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Index Loadbalancing Futurama applications
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 1      About Futurama
 1.1        Version information
 1.2        Getting Started
 1.2.1          Futurama Website
 1.2.1.1            Behavior of Futurama regarding TimeOuts, Login and Logoff
 1.2.1.2            Replacing an existing Futurama Session
 1.2.2          Futurama Webservice
 1.2.2.1            warmUpDocuments
 1.2.3          Futurama Export
 1.3        Overview - Futurama Modules
 1.3.1          Overview - Futurama Accounts
 1.3.2          Overview - Futurama Server
 1.3.3          Overview - Futurama Monitor
 1.3.4          Overview - Futurama Insight
 1.3.5          Overview - Futurama Console
 1.3.6          Overview - Futurama Webservice
 1.4        Loadbalancing Futurama applications
 1.4.1          Getting the most out of Futurama Web using the Load-Balancer
 1.4.2          Application Request Routing
 1.5        Text management and Multi-language
 2      Installation – Configuration – Testing
 2.1        Installation - Futurama Website Edition
 2.1.1          Installation Futurama HTML
 2.1.2          Installation Futurama Monitor
 2.1.3          Installation Futurama Insight
 2.1.4          Installation Futurama Accounts
 2.1.5          Installation SAML2LoadBalancer
 2.2        Installation - Futurama Export Edition
 2.2.1          Installation Futurama Console
 2.2.2          Installation Futurama Server
 2.3        Installation - Futurama Webservice Edition
 2.3.1          Installation Futurama Webservice
 2.4        Installation Futurama Editor
 2.5        Configuration
 2.5.1          Configuration - Cache
 2.5.2          Configuration - Calculation
 2.5.3          Configuration - Debug
 2.5.4          Configuration - File manager
 2.5.5          Configuration - Fileproviders
 2.5.6          Configuration - Format
 2.5.7          Configuration - History
 2.5.8          Configuration - Identity Provider
 2.5.9          Configuration - Log
 2.5.10           Configuration - Mail
 2.5.11           Configuration - Mapping
 2.5.12           Configuration - Monitor
 2.5.13           Configuration - PlugIns
 2.5.14           Configuration - Rendering
 2.5.15           Configuration - ScenarioRecording
 2.5.16           Configuration - Security
 2.5.17           Configuration - Server
 2.5.18           Configuration - Vision
 2.5.19           Configuration - WebAPI
 2.6        Logging
 2.7        Troubleshooting
 2.8        Security - hardening
 3      Updating and file compatibility
 3.1        Updating Futurama - Compatibility behavior
 3.2        Converting Futurama documents
 3.3        12819 - DataTable file updates
 3.4        12889 - DataTable file updates
 3.5        Conversion web.config to .NET Framework 4
 3.6        Deprecated conversion formulas
 4      Futurama Editor - How to
 4.1        At first glance
 4.2        Developing in the Futurama Editor
 4.2.1          Working with objects
 4.2.2          Evaluating objects
 4.2.3          Finding objects
 4.3        Transferring objects
 4.4        Testing objects
 4.5        Validating objects
 4.6        Troubleshooting objects
 4.7        Advanced/special functionality
 4.8        Checking the layout of objects
 5      Futurama - Formulas
 5.1        Futurama Formulas - Date and time
 5.1.1          Date
 5.1.2          Day
 5.1.3          Days360
 5.1.4          Days360Excel
 5.1.5          DaysInMonth
 5.1.6          DaysInPeriod
 5.1.7          Min
 5.1.8          Max
 5.1.9          Month
 5.1.10           Now
 5.1.11           WeekDay
 5.1.12           Year
 5.2        Futurama Formulas - Math
 5.2.1          Abs
 5.2.2          Add
 5.2.3          Divide
 5.2.4          Floor
 5.2.5          Ln
 5.2.6          Log
 5.2.7          Log10
 5.2.8          Mod
 5.2.9          Multiply
 5.2.10           Pi
 5.2.11           Power
 5.2.12           Rand
 5.2.13           Round
 5.2.14           RoundDown
 5.2.15           RoundUp
 5.2.16           SquareRoot
 5.2.17           Subtract
 5.3        Futurama Formulas - Statistical
