Analysis Services Architecture

Hi All,
Can anyone suggest some materials to understand the architecture of SSAS.
I have some idea about the file structure and bitmap indexes but I would like to have an in-depth understanding of the same.
Thanks for the help and support
Abhishek

Here are some articles:
Analysis Services Architecture
Logical Architecture Overview (Analysis Services - Multidimensional Data)
Kalman Toth Database & OLAP Architect
Free T-SQL Scripts
New Book / Kindle: Exam 70-461 Bootcamp: Querying Microsoft SQL Server 2012

Similar Messages

Imapact of SQL Server Analysis services

Hi
What will be the impact of installing analysis services on an existing SQL Server database which is shared among different web applications Project Server 2013 (PWA) and other SharePoint Applications?In my
environment SQL Server database is shared between PWA and another sharepoint web applicaiton, so before installing I want to understand its impact on database and the other SharePoint Web application.
Please help
Himanshu
Himanshu

I may impact your Server and SQL Server performance significantly.
This is a common architecture in which both the SQL Server relational DB Engine and Analysis Services instances are running on the same server. In this scenario, it is absolutely crucial to override the defaults for both instances in order to prevent resource
contention, memory pressure, and (in the worst case) memory exception errors.
Consider
SQL Server memory configuration after installing Analysis services, which includes
Minimum Server Memory
Maximum Server Memory
Minimum Memory per query (only for advance users)
At the same time you have to set the
memory configuration for SSAS engine also you have to consider
LowMemoryLimit
TotalMemoryLimit
HardMemoryLimit
Remember, other than SQL Server and Analysis service other application in your server will be consuming memory. And the most important part is to leave memory for OS to run properly.
So, General formula to set Hard limit of SSAS could be (but not limited to)
Hard Memory Limit = Total Physical Memory - SQL Server Instance min - OS memory (include other application too)
Disclaimer: Above formula is just for demonstration purpose only; should not be applied
on production without complete analysis.
Worth to notice that SSAS does create its own database for cube so other than memory you need to plan about disk space (if you have limited space)

Refreshing the Data Source View in Analysis Services

I have added columns to the SQL Database table that is used as a dimension in an Analysis Services Cube. The new columns will be used as additional Property Fields for the dimension. When I attempted to refresh the Data Source view so that the additional columns are present, I am given the following error:
System.Data
Property not accessible because 'Parent Columns and Child Columns don't have type-matching columns'
I have done nothing to the columns used for the parent of child and the error message provides nothing to gon on. Does anyone have any ideas on this?
Gary

Olga,
Thanks for your response. I will try and answer your questions
1) I have not tried removing the columns yet. I will try that this afternoon but have limited hope. The two columns I added are simple text columns that will be used as attributes in the dimension. I have made no change to the parent or child columns.
2) The table I modified is the source table for a parent-child dimension.
3) The reference to the "check list" does not take me to any kind of check list.
4) The parent-child dimensions I am trying to modify have been in use for months and the parent and child columns do have the dame data types.
5) I have also check the data types between the dimension table and the fact table. they use the same data types (small int).
6) I have not made a collection for the parent key, it is a single column. The remainder of your last paragraph is not clear to me. Can you give me an example.
I am fairly inexperienced with Analysis Services, please talk slow and use small words :-)
Thanks again for your help!
Gary

[Forum FAQ] How do I create calculated measure using AMO in SQL Server Analysis Services?

