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View cluster and node metrics

  1. ColdFusion User Guide
  2. Introduction to ColdFusion
    1. About Adobe ColdFusion
    2. Download Adobe ColdFusion
    3. What's new in ColdFusion (2023 release)
    4. ColdFusion (2023 release) Release Notes
    5. Deprecated Features
    6. REST enhancements in ColdFusion
    7. Central Configuration Server
    8. Server Auto-Lockdown
    9. Asynchronous programming
    10. Docker images for ColdFusion
    11. SAML in ColdFusion
    12. JSON Web Tokens in ColdFusion
    13. Use SAML and LDAP in Admin
  3. Cloud Services in ColdFusion
    1. ColdFusion and GCP Storage
    2. ColdFusion and GCP Firestore
    3. ColdFusion and GCP PubSub
    4. ColdFusion and Amazon S3
    5. ColdFusion and DynamoDB
    6. ColdFusion and Amazon SQS
    7. ColdFusion and Amazon SNS
    8. ColdFusion and MongoDB
    9. ColdFusion and Azure Blob
    10. ColdFusion and Azure Service Bus
    11. Multi-cloud storage services
    12. Multi-cloud RDS databases
    13. ColdFusion and Azure Cosmos DB
  4. Install ColdFusion
    1. Install the server configuration
    2. Install ColdFusion- Zip Installer
    3. Install ColdFusion- GUI Installer
    4. CFSetup configuration tool
    5. ColdFusion Licensing and Activation
    6. ColdFusion server profiles
    7. Prepare to install ColdFusion
    8. Install the JEE configuration
    9. Install ColdFusion Express
    10. Install integrated technologies
    11. Configure your system
    12. Troubleshoot installation issues
    13. Install ColdFusion silently
    14. Install Adobe ColdFusion (2016 release) hotfix
    15. ColdFusion (2018 release) - Install JEE configuration
  5. Use ColdFusion
    1. GraphQL in ColdFusion
    2. Command Line Interface (CLI)
    3. External session storage
    4. Generate Swagger documents
    5. Language enhancements
    6. NTLM support
    7. Enhanced PDF in ColdFusion
    8. Security enhancements in ColdFusion (2016 release)
  6. Performance Monitoring Toolset
    1. Overview of ColdFusion Performance Monitoring Toolset
    2. Auto-discovery of ColdFusion nodes and clusters
    3. Code profiler in ColdFusion Performance Monitoring Toolset
    4. Configure ColdFusion Performance Monitoring Toolset settings
    5. Install ColdFusion Performance Monitoring Toolset
    6. View cloud metrics
    7. Monitor GraphQL in Performance Monitoring Toolset
    8. Configure TLS/SSL and Authentication for Elasticsearch 8.x  in Performance Monitoring Toolset
    9. View cluster and node metrics
    10. View data source metrics
    11. View external services
    12. View incoming services
    13. View list of sites and busy connections
    14. View topology of sites
    15. Datastore Health Monitoring
    16. Performance Monitoring Toolset Update 1
    17. Secure Performance Monitoring Toolset with HTTPS/SSL
    18. Performance Monitoring Toolset deployment guide
  7. Adobe ColdFusion Builder extension for Visual Studio Code
    1. Getting started with Adobe ColdFusion Builder extension for Visual Studio Code
    2. Add a ColdFusion server
    3. Project Manager
    4. Work with ColdFusion code
    5. Profile preferences
    6. Debug applications
    7. Refactoring
    8. Services Browser
    9. RDS support
    10. PMT Code Profiler integration
    11. Security Analyzer report integration
    12. Known issues in this release
  8. Use ColdFusion Builder
    1. About ColdFusion Builder
    2. System requirements | ColdFusion Builder
    3. Install ColdFusion Builder
    4. Edit code in ColdFusion Builder
    5. Manage servers in ColdFusion Builder
    6. Manage projects in ColdFusion Builder
    7. What's new in Adobe ColdFusion Builder (2018 release)
    8. Frequently Asked Questions (FAQ) | Adobe ColdFusion Builder (2018 release)
    9. Debug applications in ColdFusion Builder
    10. ColdFusion Builder workbench
    11. ColdFusion Builder extensions
    12. Debugging Perspective in ColdFusion Builder
    13. Build mobile applications using ColdFusion Builder
    14. Bundled ColdFusion Server
    15. Debug mobile applications in ColdFusion Builder
    16. Use extensions in ColdFusion Builder
  9. Coldfusion API Manager
    1. Overview of Adobe ColdFusion API Manager
    2. Features in ColdFusion API Manager
    3. Get started with ColdFusion API Manager
    4. Install ColdFusion API Manager
    5. Authentication types
    6. Create and publish APIs
    7. Administrator
    8. Subscriber
    9. Throttling and rate limiting
    10. Notifications
    11. Connectors
    12. Set up cluster support
    13. Integrate ColdFusion and API Manager
