IceStorm Administration

The IceStorm administration tool, icestormadmin, is a command-line program that provides administrative control of an IceStorm server.

Configuration properties inform icestormadmin about the topic manager(s) that you wish to administer. You have several configuration options:

• Define IceStormAdmin.Host and IceStormAdmin.Port - icestormadmin constructs its own proxy for the topic manager at the specified host and port
• Define IceStormAdmin.TopicManager.Default - specifies a proxy for the default topic manager on which administrative commands operate
• Define IceStormAdmin.TopicManager.name - specifies the proxies for any number of named topic managers

The tool supports the following command-line options:

$ icestormadmin -h
Usage: icestormadmin [options]
Options:
-h, --help           Show this message.
-v, --version        Display the Ice version.
-e COMMANDS          Execute COMMANDS.
-d, --debug          Print debug messages.

If you specify one or more -e options, the tool executes the given commands and exits, otherwise the tool enters an interactive session. The help command displays the following usage information:

• help
  Print this message.

• exit, quit
  Exit this program.

• create TOPICS
  Add TOPICS.

• destroy TOPICS
  Remove TOPICS.

• link FROM TO [COST]
  Link FROM to TO with the optional COST.

• unlink FROM TO
  Unlink TO from FROM.

• links [INSTANCE-NAME]
  Without an argument, links displays the links of all topics in the current topic manager. You can specify a different topic manager by providing its instance name.

• topics [INSTANCE-NAME]
  Without an argument, topics displays the names of all topics in the current topic manager. You can specify a different topic manager by providing its instance name.

• current [INSTANCE-NAME]
  Set the current topic manager to the topic manager with instance name INSTANCE-NAME. The proxy of the corresponding topic manager must be specified by setting an IceStormAdmin.TopicManager.name property. Without an argument, the command shows the current topic manager.

• replica [INSTANCE-NAME]
  Display replication information for the given INSTANCE-NAME.

• subscribers TOPICS
  Displays the identities of the subscribers for each of the TOPICS. 

Some of the commands accept one or more topic names (TOPICS) as arguments. Topic names containing white space or matching a command keyword must be enclosed in single or double quotes.

By default, icestormadmin uses the topic manager specified by your setting for IceStormAdmin.TopicManager.Default. For example, without additional arguments, the create command operates on that topic manager.

If you are using multiple topic managers, you can specify their proxies by setting IceStormAdmin.TopicManager.name for each topic manager. For example:

IceStormAdmin.TopicManager.A=A/TopicManager:tcp -h x -p 9995
IceStormAdmin.TopicManager.B=Foo/TopicManager:tcp -h x -p 9996
IceStormAdmin.TopicManager.C=Bar/TopicManager:tcp -h z -p 9995

This sets the proxies for three topic managers. Note that name need not match the instance name of the corresponding topic manager — name simply serves as a tag. With these property settings, the icestormadmin commands that accept a topic can now specify a topic manager other than the default topic manager that is configured with IceStormAdmin.TopicManager.Default. For example:

current Foo
create myTopic
create Bar/myOtherTopic

This sets the current topic manager to the one with instance name Foo; the first create command then creates the topic within that topic manager, whereas the second create command uses the topic manager with instance name Bar.

See Also

• Configuring IceStorm
• Highly Available IceStorm
• IceStorm Properties
• IceStormAdmin.*