SQL Server Scalability
Jul 23, 2005
Could someone out there please help me to answer these questions?
Thanks in advance.
1. What aspects of SQL Server allow it to reliably scale up to support
a large global enterprise? And, when does SQL Server reliability
begin to fail?
2. Given a role-based security model and without doing a benchmark,
are there potential performance issues of using a SQL Server database ?
How would this change if more of the security was moved to the
application level or moved to the database?
3. How does SQL Server manage access to data at the record and data
field level?
4. w do support and administration requirements compare between SQL
Server (or MSDE) and Oracle? Consider levels of expertise needed from
central server to desktop implementations.
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Dec 5, 2007
Hi,
Whats the best way to test scalability on a database? I'm working on a new app, and have handed off developing the database to someone with more experience. Some tables will grow to many million records, and I don't want it to bottleneck. I need to have it fully tested before it goes live.
Is it reasonable to ask the person helping me to fill it with 10's of millions of rows to test performance? Is this a decent solution? If so, what would the best way to fill it be? If not, what steps should I take?
Thanks very much!
mike123
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Feb 14, 2007
hi all
i want to know that how much performance of ssrs will be vary when i m installing ssrs on same machine where my database is stored, or when i m storing ssrs on different machine and database on different machine.
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Nov 7, 2006
Hi, I'm looking for some recent surveys on the performance of ETL-Tools including SSIS and relates it to other ETL-vendors. Any ideas where to find valid stuff?
S.
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Nov 23, 2005
I am trying to find some information on recommended deployments, preferably with a diagram for a presentation.
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Mar 10, 2000
Hello All,
I was just looking for some rough estimates on the number of simultaneous users that SQL7 EE can support in a Web (IIS/ASP) environment. I know there are a lot of configuration issues that will effect the answer, but assume that there are a couple of IIS servers running WLBS that need to connect to the SQL database for query and update functionality. Of course, all access to the database will be controlled through stored procedures. Any thoughts would be most appreciated...
Thanks,
Chris
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Dec 5, 2007
Our databases were working fine in terms of performance until over the last 2 months wherein the timeouts and deadlocks have started increasing. We are having growing clients with huge real-time transactions. We have been adding NOLOCKs on queries that are being used frequently etc but the timeouts are still an issue. Not sure what the best way to identify problem areas is. The CPU utilization has also been on the higher side. Profiler identified long queries are being indexed etc. But the performance is still a concern. Any ideas? What am i not looking at? HELP HELP..
Thanks,
Sri
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Feb 28, 2008
I understand mount points help scalability in easier maintenance.
By scalability do we mean more than 26 drive letters or it means adding more space to the same mount point letter on with more ease .
Can I add more space to a mountpoint if required later on by adding hard disks .
Also if one can give some pointers to good file group configuration guidelines / storage align partitions , it will be very much helpful
Further I my server CPU has 4 cores , will having 4 filegroups help me in improving system performance.
If SAN has 2 controllers , is it preferred to run data file partition on one controller and log file partition on another.
Thanks in advance.
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Jul 12, 2006
We have a multi-lingual website (English, Spanish and German). We have a table called Posts that is potentially getting really big.
We are in the initial design phase of the database and would like to know what the experts are suggesting to keep our database mean and lean in the long run.
We have been talking about splitting the database up into 3 separate databases, one for English, one for Spanish and one for German. The language specific databases would also be hosted in countries where the language is spoken eg. the German database would be hosted in Germany.
Or maybe database partitioning by language???
Making changes to 3 databases once launched seems like a nightmare. It would be nice to have one main database and maybe 2 (Spanish and German) €œsatellite€? databases or something like that €“ any ideas???.
Any suggestions of how to deal with this problem the best way would be greatly appreciated. We are using SQL Server 2005.
Newbie!
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Jun 16, 2006
We are beginning to design a new application with SQL Server 2005. Our current production environment is slated to be two SQL Server 2005 machines with the databases residing on an EMC SAN. We have requirements to both have automatic failover between servers for availability and also be able to balance the load over two hot servers for scalability.
Can anyone point me in the right direction for things I need to consider in order to be able to implement both of these requirements? Can I implement database mirroring (for failover) and transactional replication (for balancing) given the hardware configuration I'v mentioned? Is more information needed? Where should I turn next?
I am coming off a mainly Oracle background for the last ten or so years with a smattering of SQL Server mixed in. I've tried to hit the ground running on this project, but sometimes find myself hitting the wall running instead.
Thanks,
Larry
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Jul 21, 2000
We have a high load site that requires some redesign. We would like to move the PK generation from a custom scheme to IDENTITY columns.