Introduction
In SQL Server Analysis Services (SSAS), you can create a calculated measure in SQL Server Data Tool (SSDT)/Boniness Integrated Development Studio (BIDS). Sometimes you may need to create calculated measure by using AMO in a C# or VB project.
In this article, I will demonstrate so how to create calculated measure using AMO in SSAS?
Prerequisites
Before create calculated measure using AMO, you need to ensure that the following components were installed in your server.
The multidimensional database AdventureWorks Multidimensional Model 2012
A SQL Server with SSIS and SSAS installed
The AMO libraries installed:
X86 Package (SQL_AS_AMO.msi)
X64 Package (SQL_AS_AMO.msi)
Solution
Here is the detail steps to create calculated measure using AMO in SSAS.
Open SSDT and create a new SSIS project.
Drag Script Task to the design surface.
Click SSIS-> Variables to open the Variables window and add two variables that used to connect to the server and database.
Create a connection to connect to SSAS server.
Rename the connection name to ssas.
Double click the Script Task to open Script Task Editor.
Add Connection and Database variables to ReadWriteVariables textbox and then click Edit Script button.
Add AMO reference in the Solution Explore window.
Copy the script below and paste it into the script.
Dim objServer As Server
Dim objDatabase As Database
Dim strDataBaseID As String
Dim objCube As Cube
Dim objMdxScript As MdxScript
Dim objCommand As Command
Dim strCommand As String
objServer = New Server
objServer.Connect("localhost")
objDatabase = objServer.Databases("AdventureWorksDW2012Multidimensional-EE2")
strDataBaseID = objDatabase.ID
If objDatabase.Cubes.Count > 0 Then
objCube = objDatabase.Cubes("Adventure Works")
If objCube.MdxScripts.Count > 0 Then
objMdxScript = objCube.MdxScripts("MdxScript")
objMdxScript = objCube.MdxScripts(0)
Else
objCube.MdxScripts.Add("MdxScript", "MdxScript")
objMdxScript = objCube.MdxScripts("MdxScript")
End If
objCommand = New Command
strCommand = "CREATE MEMBER CURRENTCUBE.[Measures].[Multipy Measures By 3]"
strCommand = strCommand & " AS [Measures].[Internet Sales Amount] * 3, "
strCommand = strCommand & " VISIBLE = 1 ; "
objCommand.Text = strCommand
objMdxScript.Commands.Add(objCommand)
objMdxScript.Update()
objCube.Update()
End If
objServer.Disconnect()
Then you can run this SSIS package to create the calculated measure.
Applies to
Microsoft SQL Server 2005
Microsoft SQL Server 2008
Microsoft SQL Server 2008 R2
Microsoft SQL Server 2012
Please click to vote if the post helps you. This can be beneficial to other community members reading the thread.

Thanks,
Is this a supported scenario, or does it use unsupported features?
For example, can we call exec [ReportServer].dbo.AddEvent @EventType='TimedSubscription', @EventData='b64ce7ec-d598-45cd-bbc2-ea202e0c129d'
in a supported way?
Thanks! Josh

Unable to start Web Analysis .Service Temporarily Unavailable

Hi,
I am using the following URL to access Web Analysis http://testdb.xxx.xxx.xx:19000/WebAnalysis/WebAnalysis.jsp. But it throws up the following error -
"*Service Temporarily Unavailable, the server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.*"
FYI
1. I'm using EPM 11.1.1.3 on Linux Server (Tikanga)
2. Planning, Shared Services, Workspace, Essbase etc. are working fine. The problem is only with Web Analysis. However, even Web Analysis was working fine in the not-so-distant past.
I have tried stopping and starting the Web Analysis service but that doesn't seem to help.
Any ideas would be appreciated.
Thanks & Cheers,
Sahil

