Skip to main content

Microstrategy Caches explained

Microstrategy Caches

Improving Response Time: Caching

A cache is a result set that is stored on a system to improve response time in future requests. With caching, users can retrieve results from Intelligence Server rather than re-executing queries against a database.


To delete all object caches for a project
1In Developer, log into a project. You must log in with a user account that has administrative privileges.
2From the Administration menu, point to Projects, and then select Project Configuration. The Project Configuration Editor opens.
3Expand Caching, expand Auxiliary Caches, then select Objects.

To delete all configuration object caches for a server

1Log in to the project source.
2From the Administration menu in Developer, point to Server, and then select Purge Server Object Caches.
4Click Purge Now.


To purge web cache follow the steps in the link below:

To purge various other caches go the MSTR link below: 

Improving Response Time: Caching

A cache is a result set that is stored on a system to improve response time in future requests. With caching, users can retrieve results from Intelligence Server rather than re-executing queries against a database.

 Intelligence Server supports the following types of caches:
  • Page caches: When a user views a published dossier the Intelligence Server generates one cache per page, so that the cache can be hit when the user switches between pages.

  • Result caches: Report and document results that have already been calculated and processed, that are stored on the Intelligence Server machine so they can be retrieved more quickly than re-executing the request against the data warehouse. Intelligent Cubes can function in a similar fashion to result caches: they allow you to store data from the data warehouse in Intelligence Server memory, rather than in the database. Intelligent Cubes are part of the OLAP Services add-on to Intelligence Server. For detailed information about Intelligent Cubes.

  • The History List is a way of saving report results on a per-user basis. 

  • Element caches: Most-recently used lookup table elements that are stored in memory on the Intelligence Server or Developer machines so they can be retrieved more quickly. 

  • Object caches: Most-recently used metadata objects that are stored in memory on the Intelligence Server and Developer machines so they can be retrieved more quickly. 

You specify settings for all cache types except Page caches and History List under Caching in the Project Configuration Editor. Page cache settings are configured via Application Properties > Dossier Cache Management in MicroStrategy Workstation. History List settings are specified in the Intelligence Server Configuration Editor.
Result, element, and object caches are created and stored for individual projects; they are not shared across projects. History Lists are created and stored for individual users.
To make changes to cache settings, you must have the Administer Caches privilege. In addition, changes to cache settings do not take effect until you stop and restart Intelligence Server.
Labels:

Comments

Post a Comment

Popular posts from this blog

Apply or Pass-through functions in Microstrategy

Ap ply (Pass-Through) functions MSTR Apply functions provide access to functions or syntactic constructs that are not standard in MicroStrategy but are provided by various RDBMS systems.. Syntax common to Apply functions Apply Function Name   ("expression with placeholders", Arg1, Arg2, Arg3, …ArgN) where: Apply Function Name  – is a generic name used for the predefined pass-through functions described above expression with placeholders  – is the string describing the actual expression or syntax that the engine uses while generating the SQL and which is sent to the RDBMS. The placeholders are represented by #0, #1, and so on. "#" is a reserved character for MicroStrategy. Arg  – is an argument that replaces the parameter markers in the pattern. Arg1 replaces #0, Arg2 replaces #1, and so on. There are   five  pre-defined Apply functions to replace regular, predefined functions of the same type. For more details, cli...
6 comments
Read more

Types of filters in Microstrategy

Types of filters in Microstrategy Below are the types of filters: 1. Attribute qualification filter These types of qualifications restrict data related to attributes on the report. a) Attribute form qualification Filters data related to a business attribute’s form(s), such as ID or description. •  For example, the attribute Customer has the forms ID, First Name, Last Name, Address, and Birth Date. An attribute form qualification might filter on the form Last Name, the operator Begins With, and the letter H. The results show a list of customers whose last names start with the letter H. b) Attribute element list qualification Filters data related to a business attribute’s elements, such as New York, Washington, and San Francisco, which are elements of the attribute City. • For example, the attribute Customer has the elements John Smith, Jane Doe, William Hill, and so on. An attribute element list qualification can filter data to display only those customer...
6 comments
Read more

Case functions Microstrategy

Ca se functions Microstrategy Case functions return specified data in a SQL query based on the evaluation of user-defined conditions. In general, a user specifies a list of conditions and corresponding return values. Case This function evaluates multiple expressions until a condition is determined to be true, then returns a corresponding value. If all conditions are false, a default value is returned.  Case  can be used for categorizing data based on multiple conditions. This is a single-value function. Syntax Case ( Condition1 ,  ReturnValue1 ,  Condition2 , ReturnValue2 ,...,  DefaultValue ) Example Case(([Total Revenue] < 300000), 0, ([Total Revenue] < 600000), 1, 2) sum(Case (Day@DESC in (“Sat”,”Sun”), Sales, 0) {~+} Sum(Case(Category@DESC In("Books","Electronics"),Revenue,0)){~+} CaseV (case vector) CaseV  evaluates a single metric and returns different values according to the results. It can be used to perfo...
3 comments
Read more

