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Administering
Administer the product by using the Teracloud® Streams graphical user interface, APIs, or the streamtool command-line interface.
Logs and traces
Teracloud® Streams provides options that enable administrators, instance owners, and application developers to manage log and trace data.

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.
- Domains
  After you create a Teracloud® Streams domain, you can administer it by using the Streams Console graphical user interface and the streamtool command-line interface.
- Resources
  After you add resources to domains and instances, you can administer them by using the Streams Console or the streamtool command-line interface.
- Instances
  To create and manage instances, you can use the Streams Console or the streamtool command-line interface.
- Domain and instance services
  Before you can perform Teracloud® Streams tasks, Teracloud Streams domain and instance services need to be running on resources in the domain. Domain services are started by starting the domain and instance services are started by starting the instance.
- Jobs
  You can start and administer jobs by using Streams Console or the streamtool command-line interface.
- Recovery
  You can back up your Teracloud® Streams system files and directories and then restore them later if necessary. In general, you can recover from application and runtime failures without restoring Teracloud Streams from a backup.
- Streams Console
  You can use the Streams Console to monitor and manage the Teracloud® Streams instances and applications in your domain from any computer that has HTTP connectivity to the server that is running the web management service.
- Logs and traces
  Teracloud® Streams provides options that enable administrators, instance owners, and application developers to manage log and trace data.
- Managing and monitoring Teracloud® Streams using management APIs
  Teracloud® Streams provides two API sets to manage and monitor Streams services and jobs.
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.
Glossary
Use this glossary to find terms and definitions for Teracloud® Streams.

Options for managing log and trace data for Teracloud® Streams

Teracloud® Streams provides options that enable administrators, instance owners, and application developers to manage log and trace data.

The following table lists the main logging and tracing tasks, and the Teracloud® Streams interfaces that you can use to perform the tasks.

Table 1. Summary of log and trace tasks and interfaces for Teracloud® Streams
Task	Teracloud® Streams interface information
Develop applications to use logging and tracing macros	Application developers can use the following mechanisms to create entries in log and trace files: Streams Processing Language (SPL) - Use the appLog and appTrc functions. For more information, see appLog and appTrc. C++ operators - Use the `SPLAPPLOG` and `SPLAPPTRC` macros. For more information about using the `SPLAPPLOG` and `SPLAPPTRC` macros, see Logging and tracing. Java operators - Use either Java or Log4j Loggers. For more information, see the logging or log4j package descriptions.
Customize log and trace settings	Instance owners can use the streamtool command-line interface or the Streams Console to customize log and trace settings. For more information, see Customizing logging and tracing for Teracloud® Streams.
Collect and view log and trace data	Administrators, instance owners, and application developers can use the streamtool command-line interface or the Streams Console to collect and view log and trace data. streamtool - Use the `getlog` command. See the streamtool getlog reference. Streams Console - Management dashboard users can download Domain logs by clicking the Download Domain Logs link in the resource explorer. Instance users can view logs via the Log Viewer page.
Remove log and trace data	Instance owners can use the `streamtool cleanlog` command to remove log and trace data. See the streamtool cleanlog reference.