Just to add to my first post, i am facing the following issues:
1. When I restart the Web Analysis service
[hypappl@testdb bin]$ cd /oracle/hyp/app/deployments/Tomcat5/bin
[hypappl@testdb bin]$ ./startWebAnalysis.sh restart
WARNING: Access to a frame buffer device, or virtual frame buffer device
is required for chart rendering. DISPLAY is not currently set.
Please modify /oracle/hyp/app/deployments/Tomcat5/bin/setCustomParamsWebAnalysis.sh.
WARNING: Access to a frame buffer device, or virtual frame buffer device
is required for chart rendering. DISPLAY is not currently set.
Please modify /oracle/hyp/app/deployments/Tomcat5/bin/setCustomParamsWebAnalysis.sh.
WARNING: Access to a frame buffer device, or virtual frame buffer device
is required for chart rendering. DISPLAY is not currently set.
Please modify /oracle/hyp/app/deployments/Tomcat5/bin/setCustomParamsWebAnalysis.sh.
Using CATALINA_BASE: /oracle/hyp/app/deployments/Tomcat5/WebAnalysis
Using CATALINA_HOME: /oracle/hyp/app/common/appServers/Tomcat/5.5.17
Using CATALINA_TMPDIR: /oracle/hyp/app/deployments/Tomcat5/WebAnalysis/temp
Using JRE_HOME: /oracle/hyp/app/common/JRE/Sun/1.5.0
2. When I start service from biplus folder
[hypappl@testdb bin]$ cd /oracle/hyp/app/products/biplus/bin
[hypappl@testdb bin]$ ./start.sh restart
WARNING: Access to a frame buffer device, or virtual frame buffer device
is required for chart rendering. DISPLAY is not currently set.
WARNING: Access to a frame buffer device, or virtual frame buffer device
Please modify /oracle/hyp/app/deployments/Tomcat5/bin/setCustomParamsFinancialReporting.sh.
is required for chart rendering. DISPLAY is not currently set.
Please modify /oracle/hyp/app/deployments/Tomcat5/bin/setCustomParamsWebAnalysis.sh.
WARNING: Access to a frame buffer device, or virtual frame buffer device
is required for chart rendering. DISPLAY is not currently set.
Please modify /oracle/hyp/app/deployments/Tomcat5/bin/setCustomParamsWebAnalysis.sh.
3. When I run the setCustomParamsWebAnalysis.sh
[hypappl@testdb bin]$ ./setCustomParamsWebAnalysis.sh
WARNING: Access to a frame buffer device, or virtual frame buffer device
is required for chart rendering. DISPLAY is not currently set.
Please modify .
WARNING: Access to a frame buffer device, or virtual frame buffer device
is required for chart rendering. DISPLAY is not currently set.
Please modify .
WARNING: Access to a frame buffer device, or virtual frame buffer device
is required for chart rendering. DISPLAY is not currently set.
Please modify .
4. And finally, when I try to open Web Analysis reports from Workspace -> Explore, I get the below error
Required application module analyzer.reportview is not configured. Please contact your administrator.
Web Analysis was working just fine until recently. Now the problem is only with WA. Everything else is working as it should If nothing gets Web Analysis up and running again, is there a way I can retrieve my saved report files? I can view these files from Workspace -> Explore -> Reports folder.
Thanks,
Sahil

MS SQL database needs to run mdx query to analysis services to retrieve data from a BPC 10 Netweaver cube(view only)

We are in the process of migrating from BPC7 SP12 Microsoft sql server to BPC10 netweaver on a sql server with BW7.4 and need to integrate our home grown data warehouse which is on a Microsoft sql server. The data warehouse currently connects to BPC7 using integration services/analysis services and runs mdx queries to analysis services to retrieve data from the BPC7 cube (view only). Please provide documentation on how to create this same integration with our data warehouse using BPC10 netweaver on a sql server.

When you were setting up your ODBC data source for
the Text driver, did you click on the "Options"
button? There's a lot of options in there that I
didn't understand at first glance.Yes I clicked on the options button, but the only thing there is dealing with file extensions. I left it set to the default.
I have since tried closing my connection after I insert a record, I then try executeQuery, but still no luck. Seems strange that I can write to the file but not read from it. If any thing I'd expect the opposite problem.
I have also tried using the class "JoltReport" from the sun tutorial instead of my own with the same result.
Message was edited by:
Hentay

What permission required to Browse Cube in Analysis Services.

