Udip Pant

Software Engineer @Netflix, working on Proxy, DNS, CDN and load balancers. Previously @Meta, @Amazon, @UWMadison and @BYU.

[Udip Pant @udippant]

@pchaigno @Meta @netflix Thank you @pchaigno!

[Udip Pant @udippant]

After 7 incredible years at @Meta I am delighted to join the Open Connect team @Netflix . Looking forward to the new set of challenges in the DNS / Proxy / CDN space.

[Udip Pant @udippant]

@derek_arg @Meta @netflix Thank you, @derek_arg!

[Udip Pant @udippant]

@jrfernandez @Meta @netflix Thank you @jrfernandez. Looking forward to collaborating with you.

[Udip Pant @udippant]

@nicboul There's a bit of overloading of the term hash here. Hash in this talk generally refers to the function applied to pickup the dest (L7) host (i.e. hash(key) % l7_ring). I think you're referring to hash fn in the LRU map implementation - which it does apply https://t.co/LHMH88bVpc

[Udip Pant @udippant]

Maintaining reliability of very-long lived connections (e.g. live video stream) that can withstand failures across *both* the L4 and L7 layer is quite challenging. My coworkers presented about the work we did to achieve it for both the TCP and QUIC conns https://t.co/DdTl7VQGRh

[Udip Pant @udippant]

@VenkatArun95 Congratulations @VenkatArun95! It is a very well written paper (on top of its technical contributions).

[Udip Pant @udippant]

#GreatlyExceeds!

[WWF Nepal @WWFNepal]

Its Official! Nepal has gone beyond meeting the Global commitment to double Tiger numbers in the wild by going from 121 to 355 in 12 years! WWF Thanks the People, Govt of Nepal & all supporters including Donors for this historic achievement.

#yearofthetiger #roarfortigers

[Udip Pant @udippant]

Executing custom program within the Kernel context - thanks to eBPF. This includes observability in the Kernel as well.
I cannot think of any other area that saw such a big paradigm shift (at least within the Systems world).

[🔎Julia Evans🔍 @b0rk]

what's a programming thing that used to be hard but (within the last 5 years) has become easy?

Like, "before you had to be an expert, now anyone can easily build something useful"

[Udip Pant @udippant]

@get_gianni_up This is very interesting. But I couldn't find the experimental results for Katran (the link to the 'result' page in GH seems broken (or not public?) https://t.co/GmDeowbkx0)

[Udip Pant @udippant]

@kaushalgoa @__subodh You'll probably get better / detailed answers by asking directly in GH - mvfst (QUIC implementation): https://t.co/Lj0V6CvFid or Fizz: https://t.co/biAGDEu484

[Udip Pant @udippant]

@copyconstruct @usama6naseer Thanks @copyconstruct! The feeling is mutual - love your writings covering technical as well as cultural / human aspects of engineering.

[Udip Pant @udippant]

Great list of papers and talks for Systems nerds like me.
Especially since our paper on Zero Downtime Restart / talk by @usama6naseer made it to #5 on this list 😁

[Cindy Sridharan @copyconstruct]

I’m awfully late, but better late than never, eh?

The best of 2020 in tech [talks].

It’s easy to forget, given everything else that was going on in 2020, that there were some truly fantastic research and talks.

Here are my favorites.

https://t.co/8ajHD9oeZ7

[Udip Pant @udippant]

Today in #LPC21 I talked about how we leverage BPF to achieve:
1) Zero Downtime Restart of L7 Proxy with minimal overhead
2) 100% consistent routing of packets from L4LB (Katran) -> L7

#1 builds on top of the work that we shared in last year's SIGCOMM https://t.co/ML0FPlm0E8

[Cindy Sridharan @copyconstruct]

🤯🤯 eBPF’s features and the use cases it supports are mindboggling.

This entire slide deck is worth looking at.

On another note - Linux Plumbers is one of those rare deeply technical conferences with incredible talks and presentations.

[Udip Pant @udippant]

Overheard quote of the day for systems availability - "Forget 5 9's, let's talk about 2 0's"

[Udip Pant @udippant]

@bd Well the place seems to have decent review for being one stop both gardening and Pennsylvanian electoral law litigation services

[Udip Pant @udippant]

Also, here is FB's open source implementation of QUIC: https://t.co/Lj0V6CNg9L

[Udip Pant @udippant]

We finally shared about the work we've been doing for past several years in the development, implementation and deployment of the new transport protocol QUIC / HTTP3. Today more than 75% of the FB traffic is over QUIC / H3.
https://t.co/7uDTDVRabX

[Udip Pant @udippant]

@AishwaryaGanlat Congratulations Aishwarya!