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Reference
Find details on the SPL language, toolkits, APIs, commands, and more.
Toolkits
A toolkit is a set of SPL artifacts, which are organized into a package. Toolkits make SPL or native functions and primitive or composite operators reusable across different applications.
Toolkits
Toolkit com.teracloud.streams.teda 4.0.0
Troubleshooting
Application framework
The ITE application does not process any data but is healthy

Welcome
Learn about the core capabilities of Teracloud® Streams, its architecture, and key concepts.
Installing
Use this information to install, upgrade, and uninstall the Teracloud® Streams product.
Configuring
Create a basic or an enterprise domain which is a single point for configuring and managing common resources, security, and instances.
Administering
Administer the product by using the Teracloud® Streams graphical user interface, APIs, or the streamtool command-line interface.
Developing
Develop stream applications with the Streams Processing Language (SPL), Java, and Python.
Troubleshooting
Resolve problems with Teracloud® Streams using the troubleshooting tools provided with the product as well as the resources offered by Teracloud Support.
Reference
Find details on the SPL language, toolkits, APIs, commands, and more.
- APIs
  Application programming interfaces (APIs) provide functions that simplify applications development.
- Job configuration overlays
  You can specify or change configuration parameters when you use the submitjob or updateoperators operations. The settings control submission constraints, host constraints and locations, and operator status. Parameters are captured and updated in the configuration JSON file. When you change the values in the job configuration overlay file, the changes override any previously set values.
- Commands
  Teracloud® Streams provides a number of commands you use to perform tasks.
- Operator model
  An operator model is an XML document that describes the basic properties of a primitive operator.
- Streams Processing Language (SPL)
  Streams Processing Language (SPL) is a distributed data flow composition language that is used in Teracloud® Streams. SPL has primitive types, program structures, and definitions that are tailored for streaming data.
- Toolkits
  A toolkit is a set of SPL artifacts, which are organized into a package. Toolkits make SPL or native functions and primitive or composite operators reusable across different applications.
  - Specialized toolkit requirements and restrictions
    Several of the specialized toolkits require RPMs that are not required by the Teracloud® Streams product. There are also toolkit restrictions on some platforms.
  - Toolkits
- SPLDOC markup
  You can use SPLDOC markup in the descriptions associated with the SPL artifacts in a toolkit. The spl-make-doc command generates HTML documentation from the marked up artifacts.
Glossary
Use this glossary to find terms and definitions for Teracloud® Streams.

The ITE application does not process any data but is healthy

It is normal behavior to pause the file processing if the Lookup Manager application is not initialized or updating the enrichment data in shared memory, or if the ITE application is running internal maintenance tasks.

Please verify the application states and decide which of the following conditions occurred.

The application states are stored in files that are located in the directory being specified in the global.applicationControlDirectory parameter. The application state of the Lookup Manager application is stored in the appl.ctl file, the state of the ITE application is stored in the file that has the ITE namespace as file name.

Causes

If the ITE application that does not process any data, is controlled by a Lookup Manager application, check whether the ITE application state is initial, stopping or stopped. If the ITE application state file contains the initial string, the Lookup Manager application is not yet initialized, so the ITE application waits for a trigger to start the file processing. If the stop or stopped string is encountered, the Lookup Manager application is updating the enrichment data in shared memory. This update is normally running for several minutes, depending on the amount of enrichment data. The update is triggered by a user-provided command.

If the ITE application has checkpointing enabled (ite.businessLogic.group.deduplication.checkpointing or ite.businessLogic.group.custom.checkpointing parameter is turned on) then internal states are refreshed regularly depending on the configured interval (see the ite.cleanup.schedule parameters). Depending on the amount of data that is stored in the ITE group logic, the refresh action can run for several minutes. If the ITE application state is running (run string) and if the ITE application’s contextState metric value is either 1, 3 or 5, then the internal maintenance phase is active. The Control.OutAppCtrl.ApplControl or the Control.AppCtrl.ApplControl operator is the owner of the contextState metric.