Hi
I have a request where user want to browse cubes in SSMS for analysis services. I dont want to give him (Full control administrator) . when i tried other permission read / process data then he is not able to browse cube.
Even if give him full control role then while rebuilding cube these permissions will removed.
How can i give user access to just view cube , there meta data , objects in ssms
Thanks Saurabh Sinha
http://saurabhsinhainblogs.blogspot.in/

Hi Saurabh,
According to your description, you are trying to grant browser permission to the users without success, right?
Roles are used in Microsoft SQL Server Analysis Services to manage security for Analysis Services objects and data. Cube access by a non-administrator requires membership in a role created for the database containing the cube. Membership is supported
for Windows user or group accounts, defined in either Active Directory or on the local computer.
So in your scenario, please ensure that the grant permission steps are correct, you can refer to the links below to do it.
http://technet.microsoft.com/en-us/library/ms174840(v=sql.110).aspx
http://msdn.microsoft.com/en-in/library/ms174799.aspx
Regards,
Charlie Liao
TechNet Community Support

The schedule in Power BI report refresh error with the powerpivot or powerview with SQL Analysis services as data source

In the Power BI Admin Centre, the data sources that cannot be setup with Analysis services, and it has the error to schedule the powerpivot or powerview report to have data refresh. The error is "我們無法重新整理此報表中的資料來源種類。" - english, "We
can not rearrange the source of information in this report types ." We would like to know the power bi schedule function can support SQL analysis service or not. Please advise. Thanks.
Winsee

It is not currently supported. You might be able to create a linked server in SQL to be a proxy for the connection and enable scheduled refresh if you are desperate.
https://support.office.com/en-US/Article/Supported-data-sources-cb69a30a-2225-451f-a9d0-59d24419782e#__supported_data_sources
http://artisconsulting.com/Blogs/GregGalloway

Permanently change default error configuration in Analysis Services 2005

Hi,
Currently, I am working on a BPC 5.1 application. The data for this application is loaded(inserted via SQL statement) right to the FACT table and then a full process is run for that cube via an SSIS package using the Analysis Services Processing Task. Often records are loaded this way where a dimension member for some of the records has not been added to the Account dimension yet. These records after loading are considered 'orphan records' until the accounts are added to the account dimension.
This loading process is used because of the volume of records loaded(over 2 million at a time) and the timing of the company's business process. They will receive data sometimes weeks before the account dimension is updated in BPC with the new dimension members.
If I try and process the application from the BPC Administration area with these orphan records in the FACT table, the processing stops and an error displays. Then when I process the cube from Analysis services, an error is displayed telling me that orphan data was found.
A temporary work-around is to go into the cube properties in Analysis Services 2005, click on Error Configuration, uncheck 'Use default error configuration' and select 'Ignore errors'. Then you can process the application from BPC's Administration page successfully. But, the problem is that after processing the application successfully, the Analysis Services Error Configuration automatically switches back from 'Ignore errors' to 'Use default error configuration'.
Does anyone have any suggestions on how to permanently keep the 'Ignore errors' configuration selected so it does not automatically switch back to 'Use default error configuration'? Prior to BPC 5.0 this was not occurring.
Also, does anyone know why this was changed in BPC 5.0/5.1?
Thanks,
Glenn

Hi Glenn,
I understood the problem but I can say that it was a bad migration of appset from 4.2 to 5.0.
Any way they are using a dts package to import data into our fact table. That's means they have to add another step into that package where they have to do the verfications of records before to insert into fact table. Verfications can be done using the same mechanism from our standard import. Just edit that package and add similar steps into customer package.
Attention you need somebody with experience developing DTS packages with for BPC to avoid other problems.
One of big benefits from 5.X compare with 4.2 was the fact that we are able to use optimization schema and aggregations for cubes.
Heaving that orphan records it is not possible to use optimization schema for cubes and you are not able to create good aggregation into your cube.
So my idea is to provide all these information to customer and to try to modify that package instead to enable that option which can cause many other issues.
Sorin

Account Dimension not showing all members in the cube in Analysis Services

Hi,
         In SAP - BPC 5.1 after processing account dimension all the members are created under account dimension in analysis services but the same cannot be found in the data cube. Hence the reports generated through SAP - BPC is not showing all the members.
         The issue looks very strange as we can see the members getting created but the same is not getting populated in the cubes. I am not able to visualize what exacly the issue is? Is it with the application or with the analysis services?
Thanks
Sharath

