Greenplum and SitePen Bring Real-time Visualization to the Web

By on November 7, 2006 11:32 pm

Companies collaborate to contribute first in-browser real-time charting capability

SAN FRANCISCO, Web 2.0 Conference, Nov. 7, 2006– Greenplum, the leader in the use of open source databases for enterprise-class business intelligence (BI) and data warehousing, and SitePen, Inc., a web-development company known for its work with cutting-edge technologies like AJAX (Asynchronous JavaScript and XML), today announced a joint contribution to the Dojo open source project. The contribution enables any web developer to bring real time charting to web applications using AJAX.

Previously, browser-rendered charts were incapable of depicting up-to-date information. With the new capability, organizations can chart online statistics to track events as they happen. For example, an online auction site could offer their users dynamic charts that track bids for one or more auctions in real-time; and polling and survey websites could show voting results as votes are tallied.all without requiring users to download or install code, or “refresh” their web page when they want an updated chart.

The first application of the technology is Greenplum Monitor, a browser-based database monitoring application to be released later this year. Greenplum Monitor will provide a continuously updated visual representation of the status and activity of Greenplum databases and their underlying system resources. Using real-time charts, Greenplum Monitor allows database and systems administrators to track critically important statistics such as cluster and machine status; table size and skew; and CPU, disk, memory, and network utilization.

“Greenplum’s application of the real-time charting, Greenplum Monitor, is a great example of what can be achieved when combining the power of native browser vector graphics, the Dojo Toolkit, and AJAX,” says Dylan Schiemann, CEO of SitePen, Inc., and co-founder of the Dojo Toolkit. “The company’s generous donation of the source code rapidly accelerates the development process in creating real-time charting and visualization for the web.”

“Greenplum’s customers receive real value from the visual display of up-to-date data, but nobody wants to download a fat client application to get that capability. When designing a monitoring application for our database products, we wanted to give our customers the best of both worlds,” said Luke Lonergan, CTO of Greenplum. “The Dojo framework provided the perfect toolkit and community for developing the code required to make this happen. We’re excited to work with the AJAX experts at SitePen to develop and contribute the underlying technology to the open source community so that other web developers can leverage it to build more interesting and useful web applications.”

The Real-time Visualization engine is available as part of the Dojo Toolkit from, and is open source, completely free of charge, and liberally licensed under the BSD and AFL licenses.

Greenplum Monitor will be available later this year via the Bizgres Network, at

About Greenplum

Headquartered in San Mateo, California, Greenplum is the leading provider of high-performance PostgreSQL for business intelligence. Greenplum’s Bizgres family of breakthrough database products is poised to revolutionize the way enterprises use BI to gain key competitive advantages in the marketplace, from departmental data marts to multi-terabyte data warehouses. The company sponsors The Bizgres Project (, a community effort designed to make PostgreSQL the most robust open source database for data warehousing and BI. For more information about Greenplum, visit To download Greenplum software, visit

About SitePen
Based in Palo Alto, California, SitePen focuses on building applications that push the limits of the web. Its superstar team works consistently to define the user experience while developing clean, functional applications for companies throughout the consumer, enterprise, and open source spaces. Online at

About Dojo

Dojo is the open source JavaScript Toolkit that makes professional web development better, easier, and faster. With hundreds of contributors to date, Dojo is one of the fastest growing toolkits on the web. Online at