Single Instance/Multiple Instance/Virtualization Q
May 17, 2007
I work for a mid size company with the usual collection of enterprise applications. We are trying to consolidate our SQL environment consisting of around 100 databases none of which are over 100GB with the average database size around 5GB. Recently a large server was purchased as the "Big Daddy" SQL box. Obviously not all the databases will be moved to this one box but within reason a number can.
My question: What is the best way to configure the box?
1 OS & 1 Default Instance - How do we isolate loops memory leaks etc...
1 OS & Multiple instances, ie:Dedicated instance for each application. - How do you allocate CPU & memory, allow for optimum performance without putting others at risk from a rouge process?
Virtualized OS for each application with a default instance - Too much overhead impacts performance?
Future plans include offsite replication, perhaps mirroring with failover.
I'd appreciate anyone else's thoughts ideas? How have you tackled this problem in your environment?
Thanks
Scott
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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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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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Jul 7, 2001
SQL7
If I have a job that runs every minute, and that job happens to take more than one minute to run on occassion, will SQL Server start a second instance of the job or will it be serial - one after another ?
Thanks,
Craig
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Aug 1, 2013
I've got a 4 node SQL 2008R2 cluster (configured 2 active - 2 passive), and 9 instances, of which all but one are on SP1 (the most recent addition is on SP2).
I need to apply a hotfix (Cumulative Update 6 for SP1) to just one instance. Can I do this by failing over the affected instance to one of the passive nodes, applying the hotfix, and failing it back again or do I need to apply the hotfix to all nodes as detailed in:
SQL Server failover cluster rolling patch and service pack process
i.e. will it involve a little downtime for all instances on the cluster?
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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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Feb 27, 2007
I have been looking at this statement for allowing access from a remote location to a specific database on my SQL Server (2005) from a client application.
Is it possible to do this using this method? I see lots of examples using this to expose Web Services of DB objects, however I need the client application to be able to authenticate to and access all objects in the database. If so, could some one provide a simple example of the arguments to use? For example, which protocol arguments are valid for this? I would like to use SQL Server Authentication. Is this possible?
Regards,
-Troy
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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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Sep 12, 2006
Hi all,
i have installed SQL client instance on my Desktop "Machine-A", and i used to connect to SQLServer2000 running on another "Machine-B" by using valid username and password.
i created a DTS package and i used to run it. im very confused how the communication happens between the two machines and which process run where and which initiates which and which machine allocates waht resources. im really interested to know all these things. if any one know plz help me out.
Thanks in advance.
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Oct 17, 2014
Do you need to enable Always on Availabilty on all the instances or only the instance you need to ?. We have 4 instances on a 5 node cluster and we only need one instance for the Always on to be enabled. Do we need to enable on all 4 instances ?
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Jul 2, 2015
Why would I see high CXPACKET waits on a database instance with only one CPU? Since the server only has 1 CPU parallelism can't be used, or are I'm missing something here!?
SQL version
Microsoft SQL Server 2012 - 11.0.5058.0 (X64)
May 14 2014 18:34:29
Copyright (c) Microsoft Corporation
Standard Edition (64-bit) on Windows NT 6.3 <X64> (Build 9600: ) (Hypervisor)
max degree of parallelism is set to 0
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May 1, 2015
SQL Server 2012: Out of all the databases in the instance we have a requirement in which we need to maintain a high availability for the databases around (128). Our team believed log shipping will apt for this requirement but not sure on it's limitations, how many databases are allowed or supports this log shipping from a single instance.
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Nov 16, 2015
I usually go for the largest datafile and then query in-there...But now I need to automate it for several instances... I need to be able with one script quickly retrieve the top 5 largest tables for the entire instance,not by database...
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Aug 24, 2006
I have SQL Server 2000 Standard Edition (sp3a) running on a windows 2003 (sp4) Server.
It is a Production Server with 3 NAMED Instances and NO Default Instance.
Does anyone know if I can rerun the SQL Server Install and add a DEFAULT Instance to this box without disrupting the other Named Instances???
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Oct 30, 2007
I installed SQL Server 2005 recently on a cluster. I didn't go for the default instance and instead I named the instance option. Now I would like to migrate everything from the named instance to the default instance, which I haven't yet installed.
Is this an easy process? What about the logins and the maintenance plans and jobs? Is there anything else I need to be aware of?
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Apr 13, 2007
Hi
I've never had to do this, but when I downloaded the Web Workflow Approvals Starter Kit, it requested that I install the database into a User Instance of .SQLEXPRESS.
