SQL 2012 :: Using Resource Governor To Limit A Specific DB?
Jan 13, 2015
I was looking for a little insight on Resource Governor. I have a request from my manager to limit the resources a certain third party's DB can use on our system. We allow them to keep a DB on our SQL 2012 server so they can run query's to compare data to their server without linking the two machines.
I was looking into resource manager to perhaps accomplish this task but I'm not real familiar with it. If Resource governor can be used to only allow a DB named UserDB1 to use only 1GB or Memory at any one time?
Or perhaps there is another way aside from Resource governor?
I want to create a classifier function where I can restrict all the logins except two logins for the resource pool.
Case Scenario is : I am creating a resource pool and on that pool I want to restrict the users for that particular pool but I want to allow some of the user IDs full access to that databses so how could I create a script for that scenario.
How to restrict resources usage based on individual Databases in resource governor?
We have many databases in one instance; I would like to restrict resource usage to each database respectively.
I created 2 pools as pool_login, pool_DBNAME, and 2 workload groups as GroupLogin,GroupDBNAME, and also the classifier function.After setup above, I use following statement to check what sessions are in each group .
Even if there are spids which are accessing database DBNAME, I can’t see that they fall into the group GroupDBNAME and pool pool_DBNAME.
SELECT s.group_id, CAST(g.name as nvarchar(20)), s.session_id, s.login_time, CAST(s.host_name as nvarchar(20)), CAST(s.program_name AS nvarchar(20)) FROM sys.dm_exec_sessions s INNER JOIN sys.dm_resource_governor_workload_groups g ON g.group_id = s.group_id ORDER BY g.name GO
Following is the code to create pool, group,classifier function:
USE master GO; -- Create a resource pool pool_login. CREATE RESOURCE POOL pool_login WITH
[Code] ....
-- Create a workload group to use this pool.
CREATE WORKLOAD GROUP GroupLogin USING pool_login; GO CREATE WORKLOAD GROUP GroupDBNAME USING pool_DBNAME;
[code]....
-- Register the classifier function with Resource Governor.
ALTER RESOURCE GOVERNOR WITH (CLASSIFIER_FUNCTION= dbo.rgclassifier_v1); GO
I have enabled the query governor on our SQL2000 SP2 server with athreshold of 3600. Now, some of the maintenance jobs fail due to thelimit being to low (e.g. one of the user databases integrity checkfails nightly).I have tried to put the command 'SET QUERY_GOVERNOR_COST_LIMIT 0' justbefore the line in the step which reads 'EXECUTEmaster.dbo.xp_sqlmaint N'-Plan etc'but it has no effect.Does anyone know how to get around this situation without usingsp_configure to change the query governor settings at a systemwidelevel?GC.
I want to turn on the query governor cost limit option for 20 minutes so that queries do not run longer than 20 minutes but I could not find any info as if this option would also not allow database backup job or other maintenance jobs to run more than 20 minutes. We have backups (Via RedGate) run over 3.5 hours and others like rebuild indexes and integrity checks even more than 3.5 hours....
How to get Instance wise CPU resource utilization report in sql server 2012? I have 2 sql server instance INST1 and INST2 running in window server 2012.I want report like this
I have a server which is using total of 12 cores running an instance of SQL server. I was told to dedicate only 8 cores of CPU to be used by the instance for licensing purposes.
what the best way is to go about limiting CPU cores?
SQL Server 2012.If I create a table with 307 columns, all of type nvarchar(50), it works. If I add another column of type nvarchar(50), it works but I get a warning:
Warning: The table "RowSizeError" has been created, but its maximum row size exceeds the allowed maximum of 8060 bytes. INSERT or UPDATE to this table will fail if the resulting row exceeds the size limit.
307 x 50 = 15350 and 308 x 50 = 15400. why I get the warning below with 308 columns but not with 307?
drop table [RowSizeError] go CREATE TABLE [RowSizeError]( [F1] [nvarchar](50) NULL, [F2] [nvarchar](50) NULL, [F3] [nvarchar](50) NULL,
Is there a performance limit on the number of indexes per table / database ? With Filtered indexes there appear to be many more opportunities for more finely defined, and therefore smaller indexes resulting in many more indexes on a single table.