 5.3.1          AverageDeviation
 5.3.2          Beta
 5.3.3          Binomial
 5.3.4          Covariance
 5.3.5          Factorial
 5.3.6          Gamma
 5.3.7          GeometricMean
 5.3.8          Lognormal
 5.3.9          Max
 5.3.10           Median
 5.3.11           Min
 5.3.12           Normal
 5.3.13           StandardDeviation
 5.3.14           Uniform
 5.3.15           Variance
 5.4        Futurama Formulas - Text
 5.4.1          CalculateBase64Hashcode
 5.4.2          CalculateXmlHashcode
 5.4.3          Concatenate
 5.4.4          ConcatenateBase64
 5.4.5          ContainsText
 5.4.6          Convert.CSV.2.XML
 5.4.7          ConvertFromBase64
 5.4.8          ConvertToBase64
 5.4.9          ConvertXml
 5.4.10           DecodeURL
 5.4.11           DecryptXml
 5.4.12           EncodeURL
 5.4.13           EncryptXml
 5.4.14           Find
 5.4.15           HashBase64EncodedFile
 5.4.16           HashBase64EncodedFileWithBase64
 5.4.17           HashText
 5.4.18           HashTextWithBase64
 5.4.19           Left
 5.4.20           Len
 5.4.21           Linefeed
 5.4.22           Lower
 5.4.23           Mid
 5.4.24           Proper
 5.4.25           ReadConfigKey
 5.4.26           ReadDirectoryNames
 5.4.27           ReadFile
 5.4.28           ReadFileAsBase64
 5.4.29           ReadFileNames
 5.4.30           ReadFileWithEncoding
 5.4.31           ReadXPathScalar
 5.4.32           ReadXPathVector
 5.4.33           Repeat
 5.4.34           Right
 5.4.35           Substitute
 5.4.36           Trim
 5.4.37           TrimLeft
 5.4.38           TrimRight
 5.4.39           Upper
 5.4.40           ValidatePattern
 5.4.41           XsdMessages
 5.5        Futurama Formulas - Logical
 5.5.1          And
 5.5.2          IsEmpty
 5.5.3          If
 5.5.4          IsEqual
 5.5.5          IsEven
 5.5.6          IsGreater
 5.5.7          IsGreaterEqual
 5.5.8          IsIBANChecksumValid
 5.5.9          IsLess
 5.5.10           IsLessEqual
 5.5.11           IsMemberOfGroup
 5.5.12           IsNotEqual
 5.5.13           IsOdd
 5.5.14           IsValidXml
 5.5.15           Not
 5.5.16           Or
 5.5.17           ValidateNPR
 5.6        Futurama Formulas - Table
 5.6.1          FindNextRow
 5.6.2          FindPreviousRow
 5.6.3          FindRow
 5.6.4          Sort
 5.6.5          VLookUp
 5.7        Futurama Formulas - Document
 5.7.1          CountErrors
 5.7.2          GetPathToDataFiles
 5.7.3          GetPortNumber
 5.7.4          GetRelativePathToDataFiles
 5.7.5          GetSessionID
 5.7.6          IsLicenceAvailable
 5.7.7          ReadError
 5.7.8          ReadIdentityProviderResult
 5.7.9          ReadRequestIP
 5.7.10           ReadRequestParameter
 5.7.11           ReadUserAgent
 5.7.12           ReadVersionNumber
 5.7.13           SessionTimeOut
 5.7.14           URL
 5.7.15           UserName
 5.8        Futurama Formulas - Conversion
 5.8.1          Convert.Excel.to.XML
 5.8.2          ConvertJSONtoXml
 5.8.3          ConvertTextToDate
 5.8.4          ConvertTextToNumber
 5.8.5          ConvertToBoolean
 5.8.6          ConvertToDouble
 5.8.7          ConvertToLong
 5.8.8          ConvertToString
 5.8.9          FormatDate
 5.8.10           FormatNumber
 5.8.11           Value
 5.9        Futurama Formulas - Matrix
 5.9.1          AddMatrices
 5.9.2          AddScalarToMatrix
 5.9.3          Cumulative
 5.9.4          CumulativeProductMatrix
 5.9.5          Distinct
 5.9.6          DivideMatrices
 5.9.7          DivideMatrixScalar
 5.9.8          DivideScalarMatrix
 5.9.9          Exponent
 5.9.10           First
 5.9.11           Floor
 5.9.12           If
 5.9.13           Index
 5.9.14           Inverse
 5.9.15           IsEqual
 5.9.16           IsGreater
 5.9.17           IsGreaterEqual
 5.9.18           IsNotEqual
 5.9.19           IsLess
 5.9.20           IsLessEqual
 5.9.21           Join
 5.9.22           Last
 5.9.23           Length
 5.9.24           MatrixProduct
 5.9.25           Max
 5.9.26           MaxScalarMatrix
 5.9.27           Mean
 5.9.28           Mid
 5.9.29           Min
 5.9.30           MinScalarMatrix
