Codetown ::: a software developer's community
Time: May 26, 2011 from 6pm to 9pm
Location: DeVry Room 120
Street: 4000 Millennia Blvd room 120
City/Town: Orlando, FL
Website or Map: http://www.orlandojug.org
Phone: Skype ::: mlevin77
Event Type: meeting
Organized By: Michael Levin
Latest Activity: May 26, 2011
This month, Zemian Deng will give a talk about the Quartz Scheduler
Orlando JUG Quartz Presentation (1.5 hours)
- Introduction (5 mins)
* Quartz's features
* Quartz 1.8 vs Quartz 2.0
- Scheduling Jobs (20 mins)
* Schedule one time job
* Schedule repeatable job
* Schedule cron job
- How job is stored and executed (15 mins)
* InMemory job
* Persistent job
- Scheduler Deployment (20 mins)
* Running single in-memory sheduler with configurable jobs in xml
* Running server/client scheduler using RMI
* Running Spring based scheduler in a Web container.
- Tips and gotchas when working with quartz API (5 mins)
* Working with java Date and Calendar
* Quartz's Cron Expression
* What you need to know about quartz remoting and RMI
* What you need to know about Spring's SchedulerFactoryBean
- QA session (25 mins)
Stay tuned for more details!
DIRECTIONS TO
ORLANDO CAMPUS OF DeVRY UNIVERSITY
4000 Millenia Boulevard
Orlando, FL 32839
407 355 3131
Take I-4 east to Conroy Road – Exit 78. Turn right off the exit onto Conroy Road. At the next light turn left onto Millenia Blvd. The campus will be on your right. There is visitor’s parking at the front of the building. Use the center front entrance.
Take I-4 west to Conroy Road – Exit 78. Turn left off the exit onto Conroy Road. (You will cross back over I-4.) Take Conroy Road to Millenia Blvd. and turn left. The campus will be on your right. There is visitor’s parking at the front of the building. Use the center front entrance.
Take the Beeline Expressway (528 toll) west to I-4. Take I-4 east to Conroy Road – Exit 78. Turn right off the exit onto Conroy Road. Take Conroy Road to Millenia Blvd. and turn left. The campus will be on your right. There is visitor’s parking at the front of the building. Use the center front entrance.
Comment
Hi all,
I apologize that I have cancelled the talk at the last minute due to a family emergency. I have talked to Mike Levin and requested a reschedule of the scheduler talk with a next availble meeting date. I hope to you see then.
Sincerely,
Zemian Deng
Mike,
I think you meant to say "Next Month", because the date is April 28. We are in March right now. :)
-- Zemian
Codetown is a social network. It's got blogs, forums, groups, personal pages and more! You might think of Codetown as a funky camper van with lots of compartments for your stuff and a great multimedia system, too! Best of all, Codetown has room for all of your friends.
Created by Michael Levin Dec 18, 2008 at 6:56pm. Last updated by Michael Levin May 4, 2018.
Check out the Codetown Jobs group.

Airbnb has redesigned its identity system to support privacy-first social features in Experiences. The platform introduces context-specific profiles that separate global user identity from externally visible profiles, preventing cross-context linkage. The migration leveraged automated auditing, manual validation, and AI-assisted refactoring to enforce correct identity usage across services.
By Leela Kumili
JEP 533, Structured Concurrency, has reached integrated status for JDK 27. It refines exception handling and type safety in its API, particularly focusing on exception flow with a new ExecutionException type. Changes include an updated Joiner interface and a new open overload for easier configuration. The steady evolution signals ongoing development as feedback shapes the API.
By A N M Bazlur Rahman
Paulo Arruda discusses Shopify’s evolution in AI adoption, moving from simple chat tools to a sophisticated swarm of specialized agents. He explains the transition from massive "all-in-one" prompts to lean, narrow-focused agent microservices that slash task times from hours to minutes. He also shares a future-looking hypothesis on using filesystem-based adapters to solve context bloat.
By Paulo Arruda
Backlogs in distributed systems are arithmetic problems, not mysteries. This article provides practical formulas for calculating backlog drain time, sizing consumer headroom, and setting auto-scaling triggers. It covers key failure modes — retry amplification, metastable states, and cascading pipeline bottlenecks — plus when to shed load instead of draining.
By Rajesh Kumar Pandey
Grafana Labs has launched Pyroscope 2.0, a rearchitected open-source continuous profiling database. This version improves storage costs, query performance, and operational complexity. Key changes include single write paths for profiles, stateless query processing, and enhanced capabilities for profiling data. It supports the OpenTelemetry Protocol, aligning with current trends in observability.
By Matt Saunders
© 2026 Created by Michael Levin.
Powered by
RSVP for OrlandoJUG - The Quartz Scheduler to add comments!
Join Codetown