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CEP as applied to SOA
Post 302211001 by Linux Bot on Wednesday 2nd of July 2008 12:00:03 PM
07-02-2008
CEP as applied to SOA
vincent
Wed, 02 Jul 2008 09:20:11 +0000
Although pundits might debate whether EDA (and thence CEP) is a part of the SOA paradigm (or not), there is no doubt that CEP can be used to make SOA services more useful [*1]. One such area is in managing SOA performance and SLAs (the SOA equivalent of Business Activity Monitoring or BAM), as exemplified by products like TIBCO Service Performance Manager. I was reminded to comment on SPM following an interesting blog by Todd Biske on the merits of taking a lifecycle view of SOA service development (not just “slam dunk” deploy-and-forget) on the TUCON SPM podcast [*2]. TIBCO SPM is, of course, a CEP application built on top of TIBCO BusinessEvents.
Notes
[1] Interestingly, one of the keynotes at TUCON (by Margam Sundararajan from Citigroup) explained how a CEP application was used to help justify the SOA strategy. One of their applications, using TIBCO BusinessEvents, was deployed first in order to get a quick business ROI.
[2] The AllState application discussed in this podcast by*Anthony Abbattista is also a TIBCO BusinessEvents CEP application.
Source...
Wed, 02 Jul 2008 09:20:11 +0000
Although pundits might debate whether EDA (and thence CEP) is a part of the SOA paradigm (or not), there is no doubt that CEP can be used to make SOA services more useful [*1]. One such area is in managing SOA performance and SLAs (the SOA equivalent of Business Activity Monitoring or BAM), as exemplified by products like TIBCO Service Performance Manager. I was reminded to comment on SPM following an interesting blog by Todd Biske on the merits of taking a lifecycle view of SOA service development (not just “slam dunk” deploy-and-forget) on the TUCON SPM podcast [*2]. TIBCO SPM is, of course, a CEP application built on top of TIBCO BusinessEvents.
Notes
[1] Interestingly, one of the keynotes at TUCON (by Margam Sundararajan from Citigroup) explained how a CEP application was used to help justify the SOA strategy. One of their applications, using TIBCO BusinessEvents, was deployed first in order to get a quick business ROI.
[2] The AllState application discussed in this podcast by*Anthony Abbattista is also a TIBCO BusinessEvents CEP application.
Source...
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ldns-notify
ldns-notify(1) General Commands Manual ldns-notify(1) NAME
ldns-notify - notify DNS servers that updates are available SYNOPSIS
ldns-notify [options] -z zone servers DESCRIPTION
ldns-notify sends a NOTIFY message to DNS servers. This tells them that an updated zone is available at the master servers. It can perform TSIG signatures and it can add a SOA serial number of the updated zone. If a server already has that serial number it will disregard the message. OPTIONS
-z zone The zone that is updated. -h Show usage and exit -v Show the version and exit -s serial Append a SOA record indicating the serial number of the updated zone. -p port Use port as destination port (default the DNS port 53) for the UDP packets. -y key:data Use the given TSIG key and base64-data to sign the NOTIFY. Uses the hmac-md5 algorithm. -d Print verbose debug information. The query that is sent and the query that is received. -r num Specify the maximum number of retries before notify gives up trying to send the UDP packet. EXIT CODE
The program exits with a 0 exit code if all servers replied an acknowledgement to the notify message, and a failure exit code otherwise. AUTHOR
Written by the ldns team as an example for ldns usage. REPORTING BUGS
Report bugs to <ldns-team@nlnetlabs.nl>. COPYRIGHT
Copyright (C) 2005 NLnet Labs. This is free software. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PUR- POSE. 9 Jan 2007 ldns-notify(1)