Prompt-in-prompt(Nested Prompts) in Microstrategy

Prompt-in-prompt(Nested Prompts) in  Microstrategy Nested prompts allows you to create one prompt based on the other and other bases on another, nested prompts allows us to prompt the highest level(Like year) to middle level(like Quarter, then to the low level(like Month). Here you can see how to  create a 3-level deep nested prompt that will prompt the user to select a year, then a quarter within that year, then a month within that quarter. Prompt-in-prompt is a feature in which the answer to one prompt is used to define another prompt. This feature is only implemented for element list prompts . The following procedure describes how to achieve this: Create the highest level filter. This is a filter which contains a prompt on an attribute element list. Create a filter on the attribute "Year." Click "prompt on attribute element list" and click "Next" through the rest of the screens to accept the default values. Do not set any additio...
3 comments
Read more

Purge Web Caches in MicroStrategy Web

Purge Web Caches in MicroStrategy Web By executing the mstr server by embedding the blue text below with admin privileges purges web server cache. https:// mstrserver.com /MicroStrategy/asp/Admin.aspx//mstrWebAdmin/?pg=purgecaches MicroStrategy Web and Web Universal caches various properties that are related to the user, project, or the MicroStrategy Intelligence Server. This helps in reducing the response time for every request by delivering the properties from a closer location than the original MicroStrategy Intelligence Server. In majority of the cases, the default caching properties should be applicable to the business intelligence infrastructure. There are 3 types of caches used in MicroStrategy Web. These are described below: Session Cache - Specific to a user and exists only while the user is logged in. This cache is deleted when the user logs out or if there's no activity for a specified timeout interval. The default value for a timeout is 1200 seco...
Post a Comment
Read more

Microstrategy Dossiers explained

Microstrategy  Dossiers With the release of MicroStrategy 10.9, we’ve taken a leap forward in our dashboarding capabilities by simplifying the user experience, adding storytelling, and collaboration.MSTR has  evolved dashboards to the point that they are more than dashboards - they are  interactive, collaborative analytic stories . Ultimately, it was time to go beyond dashboards, both in concept and in name, and so  the've  renamed VI dashboards to  ‘ dossiers ’.  Dossiers can be created by using the new Desktop product or Workstation or simply from the Web interface which replaces Visual Insights. All the existing visual Insights dashboards will be converted to Dossiers   With MicroStrategy 10.9, there was an active focus on making it easier to build dashboards for the widest audience of end users. To achieve this, some key new capabilities were added that make it easier to author, read, interact and collaborate on dashboards ...
7 comments
Read more

Level metrics in Microstartegy/MSTR

Level Metrics Level metrics allows the users to choose the right combination of level target, filtering, and grouping (referred to as elements) to achieve your desired results.  The elements of a metric level are described below: • Target : The target is the attribute level at which the metric calculation groups. For a more detailed description, see  Target: The context of a calculation . • Grouping : Grouping determines how the metric aggregates. For a more detailed description, see  Grouping: How aggregation is performed . • Filtering : Filtering governs how the report filter interacts with the metric calculation. For a more detailed description, see  Filtering: Interaction with report filters . The level is indicated between the curly braces ({ }) in the metric definition shown below: Sum(Revenue) {~, Product} The tilde (~) represents the report level with standard filtering, denoted by the plus sign (+). If you add item as a level, th...
Post a Comment
Read more

Microstrategy Release Types and Scheduling

Microstrategy Release Types and Scheduling Organizations that use MicroStrategy have asked for a more frequent and predictable platform release schedule—and we listened! We want you to be able to adopt the latest innovations more regularly while having the ability to budget for your long-term upgrade roadmap. Recently announced by CTO Tim Lang in his newsletter, that’s why we’re adopting an annual cadence for future platform releases. This means that our upcoming platform release (v11.1) hits the streets in Q4 2018, followed by another platform release in Q4 2019. PLATFORM RELEASE Interval:  Annually every twelve (12) months in December Who:  Entire customer base What:  Focus on production level security, stability, and performance defect fixes for all customers. Expectation:  Customer has chosen platform path and wants product stability without new enhancements. Support:  Three (3) years, patches for approved P1 defects, an...
1 comment
Read more

Microstrategy "Error type: Odbc error. Odbc operation attempted

 "Error type: Odbc error. Odbc operation attempted: SQLExecDirect. [HYT00:0: on SQLHANDLE] [MicroStrategy][ODBC Oracle Wire Protocol driver]Timeout expired" is shown when executing reports from Web When users are trying to execute some reports in MicroStrategy web in particular, they may receive the Error “SQL Generation Complete Index out of range” and “Timeout expired” error as shown below: Possible Causes: One possible cause is that the MicroStrategy Intelligence Server using a cached database connection that was already dropped by the RDBMS. To resolve this: Admin should delete the database connection caches and create a new DSNs in case they are sharing DSNs to connect to different databases. In addition, change the settings for the ‘Connection lifetime’ and the ‘Connection idle time out’.  Follow the steps below to perform the mentioned changes and verify the report after each step and some of the settings require i-server r...
4 comments
Read more