Esper issues the first production release of its open-source Esper event-stream processing and event-correlation engine.
The Esper development team has issued the first production release of its open-source Esper event-stream processing and event-correlation engine. It will compete with commercial complex-event processing (CEP) offerings, including StreamBase and Coral8, that also analyze high-volume, low-latency data streams in real time.
Esper will ease development of applications that filter event streams and detect patterns, aggregate data over time- and length-windows, join streams and trigger actions based on the presence or absence of particular events, according to project lead Thomas Bernhardt. A software architect for a financial institution, Bernhardt says the open-source approach helps in "tailoring the event-processing language and other community-driven features" to both broad and specialized needs.
Most of Esper's rapidly growing community is still evaluating how best to exploit the software. Promising applications include real-time monitoring of proprietary options trading, network monitoring and use in RFID research. But Esper does not yet match the performance and capabilities of commercial event-processing engines.
The latest release of StreamBase handles more than 500,000 messages per second and supports up to 30 terabytes of data, according to Bill Hobbib, marketing vice president. Coral8 Version 4 handles comparable data rates with superior event-pattern matching, claims John Morrell, product marketing director. Just as for Esper, key StreamBase and Coral8 selling points include reduction in development time and cost achieved by moving away from custom code. StreamBase offers a graphical interface not available with Esper, while Coral8's preferred interface is its SQL-extending Continuous Computation Language. Both commercial products offer reliability features required by enterprise adopters but not yet available in Esper.
Users benefit from the spectrum of options. "With multiple players in the marketplace, the tide rises for everyone," Hobbib says. --Seth Grimes
The Agile ArchiveWhen it comes to managing data, donít look at backup and archiving systems as burdens and cost centers. A well-designed archive can enhance data protection and restores, ease search and e-discovery efforts, and save money by intelligently moving data from expensive primary storage systems.
2014 Analytics, BI, and Information Management SurveyITís tried for years to simplify data analytics and business intelligence efforts. Have visual analysis tools and Hadoop and NoSQL databases helped? Respondents to our 2014 InformationWeek Analytics, Business Intelligence, and Information Management Survey have a mixed outlook.
InformationWeek Tech Digest August 03, 2015The networking industry agrees that software-defined networking is the way of the future. So where are all the deployments? We take a look at where SDN is being deployed and what's getting in the way of deployments.