Mirroring Over Fail Over For Application
Dec 18, 2007
We are having one Primary server, one witness server and one Mirroring server. All three servers depends on the port numbers, as primary server port number is open and witness server listens to that port number, if any failover happens to the Primary server automatically the witness server takeover all the databases and sends it to Mirroring server. Now the problem is what is about the applications?
For example applications are using databases how should they interact with the databases in failover situations? Suppose, if we think we can give some connection strings to the applications it may interact with databases from mirroring server, but how to give the connection strings to the applications?
I have got one code for it, €śData source = sqlAinst1; failover partner = sqlBinst1; initial catalog = DBMtest; Intergrated Security = True€? what do you think of this code?
mirr
And one more issue is if we are having some thousands of applications running, do we need to give the above code for each application?
If so it is meaning less right?
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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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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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Mar 28, 2007
Hi!
I have setup a database mirroring session without witness - ServerA is the principal, ServerB is the mirror,. Each SQL Server instance is hosted on its own machine on sql2005 EE SP2. The mirroring is working correctly. If I submit to server ServerA command:
ALTER DATABASE MYDBNAME SET PARTNER FAILOVER
, ServerB becomes the principal, it means that mirroring works correctly.
My issue is with the SQL Native Client and a front-end ASP application (actually IIS 6.0 site) that needs to make use of this database. I have setup my front-end application to use SQL Native Client and specified the failover server in connection string. Here is the connection string that I am using :
PROVIDER=SQLNCLI.1;Server=ServerA,1433;Failover Partner=ServerB,1433;Database=MYDBNAME;Network=dbmssocn;Integrated Security=SSPI;
Everything works perfectly on my front-end application when ServerA is the principal. If I execute on server ServerA command:
ALTER DATABASE MYDBNAME SET PARTNER FAILOVER
, ServerB becomes the principal, and the failover occurs correctly on the database side. The problem is that my front-end application is not able to query the database on ServerB. The error appears:
Microsoft SQL Native Client error '80004005'
Cannot open database "MYDBNAME" requested by the login. The login failed.
This behavior my appication till I unload IIS 6.0 pool application. After that my front-end application becomes work correctly with ServerB.
When I swap server, I execute on server ServerB command:
ALTER DATABASE MYDBNAME SET PARTNER FAILOVER,
my IIS 6.0 application automaticly turn back to ServerA without any action on my side.
I am using SQL Native Client last version http://download.microsoft.com/download/2/7/c/27c60d49-6dbe-423e-9a9e-1c873f269484/sqlncli.msi (issued in February 2007). Has anyone experienced this issue? I'm thinking that it's a problem in the SQL Native client
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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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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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Apr 13, 2008
have SQL Server 2005 std edition SP1 installed on Windows 2003 Std edition .Configured Transactional (single Publisher and no clustered environment.)
Replication past two months working fine, Now
1.Distrib.exe application err is coming.
Due to which my job is failing (Distributor to Subscriber).
Iam attaching thw file.
Thanks
Sandeep
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Jan 4, 2007
Hi y'all,
I'm facing a database data transmission problem during synchronysing. When dts fails i need a better solution instead inconsistent data.
I'm looking for data comparer for sql server where i have total control of my actions.
Any suggestions.
THanks in advance!
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Nov 7, 2001
Can anyone direct me to a good resource for setting up SQL2k in a failover cluster. I am trying to do this without a shared disk array, and need more info.
Thanks.
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Dec 13, 2004
Does anyone know of a Fail Over Document for SQL Server 2000 Enterprise edition?
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May 19, 2008
HI Friends
One of server my job is getting fail. It will showing log speace is full but log speace is 24GB But actually my log file actual speace is 30GB How can i handile this isssue plz help me urgent
Thanks
MS
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Jun 22, 2006
Hi
I have scheduled a job and the job is getting failed.I have scheduled two DTS packages in the job.But when I run the DTS Packages separately its running fine without throwing any errors.But when the Job fails I am getting the error message like "Dts package not found"
The error message which I am getting while the Job fails is
"Executed as user: TESTsqlservice. DTSRun: Loading... Error: -2147217900 (80040E14); Provider Error: 14262 (37B6) Error string: The specified DTS Package ('Name = 'DTS_MASTER'; ID.VersionID = {A35AEABF-8F05-41B5-A4C9-47F57A3208B9}.{[not specified]}') does not exist. Error source: Microsoft OLE DB Provider for SQL Server Help file: Help context: 0. Process Exit Code 1. The step failed. "
Can anybody pls help me on this.
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Sep 11, 2007
Hey,
don't know if it's the right place for this question but i hope you help me.
I made an application with VS 2005 that connecting to sql server file db.mdf
Now i want this application work on another user computer, and of course i don't want to install vs 2005 there.
I did install .net framework, but what i need to do to make the database work? do i have to install sql server on his computer? or is there something more simple?
I know that if i was using access file than i need to install nothing else.
please help!
thanx.
max
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Jul 19, 2000
how do i fix this? syntax pls!!
