Firstly, in-memory analysis enables JasperServer to hold the query result data set in memory, complete with sufficient meta-data that enables the user to continue analyzing the data along multi-dimensions, without having to re-issue a new query. And, the user manipulates the results using an enhanced data explorer interface, which is a simple, purely web-based, drag-and-drop environment. So, the outcome is a fast and friendly way to sort, filter, pivot, compare, and drill into data without having to separately design and maintain OLAP cubes or having to use a special front-end tool to interact with those special data sources.
What can be done with Jaspersoft 3.7’s new in-memory analysis? The screen shots below provide an example of a cross-tab report, complete with multiple dimensions being viewed (Locations in the form of States and Cities and Product by Name and Type) and a pie chart that graphs some of the data from this report (sales summary by State). The user can add dimensions and measures just by dragging and dropping and then re-orient or adjust existing dimensions by “pivoting” . This cross-tab report can include summary calculations, calculated fields, sorting and filtering. And, the user can continue clicking on data until he or she reaches the ultimate transaction, should they wish.
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So what does In-Memory Analysis mean for Jaspersoft customers”? Unlike other traditional and in-memory BI vendors, we’re taking the best of both worlds approach whereby the system administrator can configure the server to perform processing either against the in-memory data set, or alternatively, push processing down to the underlying data store. The decision on which approach is optimal for a given deployment will depend a lot on the query performance characteristics of the data store. For example, a traditional OLTP or non-relational data store may benefit significantly from in-memory processing, whereas a query optimized analytic data store may provide performance similar to or better than in-memory processing. Combining this flexible architecture with the cost advantages of not using an OLAP server gives customers choice and a BI platform that can grow as their data and analysis requirements do.
This is just a summary of the many in-memory analysis capabilities we’ve included in Jaspersoft 3.7. I invite you to check out some additional information and a demonstration here.
Next post, I’ll describe our quest to provide rich, Flash-based visualization to make every report, dashboard, and web application come to life.
Brian Gentile
Chief Executive Officer
Jaspersoft