CEP Uses: message monitoring Post: 302185764

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Special Forums News, Links, Events and Announcements Complex Event Processing RSS News CEP Uses: message monitoring Post 302185764 by Linux Bot on Tuesday 15th of April 2008 08:50:05 PM

04-15-2008

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CEP Uses: message monitoring

vincent
Tue, 15 Apr 2008 23:34:43 +0000
The recent InfoQ conference in London had some interesting banking sessions on high volume / low latency (implying event processing). These included Merrill Lynch on monitoring messages, and Betfair on their online betting system. One can be pretty sure there is CEP in production in these organizations; Merrill’s talk was about monitoring messages or events, which seems to be a popular CEP application area (for TIBCO CEP in any case).
Scenarios for “message monitoring” include:

I have some high value events occuring that represent control messages for my internal systems. The value of these messages, and the requirement to be aware of any potential problems immediately, means I must monitor them end-to-end to deduce possible failure (events) in a timely manner. This is a classic “sense and respond” application for CEP.
.
I have some high value events representing the arrival of important documents in my (managed) business process. The value of these documents, and the requirement to be aware of any potential problems immediately, means I must monitor them end-to-end in my workflow to ensure that the appropriate service levels are met (from the document managament, as opposed to process management, perspective). This is a classic “situation awareness” application for CEP.
.

In both these cases, we need to monitor the events and use rules (and the state of the entities being monitored) to deduce if all is well or of some complex business event [*1] has occured that requires attention. The CEP engine manages the state and rules and event channels.
Notes:
[1] Talking of business events, there is an ongoing marketing onslaught from IBM promoting “Business Events” for their new CEP acquisition (versus TIBCO BusinessEvents, er, the original-named product). Somehow, this reminds one of the Lord Of The Rings: the searchlight from IBM’s Marketing Tower has swept across the IT plains and stopped at CEP: now the blue hordes are trying to rename CEP for their own (dark?) purposes… .

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cmstopres

cmstopres(1m)															     cmstopres(1m)

NAME

       cmstopres - stops resource monitoring on the local node for an EMS resource that is configured in a Serviceguard package.

SYNOPSIS

       cmstopres [-v] -p package_name resource_name

DESCRIPTION

       cmstopres stops resource monitoring for an EMS resource on the local node.  This resource must be configured in the specified package_name.

       To  stop  a  resource  monitoring  for  an EMS resource in the package, a user must either be superuser(UID=0), or have an access policy of
       FULL_ADMIN allowed in the cluster configuration file. See access policy in cmquerycl(1m) or cmmakepkg(1m).

   Options
       cmstopres supports the following options.

	      -v	Verbose output will be displayed.

	      -p package_name
			The name of the package where the EMS resource is configured in.  This is a required parameter.

	      resource_name
			Name of the EMS resource to stop resource monitoring for.  This resource must be configured in the specified package name.
			This is a required parameter.

RETURN VALUE

       cmstopres returns the following values:

	       0   Successful completion.
	       1   Command failed.

EXAMPLES

       To stop resource monitoring for the EMS resource /net/interfaces/lan/status/lan0 for package pkgA, do the following:

	      cmstopres -p pkgA /net/interfaces/lan/status/lan0

AUTHOR

       cmstopres was developed by HP.

SEE ALSO

       cmstartres(1m), cmquerycl(1m), cmmakepkg(1m),

						      Requires Optional Serviceguard Software					     cmstopres(1m)