    14. Metrics and Logging in API Manager
    15. Generate Swagger documents
    16. Configure SSL
    17. Known issues in this release
    18. Policies in ColdFusion API Manager
    19. Create a Redis cluster
    20. Multitenancy in API Manager
    21. Docker images for ColdFusion API Manager
  10. Configure and administer ColdFusion
    1. Administer ColdFusion
    2. Use the ColdFusion administrator
    3. Data Source Management for ColdFusion
    4. Connect to web servers
    5. Deploy ColdFusion applications
    6. Administer ColdFusion security
    7. Basic Troubleshooting and FAQs
    8. Work with Server Manager
    9. Use multiple server instances
    10. WebSocket Enhancements (ColdFusion 11)
    11. Security Enhancements (ColdFusion 11)
    12. Work with Server Monitor
    13. ColdFusion Administrator API Reference
  11. CFML Reference
    1. Introduction to CFML Reference
      1. New functions in ColdFusion (2018 release)
      2. New and changed functions/tags in Adobe ColdFusion (2016 release)
      3. Script supported tags and functions
      4. New and changed tags/functions in ColdFusion 11
    2. Reserved words and variables
      1. Reserved words and variables
      2. Reserved words
      3. Scope-specific built-in variables
      4. Custom tag variables
      5. ColdFusion tag-specific variables
      6. CGI environment (CGI Scope) variables
    3. ColdFusion tags
      1. ColdFusion tags
      2. Tags in ColdFusion 10
      3. Tag summary
      4. Tags by function
      5. Tag changes since ColdFusion 5
      6. Tags a-b
      7. Tags c
      8. Tags d-e
      9. Tags f
      10. Tags g-h
      11. Tags i
      12. Tags j-l
      13. Tags m-o
      14. Tags p-q
      15. Tags r-s
      16. Tags t
      17. Tags u-z
    4. ColdFusion functions
      1. ColdFusion functions
      2. New functions in ColdFusion 10
      3. ColdFusion functions by category
      4. Function changes since ColdFusion 5
      5. Functions a-b
      6. Functions c-d
      7. Functions e-g
      8. Functions h-im
      9. Functions in-k
      10. Functions l
      11. Functions m-r
      12. Functions s
      13. Functions t-z
      14. BooleanFormat
    5. Ajax JavaScript functions
      1. Ajax JavaScript functions
      2. Function summary Ajax
      3. ColdFusion.Ajax.submitForm
      4. ColdFusion.Autosuggest.getAutosuggestObject
      5. ColdFusion.Layout.enableSourceBind
      6. ColdFusion.MessageBox.getMessageBoxObject
      7. ColdFusion.ProgressBar.getProgressBarObject
      8. ColdFusion.MessageBox.isMessageBoxDefined
      9. JavaScriptFunctionsinColdFusion9Update1
    6. ColdFusion ActionScript functions
      1. ColdFusion ActionScript functions
      2. CF.http
      3. CF.query
    7. ColdFusion mobile functions
      1. ColdFusion Mobile Functions
      2. Accelerometer Functions
      3. Camera Functions
      4. Connection Functions
      5. Contact Functions
      6. Event Functions
      7. File System Functions
      8. Geolocation Functions
      9. Media and Capture Functions
      10. Notification Functions
      11. Splash Screen Functions
      12. Storage Functions
    8. Application.cfc reference
      1. Application.CFC reference
      2. Application variables
      3. Method summary
      4. onAbort
      5. onApplicationEnd
      6. onApplicationStart
      7. onMissingTemplate
      8. onCFCRequest
      9. onError
      10. onRequestEnd
      11. onRequest
      12. onRequestStart
      13. onServerStart
      14. onSessionEnd
      15. onSessionStart
    9. Script functions implemented as CFCs
      1. Script Functions Implemented as CFCs
      2. Accessing the functions
      3. Function summary
      4. ftp
      5. http
      6. mail
      7. pdf
      8. query
      9. Script functions implemented as CFCs in ColdFusion 9 Update 1
      10. storedproc
    10. ColdFusion Flash Form style reference
      1. Styles valid for all controls
      2. Styles for cfform
      3. Styles for cfformgroup with horizontal or vertical type attributes
      4. Styles for box-style cfformgroup elements
      5. Styles for cfformgroup with accordion type attribute
      6. Styles for cfformgroup with tabnavigator type attribute
      7. Styles for cfformitem with hrule or vrule type attributes
      8. Styles for cfinput with radio, checkbox, button, image, or submit type attributes
      9. Styles for cftextarea tag and cfinput with text, password, or hidden type attributes
      10. Styles for cfselect with size attribute value of 1
      11. Styles for cfselect with size attribute value greater than 1
      12. Styles for cfcalendar tag and cfinput with dateField type attribute