Your sixth sense is correct, there is definitely support in MSAS and BPC 5.1 for multiple hierarchies in the account dimension.
I'm also referring to parentH1 and parentH2, but perhaps we're still speaking of different things.
In the past, I faced a very similar problem as you, and the root cause was because I had one member, let's call it FancyParent, which, in H1, had children Child1 and Child2.
But in H2 it had children Child1, Child2 and Child3. I forget now if that was how I wanted the setup to be, or if it was a mistake on my part, but either way, MSAS doesn't allow this. The admin consol didn't complain when processing the dimension -- this was in Outlooksoft 5.0; perhaps validation has improved now.
But the cube was completely unworkable. Certain things were calculating correctly, but everything in the account dimension in the area around FancyParent (above and below it, in both hierarchies) was quite unpredictable.
By disabling first one, and then the other, of the two hierarchies, and disabling blocks of accounts, I was eventually able to pinpoint the problem. But it took days to figure out what was the problem. (The account dimension had 2500 members and 4 hierarchies, and it was not a pretty sight.)
A parent must have the same definition of children in all hierarchies. It can't, as another example, have children in H1, and be a base member in H2. Each member can have different parents in the two hierarchies, but must always have the same children in both.
To work around this problem, I had to create two separate accounts NetIncomeH1 and NetIncomeH2 (and PretaxIncomeH1, PretaxIncomH2, etc. all the way down to the point where they branched off), to get the two separate aggregations of the P&L in the two hierarchies. Once I did that, it made sense to me why, but I also swore off on frivolous extra hierarchies ever again.

Power BI analysis services connector - the remote server returned an error (403)

Hi all, does any one have any suggestions what to try to identify the configuration problem I have?
I have, a SSAS 2012 tabular instance with SP2, there is a database on the instance with a read role with everyone assigned permissions.
When configuring the Power BI analysis services connector, at the point where you enter Friendly Name, Description and Friendly error message, when you click next I receive the error "The remote server returned an error (403)."
I've tested connecting to the database from Excel on a desktop and connect fine.
I don't use a "onmicrosoft" account so don't have that problem to deal with.
We use Power BI Pro with our Office 365. As far as I can tell that part is working ok as I pass that stage of the configuration with a message saying connected to Power BI.
The connector is installed on the same server as tabular services, its a Win2012 Standard server. The tabular instance is running a domain account that is the admin account for the instance (this is a dev environment) that account is what I've used in the
connector configuration. It's also a local admin account. There is no gateway installed on the server.
Any help would be greatly appreciated, thanks, Brian
Brian Searle

Brian-
One other common issue I've seen is the UPN not quite matching. Log onto the SSAS server as the user who's logged into Power BI. Then open a command prompt and run:
whoami /upn
Hopefully the UPN it says will match your EffectiveUserName test and will match exactly how you're signing into the Power BI site.
If that doesn't work, your best bet is to go to
http://support.powerbi.com/ and click Contact Support and describe this situation and someone from the Power BI support team should get in touch with you to troubleshoot.
http://artisconsulting.com/Blogs/GregGalloway

Analysis Services Processing Task - Error processing

Hi all,
I have a SSIS package containing an Analysis Services Processing Task. In case it fails, I want to insert the error messages in a table. I have create an SSIS package that fails because of dimension values that are not in the fact table. The package fails and
shows a number of errors in the debug window:
Error: 0xC1000007 at Create Cube, Analysis Services Execute DDL Task: Erreur interne : L'opération n'a pas abouti.
Warning: 0x811F0001 at Create Cube, Analysis Services Execute DDL Task: Erreurs dans le moteur de stockage OLAP :
Clé d'attribut introuvable lors du traitement de : Table : 'dbo_SSIS_DATA', Colonne : 'PRODCODE', Valeur : 'HUME'. L'attribut est 'PRODCODE'.
SSIS package "Step 2 - Create Cube.dtsx" finished: Failure.
However in the error list window there are 0 errors and 0 warnings.
So, why doesn't it show an error message in the error list when the package clearly fails. And how can I get the error messages from the log into a table? Thanks in advance.
Hugo

