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Configuring
Create a basic or an enterprise domain which is a single point for configuring and managing common resources, security, and instances.
Setting up a basic domain on a single resource
A basic domain has a single Teracloud® Streams resource and user. This type of domain is typically used for test or development environments.
Changing the port number for embedded ZooKeeper
Use this procedure to change the port number that Teracloud® Streams uses for embedded ZooKeeper. If the port number you specify is not available, embedded ZooKeeper finds an available port when it starts.

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.
- Setting up a basic domain on a single resource
  A basic domain has a single Teracloud® Streams resource and user. This type of domain is typically used for test or development environments.
  - Creating a basic domain and instance
    You can create a basic domain and instance by using the Teracloud® Streams graphical user interfaces or the streamtool command-line interface.
  - Changing the port number for embedded ZooKeeper
    Use this procedure to change the port number that Teracloud® Streams uses for embedded ZooKeeper. If the port number you specify is not available, embedded ZooKeeper finds an available port when it starts.
- Setting up an enterprise domain on multiple resources
  An enterprise domain can have multiple resources and users. This type of domain is typically used for production environments. You can configure high availability to ensure that Teracloud® Streams can continue to run even if resources fail or are not available.
- Configuring security
  Each Teracloud® Streams domain and instance maintains its own security configuration.
- Configuring audit logging
  Teracloud® Streams supports comprehensive, multiple-level auditing of product and user operations. By default, audit logging is not enabled.
- Configuring transport mechanisms
  Teracloud® Streams supports several high-performance and configurable transport mechanisms for communicating across processing elements (PEs). You can configure the transport mechanism by updating Teracloud Streams properties.
- Configuring a checkpoint data store
  Use this procedure to configure a checkpoint data store for Teracloud® Streams domains 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.
Glossary
Use this glossary to find terms and definitions for Teracloud® Streams.

Changing the port number for embedded ZooKeeper

Use this procedure to change the port number that Teracloud® Streams uses for embedded ZooKeeper. If the port number you specify is not available, embedded ZooKeeper finds an available port when it starts.

Before you begin

Stop the domain by entering the following command:

  streamtool stopdomain -d domain-id --embeddedzk

Procedure

To display the embedded ZooKeeper property settings, enter the following command:

  streamtool getbootproperty --all

The streams.zookeeper.property.clientPort property value is the embedded ZooKeeper port number, as shown in the following example:

streams.zkmonitor.checkIntervalMs=50000
streams.zkmonitor.connTimeoutMs=5000
streams.zkmonitor.port=21820
streams.zookeeper.jvmFlags=
streams.zookeeper.logDir=/home/myuser/.streams/var/embeddedzk
streams.zookeeper.property.autopurge.purgeInterval=1
streams.zookeeper.property.autopurge.snapRetainCount=3
streams.zookeeper.property.clientPort=21810
streams.zookeeper.property.dataDir=/home/myuser/.streams/var/embeddedzk/datadir
streams.zookeeper.property.initLimit=10
streams.zookeeper.property.maxClientCnxns=0
streams.zookeeper.property.maxSessionTimeout=180000
streams.zookeeper.property.minSessionTimeout=-1
streams.zookeeper.property.syncLimit=5
streams.zookeeper.property.tickTime=3000
streams.zookeeper.quorum=myhost.com
streams.zookeeper.rootLogger=INFO,CONSOLE,ROLLINGFILE

To change the port number, use the streamtool setbootproperty command.
For example, to change the port number to 21811, enter the following command:
```
  streamtool setbootproperty streams.zookeeper.property.clientPort=21811
```
Note: Do not use a delimiter, such as a comma, when you specify the port number. For example, specifying 21,811 results in an error.

Start the domain by entering the following command:

  streamtool startdomain -d domain-id --embeddedzk