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Developing
Learn about different Teracloud Streams tools and features to write, compile, run, and test streams applications.
Debugging stream applications
Debug stream applications using the interactive, command line-based Streams Debugger (sdb).
Compiling an application for debugging
To compile a stream application for debugging with the Streams Debugger (sdb), you must specify the -g option on the sc command.

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
Learn about different Teracloud Streams tools and features to write, compile, run, and test streams applications.
- Development concepts
  Development of stream applications consists of several components such as operators, streams, tuples, Streams Processing Language, toolkits, and more.
- Developing stream applications
  Try out tutorials and explore details about stream application development, SPL features, and best practices.
- Developing native functions
  Extend SPL's computational capabilities by creating native functions written in C++ or Java.
- Developing custom operators
  Create custom operators if shipped toolkits do not provide the necessary logic or behavior needed for your stream applications.
- Developing custom toolkits
  Bundle and reuse custom functions and operators across several stream applications by creating custom toolkits.
- Working with files
  Applications and operators can read and write to files in several ways. If relative paths are used, the data directory is used as the root of relative paths. To enable logic to access the runtime application or toolkit directory hierarchies, language-specific functions can be used.
- Enabling Streams data exchange
  Teracloud® Streams provides a data exchange REST API for inserting and retrieving tuples within a job to easily integrate with other data services and external applications. Stream applications can enable the data exchange feature by using one or more Endpoint operators.
- Debugging stream applications
  Debug stream applications using the interactive, command line-based Streams Debugger (sdb).
  - Samples used for illustration
    The WordCount sample is used to illustrate the debugger features.
  - Compiling an application for debugging
    To compile a stream application for debugging with the Streams Debugger (sdb), you must specify the -g option on the sc command.
  - Debugging an application in stand-alone mode
    The SPL compiler generates a stand-alone executable program that can be run without a Teracloud® Streams instance.
  - Debugging an application in distributed mode
    A stream application is debugged in a job that is submitted to a running Teracloud® Streams instance.
  - Debugging with the Streams Debugger
    When the application is started either in stand-alone mode or distributed mode, the Streams Debugger displays initial messages and presents a command line.
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.
Glossary
Use this glossary to find terms and definitions for Teracloud® Streams.

Compiling an application for debugging

To compile a stream application for debugging with the Streams Debugger (sdb), you must specify the -g option on the sc command.

Specifying the -g option when compiling instruments the application for use with the Streams Debugger and enables debugging of all operators.

See the following example:

sc -g -M sample::WordCount