Best Regards,
Hans
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Apr 7, 2008
Sorry I didn't know the best forum for this question.
I have 3 SQL 2005 x64 servers on my remote domain.
10.1.10.65 is the primary
10.1.10.66 is the mirror
10.1.10.67 is the whitness.
All 3 machines run the MSSQLSERVER service as a domain admin user acount, and all of the other servies use LocalSystem.
All machines are configured to use the default instance name of MSSQLSERVER.
I have another seperate server ON THAT DOMAIN which runs IIS and ASP Classic.
I installed the SQL Native client on that machine.
Here is the ASP code:
-----------
<%
dim strConnString, objConn, rs, sql
strConnString = "Provider=SQLNCLI;Persist Security Info=False;User ID=sa;password=MyPassword;Initial Catalog=LCR;Data Source=10.1.10.65; Failover Partner=10.1.10.66"
sql = "SELECT * FROM DFW"
Set objConn = CreateObject("ADODB.Connection")
objConn.ConnectionString = strConnString
objConn.CommandTimeout = 300
objConn.Open
SET rs = Server.CreateObject("ADODB.Recordset")
rs.CursorLocation = 3
rs.Open sql, objConn
Do While Not rs.EOF
Response.Write rs(0) & "
"
rs.MoveNext
Loop
rs.close
objConn.close
set objConn = nothing
set rs = nothing
%>
--------------------------------
If I run this code on the server on the SAME domain and shutdown MSSQL services on the primary machine the Failover server starts working an serving data requests.
It I then take that code and run it from another REOMTE domain, I can connect to the primary server and get data, but when I force a failover for testing it refuses to connect the the MIRROR server.
In the error log on the primary server I see 12 errors.
There are 4 sets of the following 3 errors, as SQL will try to connect 4 times before failing.
1)
Date 4/7/2008 12:00:39 PM
Log SQL Server (Current - 4/7/2008 12:00:00 PM)
Source Logon
Message
Login succeeded for user 'sa'. Connection: non-trusted. [CLIENT: 10.1.3.79]
2)
Date 4/7/2008 12:00:39 PM
Log SQL Server (Current - 4/7/2008 12:00:00 PM)
Source Logon
Message
Error: 18456, Severity: 14, State: 16.
3)
Date 4/7/2008 12:00:39 PM
Log SQL Server (Current - 4/7/2008 12:00:00 PM)
Source Logon
Message
Login failed for user 'sa'. [CLIENT: 10.1.3.79]
Why does this work when the code runs on the LOCAL domain only when I'm connecting via SQL Security?
Thanks for any help.
John Rossitter
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Mar 3, 2008
The problem: One server sees the witness, one does not. If the dbs are active on the one that doesn't see the witness and I shut that server down everything works as it should. However, if the dbs are active on the server that sees the witness and I shut that one down the mirror does not take over because it can't see the witness and form a quorum. It throws Event ID 1438 every 20 seconds complaing "The server instance Witness rejected configure request...The reason 1451, and state3, can be used for diagnotics by Microsoft...."
The scenario: I finished setting up a mirror in a WORKGROUP, by going through the GUI and then at the choosing not to start the mirror. That allowed me to modify the NETBIOS names and change them to IP addresses in order to get around the FQDN requirement that I can't fulfill since the servers are in a workgroup. They are in the same subnet and can run SQL queries against each other.
When I query sys.database_mirroring from the database servers I get this on the good server:
mirroring_witness_name mirroring_witness_state_desc
----------------------------------------------------------
TCP://155.17.92.63:5022 CONNECTED
TCP://155.17.92.63:5022 CONNECTED
And this on the bad server:
mirroring_witness_name mirroring_witness_state_desc
-----------------------------------------------------
TCP://155.17.92.63:5022 DISCONNECTED
TCP://155.17.92.63:5022 DISCONNECTED
here's are the results from sys.database_mirroring_witnesses
database_name principal_server_name mirror_server_name safety_level safety_level_desc
-------------- -------------------------- ------------------------- ------------ ------------------
dbadmin TCP://pscdaltpscom20:5022 TCP://155.17.92.65:5022 2 FULL
dbtest TCP://pscdaltpscom20:5022 TCP://155.17.92.65:5022 2 FULL
Oddly, the server that I created the mirror from registered itself with it's NETBIOS name even though I told it to use an IP address. However, that's the one that is working properly. I think this might be a red herring.
