IBM Streams 4.2.1
Tags
Tags are a mechanism for differentiating and identifying
resources that have different physical characteristics or logical uses.
Resources can have any number of tags. Tags are case-sensitive strings with a letter optionally followed by
alphanumeric or underscore characters.
IBM®
Streams defines the following tags:
- application
- Specifies that the resource can run IBM Streams applications.
- audit
- Specifies that the resource can run the logging service.
- authentication
- Specifies that the resource can run the authentication and authorization service.
- jmx
- Specifies that the resource can run the management API service.
- management
- Specifies that the resource can run any of the IBM Streams domain and instance management services.
- sws
- Specifies that the resource can run the web management service.
- view
- Specifies that the resource can run the view service.
Tags can affect dynamic resource selection at instance creation time and when resources are added to an instance.
The IBM Streams scheduler uses tags when it matches resources to the resource pool requirements that are expressed in streams processing applications.
The domain maintains a registry of the tags that are defined in the domain.