What are the any scalability issues for using IDENTITY? Will contention issues arise because of row locking?
Thanks in advance.
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Jan 25, 2006
Hi,First I would like to apologize for cross posting in three groups asI did not know which one would be the appropriate group. If some onepoints me to the correct one I will use that in the future.I am trying to findout the scalabilty of an user written extendedstore procedure. I have created a dll using a C program(modified/plagarized from some of the examples) . The main function ofthis extended SP is to act as a passthru to connect to an third partyODBC driver. All this is supposed to do is take the passthru sqlstatement, userid, passsword and connect to a remote server (IBM 3090Mainframe in our case) using a system ODBC connection and pass thereturned result set back to the stored procedure calling this extendedSP. I am trying to find out the answers for the following questions.1. What are the limitations of this approach.2. What would happen say if 2,000 concurrent calls per minute are madeto the extended SP from the web app.3. What would happen if this continued for say 4 hours. Will the memoryusage increase to point that will cripple the server assuming there isno memory leak in the dll.4. Are there any connection pooling concerns that I should payattention to specifically from an Extended SP point of view.5. Apart from compiling the dll using the "MultiThread" option should Ibe using other options to make sure the dll is threadsafe.SQL server Environment :OS - Windows 2000 Advanced Server SP4SQL - SQLServer 2000 Enterprise edition SP3Hardware - 8 way 2 node cluster with 6Gb RAMAny help regarding this is greately appreciated.Prahalad
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Apr 20, 2007
My server is a dual AMD x64 2.19 GHz with 8 GB RAM running under Windows Server 2003 Enterprise Edition with service pack 1 installed. We have SQL 2000 32-bit Enterprise installed in the default instance. AWE is enabled using Dynamically configured SQL Server memory with 6215 MB minimum memory and 6656 maximum memory settings.
I have now installed, side-by-side, SQL Server 2005 Enterprise Edition in a separate named instance. Everything is running fine but I believe SQL Server2005 could run faster and need to ensure I am giving it plenty of resources. I realize AWE is not needed with SQL Server 2005 and I have seen suggestions to grant the SQL Server account the 'lock pages in memory' rights. This box only runs the SQL 2000 and SQL 2005 server databases and I would like to ensure, if possible, that each is splitting the available memory equally, at least until we can retire SQL Server 2000 next year. Any suggestions?
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Aug 10, 2007
Hi,
We have an old machine which holds SQL server 2000 database. We need to migrate a whole database to a new machine which has SQL server 2005.
When we tried to move whole database using Import and Export Wizard, only tables can be selected to import/export. However we want to import/export the whole database, including tables, stored procedure, view, etc. Which tool should we use?
Thanks.
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Aug 10, 2007
Hi,
We have an old machine which holds SQL server 2000 database. We need to migrate a whole database to a new machine which has SQL server 2005.
When we tried to move whole database using Import and Export Wizard, only tables can be selected to import/export. However we want to import/export the whole database, including tables, stored procedure, view, etc. Which tool should we use?
Thanks.
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Jun 6, 2007
Hi,
When I am trying to access SQL Server 2000 database from another machine i got this error
Server: MSg 17, Level 16, State 1 [Microsoft][ODBC SQL Server Driver][DBNETLIB]SQL Server does not exist or access denied
but I could access the database on same server and in that server i could access other databases in different server.
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Feb 13, 2008
When I proposed start to use SQL Server 2005 for new VS 2005 web sites, one of my co-workers responded that
we will update the old SQL Server 2000 databases to SQL Server 2005 when we are ready to use 2005 SQL Server.
Questions:
1. Any expected problems to upgrade old 2000 databases to new 2005 SQL Server?
2. I have installed both 2005/Management Studio Express and 2000/Enterprise Manager in my PC. Any expected
problems when running both 2000 and 2005 SQL Server at the same database server?
3. What is the best configuration for running SQL Server 2005 when we have old 2000 databases? Upgade or not upgrade?
TIA,
Jeffrey
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Oct 20, 2007
I am getteing
need help
Query analyzer error Unable to connect server local Msg17, level 16,state 1
ODBC SQL server driver [DBNETLIB]SQL server does not exist
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Apr 3, 2008
Hi,
I am having a problem connecting my .net applications from the application server to the database server. When I run the application from my windows xp (sp2) box it works fine. When I try to connect via SQL Management Studio to the database server from the application server I get the same error.