Does anyone have any ideas why my second server can't communicate with the mirror? Any clarifications I can make? I have been completely unable to find a step-by-step guide to creating mirror databases outside of a domain...so if someone knows of one please point me that direction.
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Jan 28, 2008
Can 1 witness server work for 4 Principal and mirror servers?
Needs expert advise.
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Jul 10, 2013
I need to start mirroring the databases without witness server.
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Sep 14, 2015
I am unable to add witness server to my mirror configuration. my error log is throwing error'Connection handshake failed. The certificate used by the peer is invalid due to the following reason: Certificate not found. State 89'.
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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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Mar 30, 2007
I have two 64bit SQL Server Std servers that will be principal and mirror. I also need to stand up a witness. I already understand that the witness can be any version of SQL Server, but can the witness server be 32bit given the principal and mirror are 64bit?
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Apr 2, 2007
We've been running a mirrored database (using certificates since we don't have a domain) and it's all working well. Last week we decided to add a witness for automatic failovers, but for some reason I just can not get the witness to connect to the Partner2 server.
See screenshot here
Please help me troubleshoot this - I re-created the endpoints / users / certificates but it's still not working. Where can I get more information on what exactly the problem is? Can I test the endpoints somehow?
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Dec 27, 2006
I was trying to test mirroring and now would like to delete the mirror database but it says I need to remove database mirroring first. I deleted the endpoint and cannot figure out how to remove the mirroring. Can someone please help.
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Apr 9, 2015
We have 2 data centers, site 1 and site 2. Site 1 is generally our primary, and site 2 is our Disaster Recovery (DR) site. I want to setup a SQL instance to have extremely high availability. Therefore I was looking at using DB mirroring, with synchronous data writing, high-safety and auto-failover. This requires the usage of a witness server.My problem with this setup, is that if the witness and principal are both at site 1, if site 1 goes away (power failure, asteroid impact, lol, anything else that would be a *true* DR scenario), then there is no failover to the mirror server at site 2. However, if you put the witness at site 2, anytime the WAN link between site 1 and site 2 has an issue, the DB will auto-failover to site 2. Is the reason for the recommendation of the witness being at the primary site because the thinking is that WAN link failure is likely more common than a *true* DR scenario that takes out all of site 1?
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I have SQL Server Management Studio installed but do not seem to be able to resolve this issue.
My operating system is windows XP Home SP2.
Some guidance on solving this would be appreciated.
Many thanks
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Use sp_configure 'user instances enabled' to generate user instances.
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Thank You,
Klaus
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Dec 19, 2006
Hi all,
I feel happy to post my first thread at dbforums.com, and I think it's the community of DB professionals.
my question is:
I have two servers in my organization, one of them is running an SQL server database. Is there any way to make the second server a mirror of the first one and to make it runs automatically as the main server when the first server is down?
Thanks for replying soon.
Haytham
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May 7, 2008
Hi,
I have SQL 2005 database mirrror enviroment with MS jdbc driver 1.1. From code, I need to get server name that current connection connect to at run time (which server that the current connection connect to: Priciple server or mirror server). Any help for that?
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Nov 20, 2006
Hi Everyone;
I have a SQL Server 2005 DB server (SRV1) and a mirror DB server (SRV2) without witness server. I saw that there is a "Failover" button on Mirror window of SRV1. When click it servers changes roles.
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Thanks in advance.
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