      13. Styles for the cfgrid tag
      14. Styles for the cftree tag
      15. ColdFusion Flash Form Style Reference
    11. ColdFusion event gateway reference
      1. ColdFusion Event Gateway reference
      2. addEvent
      3. CFEvent
      4. CFEventclass
      5. Constructor
      6. Gateway development interfaces and classes
      7. getStatus
      8. setCFCPath
      9. setCFCMethod
      10. getOriginatorID
      11. getLogger
      12. getBuddyList
      13. getBuddyInfo
      14. IM gateway message sending commands
      15. IM Gateway GatewayHelper class methods
      16. onIncomingMessage
      17. onIMServerMessage
      18. onBuddyStatus
      19. onAddBuddyResponse
      20. onAddBuddyRequest
      21. IM Gateway CFC incoming message methods
      22. IM gateway methods and commands
      23. CFML CFEvent structure
      24. warn
      25. info
      26. setOriginatorID
      27. data command
      28. submit Multi command
      29. submit command
      30. setGatewayType
      31. setGatewayID
      32. setData
      33. setCFCListeners
      34. outgoingMessage
      35. getStatusTimeStamp
      36. numberOfMessagesReceived
      37. numberOfMessagesSent
      38. removeBuddy
      39. removeDeny
      40. removePermit
      41. setNickName
      42. setPermitMode
      43. setStatus
      44. SMS Gateway CFEvent structure and commands
      45. SMS Gateway incoming message CFEvent structure
      46. getStatusAsString
      47. getProtocolName
      48. getPermitMode
      49. getPermitList
      50. getNickName
      51. getName
      52. getDenyList
      53. getCustomAwayMessage
      54. getQueueSize
      55. getMaxQueueSize
      56. getHelper
      57. getGatewayType
      58. getGatewayServices
      59. getGatewayID_1
      60. getGatewayID
      61. getData
      62. getCFCTimeout
      63. setCFCTimeout
      64. getCFCPath
      65. getCFCMethod
      66. GatewayServices class
      67. Gateway interface
      68. GatewayHelper interface
      69. addPermit
      70. addDeny
      71. addBuddy
      72. error
      73. debug
      74. Logger class
      75. stop
      76. start
      77. CFML event gateway SendGatewayMessage data parameter
      78. restart
      79. fatal
      80. SMS gateway message sending commands
    12. ColdFusion C++ CFX Reference
      1. C++ class overview
      2. Deprecated class methods
      3. CCFXException class
      4. CCFXQuery class
      5. CCFXRequest class
      6. CCFXStringSet class
      7. ColdFusion C++ CFX Reference
    13. ColdFusion Java CFX reference
      1. ColdFusion Java CFX reference
      2. Class libraries overview
      3. Custom tag interface
      4. Query interface
      5. Request interface
      6. Response interface
      7. Debugging classes reference
    14. WDDX JavaScript Objects
      1. WDDX JavaScript objects
      2. JavaScript object overview
      3. WddxRecordset object
      4. WddxSerializer object
  12. Develop ColdFusion applications
    1. Introducing ColdFusion
      1. Introducing ColdFusion
      2. About ColdFusion
      3. About Internet applications and web application servers
      4. About JEE and the ColdFusion architecture
    2. Changes in ColdFusion
      1. Changes in ColdFusion
      2. Replacement of JRun with Tomcat
      3. Security enhancements
      4. ColdFusion WebSocket
      5. Enhanced Java integration
      6. ColdFusion ORM search for indexing and search
      7. Solr enhancements
      8. Scheduler enhancements
      9. Integration with Microsoft Exchange Server 2010
      10. RESTful Web Services in ColdFusion
      11. Lazy loading across client and server in ColdFusion
      12. Web service enhancements
      13. Displaying geolocation
      14. Client-side charting
      15. Caching enhancements
      16. Server update using ColdFusion Administrator
      17. Secure Profile for ColdFusion Administrator
    3. Introduction to application development
      1. Introduction to application development using ColdFusion
      2. Using the Developing ColdFusion Applications guide
      3. About Adobe ColdFusion documentation for Developers
    4. The CFML programming language
      1. The CFML programming language
      2. Elements of CFML
      3. ColdFusion variables
      4. Expressions and number signs
      5. Arrays and structures
      6. Extend ColdFusion pages with CFML scripting
      7. Regular expressions in functions
      8. ColdFusion language enhancements
      9. Built-in functions as first class citizen
      10. Data types- Developing guide
    5. Building blocks of ColdFusion applications