I've read here at [URL] that with 32 bit it's recommended to only have 10 database mirrors per instance. However, is there a limit for 64 bit SQL Server 2012?
We're having a problem where we have about 300+ databases and now any new db's we add are timing out when it comes to setting up mirroring and am wondering if this is limited by the instance.
I have a simple SP that returns 2 columns with 4 inner joins, results are about 100 odd rows max, nothing complicated. When I run the SP via SSMS it works fine, as soon as this is run via an application server the SP fails to complete with the error :
Internal error: An expression services limit has been reached. Please look for potentially complex expressions in your query, and try to simplify them.
We are not getting anywhere near the expression limit so I cannot understand why we are suddenly receiving this error. 2 weeks ago this query was running fine, no updates have been rolled out to the SQL database servers or application servers but the error is suddenly appearing on both prod and dev environments.
I want to select all the records, and them them be in alphabetical order first by lastname, then by firstname, then by address. HOWEVER, and this is the tricky part, I want to group names together that have the same address. So, in this example, I want the results to be in this order:
HallC6309 N Olive HallP6309 N Olive <---- grouped with the C record because they have the same address HallE5488 W Catalina <---- back to alphabetical by first name HallJ7222 N Cocopas
I have an SQL .bak file and I would only like to restore specific columns as one of the columns is a free text field and is substantially increasing the size of the file. I can't restore it due to disk space constraints so dropping the column isn't possible if I can't get the table into a database locally.
I need to return 1 ip address for each machine. I can easily achieve this with using group by and return max(ipaddress) however I would like to filter out specific range '192.168.%' but only want to do that if machine has more then 1 ip address. If the machine has only 1 ip address then it can return it even if its '192.168.%'
below is test table to show sample data
CREATE TABLE dbo.[testip]( [machineid] INT NULL, [ipaddress] [varchar](20) NULL ) GO INSERT INTO [dbo].[testip] ([machineid],[ipaddress]) VALUES (1,'155.119.1.22') INSERT INTO [dbo].[testip] ([machineid],[ipaddress]) VALUES (1,'192.168.1.5')
Hi - does the workload governor kick in when more than 8 concurrent operations take place on MSDE as a whole, or does it kick on each database.
Ie. if I have 8 databases within MSDE - and there is 1 operation happening on each one at any given time, will one additional operation on any of the databases invoke the workload governor across ALL databases?
I am in the process of porting over an application from Access To SQL implementing SQL Server 2005 Express. My intention is to implement this database on a full time server and upgrade to a full blown version of SQL later. Am I correct in assuming that there is not limit on the number of concurrent connections to SQL Server Express since it was stated that the "Workload Governor" has been removed? Or does something else control the number of users that can be simultaneously connected to the server.
My reason for asking is I have 7 machines that need to access the server. I also have 2 databases that need to be accessed from each machine. If there is no limit, I will keep my databases seperate. However, if there is a limit, I will most likely merge the tables into 1 db.
write a query which retrieves only unique rows excluding some columns.
IdStatusmanager Team Comments Proj number Date 19391New XUnassigned One 3732.0 16-Apr-14 19392Can YCustomer Two 3732.0 17-Apr-14 19393Can YCustomer Two 3732.0 17-Apr-14 19394Can YCustomer One 3732.0 18-Apr-14 19395New YCustomer One 3732.0 19-Apr-14 19396New YCustomer One 3732.0 21-Apr-14 19397New ZCustomer One 3732.0 20-Apr-14
In the above table project number and id shouldn't be considered and I should get the unique rows considering rest of columns and sorted based on date. Expected result is
IdStatusmanager Team Comments Proj number Date 19391New XUnassigned One 3732.0 16-Apr-14 19392Can YCustomer Two 3732.0 17-Apr-14 19394Can YCustomer One 3732.0 18-Apr-14 19395New YCustomer One 3732.0 19-Apr-14 19397New ZCustomer One 3732.0 20-Apr-14 19396New YCustomer One 3732.0 21-Apr-14
I've got an OLEDB DB2 linked server to a db2/AS400 instance and selecting from a table on the server has never caused problems before. One of the columns is a large text field. If I select all the columns but the large text field, it returns as normal, but including the large text field now, I get:
"Transport error: shared memory provider error: 0 - no process is on the other end of the pipe"
The largest entry in the text field is about 5k characters, and there don't appear to be any strange characters.