Now the problem is, I've installed it onto a default instance, so I was wondering whether you can create a named instance on top of a default instance... and if so, how would you do that?
Cheers
Chris
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Nov 22, 2006
I have a DTS package I created that is dadabase driven to process source data from multiple sources.
Can I run several instances of this package in parallel for each source or would I need to create a copy for each source ?
JavaWaba
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Mar 6, 2008
Hi There
If i have a 2 node cluster running a single instance (default) and i want to add another instance to the cluster , can i install the second instance as a defualt instance ?
Since the cluster instances are referred to their virtual names/ip's and if i choose to intall the binaries of the second instance to a different location is this possible?
Since in theory you never have 2 default instances running on a single server but each within a virtual server?
Normally i install a named instance but do i have to ?
Thanx
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Jun 5, 2007
Can multiple instances of SQL Server be installed on the same machine under the same license? For example, a named instanced called WAREHOUSE and another called CHGMGMTSYS.
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Jan 5, 2008
Hi,
I have a report that has a SSN input parameter based on which the report is generated.
So given a single row (one SSN), one report instance is generated.
Now, I have multiple rows 20,000 or so, rows from which I need 20,000 reports generated, (so they can be printed and mailed to the clients)
How do I design the report that can handle singe or multiple reports instances?
I did tried to use the List Report Item however I could not find a way to fix the page numbers so they restart for each instance of the reports instead of being 1 of 20,000 2 of 20,2000 and so on
Any help is appreciated.
Thank you,
Vance
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Sep 6, 2006
I am trying to set up multiple instances of MSDE 2000 for use by Trend Micro virus scan products. I have the instance set up but I am trying to access svrnetcn.exe to set up named pipes and TCP/IP and I keep getting a 126 error "The Specified Module could not be found". Any ideas how to set this up.
thanks,
eric
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Feb 20, 2007
Got windows Vista Business edition, installed Visual Web Developer Express, SQL Server 2005 Express SP2, SQL Server Management Studio SP1 in that order. I was developing in VWD express without problems using WinXP but now on Vista Business, the local connection to SQL server appears to be a problem.
I know there's nothing wrong with my web.config or anything like that as it was working perfectly prior to running under Vista. If i specify the database on the live website, it works fine. If I specify the test database in app_data folder, I get the following exception:-
Server Error in '/UKSD' Application.
Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace:
[SqlException (0x80131904): Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.]
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +736211
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +188
System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +1959
System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK) +33
System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject) +237
System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart) +374
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +192
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +170
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +130
System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +28
System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +424
System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +496
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +82
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105
System.Data.SqlClient.SqlConnection.Open() +111
System.Web.DataAccess.SqlConnectionHolder.Open(HttpContext context, Boolean revertImpersonate) +84
System.Web.DataAccess.SqlConnectionHelper.GetConnection(String connectionString, Boolean revertImpersonation) +197
System.Web.Security.SqlRoleProvider.GetRolesForUser(String username) +771
System.Web.Security.RolePrincipal.IsInRole(String role) +272
System.Web.Configuration.AuthorizationRule.IsTheUserInAnyRole(StringCollection roles, IPrincipal principal) +120
System.Web.Configuration.AuthorizationRule.IsUserAllowed(IPrincipal user, String verb) +300
System.Web.Configuration.AuthorizationRuleCollection.IsUserAllowed(IPrincipal user, String verb) +191
System.Web.Security.UrlAuthorizationModule.OnEnter(Object source, EventArgs eventArgs) +3509206
System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +92
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64
Version Information: Microsoft .NET Framework Version:2.0.50727.312; ASP.NET Version:2.0.50727.312
I am taking a guess it's somerthing to do with access issues, but can't find anything out on searching the forums etc..
I am setup as an administrator, running VWD as an administrator and for the record, SQL Server Management Studio express works fine.
Another small issue, when I run the application from VWD, I always have to minimise the application and restore it as the graphics get corrupt.
Please help!! I cannot debug when running of the live website.
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Nov 15, 2007
The box I am trying to connect to is running two instances of SQL Server.
There is a SQL Server 2005 instance which is the default. There is a SQL Server 2000 instance which is named 'SQLSERVER'.