Error list does not reflect what is getting to be logged, it is more for package validation.
But the same errors will show up in the status, and the output window.
Furthermore, if your log is table bound (e.g. the sysssiserrorlog) and in the log config you chose to log the OnError events then these will be captured automatically.
Arthur
MyBlog
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SQL Server 2005 agent job runs a SSIS package ( Analysis Services Processing Task) fails

Hi,
SQL Server 2005 standard edition.
I have a SSIS package which has a Analysis Services Processing Task. I have tested the package in BIDS and it runs ok. But when I created a agent job and run it from the job it reports error:
Code: 0xC0012024 Source: Analysis Services Processing Task Description: The task "Analysis Services Processing Task" cannot run on this edition of Integration Services.
It requires a higher level edition.
This is the result of select @@version
Microsoft SQL Server 2005 - 9.00.4035.00 (Intel X86) Nov 24 2008 13:01:59 Copyright (c) 1988-2005 Microsoft Corporation Standard Edition on Windows NT 5.2 (Build 3790: Service Pack 1)
Any idea?

Hi,
SQL Server 2005 standard edition.
I have a SSIS package which has a Analysis Services Processing Task. I have tested the package in BIDS and it runs ok. But when I created a agent job and run it from the job it reports error:
Code: 0xC0012024 Source: Analysis Services Processing Task Description: The task "Analysis Services Processing Task" cannot run on this edition of Integration Services. It
requires a higher level edition.
This is the result of select @@version
Microsoft SQL Server 2005 - 9.00.4035.00 (Intel X86) Nov 24 2008 13:01:59 Copyright (c) 1988-2005 Microsoft Corporation Standard Edition on Windows NT 5.2 (Build 3790: Service Pack 1)
Any idea?
Anyway, I have found a work around:
http://technet.microsoft.com/en-us/library/ff929186.aspx

Analysis Services failing to Start . File system error: Error occurred during the creation of directory

Hello All,
Posting this problem here and hoping for a solution from the experts in this forum.
When i have restarted the Analysis Services , i see that it has been stopped but never started back. It fails with an error
"The SQL Server Analysis Services (MSSQLSERVER) service on Local Computer started and then stopped. Some services stop automatically if they are not in use by other services or programs."
When Checked the Event Viewer i see the following error -
The service cannot be started: The following system error occurred: The filename, directory name, or volume label syntax is incorrect. File system error: Error occurred during the creation of directory: '\\?\E:\OLAP\MSSOLAPFactory\OlapData;M:\Test
Backup'.
I remember changing the BackupDir value of Analysis Services few days back, and i think it could have impacted. Can you please help me how can i change back the BackupDir value and have the server back?
Let me know if you need any more details
SG

Is this still an issue? If so, I would find msmdsrv.ini and make sure you don't have two folders listed in the BackupDir (or DataDir or TempDir). You'll have to runas Administrator to edit the msmdsrv.ini file and save changes. Once you fix that, it should
succeed.
http://artisconsulting.com/Blogs/GregGalloway

How to find Collation setting for Analysis services in Sql server 2000

Hi
Can some please guide me how do I check Collation setting for Analysis services in Sql server 2000
i need it to install Analysis servcies on my machine

Hi SMV123,
We can find the collation settings for Analysis services in SQL Server Management Studio (SSMS). Connect to the SSAS instance from within SSMS->Right click on the instance and select Properties->An Analysis Server properties page will appear. And then
on the left hand side is a Language /collation option.
Besides, here is a link about how to install SQL Server Analysis Services 2000 for your reference.
How to Install SQL Server 2000 Analysis Servicese
Regards,
Charlie Liao
Charlie Liao
TechNet Community Support

Analysis Services Architecture

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