      1. Building blocks of ColdFusion applications
      2. Create ColdFusion elements
      3. Write and call user-defined functions
      4. Build and use ColdFusion Components
      5. Create and use custom CFML tags
      6. Build custom CFXAPI tags
      7. Use the member functions
      8. Object Oriented Programming in ColdFusion
    6. Develop CFML applications
      1. Develop CFML applications
      2. Design and optimize a ColdFusion application
      3. Handle errors
      4. Use persistent data and locking
      5. Use ColdFusion threads
      6. Secure applications
      7. Client-side CFML (for mobile development)
      8. Use the ColdFusion debugger
      9. Debugging and Troubleshooting Applications
      10. Develop globalized applications
      11. REST enhancements in ColdFusion
      12. Authentication through OAuth
      13. Social enhancements
    7. Develop mobile applications
      1. Mobile application development
      2. Build mobile applications
      3. Debug mobile applications
      4. Inspect mobile applications
      5. Package mobile applications
      6. Troubleshoot mobile applications
      7. Device detection
      8. Client-side CFML
      9. Mobile Templates
      10. Code samples to build a mobile application
    8. Access and use data
      1. Access and use data
      2. Introduction to Databases and SQL
      3. Access and retrieve data
      4. Update database
      5. Use Query of Queries
      6. Manage LDAP directories
      7. Solr search support
    9. ColdFusion ORM
      1. ColdFusion ORM
      2. Introducing ColdFusion ORM
      3. ORM architecture
      4. Configure ORM
      5. Define ORM mapping
      6. Work with objects
      7. ORM session management
      8. Transaction and concurrency
      9. Use HQL queries
      10. Autogenerate database schema
      11. Support for multiple data sources for ORM
      12. ColdFusion ORM search
    10. ColdFusion and HTML5
      1. ColdFusion and HTML 5
      2. Use ColdFusion Web Sockets
      3. Media Player enhancements
      4. Client-side charting
      5. Display geolocation data
    11. Flex and AIR integration in ColdFusion
      1. Flex and AIR integration in ColdFusion
      2. Use the Flash Remoting Service
      3. Use Flash Remoting Update
      4. Offline AIR application support
      5. Proxy ActionScript classes for ColdFusion services
      6. Use LiveCycle Data Services ES assembler
      7. Use server-side ActionScript
    12. Request and present information
      1. Request and present information
      2. Retrieve and format data
      3. Build dynamic forms with cfform tags
      4. Validate data
      5. Create forms in Flash
      6. Create skinnable XML forms
      7. Use Ajax data and development features
      8. Use Ajax User Interface components and features
    13. Office file interoperability
      1. Office file interoperability
      2. Using cfdocument
      3. Using cfpresentation
      4. Using cfspreadsheet
      5. Supported Office conversion formats
      6. SharePoint integration
    14. ColdFusion portlets
      1. ColdFusion portlets
      2. Run a ColdFusion portlet on a JBoss portal server
      3. Run a ColdFusion portlet on a WebSphere portal server
      4. Common methods used in portlet.cfc
      5. ColdFusion portlet components
      6. Support for JSR-286
    15. Work with documents, charts, and reports
      1. Work with documents, charts, and reports
      2. Manipulate PDF forms in ColdFusion
      3. Assemble PDF documents
      4. Create and manipulate ColdFusion images
      5. Create charts and graphs
      6. Create reports and documents for printing
      7. Create reports with Report Builder
      8. Create slide presentations
    16. Use web elements and external objects
      1. Use web elements and external objects
      2. Use XML and WDDX
      3. Use web services
      4. Use ColdFusion web services
      5. Integrate JEE and Java elements in CFML applications
      6. Use Microsoft .NET assemblies
      7. Integrate COM and CORBA objects in CFML applications
    17. Use external resources
      1. Send and receive e-mail
      2. Interact with Microsoft Exchange servers
      3. Interact with remote servers
      4. Manage files on the server
      5. Use event gateways
      6. Create custom event gateways
      7. Use the ColdFusion extensions for Eclipse
      8. Use the data services messaging event gateway
      9. Use the data management event gateway
      10. Use the FMS event gateway
      11. Use the instant messaging event gateways
      12. Use the SMS event gateway