INSERT INTO Query_results(login_name, total_elapsed_time, total_elapsed_time) SELECT login_name, total_elapsed_time, total_elapsed_time FROM sys.dm_exec_sessions
I need to then kill all sessions at 11:59pm then log all those that are killed. This is so I can schedule a job at that time, I have sessions that are blocking my job.
I have written a SQL statement.There is a table called customer.It contains all customer data with customerid as PK.There is another table called logs and it contains customerid as foreign key and it contains a field to keep more than 90 days older user accounts.That field name is "Checked"
What I need get all records from these 2 tables and remove/hide more than 90 days older customers from record set.See my illustration.
I have written this code but I dont understand how to remove more than 90 days older user from result (because customer table doesnt contain a record called "Checked")
SELECT * FROM [dbo].[Customers],[dbo].[VIESLog] WHERE [dbo].[VIESLog].[Checked] < DATEADD(day, -90, GETDATE())
I know that the query governor works off of estimated query plans, but the estimation is usually so far off from reality that it might as be generating a random number to determine whether a query should run.
Right now I have query governor set at 300. I've been able to run queries that take more than 10 minutes without any complaint from query governor.
What's really annoying though, is that it has also blocked queries that take less than a second to run. It blocked a query for having an estimated executing time of 338 seconds. When I set the limit up to 400, the query ran virtually instantly.
Is this just how query governor is suppose to work? Is there any way to make it work better?
Today we were trying to use restore wizard (recovery advisor) to restore a database which is over 80 GB, but the wizard won't load or start. However the wizard dialog box opens without any problems with all other databases stored in the instance. Is there any problem or reason to why the restore wizard won't come up?
This is SQL 2012 enterprise version we are running.
I'm trying to configure a named instances of SQL Server 2012 SP2 to have specific IP addresses and listen to that IP on port 1433. Alongside this, I have the default instance running on a different IP and listening to that on port 1433.I've managed to get them configured so that they are reachable using the IP, and looking at the log for each they are listening correctly on that IP on port 1433; in addition, the default instance connects fine using the SERVERNAME.However, when I try and connect to the named instance using the SERVERNAME/INSTANCENAME syntax, I receive the following:-
"Cannot connect to SERVERINSTANCE. Instance failure. (System.Data)"
Configuration for the TCP/IP protocol for that instance is as follows:-
Protocol Tab
Enabled= Yes Keep Alive = 30000 Listen All = No
IP addresses Tab
IP1 Active = Yes Enabled = Yes IP Address = 10.1.1.1 TCP Dynamic Ports = 0 TCP Port = 1433
[code]...
The SQL Browser service is running and prior to switching off Listen To All, I could connect to the instance remotely using the instance name.
I wanted to demonstrate something about CXPACKET wait type. For the purpose of this demo I've created a query in AdventureWorks database that uses a parallel query plan, an extended events session that captured the wait statistics for a single session and a query that shows the extended event's data. I ran it and it worked fine. Then I dropped and recreated the event session (to clear the data), in a new window I wrote a transaction that updated the table fallowed by waitfor statement so the first query will be blocked for few seconds and ran the whole thing again. The select statement was blocked as expected (ran for 9 seconds instead on 1 second as it ran without the blocking), but the wait stats that I got were almost identical to the those that I got without blocking the query.
--Query that uses parallel query plan With MyCTE as ( select top 50 * from Sales.SalesOrderHeader) select top 10000 * from Sales.SalesOrderHeader, MyCTE order by newid()
