This content originally appeared on DEV Community and was authored by Dinesh G
TOSSConf 2025 – Day 2: Hands-on, Fun-filled & Unforgettable! 
Celebrating Open Source with LibreOffice
Day 2 at TOSSConf 2025 was all about community, creativity, and contribution! It was filled with ultimate fun and hands-on experience because we hosted a stall for LibreOffice, and it turned out to be the most exciting part of the day!
What is Data Engineering
SOURCE - INGESTION - STORAGE - PROCESSING - OUTPUT
Why Start with open Source tools?
Free to learn,build
it’s the foundation of big tech
understand the internals,not just click UI
cloud skills build on open source
you can contribute back
From Monolithic to Distributed
Running all of TOSSCONF – Check-INS,food ,sessions-from one single
TOSSCONF Tasks are split separate teams for registration
MEET THE CORE TEAM
CORE
HDFS – STORAGE
YARN – RESOURCES MANAGER
MAPREDUCE – BATCH PROCESSING ENGINE
BEST USE CASE:
USE HADOOP WHEN YOU NEED TO PROCESS HUGE VOLUMES OF DATA IN BATCHES
And yes! We also enjoyed the beautiful campus and delicious food (an important part of any great conference).
This day reminded me why I love tech and open source. It’s not just for the tools, but for the people and the spirit behind it.
HAPPY CODING!
This content originally appeared on DEV Community and was authored by Dinesh G