The Overview section presents a high-level view of the following metrics:

  • Average Response Time: The amount of time, in milliseconds, the node takes to return the results of a request.
  • Throughput: Number of requests served by the node at a particular time interval. 
  • Success/failure: A pie chart showing the distribution of cfms, which were successful and unsuccessful, that were run from the node.
  • Errors: A stacked graph, which lists the count of the 400 series and 500 series errors that have occurred in the node.
  • Top slow URLs: The execution time (in descending order) of each cfm in the node.
  • System information along with information on ColdFusion and Java versions.
  • History of thread dumps taken: A table displaying the following information of thread dumps taken at node level. The information contains the following:
    • Thread dump ID
    • Total threads
    • Time stamp
    • Actions- Export the dump as a text file.
  • History of heap dumps taken:  A table displaying the following information of heap dumps taken at node level. The information contains the following:
    • Heap dump location
    • Time stamp
Node metrics overview
Node metrics overview

Top slow URLs

When you click on any url, it takes you to a page, where you can see the following sections:

  • Basic info
  • Code flow
  • CF Server: Contains Async Threads, where view the concurrent requests and status of threads that are queued and running.
  • Database
  • External services
  • Cloud services
  • Tags/functions
  • Error/timeout
  • Memory
  • Threads: Contains all the threads that were spawned in the request.

Application monitoring

The Applications tab in the CF Server page performs Application Monitoring by providing the metrics pertaining to all the applications under a cluster or an individual instance.

At a cluster level, the CF Server page provides an overview of the following:

  • Number of instances of the cluster and health percentage.
  • A stacked graph, which lists the count of the 400 series and 500 series errors that have occurred across the cluster.
  • Top slow URLs with an error distribution across the instances that are part of the cluster.
  • ART and throughput graphs for the cluster over time.
Application monitoring
Application monitoring

The Applications page displays the data captured as part of the Application Monitoring. The page has a dropdown from which you can select the applications that you want to monitor and know the details (maximum of five applications).

For the selected applications, you can view the following:

  • The Average Execution Time graph and the health score for each application.
  • The load distribution for the selected applications along with an error graph.

The graph is a stacked area that displays the total count of 400 series and 500 series errors that have occurred in any of these selected applications over a period.

List of applications
List of applications

Application graph
Application graph

Clicking any application from the list of applications redirects to the application detail page, which provides further details about that application, for example,

  • An ART graph.
  • Top slow URLs/Queries.
  • An error graph.
  • A pie-chart for distribution of data source calls and external services calls.
  • A pie chart distribution of  various response codes across the requests made from the selected app.
  • An active session count graph and a pie-chart with a distribution of the requests made across the nodes that are part of the cluster.
Application monitoring details
Application monitoring details

Application monitoring pie charts
Application monitoring pie charts

Monitoring of RunAsync Threads

You can monitor the number of threads that are running in an async operation. Click the cfm running the RunAsync method, and in the CF server tab, expand Async Threads to view the concurrent requests.

There is also a new tab, Threads, which contains all the threads that were spawned in the request.

