Rootconf Pune edition

On security, network engineering and distributed systems


Scaling for 25 million concurrent viewers

Submitted by Gaurav Kamboj (@gauravkamboj) via Zainab Bawa (@zainabbawa) on Wednesday, 21 August 2019

Section: Full talk (40 mins) Category: Others

View proposal in schedule


The talk will focus on why traditional autoscaling doesn’t work for Hotstar (Disney’s OTT streaming service) who recently created a global record for live streaming to 25.3 million concurrent viewers. It will talk about challenges in scaling infrastructure for millions and how to overcome it, how we run gamedays before actual games, how we use load testing monster called Hulk to prepare for peak traffic and also how we add chaos (engineering) in between all these epic scale madness.


About Hotstar
Why traditional autoscaling doesn’t work for Hotstar
Challenges in scaling
Gamedays and load testing for millions
How we prepare for peak traffic (50M)
Chaos engineering at high level

Speaker bio

Gaurav is a Cloud Architect at Hotstar, India’s leading OTT provider that holds a global concurrency record for live streaming to 25Mn+ viewers. At Hotstar, he loves building cost-efficient infrastructure that can scale to millions in minutes. He is also passionate about chaos engineering and cloud security.


  • Anwesha Sarkar (@anweshaalt) Reviewer 14 days ago

    Here is the feedback from today’s rehearsal:

    1. Give the architectural structure of Hulk.
    2. Strat with the story of cricket.
    3. Include pictorial representations of Hulk.
    4. Include a conclusion.
    5. Include take away.
    6. Time: 33minutes, scheduled it for 40minutes.

    Submit your revised slides by 9th Monday.


  • Anwesha Sarkar (@anweshaalt) Reviewer 10 days ago


    The deadline for submitting your revised slides was 9th September. I
    haven’t received an update on your revised slides. Since the
    conference is drawing near, 11th September is the hard stop for your
    revised slides. It is crucial that you submit your revised slides on
    time. There are a lot of steps to be carried out after the submission
    of the revised slides.

    I hope you understand the time crunch. Look forward to your cooperation.


  • Gaurav Kamboj (@gauravkamboj) 9 days ago

    Hi Anwesha,

    Slides are updated. Pls check.

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