There was a problem running the DBCC.
SQL Server returned the following error message:
Table Corrupt: Object ID 213575799, index ID 2, page (1:951), row 68. Test (ColumnOffsets <= (nextRec - pRec)) failed. Values are 21 and 0.
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Nov 26, 2007
I am trying to set up a DTS to transfer logging data from one server to another.
The record may already exist at the destination causing a primary key violation. I do not want this error to cause the entire DTS to fail.
When I execute the DTS I created by right clicking and selecting "Execute Package" it shows me 2 errors. Although there are 2 errors the rows that do not have a primary key violation are successfully transfered to the destination database.
Here are the 2 errors I see:
Error 1:
Error at Destination for Row number 97. Errors encountered so far in this task: 97.
The statement has been terminated.
Violation of PRIMARY KEY constraint 'PK_event'. Cannot insert duplicate key object 'event'.
Error 2:
Error at Destination for Row number 198. Errors encountered so far in this task: 198.
The statement has been terminated.
Violation of PRIMARY KEY constraint 'PK_eventDetail'. Cannot insert duplicate key object 'eventDetail'.
These errors make sense, there were 97 duplicate lines in the event table and 198 duplicates in the eventDetail table.
This is the behavior I want. New rows are copied to the destination database.
When I schedule the DTS as a Job in the Enterprise manager things change. When the DTS is executed as a Job (as opposed to me right clicking and selecting "Execute Package"), the job reports a failure and none of the new rows are transfered to the destination database.
Why does the DTS transfer the rows that do not violate the Primary Key constraint when I manually execute it and not when it is executed as a job?
How can I get the DTS to function as desired?
Thanks,
Andy
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Oct 8, 2004
Hi,
i m facing this error when running DTS on IDENTITY(1,1) Field.
how can this field increment automatically ???
Step Error Source: Microsoft Data Transformation Services (DTS) Data Pump
Step Error Description:The number of failing rows exceeds the maximum specified. (Microsoft Data Transformation Services (DTS) Data Pump (80040e21): Insert error, column 14 ('s_no', DBTYPE_I4), status 10: Integrity violation; attempt to insert NULL data or data which violates constraints.) (Microsoft OLE DB Provider for SQL Server (80040e21): Multiple-step OLE DB operation generated errors. Check each OLE DB status value, if available. No work was done.)
Step Error code: 8004206A
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May 19, 2008
I'm trying to get a job to fail using a stored procedure command.
I have been using:
EXEC sp_stop_job @job_name = 'Archive Tables'
But this command only cancels the job, I want to the job to report back a failure.
Is there a sp_fail_job, or a sp_quit_job or something?
Thanks in advance
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Nov 13, 2007
i tried to install sql 2005 and first time succesfully, but not able to see "Enterprise" manager even during installation i select all features.i was told unstall Visual Studio MS Express and try again. it didn't work neither. in the end i have unstalled SQL, Express SQL from Visual Studio, delete SQL from Programm Files and even clean up register still the same problem. am i doing something wrong?
thank you
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Jul 23, 2005
Hi,Is it possible to somehow set a SQL Server DTS job to automaticallydisable itself, when it encounters a fail, so that future scheduledoccurrences don't happen until the problem has been fixed?I've hunted about for this on the web, but drawn a blank unfortunately!Many thanks if anyone can help at all.
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Jul 20, 2005
I had link my 4 of workstations to server with MySql.1 pc of my pc can run a software which can update MsSql perfectly but notothers(3 failed).I tried to add System Dsn data source for Control Panel - Odbc data source32.The pc which working fine with the software function but 3 of the rest not.My pcs running xp and win98 !Regards.Thanks.Leslie Lim
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Jul 20, 2005
Hi,In case of failover to standby server, what is theest way to redirectclient applications to new server?1) DNS name change -- not viable due to Caching issue.IS there any alternate like Oracle's onames/LDAP for resolving namewith sql server?Can use Sever alias?Thanks
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Nov 27, 2006
I have several packages that I download files using a sql task (I cmd shell out). I use sql task because the file names change everyday. what I want to know is how can I check to see if the file I downloaded exists either within the same task (preferred) or a task right after?? I want to fail the package instead of letting it get into the actual loading of the file where it now fails at.
I hope this makes sense.
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Aug 24, 2006
Hello,
I'm using SQL Reporting services 2000 SP2.
I create a report and when i select pdf format in the export dropdownlist and i click on export, a popup (open/save) appears but when i click ok, i've an error message : "IE can't download Format=PDF of IP_ADRESSE".
If i do the same thing with excel type in the dropdownlist it works!
Do you know why?
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Apr 18, 2006
Hi, sorry again, l've a package which call the FTP tasks. In design-time, it works fine. While l put it into SQLAgent to run in schedule. It fails. The package log file said,
OnError,MAXIS-SYSOPT,NT AUTHORITYSYSTEM,FTP Raw File Motorola,{b3b941f5-ebc2-4b38-b314-87ff4827c2a8},{E93D51C5-539E-4CEE-B616-BBCFF9FA813E},4/18/2006 3:18:23 PM,4/18/2006 3:18:23 PM,-1073573489,0x,Unable to connect to FTP server using "Metrica FTP".