Active threads
Active threads

CF metrics

To monitor the various ColdFusion related non-request metrics, navigate to CF Server on the left panel. The CF Metrics data is always captured at a node level for a ColdFusion server, which is refreshed after every 15 seconds.

For a node, you can find the tab CF Metrics once you navigate to CF Server.

For a cluster, to view the metrics of the node, click a node that is listed on the CF Server page.

The metrics captured here are controlled by the settings available in CF Admin. The throttle, requests and thread-related controls are present in the pages Server settings and Request tuning. The cache data on the caching page and database-related changes can be made for each individual database under its advanced settings to control its pool size.

The metrics captured are

  • Throttle Data
  • Request Queue Data
  • Sessions Data
  • Data source connection metrics
  • CF thread/Asynch thread metrics
  • Template/Component/Query Cache size

Throttle data

The throttle-related data is captured when the throttle threshold is reached as specified in the CF Admin setting.  On hovering, it shows the following values.

  1. Average throttle queue size: The average value of the requests queued over a period , when there is not enough throttle memory available.
  2. Average throttle memory: The value of the throttle memory used by the requests after being throttled because they have reached the threshold specified in the admin setting.
Throttle data
Request throttle data graph

Request queue

A stacked graph that shows an average value of the requests that have been queued. The types of requests captured here are CFM templates, CFCs, and web services (SOAP services). The final value seen in the graph is the sum of all these three types of requests. This too reflects the data based on the setting in the ‘Request Tuning’ page of CF Admin. Apart from Queued data, it also shows the Running and Timed-Out requests on hovering over the graph.

* The data does not get captured on a Standard edition of ColdFusion.

Request queue size data
Request queue size graph

Template/Component/Query cache size

Template Component/Cache size graph
Template Component/Cache size graph

CFThread/Asynch thread metrics

The graph displays the running and queued counts of the ColdFusion threads that are running. The threads are spawned using the cfthread tag or the equivalent thread functions in ColdFusion. The data too can be controlled with the setting on Request Tuning page.

This graph also shows the number of Asynch threads that were spawned.

CF Threads and Asynch graph
CF Threads and Asynch graph

Datasource connection metrics

A stacked bar graph that displays the connection-related data, for the data sources accessed by various requests, like Maximum connections available, Average open connections and Total connections made for that data source.

Data source connections metrics
Data source connections metrics graph

Session data

In the graph you can view the active and expired session counts over a period of time.

Sessions data graph
Sessions data graph

Bytes metrics

Bytes In/Sec: Bytes incoming per second

  • The number of bytes ColdFusion read in the last second (not an average).

Bytes Out/Sec: Bytes outgoing per second

  • The number of bytes ColdFusion wrote in the last second (not an average).
Byte metrics graph
Byte metrics graph

System metrics

The section provides you all the system-related metrics.

CPU usage

See the consumption percentage of the system and the JVM in a time series graph.

CPU Usage
CPU Usage

Memory usage

You can monitor memory consumption of the server in the Server tab. You can see the system memory consumption and usage of memory of all running processes in the server. The red dashed horizontal denotes the baseline usage.

Memory usage
Memory usage

Network I/O

Check how many packets were sent and received as well as the speed of your network at a particular time.

Network usage
Network usage

Disk I/O

See the disk read and write metrics at any time.

Disk usage
Disk usage

JVM metrics

The Performance Monitoring Toolset provides detailed metric about JVM, which is explained in the section. The following are the metrics that you find in JVM.

  • Heap and non-Heap memory along with distribution
  • GC distribution graph
  • Count of GC
  • Thread and Thread-Pool Metrics
  • Class Loading Metrics

Heap and non-Heap memory along with distribution



The JVM performs memory management and can have a significant effect on your performance depending on how you configure the JVM. The most important settings for the JVM are the initial heap size and maximum heap size. The initial heap size represents the amount of memory that the JVM uses on startup; the maximum heap size represents the amount of memory that the JVM can use. You can modify these settings in the ColdFusion Administrator on the Java and JVM Settings page.

GC distribution

Garbage collection is the process of recycling memory that was assigned to objects that a program no longer references. The chart below displays two types of GC.

