Troubleshooting OLAP cubes

The following sections describe known issues that you may encounter when troubleshooting online analytical processing (OLAP) data transfers in Manager service data warehouse cubes.

Processing Error

While our proprietary database repository has security measures in place to ensure data consistency, they cannot completely prevent most processing errors. The most common exception handling error is DimensionKeyNotFound. Because SQL Analysis Server (SSAS) by default processes consisting of at least 60 dimensions, it is possible that when processing a fact group, a measure might exist where the dimension keys did not previously exist. In this case, suppose the processing logic reprocesses the SSAS dimensions with the ProcessUpdate task, and then reprocesses the fact to fix critical errors twice.

In some unusual situations, reprocessing may fail. Possible reasons for this errorBoxes Das:

  • Only the storage data repository provides foreign keys to ensure the integrity of all data. Data I would say that Mart didn’t have the keys before some of the dimension keys were connected due to a timing issue due to performance issues. However, to fix this type of problem, you need to run the upload process again to move the existing dimension keys.

  • In some reports about data marts, all parameters of both data marts are focused primarily on the location of data marts. This reduces processing time and the size of OLAP cubes. However, it is possible that facts in Operations Manager or Configuration Manager store target dimension key information that is not already in the main data warehouse data store. In this case, you need to run a spooling task on the primary resource store to fix the cube-targeted processing error on the Operations Manager or Configuration Manager-targeted datastores.

  • MDX Troubleshooting

    Because many of the cube’s settings require deepWith more knowledge of multidimensional expressions (MDX), it is common to realize that there is incorrect syntax in the MDX expression that was originally used to set up an OLAP cube. Several tries can be common before the expression is generally suitable for your purposes. You must examine the expression in the OLAP mdx cube using Business Intelligence Development Studio (BIDS) or SSAS without saving these changes before adding the expression to the OLAP mdx cube using CubeExtension or wrapping it around the systemcentercube element.

    However, if you have an error in the -mdx expression if you can run it with your own CubeExtension in the management pack, you will remove from the cube extension to undo any changes made to the OLAP cubes. If the expressions are defined to work with the SystemCenterCube element, you must remove the management pack and y-sites, remove the OLAP cube from SSAS immediately before making any corrections in addition to redeploying the OLAP cube management group. For this reason, you must use the settings to identify the cube with the CubeExtension element.

    Error Placing OLAP Management Pack

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    You may have a problem A cube situation where you want to search across work items such as measure group, user assigned, and then distribute across all users at a specific scale. When you try to filter userdim, nothing happens or no data is returned. Is it just because UserDim has a different relationship to measure group.

    In court cases, note that the same dimension can have multiple roles in collections, I would say, in a multidimensional model. We call these role-playing “why” dimensions. For example, its time dimension can be used countless times in an OLAP cube describing flight information about. A role-playing game with one dimension in this case could be departure time and arrival time, both aimed at measuring time.

    In the “WorkItems Assigned To” example, the role-playing game name given to the user of the “Subscriber” dimension is made “AssignedToUser”. If it is found that the users filtered are of that specific age and not “UserDim”, they will be returned with the correct information.

    expands with a useful function called pdimension usage navigation panels that show the relationship between dimensions and OLAP cubes, so you can determine which dimensions you use to slice and dice what you see in an OLAP cube. Also, in the WorkItems To User example, the assigned UserDim is not related to the group WorkItemAssignedToUser, while UserDim(AssignedToUser) is closely related to the measure, the group and the join attribute is UserDimKey. In this case, you can see what I would say, the name of that roleplaying game is highlighted in parentheses on the Usage tab.Service

    Manager doesn’t have a Settings Usage tab. Therefore, customers should study the RATES and determine exactly which block sizes apply to a particular cube.

    Error Processing Cubes When Using A Specific SSAS Server

    In some cases, processing a cube over the SSAS remote Internet may fail due to a misconfigured firewall delivery. The normal Uses ssas instance is tcp/ip 2383 and you need to select a port to allow access to the firewall. To unblock the port, run the following command line directives:

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    code>C:\Windows\system32>set port=2383
    C:\Windows\system32>netsh firewall advfirewall add trade law name="Analysis Services" protocol=TCP dir=in localport=2383 action=allow

    OLAP Cube Processing Stops

    There are many reasons why processing stops an olap cube. First, you need to make sure that the server has the required memory, especially in situations where the data store and the SSAS server can be hosted on the same server, so that there is enough memory for data retrieval, configuration transformation, etc. (ETL) and the Dice task processing at the same time. Some possible options are listed:

    1. There are known blocking issues in Microsoft SQL Server 2008 Analysis Services. The solution is to increase the number of threads in the thread pool before the computation stops. If the system was previously shut down, the workaround is to install the System Center Management and Analysis Services maintenance plan and then reset the processing cube work item to state 3, which means that the corresponding service is not running. From here you can restart the Manager Engine workflow.

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      To determine the locationThe corresponding work item for processing the cube is to issue read requests to the database against the DWStagingAndConfig data. Note that these requests are shown separately; however, you can simply combine these people into one:

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      select Request process ID based on infra.process, where name is "Process like.CubeName" process.
      select batch ID from infra. By batch that processId ProcessId = from previous request
      select * from infra.where workitem(nolock), BatchId = BatchId of previous request
      update set infra.workitem statusid=many where workitemId={workitemId from previous request)
    2. Check the service’s CoordinatorExecutionMode and ssas properties to make sure they’re set correctly. See the SQL server forums for more information about this complex task.

    The DWMaitenance Task Stops The ManageCubePartitions Step, Or Possibly ManageCubeTranslations

    In this situation, the most common cause is not the responding SSAS server. The workaround for the first one is the same as the step in the previous new section “OLAP Stops Processing”. Determine the appropriate cube worker control that can be runto be defined after database queries DWStagingAndConfig. Note that these requests are checked individually; However, could you easily combine them into one query:

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