Here is the error:
System.Data.SqlClient.SqlException: An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
Here is the Environment:
App Server:
Windows Server 2003 Standard Edition
Inside Company's Firewall/ Network
Database Server:
Windows Server 2000 Advanced Edition
SQL Server 2000 SP4
Remote Connections to the Server is checked
Enable Protocols: Named Pipes & TCP/IP
TCP/IP Port: 1402 (I don't know why it isn't the default of 1433)
The db server is sitting out side the Company's firewall (don't ask me why). I can access it fine from inside the firewall on my XP box but not from windows server 2003. There is a web server outside the our network that also connects to the db server with no problem and that is running Windows Server 2003 Web Edition.
I can ping the db server from the app server using the IP address.
I tried using the IP address and the port 1402 in my connection string but that didn't work from any machine (XP and Server).
I imagine the issue is somehow related to the company's firewall but why would it only block Windows Server 2003 and not XP?
What do I tell the network admin to change?
Any help would be appreciated.
Thanks,
Oran
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Jan 4, 2013
if you can restore a database to Server B using Server A as the service. Meaning we would issue the command on Server A but somehow point to Server B as where we want the restore to happen.
The backup file would be in a location independent of both servers.
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Jul 23, 2005
Dear all,On Win2000 server with SP3, I am trying to access a SQL Server 7.0database, "TestDB", from VB6 via a SQL Server ODBC system DSN using ADO2.7. In SQL Server Enterprise Manager, there is a login named "Tester".In its property window, NO "Server Roles" was assigned but its"Database Access" was set to "TestDB". This login was also made as theuser of "TestDB" with "public", "db_datareader" and "db_datawriter"selected as its "Database role membership". All the tables I am tryingto access in "TestDB" were created under "Tester".My code is like:Set conn = New ADODB.Connectionconn.Open "DSN=TestDSN;UID=Tester;PWD=test"Set cmd = New ADODB.Commandcmd.ActiveConnection = conncmd.CommandText = SQLset rs = cmd.Execute()If I set the SQL to something like "SELECT * FROM tbl_test", I alwaysget an error of "-2147217865" saying "[Microsoft][ODBC SQL ServerDriver][SQL Server] Invalid object name tbl_test". If I set the SQL to"SELECT * FROM Tester.tbl_test", everything runs properly. Could anyoneplease kindly advise why the first SQL is not working? Or in otherwords, why must I prefix the table name with its owner while the DBconnection is already made under that owner name? Thanks in advance.Tracy
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Sep 20, 2006
When I try to migrate a database on a SQL Server 2000 server to a SQL Server 2005 server with the Copy Database Wizard of the SQL Server Management Studio, I'm confronted with the following problem;
Performing operation...
- Add log for package (Success)
- Add task for transferring database objects (Success)
- Create package (Success)
- Start SQL Server Agent Job (Success)
- Execute SQL Server Agent Job (Error)
Messages
* The job failed. Check the event log on the destination server for details. (Copy Database Wizard)
When I take a look at 'Event viewer' on the SQL 2005 server, the following error is displayed;
InnerException-->An error has occurred while establishing a connection to the server.
When connecting to SQL Server 2005,
this failure may be caused by the fact
that under the default settings SQL Server does not allow remote connections.
(provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
I already enabled the MSSQLSERVER network configuration protocols (TCP/IP and Named Pipes ).
How do I solve this problem?
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Jan 22, 2008
My site works fine in VWD2008 express, but I get this error when I try to use it on my live website.
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections.
According to this article: http://support.microsoft.com/kb/914277 I am supposed to:
1.
Click Start, point to Programs, point to Microsoft SQL Server 2005, point to Configuration Tools, and then click SQL Server Surface Area Configuration.
Ok, there is no such program in this folder. The only thing in there is "SQL Server Error and Usage Reporting"...
The other thing I am greatly concerned with is this: All is want is for my webpages to be able to access my database for user authentication. I DO NOT want to grant the internet rights to remote connect to my database.
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Mar 24, 2008
Hi All,
Please some one help me...
I have to insert a csv into one table in sql server. But the problem is the file is in one server and SQL SERVER 2005 is in other server..
how do i insert the file....
please help me.....
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May 31, 2006
Hi Guys,
I have had SQL Server Express and Sql Server Management Studio Express installed on my machine for some time and recently tried to install a trial of SQL Server 2005 as well. (Yes, I'm migrating from Visual Studio Express to Visual Studio Professional, just as in tended!)
Everything went fine except that nothing seemed to be installed. I searched in all the obvious places - both on the Start/Programs menu and on the hard-drive: nothing.