  • Minor collection: Garbage collection that occurs in the young generation. In ColdFusion, minor collections  collect unreferenced local scope and variable scope variables.
  • Major collection: Garbage collection that occurs in tenured generation. In ColdFusion, major collections collect all unreferenced session scope variables.
Garbage collection
Garbage collection

There is a histogram of the number of Garbage Collections over time. If you hover on each bar on the graph, you can see the number of GCs for that particular duration.

Count of GC
Count of GC

Thread and Thread Pool metrics

The graphs indicate the number of requests that the server is processing and the number of requests that are awaiting allocation of an application server thread to begin execution.

If the graph indicates that many requests are queued, increase the size of the thread pool. 

In the graph below, Thread Pool gives you an aggregated view of the number of threads that are active.

Thread metrics
Thread metrics

Thread pool metrics
Thread pool metrics

Class Loading Metrics

Shows the number of classes that are loaded or unloaded in a particular duration. For example, if in a UDF, there are ten methods, then ten classes get loaded along with the cfc and the cfm.

Class loading metrics
Class loading metrics

Take thread dumps

For any node in a cluster,you can take thread or heap dumps. Click the button for:

  • Taking thread dump
  • Taking heap dump
  • Triggering GC
Thread dump results
Thread dump results

To view the stack trace of the thread, click any thread state.

Stack trace of thread
Stack trace of thread

Click any thread group to view similar stack trace.

Stack trace of group
Stack trace of group

Heap memory

Heap memory is the runtime data area that the Java VM allocates memory for all class instances and arrays. The heap can be of a fixed or variable size.

  • Eden: The pool from which memory is initially allocated for most objects.
  • Survivor: The pool that contains objects that have survived the garbage collection of the Eden space.
  • Old gen: The pool that contains objects that have stayed for some time in the survivor space.

Non-heap memory

Non-heap memory includes an area shared among all threads and memory required for the internal processing or optimization for the Java VM. It stores meta space, code cache, and compressed cache.

To take a heap snapshot, click Heap Dump and the dump generates successfully.

Any ColdFusion application uses threads to process a request. Large number of concurrent users spawns more threads. When two or more threads use the same resources, a contention between the threads occurs. Thread dump is used to analyze thread contention issues and it provides information on the exact status of each thread and information about the call stack of each thread.

Note: You may sometimes see incorrect data for Heap and Non-Heap charts. For example, if you had set MaxMetaSpaceSize as 192 MB, the Performance Monitoring Toolkit may show the same as 1456 MB.

To take a thread dump, click Thread Dump. You can see the following thread status:

In Performance Monitoring Toolset, you can also trigger GC. The garbage collector manages the allocation and release of memory for your application. Every time you create an object, the runtime allocates memory for the object from the managed heap. If an address space is available in the managed heap, the runtime continues to allocate space for new objects.

When the garbage collector performs a collection, it checks for objects in the managed heap that are no longer being used by the application and performs the necessary operations to reclaim their memory.

To take a Heap Dump, click the button labeled Heap Dump. The heap data gets saved in the location, <ColdFusion_Home/cfusion> in a file admin-1532006781545.hprof.

To trigger Garbage Collection, click GC.


In the section, you can see what caching engine is being used. You can use the following:

  • Ehcache
  • Redis
  • Memcached
  • JCS
  • Custom plugin

You can also see the cache regions of both the application and the server.

If you choose the option, Cache regions of server, you can see the following details:

Cache regions of server
Cache regions of server

If you choose the option Cache regions of applications, you can see the cache stats of the application that you had specified in the file Application.cfc.

Cache regions of application
Cache regions of application

Active monitoring

To monitor currently active requests, queries, and ColdFusion threads, click CF Server on the left panel. For a node, you can find the tab Active Monitoring once you navigate to CF Server.

You can monitor the following options:

  • Async Threads
  • Sessions

For a cluster, click any individual node that you would see listed on the ColdFusion Server page to view its Active Monitoring details.

Active monitoring
Active monitoring

The list displays active requests/CF Threads/Queries and also Async Threads and Sessions.

List of requests
List of requests

Along with the additional details, there are certain actions that can be taken on these active requests and active CF Threads.

For active requests, you can view the Java stack trace of the thread for a particular request to know the state of that request.

From the stack trace, you can also view the time taken and other parameters, for example, a request that is causing a server to execute slowly. For such cases, you can kill the request.

Similarly, you can also kill any active ColdFusion thread.

Java stack trace
Java stack trace


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