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No bottlenecks in Complex Event Processing for Real-time BI
Post 302226447 by Linux Bot on Tuesday 19th of August 2008 04:40:03 AM
08-19-2008
No bottlenecks in Complex Event Processing for Real-time BI
vincent
08-18-2008 04:54 PM
A few BI-related posts show how CEP and CEP-related thinking is starting to trickle into conventional thinking on Business Intelligence.
First off, Intelligent Enterprise reports on some solutions to the problems of using data warehouses for real-time BI. Note that the solutions offered include Event Stream Processing (although why Forrester references ESP instead of CEP is a mystery only known to the analyst who authored this report - unless there is an expectation that just simple streamed correlations can be done in real-time analytics?) [*1].
Secondly,* Jerry Held relates in 2 articles how cloud computing will “save the day” for BI. In a nutshell, Jerry’s hypothesis is that a lack of cheap distributed computing resources are what is holding back BI, and clouds of massively parallel operations on huge datasets will be BI’s saviours. Jerry, methinks, is ahead of his time, as I can’t see data warehouses migrating to the clouds without large doses of security provisions and even cheaper bandwidth. But certainly the idea of highly parallel and scalable event+data processing operations is here today…
Notes:
[1] IE also suggests “informational fabric” for real-time BI. This is “the real-time in memory, distributed caching infrastructure embedded in a service-oriented architecture or enterprise service bus for analytic and transactional apps.” This is also CEP-relevant - the TIBCO BusinessEvents CEP platform includes such a data grid.
Source...
08-18-2008 04:54 PM
A few BI-related posts show how CEP and CEP-related thinking is starting to trickle into conventional thinking on Business Intelligence.
First off, Intelligent Enterprise reports on some solutions to the problems of using data warehouses for real-time BI. Note that the solutions offered include Event Stream Processing (although why Forrester references ESP instead of CEP is a mystery only known to the analyst who authored this report - unless there is an expectation that just simple streamed correlations can be done in real-time analytics?) [*1].
Secondly,* Jerry Held relates in 2 articles how cloud computing will “save the day” for BI. In a nutshell, Jerry’s hypothesis is that a lack of cheap distributed computing resources are what is holding back BI, and clouds of massively parallel operations on huge datasets will be BI’s saviours. Jerry, methinks, is ahead of his time, as I can’t see data warehouses migrating to the clouds without large doses of security provisions and even cheaper bandwidth. But certainly the idea of highly parallel and scalable event+data processing operations is here today…
Notes:
[1] IE also suggests “informational fabric” for real-time BI. This is “the real-time in memory, distributed caching infrastructure embedded in a service-oriented architecture or enterprise service bus for analytic and transactional apps.” This is also CEP-relevant - the TIBCO BusinessEvents CEP platform includes such a data grid.
Source...
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gstreamer::event
GStreamer::Event(3pm) User Contributed Perl Documentation GStreamer::Event(3pm) NAME
GStreamer::Event - Structure describing events that are passed up and down a pipeline DESCRIPTION
The various event types are represented as subclasses: GStreamer::Event::FlushStart GStreamer::Event::FlushStop GStreamer::Event::EOS GStreamer::Event::NewSegment GStreamer::Event::Tag GStreamer::Event::BufferSize GStreamer::Event::QOS GStreamer::Event::Seek GStreamer::Event::Navigation GStreamer::Event::Custom::UP GStreamer::Event::Custom::DS GStreamer::Event::Custom::DS::OOB GStreamer::Event::Custom::Both GStreamer::Event::Custom::Both::OOB To create a new event, you call the constructor of the corresponding class. To check if an event is of a certain type, use the type method: if ($event -> type eq "newsegment") { # ... } elsif ($event -> type eq "eos") { # ... } To get to the content of an event, call the corresponding accessor: if ($event -> type eq "newsegment") { my $update = $event -> update; my $rate = $event -> rate; my $format = $event -> format; my $start_value = $event -> start_value; my $stop_value = $event -> stop_value; my $stream_time = $event -> stream_time; # ... } elsif ($event -> type eq "tag") { my $tag = $event -> tag; # ... } METHODS
structure = $event->get_structure eventtype = $event->type ENUMS AND FLAGS
enum GStreamer::EventType o 'unknown' / 'GST_EVENT_UNKNOWN' o 'flush-start' / 'GST_EVENT_FLUSH_START' o 'flush-stop' / 'GST_EVENT_FLUSH_STOP' o 'eos' / 'GST_EVENT_EOS' o 'newsegment' / 'GST_EVENT_NEWSEGMENT' o 'tag' / 'GST_EVENT_TAG' o 'buffersize' / 'GST_EVENT_BUFFERSIZE' o 'sink-message' / 'GST_EVENT_SINK_MESSAGE' o 'qos' / 'GST_EVENT_QOS' o 'seek' / 'GST_EVENT_SEEK' o 'navigation' / 'GST_EVENT_NAVIGATION' o 'latency' / 'GST_EVENT_LATENCY' o 'step' / 'GST_EVENT_STEP' o 'custom-upstream' / 'GST_EVENT_CUSTOM_UPSTREAM' o 'custom-downstream' / 'GST_EVENT_CUSTOM_DOWNSTREAM' o 'custom-downstream-oob' / 'GST_EVENT_CUSTOM_DOWNSTREAM_OOB' o 'custom-both' / 'GST_EVENT_CUSTOM_BOTH' o 'custom-both-oob' / 'GST_EVENT_CUSTOM_BOTH_OOB' SEE ALSO
GStreamer COPYRIGHT
Copyright (C) 2005-2011 by the gtk2-perl team. This software is licensed under the LGPL. See GStreamer for a full notice. perl v5.14.2 2012-03-01 GStreamer::Event(3pm)