I can connect to the SQL Server 2000 instance no problem:<add key="ConnectionString" value="server=MYPCSQLSERVER;database=mydatabase;user id=****;password=****" />
However, I am having trouble connecting to the Default SQL Server 2005 instance. I have tried:
<add key="ConnectionString" value="server=MYPC;database=mydatabase;user id=****;password=****" />
but it doesn't work. I have tried explicitly setting SQL Server 2005 to use port 1434 (as SQL Server 2000 is running on port 1433), and then used:
<add key="ConnectionString" value="server=MYPC,1434;database=mydatabase;user id=****;password=****" />
but this doesn't work either.
Am I mssing something here? Any help much appreciated
Thanks...
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Feb 6, 2006
As a starter i tried to modify and translate the Personal Website Starters kit from the VS2005Team SDK.
When i'm working on the machine were it's installed , under debugging, all works great.
But when i try to develop from my laptop, via RDP on the develop machine, i've got this message and can not debug (connect to the SQLxpres Server)
Does anybody now a solution ??
Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.
Source Error:
Line 5: Sub Application_Start(ByVal sender As [Object], ByVal e As EventArgs)
Line 6: AddHandler SiteMap.SiteMapResolve, AddressOf Me.AppendQueryString
Line 7: If (Roles.RoleExists("Administrators") = False) Then
Line 8: Roles.CreateRole("Administrators")
Line 9: End If
This is the connecting string
<add name="Personal" connectionString="Data Source=.SQLExpress;Integrated Security=True;User Instance=True;AttachDBFilename=|DataDirectory|Personal.mdf" providerName="System.Data.SqlClient" />
<remove name="LocalSqlServer"/>
<add name="LocalSqlServer" connectionString="Data Source=.SQLExpress;Integrated Security=True;User Instance=True;AttachDBFilename=|DataDirectory|aspnetdb.mdf" />
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Nov 21, 2007
my web app was working fine but as soon as i added in a page and few store procedures and 2 tables it just pop up with that error message.
Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.
i did go into the folder C:Documents and SettingsdnguyenLocal SettingsApplication DataMicrosoftMicrosoft SQL Server Datasqlexpress and delete the directory but this didnt help much. I still get the same error message. please help
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Nov 13, 2007
Hello,
I have just reinstalled windows xp pro with service pack 2 and framework 2.0.
I am using SQL Express and visual studion 2005.
I am trying to run my website and i keep getting this error message, i followed few instructions but i still failed to make it work. could someone who faced similar issues guide me,
thanks
MM
Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.
Source Error:
Line 112: Public Overridable Property Theme() As String
Line 113: Get
Line 114: Return CType(Me.GetPropertyValue("Theme"),String)
Line 115: End Get
Line 116: Set
Source File: C:WINDOWSMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Fileswroxunitedeecd65d2e1a6a798App_Code.ws-dzmjl.6.vb Line: 114
Stack Trace:
[SqlException (0x80131904): Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.]
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +437
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +82
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105
System.Data.SqlClient.SqlConnection.Open() +111
System.Web.DataAccess.SqlConnectionHolder.Open(HttpContext context, Boolean revertImpersonate) +84
System.Web.DataAccess.SqlConnectionHelper.GetConnection(String connectionString, Boolean revertImpersonation) +197
System.Web.Profile.SqlProfileProvider.GetPropertyValuesFromDatabase(String userName, SettingsPropertyValueCollection svc) +766
System.Web.Profile.SqlProfileProvider.GetPropertyValues(SettingsContext sc, SettingsPropertyCollection properties) +428
System.Configuration.SettingsBase.GetPropertiesFromProvider(SettingsProvider provider) +410
System.Configuration.SettingsBase.GetPropertyValueByName(String propertyName) +117
System.Configuration.SettingsBase.get_Item(String propertyName) +89
System.Web.Profile.ProfileBase.GetInternal(String propertyName) +36
System.Web.Profile.ProfileBase.get_Item(String propertyName) +68
System.Web.Profile.ProfileBase.GetPropertyValue(String propertyName) +4
ProfileCommon.get_Theme() in C:WINDOWSMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Fileswroxunitedeecd65d2e1a6a798App_Code.ws-dzmjl.6.vb:114
Wrox.Web.GlobalEvents.ThemeModule.app_PreRequestHandlerExecute(Object Sender, EventArgs E) in C:WebsiteWroxUnitedApp_CodeThemeModule.vb:30
System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +92
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64
Version Information: Microsoft .NET Framework Version:2.0.50727.832; ASP.NET Version:2.0.50727.832
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Jan 17, 2007
If you were asked to install SQL 2005 on a machine, would u install a default instance or a named one? And why would u choose one over the other?? Also, r there any issues with using a default instance?
Thank you for all your help.
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