A check under Add/Remove Programs showed that Sql Server 2005 Express was installed, but called SQL Server 2005.
So after a number of retries in which the install program kept saying that there was nothing to install, I selected every option under Advanced in the intall process. This resulted in stuff being installed and I now have SQL Server 2005 running on my machine, but no SQL Server Manager icon.
My questions are:
Where can I find the SQL Server Manager executeable?
Has anyone installed SQL Server Express, SQL Server Mangement Studio Express, SQL Server 2005 and SQL Server Management Studio on a single machine successfully? If so, what order did you install them in? (I'm planning on uninstalling everything SXQL Server related and starting again.)
Thanks very much for your help.
Regards
Gary
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Jul 23, 2005
Hi,Is it possible to install on a Windows server 2003,SQL SERVER 2000 in the folowing configuration :SQL server 7.0 as a default InstanceandSQL server 2000 as a named instance.Thanks for your answer.
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May 4, 2007
Hi
I have created a linked server from SQL Server 2005 (SP 1) to SQL Service 2000 (SP 4) with a sql server login that is available on both servers but with different passwords and permissions.
I am getting the following error while accessing the linked server in management studio based on the scenario given below ;
------ Error Message Starts
OLE DB provider "SQLNCLI" for linked server "(SQL Server 2000 instance name)" returned message "Communication link failure".
Msg 10054, Level 16, State 1, Line 0
TCP Provider: An existing connection was forcibly closed by the remote host.
Msg 18456, Level 14, State 1, Line 0
Login failed for user 'abc'.
------ Error Message Ends
Consider login name is abc.
Now this login abc has sysadmin rights on sql server 2005.
The same login abc has only db_datareader rights on sql server 2000 on just one database and is not associated with any fixed server role.
I have configured the linked server using the following options;
1. I have tried impersonating login from SQL Server 2005 to SQL Server 2000 .
2. I have also tried specifying remote login / password option.
Anyone having any idea, would be of great help.
Regards,
Salman Shehbaz.
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Jul 22, 2007
i did "Linked server" between To Servers , and it's Working.
---------------------------
For Example :
Server 1 =S1.
Server = S2.
i create table in S1 : name = TblS1
i create same table in S2 : name TblS2
and i create trigger(name tr_cpD) From S1 in TblS1 For send data To TblS2 in S2
/****************** trigger Code ***************
CREATE TRIGGER dbo.tr_cpD
ON dbo.TblS1
AFTER INSERT
AS
BEGIN
SET NOCOUNT ON;
insert into [S2].[dbname].[dbo].[TblS2] Select ID,Name from insertedEND
**************************************************
result is :
Msg 7399, Level 16, State 1, Procedure tr_cpD, Line 14
The OLE DB provider "SQLNCLI" for linked server "S2" reported an error. The provider did not give any information about the error.
Msg 7312, Level 16, State 1, Procedure tr_cpD, Line 14
Invalid use of schema or catalog for OLE DB provider "SQLNCLI" for linked server "S2". A four-part name was supplied, but the provider does not expose the necessary interfaces to use a catalog or schema.
how i can execute this trigger
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Feb 7, 2008
Hello,
I have an intranet environment consists of two servers:
- An application server windows 2003 server with 64-bit server Sharepoint 2007 SP1 (Standard version for search)
- A database server windows 2003 server with 64-bit SQL Server 2005 SP2 64-bit (Standard - 9.0.3054)
It happens regularly that the database server crash (frozen black screen) while the application server indexes (crawl) the content of the intranet site based on sharepoint. There is no alert / error in the observer of events, nor in the sql logs.
The crash is uncertain: dice once all goes well, soon after that crash. When i set the parameter search service (service management research), I can define a regulatory impact of the robot to change the number of documents at the same time : "Request 2 documents at the same time, the crash is more rare, "ask 64 documents at a time, the crash is more common.
My Intranet under sharepoint is composed of a collection site with a dozen sub-sites. There are 3 large library of PDF document. All done in the 4 go in terms of volume.
My problem for about 3-4 months. (Maybe more. Before, indexing was not yet in place).
Someone could help me? Thank you
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Apr 18, 2007
Can I connect from a SQL Server 2005 database to a SQL Server 2000 database, without establishing a linked server connection.
I need to fire a SELECT query on a SQL Server 2000 database, but don't want to add it as a linked server. Is there any way I can do this or its not possible??
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Apr 15, 2008
Hi all,
Please tell me about difference between SQL Server 2005 and SQL Server 2008 SSRS(Sql Server report)
Why to upgrade for Sql Server 2008
Thanks,
Ashok
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