Error 1456 Mirroring
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The Alter Database Command Could Not Be Sent
test auto failover. When i try to setup using SSMS, i encounter the below error. "The alter database command could not be sent to the remote server instance 'TCP://Mywitnessserver:5022". The database mirroring configuration was not changed. Verify the server is connected and try again.(SQL Server, Error 1456)." I have try to ping the witness server from sql 2012 mirroring error 1456 both principal and mirror server and the result is succesful. I also try to telnet the witness from both pricipal and witness server and the result is succesful. I also have created same sql server user for all principal, witness and mirror server but still the same error come out. When i checked the SQL Server error log in witness server it shows the below error. "Database Mirroring login attempt failed with error Connection handshake failed. An OS call failed (8009030c) 0*8009030c(The login attempt failed) State 67. Details: Principal Server : Windows 2012 , Microsoft SQL Server 2008 (RTM) - 10.0.1600.22 (X64) Jul 9 2008 14:17:44 Copyright (c) 1988-2008 Microsoft Corporation Enterprise Edition (64-bit) on Windows NT 6.2
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Sql Mirroring Witness Error 1456
Now and get your question answered! Username: Password: Save Password Forgot your Password? All Forums SQL Server 2005 Forums High Availability (2005) Witness problem - error 1456 Reply to Topic Printer Friendly Author Topic wirtz Starting Member 2 Posts Posted-11/27/2008: 05:28:36 Hello,I have problems to add a witness to my mirroring session.Principal and mirror are https://social.technet.microsoft.com/Forums/en-US/cd732059-2b5d-4753-8c96-e2371780895c/database-mirroring-error-1456?forum=sqldatabasemirroring in one domain, witness is another domain. I figured out that I have to use certificates to do the mirroring session.I followed the instructions on msdn... the mirroring itself (principal/mirror) works fine, but when I want to add the witness I get into trouble.I did as the instructions on msdn said: configured the witness for in- and outgoing connections, imported certificates, added logins and users for principal/mirror on the witness and vice versa.I http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=115288 have checked the ports via cmd -> "telnet xx.xx.xx.xx port" and there is no problem connecting on the port used for the endpoints in any direction.But when I run transact sql on the principal to add the witness I always run into an error.ALTER DATABASE db1066xxxxx SET WITNESS = 'TCP://88.xx.xx.xx:5022'the error 1456 occurs:The ALTER DATABASE command could not be sent to the remote server instance 'TCP://88.xx.xx.xx:5022'. The database mirroring configuration was not changed. Verify that the server is connected, and try again.I can definitely connect to the server... telnet works fine and I can even load the witness in the management studio on the principal/mirror... so: what is really the problem?I have already checked several forums and instructions on the internet, but couldn't find a solution... Thanks for your help. Edited by - wirtz on 11/27/2008 05:55:34 sodeep Flowing Fount of Yak Knowledge USA 7174 Posts Posted-11/27/2008: 10:03:35 http://developmentalmadness.blogspot.com/2006/07/adventures-in-mirroring.html wirtz Starting Member 2 Posts Posted-11/27/2008: 11:30:59 Thanks for your response... after some time of struggle I finally managed to solve the problem... in the end it was a network issue.There was an error showing up in sql server log, that was not there before. '...The specified network name is no longer available...'I searched the internet for this error and found a suggestion to enter
Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow http://serverfault.com/questions/337317/cannot-add-witness-to-my-mirroring-setup the company Business Learn more about hiring developers or posting ads with us Server Fault Questions Tags Users Badges Unanswered Ask Question _ Server Fault is a question and answer site for system and network administrators. Join http://nwping.blogspot.com/2012/10/i-have-mirrored-sql-2005-servers.html them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Cannot add witness to my error 1456 mirroring setup up vote 2 down vote favorite I'm trying to set up mirroring with a witness using my 3 dedicated servers running SQL Server 2008 R2. I've set up everything as described at this blog post Mirroring seems to work fine between the principal and secondary server. But when I run the very last command to add the witness alter database citec_vc_prod set witness = 'TCP://witness_address:witness_port'; I get the following error after 2012 error 1456 a few seconds: Msg 1456, Level 16, State 3, Line 1 The ALTER DATABASE command could not be sent to the remote server instance 'TCP://witness_address:witness_port'. The database mirroring configuration was not changed. Verify that the server is connected, and try again. Also, the event log on the principal shows the following error: The ALTER DATABASE command could not be sent to the remote server instance 'TCP://witness_address:witness_port'. The database mirroring configuration was not changed. Verify that the server is connected, and try again. I've already shut down the firewall on the witness, and I've successfully telnetted from the principal into the mirroring endpoint of the witness server to make sure there is no connectivity problem. Yet, I still get this error. My setup is as follows: Principal: SQL Server 2008 R2 Standard 10.50.1617 Mirror: SQL Server 2008 R2 Standard 10.50.1617 Witness: SQL Server 2008 R2 Express 10.50.2500 Each of the servers is in a different workgroup. Please help me SQL server gurus, you're my only hope! Edit: Here's a complete log of the T-SQL commands I used to set up mirroring. Once the first attempt failed with the problem described above, I deleted everything and started from scratch. The same problem reoccurred though. -- PRINCIPAL create master key encryption by password = 'mypassword'; GO create certificate "server1.ourdomain.com_cert" with s
server environment configured for high availability, fail-over mode. Here are the versions of SQL running on them: SQL Versions: Primary: SQL 2005 Standard Mirror: SQL 2005 Standard Witness: SQL 2005 Express For reasons not related to SQL I had to rebuild the Witness server. When I attempted to bring the Witness server back into the mirror via the SQL mirror management tool I got the following error message: The ALTER DATABASE command could not be sent to the remote server instance 'TCP://SQLWitness.domain.local:5022'. The database mirroring configuration was not changed. Verify that the server is connected, and try again. (Microsoft SQL Server, Error: 1456) I looked at all of the default settings and everything looked good. I could telnet to port 5022 on both the Primary and the Mirror server but NOT the Witness server. This is an issue. Port 5022 should be available on the Witness for this to work. (Yes, I verified that there was no firewall blockage). When I ran "SELECT name, port FROM sys.tcp_endpoints" against the Witness server I received the following. Notice that there is no mention of it's role as a witness. This is a problem. Resolution: I ran the following against the Witness server to recreate the endpoint: Use Master GO CREATE ENDPOINT endpoint_mirroring STATE = STARTED AS TCP ( LISTENER_PORT = 5022 ) FOR DATABASE_MIRRORING (ROLE=WITNESS); GO Now when I run "SELECT name, port FROM sys.tcp_endpoints" I see the following: Now this time I went into the SQL Server Mirror Manager I was able to add the Witness server with no problems. Details: http://msdn.microsoft.com/en-us/library/ms190456%28v=sql.90%29.aspx Posted by Roger at 12:39 PM Reactions: Email ThisBlogThis!Share to TwitterShare to FacebookShare to Pinterest No comments: Post a Comment Please leave a comment if you find this helpful. Thanks! Newer Post Older Post Home Subscribe to: Post Comments (Atom) Home Search This Blog About Me Redmond, Washington, United States View my complete profile Blog Archive ▼ 2012 (2) ▼ October (2) Move MSDB and TempDB Databases Bringing a Witness Into an existing SQL Mirror Pai... ► 2011 (2) ► June (2) ► 2010 (5) ► June (1) ► May (1) ► April (1) ► March (2) Followers Watermark template. Powered by Blogger.