 5.9.31           MultiplyMatrices
 5.9.32           MultiplyMatrixVector
 5.9.33           MultiplyScalarMatrix
 5.9.34           Percentile
 5.9.35           PowerMatrix
 5.9.36           PowerMatrixScalar
 5.9.37           PowerScalarMatrix
 5.9.38           ReadMatrixFromXml
 5.9.39           Repeat
 5.9.40           Replace
 5.9.41           Reshape
 5.9.42           ReverseCumulativeProductMatrix
 5.9.43           ReverseMatrix
 5.9.44           Size
 5.9.45           Split
 5.9.46           SquareRootMatrix
 5.9.47           Step
 5.9.48           SubtractMatrices
 5.9.49           SubtractMatrixScalar
 5.9.50           SubtractScalarMatrix
 5.9.51           Sum
 5.9.52           Transpose
 5.9.53           UnitMatrix
 5.9.54           Vector
 5.10         Creating custom formulas in Futurama
 6      Futurama - Objects
 6.1        Action
 6.2        Aggregation
 6.3        Button
 6.4        ChangeValue
 6.5        CheckBox
 6.6        ClearCache
 6.7        DatabaseField
 6.8        DatabaseView
 6.9        DataTable
 6.10         DateBox
 6.11         DocConverter
 6.12         Document
 6.13         Download
 6.14         DropDownList
 6.15         EmailConverter
 6.16         ExcelConverter
 6.17         FileSaver
 6.18         FileUploader
 6.19         Fixed
 6.20         Formula
 6.21         GraphConverter
 6.22         HTMLInclude
 6.23         InterfacesNode
 6.24         LogMessage
 6.25         Navigator
 6.26         Node
 6.27         RadioButton
 6.28         RadioGroup
 6.29         Range
 6.30         Reference
 6.31         SubDocument
 6.32         TextBox
 6.33         UserTable
 6.34         UserVariable
 6.35         WebLabel
 6.36         WebListBox
 6.37         WebPage
 6.38         WebPanel
 6.39         WebReference
 6.39.1           WebReference - WCF Configuration
 6.40         WebService
 6.41         WebSlider
 6.42         WordConverter
 6.43         XmlBuilder
 6.44         XmlConverter
 6.45         XmlField
 6.46         XmlNode
 7      Futurama - Vision References
 7.1        Data
 7.1.1          ReadData
 7.1.2          WriteMessage
 7.1.3          GetPersonIdentifiers
 7.1.4          CreatePerson
 7.2        DataStore
 7.2.1          DeleteDataItem
 7.2.2          DeleteDataItemHierarchy
 7.2.3          DeleteDataItems
 7.2.4          GetDataItem
 7.2.5          GetDataItemHierarchy
 7.2.6          GetDataItems
 7.2.7          StoreData
 7.3        Accounts
 7.3.1          Activate Account
 7.3.2          Change Account
 7.3.3          Create Account
 7.3.4          GetQuestion
 7.3.5          GetQuestions
 7.3.6          Login
 7.3.7          ReadData
 7.3.8          ReinitializeAccount
 7.4        General
 7.4.1          TestConnection
 8      Futurama Vision
 8.1        Installation Futurama Vision
 8.1.1          Installation Futurama Vision Management Site
 8.1.2          Installation or Upgrade of the Futurama Vision Database
 8.2        Futurama Vision Management Site
 8.2.1          Futurama Vision Management Site - Admin
 8.2.2          Futurama Vision Management Site – Security
 8.2.3          Futurama Vision Management Site – Skinning
 8.2.4          Importing data into Futurama Vision
 8.2.4.1            Importing data by webservice
 8.2.4.2            Importing data from a Zip-file
 8.2.4.3            Importing data with Futurama Vision Batch
 8.2.4.4            Futurama Vision Webservice Security
 8.2.5          Further processing of data into Futurama Vision
 8.3        Futurama Vision File manager
 8.4        Activity overview
 8.5        Storing data in Vision from a Futurama application
 8.6        Futurama Vision – Data
 8.7        Futurama Accounts - Management Site
 8.7.1          Futurama Accounts - Table in Vision Database
 8.8        Futurama Server - Management Site
 8.8.1          Special Futurama Server Jobs
 8.9        Futurama Register - Management Site
 8.9.1          Configuration - Futurama Register
 8.10         Retrieving AppEvents from Futurama Vision
 8.11         Adding CustomPages to Vision
 9      Futurama Intermediate Control Output (FICO)
 9.1        FICO example - Change/Add HTML headers
