Feb 20 Meeting: Liferay Sync

Date: Monday, Feb 20

Time: 7pm - 9pm
Place: Idealab in Pasadena (RSVP for more details)

Please RSVP on the Meetup site so we can get headcount for food and drinks to be provided by UberMedia.

http://meetup.com/pasadenajug


Gail Hernandez will describe the development of Liferay Sync, an open source package that provides file synchronization capabilities similar to Dropbox.com.

Rough Agenda:

7:00pm - 7:15pm Start to Eat & Mingle
7:15pm - 7:25pm Introductions
7:25pm - 7:30pm Identify those with open positions (please no announcements from contingency recruiters)
7:35pm - 7:37pm Speaker & Talk Introduction
7:37pm+ The Talk!

Liferay Sync works with the web based Liferay Document Library to provide desktop access to files stored in the Document Library.  The concept is simple enough.  Keep the files and folders that are in the web-based folder in sync with the files on the users’ local desktop.  Like many things, the devil is in the details.  Many design constraints further clouded the issue.  We wanted a lightweight application that could run on any OS, no heavy weight database and fast performance. Most of all we want no data loss. The solution was a Java engine, with a Java based UI, connected with C++ based shell extensions for complete integration into the environment. This presentation will discuss the hurdles faced, the design decisions and tradeoffs that had to be made, as well as plans and goals for the future.

Gail Hernandez is a Senior Software Engineer at Liferay, Inc. She joined the company in March 2011, after working in the defense industry for the past decade. There, she developed an eclectic collection of experience. She has worked on diverse projects including C3I systems for unmanned aircraft, Open Road Tolling systems, mobile command center systems for first responders, and GPS systems. Gail holds a B.S. in Computer Science from Cal Poly Pomona and a M.S. in Software Engineering from Cal State Fullerton.

Nov 28 Meeting: Eclipse DemoCamp

Eclipse 10th Birthday DemoCamp

Date: Monday, Nov 28
Time: 7pm - 9pm
Place: Idealab in Pasadena (RSVP for more details)

Please RSVP on the Meetup site so we can get headcount for food and drinks to be provided by Idealab. There will also be cake, kindly provided by the Eclipse Foundation.

http://meetup.com/pasadenajug

This month is Eclipse's 10th birthday, which is being celebrated across the globe with DemoCamp events.

We will be joining that celebration with our own DemoCamp event. Ian Skerrett from the Eclipse Foundation will be joining us, and there will be multiple short sessions covering different aspects of the Eclipse ecosystem. Here's a sample:

Ian Skerrett - Orion (tools for the web, on the web)
David Mittman - Operating Robots with Eclipse @ NASA
Khawaja Shams - Cloud Computing Software development with OSGi

We still have slots open, so send email to democamp@jpl.nasa.gov if you might be interested in showing off cool stuff that you built or enjoy using.

If you'll be out of town, find an Eclipse DemoCamp near you: http://wiki.eclipse.org/Eclipse_DemoCamps_November_2011

The Eclipse wiki page for our event is here: http://wiki.eclipse.org/Eclipse_DemoCamps_November_2011/Los_Angeles

Hadoop and the Lunar Mapping and Modeling Project

The Pasadena JUG is back from hiatus, hosted by Idealab.

Please RSVP on the new Meetup site so we can get a headcount for food and drink:
http://www.meetup.com/pasadenajug/events/34481832/

When: Monday, Oct 3, 2011 at 7pm
Location: 130 W Union St, Pasadena, CA 91103
Directions: http://www.idealab.com/contact_us/our_location.html

7:00pm - 7:15pm Start to Eat & Mingle
7:15pm - 7:25pm Introductions
7:25pm - 7:30pm Identify those with open positions (no contingency recruiters)
7:35pm - 7:37pm Speaker & Talk Introduction
7:37pm+ The Talk!

Here is a synopsis of the talk that George Chang will be giving:

The Lunar Mapping and Modeling Project (LMMP) is tasked to aggregate lunar data, from the Apollo era to the latest instruments on the LRO spacecraft, into a central repository accessible by scientists and the general public. A critical function of this task is to provide users with the best solution for browsing the vast amounts of imagery available. The image files LMMP manages range from a few gigabytes to hundreds of gigabytes in size with new data arriving every day. Despite this ever-increasing amount of data, LMMP must make the data readily available in a timely manner for users to view and analyze. This is accomplished by tiling large images into smaller images using Hadoop, a distributed computing software platform implementation of the MapReduce framework, running on a small cluster of machines locally. Additionally, the software is implemented to use Amazon's Elastic Compute Cloud (EC2) facility. We also developed a hybrid solution to serve images to users by leveraging cloud storage using Amazon's Simple Storage Service (S3) for public data while keeping private information on our own data servers. By using Cloud Computing, we improve upon our local solution by reducing the need to manage our own hardware and computing infrastructure, thereby reducing costs. Further, by using a hybrid of local and cloud storage, we are able to provide data to our users more efficiently and securely. This talk examines the use of a distributed approach with Hadoop to tile images, an approach that provides significant improvements in image processing time, from hours to minutes. This talk describes the constraints imposed on the solution and the resulting techniques developed for the hybrid solution of a customized Hadoop infrastructure over local and cloud resources in managing this ever-growing data set. It examines the performance trade-offs of using the more plentiful resources of the cloud, such as those provided by S3, against the bandwidth limitations such use encounters with remote resources. We will outline some of the technologies employed, the reasons for their selection, the resulting performance metrics and the direction the project is headed based upon the demonstrated capabilities thus far.

We're Back

We will be meeting at Idealab in Old Town. Stay tuned for further details.

On Hiatus

We will not be holding meeting until we find a new meeting space.

Java on Mars

Jesse Wright will be talking on his work with Java at JPL.
Jesse Wright is a Software Architect specializing in the software for Mars missions. This includes the software on the spacecraft and the software on the ground. I have 33 years of experience in supporting JPL missions and commercial work. I've used Java for well over 10 years. Right now I am learning Rails, with a possible conversion to JRuby later on.
This is also our last Meeting at EHarmony as they are moving and the Group will go "virtual" until a new Place is found.

The Pasadena JUG has met on the last monday of the month from 7 - 8:30 pm at the eHarmony offices in Pasadena, 888 East Walnut Street (SW corner of Lake and Walnut).

Directions

From the 210 freeway: take the Lake Ave exit south.
From Colorado Blvd: take Hudson Ave north, go a block past the Target, and turn right onto Walnut St.

There are two parking lot entrances once you're in the middle of the property. Use the one on the right. Parking is free but validation is required, so bring your parking stub.

To get to the meeting, walk north and turn left onto Walnut Street. There should be a "PJUG" sign taped to the door.

Map

Ashish Gupta will be talking on the Django framework:
Django is a web framework in Python language. Presentation will be more focused on interesting design and coding aspects of Django framework and not on Python at all.

Directions

From the 210 freeway: take the Lake Ave exit south.
From Colorado Blvd: take Hudson Ave north, go a block past the Target, and turn right onto Walnut St.

There are two parking lot entrances once you're in the middle of the property. Use the one on the right. Parking is free but validation is required, so bring your parking stub.

To get to the meeting, walk north and turn left onto Walnut Street. There should be a "PJUG" sign taped to the door.

Map