Using the CORBA Notification Service

 

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ntsadmin

Synopsis

BEA Tuxedo CORBA Notification Service administration command interpreter.

Syntax

ntsadmin

Description

The Notification Service includes an administration command interpreter, ntsadmin, that provides commands to perform the following tasks for CORBA Notification Service applications:

• List subscriptions
• Delete subscriptions
• Display summary information about structured events on the pending and error queues
• Delete structured events on the pending and error queues
• Move structured events from the error queue to the pending queue

Note: When you enter ntsadmin to start the program, if your application only has transient subscriptions, the commands for persistent subscriptions are disabled.

Note: The Notification Service must be running before you can use ntsadmin.

You can exit the ntsadmin program by entering a q (for quit) at the command prompt. You can terminate the output from a command by pressing the Break key; the program then prompts for a new command.

Output from ntsadmin is paginated according to the pagination command in use (see the paginate command).

Note: The subscription command has different output depending on the setting of the verbose command.

Security

This utility can only be used by the system administrator.

See Also

TMNTS, TMNTSFWD_T, TMNTSFWD_P, qmadmin

ntsadmin Commands

Commands may be entered either by their full name or by an abbreviation (if available, the abbreviation is listed below in parentheses following the full name), followed by appropriate arguments. Arguments that appear in square brackets [] are optional; arguments in curly braces {} indicate a selection from mutually exclusive options. Each command offers the following options:

 

The ntsadmin commands are as follows:

subscriptions (sub) [{-i identifier |-n name |-t | -p}]

Lists subscriptions in the subscription database.

Note: The subscription command has different output depending on whether the verbose mode is on or off (the verbose command is described below). Listing 7-11 shows examples of subscription output with verbose on and off.

Listing 7-11 Subscription Command Output with Verbose Mode On and Off

> verbose on
Verbose mode is now on

> sub
          ID: 1000000006
        Name: marcello
         QoS: Transient
      Qspace: <N/A>
  Expression: stock trade\.quote
      Filter: stock_name %% 'BEAS' && price_per_share > 150

          ID: 1000000005
        Name: marcello
         QoS: Persistent
      Qspace: TMNTSQS
  Expression: stock trade\.sell
      Filter:

          ID: 1000000004
        Name: marcello
         QoS: Persistent
      Qspace: TMNTSQS
  Expression: stock trade\.buy
      Filter:

> verbose off
Verbose mode is now off

> sub
ID          Name                 Expression
--          ----                 ----------
1000000006  marcello         [T] stock trade\.quote
1000000005  marcello         [P] stock trade\.sell
1000000004  marcello         [P] stock trade\.buy

rmsubscriptions (rmsub) [{-i identifier |-n name |-t | -p]}[-y]

Removes subscriptions from the subscription database. This command prompts for confirmation unless -y is used.

This command displays the number of subscriptions removed.

pendevents (pevt) [{-i identifier |-n name}]

Lists information about events in the pending events queue.

rmpendevents (rmpevt) [{-i identifier |-n name |-o}][-y]

Removes events in the pending events queue. If -o is specified, all events that do not currently have a corresponding subscription in the subscription database will be removed.

This command prompts for confirmation unless -y is used and displays the number of events removed.

errevents (eevt) [{-i identifier |-n name}]

Lists events in the events error queue.

rmerrevents (rmeevt) [{-i identifier |-n name |-o}][-y]

Removes events in the events error queue. If -o is specified, all events that do not currently have a corresponding subscription in the subscription database will be removed.

This command prompts for confirmation unless -y is used and displays the number of events removed.

retryerrevents (reteevt) [{-i identifier |-n name}][-y]

Retries the events in the events error queue. This will move the events from the error queue to the pending queue.

This command prompts for confirmation unless -y is used and displays the number of events moved from the error queue to the pending queue.

quit (q)

Terminates the session.

echo (e) [{off |on}]

Echoes input command lines when set to on. If no input is given, then the current setting is toggled and the new setting is printed. The initial setting is off.

help (h) [{command |all}]

Prints help messages. If command is specified, the abbreviation, arguments and description for that command are printed. all causes a description of the commands to be displayed. Omitting all arguments causes the syntax of all commands to be displayed.

paginate (page) [{off |on}]

Paginates output. If no input is given, the current setting is toggled and the new setting is printed. The initial setting is on, unless either standard input or standard output is a non-terminal device. Pagination may only be turned on when both standard input and standard output are terminal devices. The shell environment variable PAGER may be used to override the default command used for paging output. The default paging command is the pager indigenous to the native operating system environment; for example, the command pg is the default on UNIX operating systems.

verbose (v) [{on | off }]

Produces output in verbose mode. If no option is given then the current setting will be toggled, and the setting is printed. The initial setting is off.

! shellcommand

Use this command to escape to shell and execute shellcommand.

!!

Use this command to repeat the previous shell command.

#[text]

Use this command to designate the line as a comment.

<CR>

Use this command to repeat the previous command.

Using the ntsadmin Utility

This section provides examples of using the ntsadmin utility.

Listing 7-12 shows an example of using ntsadmin to move events from the error queue back to the pending queue. The following steps are performed:

Look up all subscriptions for marcello.
Use the unique subscription_id to display information about events on the error queue.
Move the events from the error queue to the pending queue.

Listing 7-12 Moving Events from the Error Queue to the Pending Queue

D:\smith\reg>ntsadmin
ntsadmin - Copyright (c) 1996-1999 BEA Systems, Inc.
Portions * Copyright 1986-1997 RSA Data Security, Inc.
All Rights Reserved.
Distributed under license by BEA Systems, Inc.
BEA Tuxedo is a registered trademark.
INFO: /Q Qspace - TMNTSQS
INFO: /Q Device - D:\smith\reg\QUE (SITE1)

> subscriptions -n marcello
ID          Name                 Expression
--          ----                 ----------
1000000002  marcello         [T] stock trade\.quote
1000000001  marcello         [P] stock trade\.sell
1000000000  marcello         [P] stock trade\.buy

> verbose off
Verbose mode is now off

> eevt -i 1000000003
ID          Name             Count
--          ----             -----
1000000003  marcello         1
> reteevt -i 1000000003 -y
1 event(s) retried

Listing 7-13 shows an example of using ntsadmin to remove subscriptions and purge events.

Listing 7-13 Removing a Subscription

> rmsub -n BillJones -y
2 subscription(s) removed
> rmeevt -n marcello -y
1 event(s) removed
> rmpevt -n BillJones -y
No events removed

Listing 7-14 shows how to check events pending for a specific subscription.

Listing 7-14 Checking for Pending Events

> pevt -n marcello
ID          Name             Count
--          ----             -----
1000000003  marcello         1

 

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Notification Servers

This section provides descriptions of the following servers:

• TMTNS
• TMNTSFWD_T
• TMNTSFWD_P

The Notification Service also uses the following BEA Tuxedo system servers. For descriptions of these servers, refer to the File Formats, Data Descriptions, MIBs, and System Processes Reference.

• TMSYSEVT(5)
• TMUSREVT(5)
• TMQFORWARD(5)
• TMQUEUE(5)

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