 9.2        FICO example - Change Graph
 9.3        HTML5 Template
 10       Futurama Web API
 10.1         Postbacks of Futurama webcontrols
 10.2         Retrieving Resources using Web API
 10.3         WebAPI Session management
 11       Tutorials - Overview
 11.1         Tutorials - Examples and Downloads
 11.2         Beginners
 11.2.1           Creating formulas with Futurama
 11.2.1.1             Exercise 1: Pythagorean Theorem (Easy)
 11.2.1.2             Exercise 2: Newspaper stall (Medium)
 11.2.1.3             Exercise 3: Recursive functions (Difficult)
 11.2.1.4             Exercise 4: Leap Year (Difficult)
 11.2.1.5             Exercise 5: The Guessing Game I (Medium)
 11.2.2           Creating a Website Application
 11.2.2.1             Exercise 1: Creating a Website (Easy)
 11.2.3           Styling your website with CSS
 11.2.3.1             Exercise 1: Adding CSS (Easy)
 11.2.4           Adding interactivity to your website
 11.2.4.1             Exercise 1: Summation (Easy)
 11.2.4.2             Exercise 2: The Guessing Game II (Medium)
 11.2.4.3             Exercise 3: Nationality (Medium)
 11.2.4.4             Exercise 4: Nationality - RepeatTarget (Medium)
 11.2.4.5             Exercise 5: Reversed Guessing (Difficult)
 11.2.5           Working with Tables
 11.2.5.1             Exercise 1: Average (Easy)
 11.2.5.2             Exercise 2: Boundary values (Difficult)
 11.2.5.3             Exercise 3: Standard Deviation (Medium)
 11.2.6           Reading and processing XML-data in Futurama
 11.2.6.1             Exercise 1: Shares (Medium)
 11.2.7           Adding Graphs in Futurama
 11.2.7.1             Exercise 1: World Population (Easy)
 11.2.8           Working with Actions in Futurama
 11.2.8.1             Exercise 1: Changing Colors (Easy)
 11.2.8.2             Exercise 2: On and Off (Medium)
 11.2.8.3             Exercise 3: The ChangeValue object (Difficult)
 11.2.8.4             Exercise 4: The Guessing Game III (Medium)
 11.2.8.5             Exercise 5: CheckBox (Medium)
 11.2.9           Multiple Pages and Navigation
 11.2.10            Using XSLT to display data
 11.2.10.1              Exercise 1: Overview Summation (Easy)
 11.2.10.2              Exercise 2: Persons (Medium)
 11.2.10.3              Exercise 3: Leap Year Overview (Difficult)
 11.2.11            Webservices in Futurama
 11.2.11.1              Exercise 1: Example (Easy)
 11.2.12            Creating a Webservice Application
 11.2.12.1              Exercise 1: Add (Easy)
 11.2.12.2              Exercise 2: Webservice Nationality (Medium)
 11.2.13            Creating a Console Application
 11.2.13.1              Exercise 1: Adding extra fields (Easy)
 11.2.14            Generating Documents
 11.2.14.1              Exercise 1: Tax Rate (Medium)
 11.2.14.2              Exercise 2: Tax Rates Table (Difficult)
 11.3         Advanced
 11.3.1           Responsive Design
 11.3.1.1             Exercise 1: Orientation
 11.3.1.2             Exercise 2: Target different screen sizes
 11.4         Older Tutorials (Futurama Version 3.2)
 11.4.1           Futurama Editor Tutorial 1: The first sum
 11.4.2           Futurama Editor Tutorial 2: An annuity
 11.4.3           Futurama Editor Tutorial 3: Working with tables
 11.4.4           Futurama Editor Tutorial 4: Modelling a DB pension plan
 11.4.5           Futurama Editor Tutorial 5: Working with XML
 11.4.6           Futurama Web Tutorial 1: Hello world
 11.4.7           Futurama Web Tutorial 2: Buttons and Actions
 11.4.8           Futurama Web Tutorial 3: Textboxes
 11.4.9           Futurama Web Tutorial 4: DropdownLists
 12       Miscellaneous
 12.1         Responsive website
 12.2         Reducing memory usage for XmlNodes and XmlFields
 12.3         Explaining caching for websites and webservices
 12.4         Certificates - basic information
 12.5         Performance XML operations
 12.6         Creating XSD files and using them in combination with Futurama
 13       Templates
 14       Safe2Save WebAPI Sample
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Loadbalancing Futurama applications