Does anyone know what's happening?
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Mar 28, 2006
Dear All
In SQL Server 2000, I schedule a job to run a exe. I expect the return of this result show the success or fail. However, I find the job keep running if fail. Actually, I want to see the failed status in enterprise manager.
Could you give me some suggestions how to return a fail from VB6 program to SQL Server? Maybe give me other directions to solve the problem? Thanks a lot.
More Information
I run the exe by double click. if it fail, it return a prompt message box.
Alex
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Aug 9, 2007
Hi Forum,
I am having issues with hosted Sql05 server conn. Ive made the move from Oledb to Sql, so am unsure if trouble is permissions or connection related!
Exception Details: System.Data.SqlClient.SqlException: Login failed for user ''. The user is not associated with a trusted SQL Server connection.
<connectionStrings> <remove name="LocalSqlServer" /> <add name="ConnectionString" connectionString="Data Source=**.**.**.**;Initial Catalog=***_Database.mdf;Integrated Security=True;" /> </connectionStrings> <system.web> <roleManager enabled="true" defaultProvider="SqlRoleProvider"> <providers> <clear /> <add name="SqlRoleProvider" type="System.Web.Security.SqlRoleProvider" connectionStringName="ConnectionString" /> </providers> </roleManager>
Ive tried some conn varients re security id, but its always the same error. I can use SQL Server Management Exp to login/manage database, using SQL authentication.
The web app is the conn I cant open, hosting company support useles, now thats something new, cheers P
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Aug 23, 2007
Dear experts,
I've a database in sql2005 and now I want to build a same one on another machine. I've searched thru google and told that i can use backup& restore or using script. I've tested using backup/restore and it works great now i want to give a test to script. I've script the database successfully to a sql script file, however, when i run it against the new database server, the new database was not created as expected. Could anybody explain why? Thanks in advance
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Nov 26, 2004
hi,
i got this error----
Login failed for user 'MERIDIANIUSR_BARODA'.
.Net SqlClient Data Provider
-------
what should i do?
my connectionstring is
----
conn.ConnectionString = "workstation id=BARODA;packet size=4096;integrated security=SSPI;data source=BARODAEMIS;persist security info=True;initial catalog=SMS"
----
i also create 'MERIDIANIUSR_BARODA' user.
give any solution.
it's urgent.
thanks in advance
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Jun 25, 2002
I have 2 DTS packages that import data from an Access database that have recently started failing. They run fine manually in DTS, but not manually as a job. They get an "unspecified error." These were running fine, until we installed Outlook and started to add Outlook mail to SQL.
Originally, Administrator was the owner and that is how the jobs were run. We changed to SQLAdmin for the SQLAgent to start under, and I changed the owner of the jobs to SQLAdmin. This works for all jobs but these 2. I thought maybe SQLAdmin could not get to the Access database, but it can. I spell out the path for the database, I don't use any mappings. I recreated the jobs logged in as SQLAdmin, and they still do not work as jobs.
Any ideas are much appreciated!! Thanks in advance!!
Karen
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Jun 28, 2001
I have a package that import data from one DB to another DB.
The package work fine but the scheduled job give me this error:
DTSRun: Loading... DTSRun: Executing... DTSRun OnStart: Transfer SQL Server Objects DTSRun OnError: Transfer SQL Server Objects, Error = -2147024893 (80070003) Error string: Error source: Help file: Help context: 0 Error Detail Records: DTSRun OnFinish: Transfer SQL Server Objects DTSRun: Package execution complete. Process Exit Code 1. The step failed.
Any idea?
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Aug 23, 2001
My database's log file is full. i want to backup it .
First i create a backup device named aa.
Than i use Enterprise to backup trasaction log.
But it popup an error messagebox.
The title is "Microsoft SQL-DMO(ODBC SQL state:42000)
The content is "write on 'aa' failed,status=112. See the SQL error log for more details.Backup or Restore operation terminating abnormally.
What's the matter ?
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Sep 25, 2001
I can not get SQLServerAgent to Send Mail. Help!
SQLMail started successfully.
In the server agent properties I use the Test button and I receive the
response.
"Successfully started(and stopped) a mail session with this profile."
Indicating that mail should work.
If I send a email notification from a scheduled job it gives me the error:
NOTE: Failed to notify 'operations' via email
In the SQL Server Agent Error log I get.
"[264] An attempt was made to send an email when no email session has been
established"
xp_sendmail works fine.
Any ideas would be greatly appreciated.
TIA...
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Sep 14, 2000
I have a DTS package in which I would like it to fail if the table is empty. I would like to create the first task as this check (i.e. select @cnt = count(*) ... if @count = 0 then fail the task (to prevent further DTS Task processing.
Does anyone have an example or suggestion on how to set this particular Execute SQL Task to fail?
Thank You
Jamie Reis
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