Developer
System-administrator
Futurama-Webservice
Futurama-Website

User: Developer

Prerequisites

- not applicable

Introduction

Loadbalancing Futurama Website or Futurama Webservice applications

Description

Depending on the expected number of users of your Futurama Website or Futurama Webservice application it can be necessary to loadbalance the service requests. At this page more information is given regarding loadbalancing Futurama applications.

Within Futurama an internal loadbalancer is available for Futurama Website and Webservice. The following chapters describe using these. If these methods are not within your possibilities, we still offer a legacy method of loadbalancing your applications, shown further below.

Webservice internal load balancing (Futurama 18.02+)

Futurama Webservice can provide simplified loadbalancing without changing IIS settings, which means it is capable of handling concurrent calls by various users in parallel. This will increase memory and processor usage, but will improve request-throughput and latency in high-load situations.

All that is required for the new load balancing functionality is setting a the numProcessors field in the configuration as shown here, and all webservice requests will be handled in parallel by the desired number of processors.

Website internal load balancing (Futurama 18.08+)

Futurama Web can also provide simplified loadbalancing without changing IIS settings, which means it is capable of handling concurrent calls by various users in parallel. This will increase memory and processor usage, but will improve request-throughput and latency in high-load situations.

All that is required for the new load balancing functionality is setting a the numProcessors field in the configuration as shown here, and all webrequests will be handled in parallel by the desired number of processors. See this page for detailed information about using the Futurama loadbalancer for your webapplication.

Configuring IIS to facilitate Load balancing for Futurama (Legacy)

CPU use Futurama applications

In IIS it is possible to configure that server requests for an application are handled by multiple CPU’s. However, in the Futurama context this is not possible. During a Futurama session all the requests within that session must be handled by the same CPU. So without loadbalancing it is not possible to use multiple CPU’s to scale the requests. More specific: every Futurama installation must be using the same CPU. 

Behaviour Futurama requests

Requests to a Futurama application are synchronous. That means that a new request is handled at the moment that the previous request is finished. Suppose you have two Futurama applications. Application 1 is a Futurama Website application and application 2 is a Futurama Webservice application. The Futurama Website applications does at some pages requests to the Futurama Webservice application in order to retrieve data to be used in the Futurama Website application. In this situation it is important to loadbalance both the Futurama Website application and the Futurama Webservice application. To clarify this suppose that only the Futurama Webservice is loadbalanced. Due that requests to Futurama are synchronous an incoming request to Futurama Website will be handled as soon as the previous is finished. So after a request to application 1 is received a free CPU will be used to deal with the request from application 1 to application 2. The next request to application 1 will be handled not earlier then the moment request from application 1 to application 2 is finished. So loadbalancing only application 2 does not make sense when application 1 is not also loadbalanced.

Application Request Routing

Application Request Routing (ARR) is a feature in the IIS (Internet Information Services) Manager that can be used for load balancing of server requests and increase scalability of web applications. ARR can also be applied on web applications made with Futurama. See the support page Application Request Routing for detailed information how to use ARR to loadbalance for example a Futurama web application.

Related Topics

- Getting the most out of Futurama Web using the loadbalancer: Detailed information of the Futurama loadbalancer for web applications

- Application Request Routing: The IIS module that can be used to load balance server requests

Feedback

If you have any questions about this subject or if you want to provide us feedback please send us an e-mail.

Updated: 2018-09-26


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