Dev Tyagi

Inventing @Temple | ex - Software Engineer at @zomato @AppSecure @Amazon @TartanHQ

[Dev Tyagi @devptyagi01]

Last week, I faced an interesting problem at work. I received a critical warning from AWS regarding our PostgreSQL RDS cluster, it was approaching transaction ID wraparound, something that can cause a full database outage if not handled in time.⁣
⁣
This was a good reminder of how important it is to understand the internals of the systems we rely on every day.⁣
⁣
For those unfamiliar, PostgreSQL uses a 32-bit transaction counter (XID) that wraps around after ~2.1 billion transactions. If old rows aren’t vacuumed and frozen in time, PostgreSQL can no longer determine which rows are visible, forcing it to stop accepting new writes to prevent data corruption.⁣
⁣
In our case, it turned out that autovacuum wasn’t keeping up due to high write throughput and a few misconfigured thresholds.⁣
⁣
What helped:⁣
⁣
👉🏻 Identifying large tables with unvacuumed rows.⁣
👉🏻 Manually running 𝖵𝖠𝖢𝖴𝖴𝖬.⁣
👉🏻 Tuning autovacuum workers settings and vacuum cost limits.⁣
⁣
It’s one of those things that often goes unnoticed until it becomes urgent. If you're running PostgreSQL on RDS (or self-managed), keep an eye on 𝖺𝗀𝖾(𝖽𝖺𝗍𝖿𝗋𝗈𝗓𝖾𝗇𝗑𝗂𝖽) and ensure autovacuum is running efficiently.⁣
⁣
Invisible debt in infrastructure has a way of surfacing at the worst possible time. This one got our attention early, worth sharing in case it helps others avoid a painful surprise.

[Telegram Messenger @telegram]

Over 300,000 people die of drowning each year. In order to protect society, it is now illegal to consume or possess water.

Your government is also considering banning solid food, as it presents a needless choking hazard.
You are not an adult.
You are a baby.
Eat the baby food.

[Deepinder Goyal @deepigoyal]

Just crossed 100k applications for the 100 introductory Temple devices.

To the 100 who get one: you're the founding cohort. We'll be grateful for what you teach us.

To the rest: we're building as fast as we can without compromising what @temple needs to be.

Follow @temple for updates.

[Deepinder Goyal @deepigoyal]

Hello world. The first 100 Temples are ready to ship. We're now inviting athletes, scientists, founders, doctors, creators, and individuals who care deeply about their physical and cognitive health to be the founding users of Temple.

Apply for early access at https://t.co/XxGR9Hpq58

[Deepinder Goyal @deepigoyal]

Heart Rate is just one of the simpler things. Temple sees more.

Follow @temple for more updates.

[Dev Tyagi @devptyagi01]

@arpit_bhayani https://t.co/OvLS92V8J8

Happening with everyone I think

[Dev Tyagi @devptyagi01]

@arpit_bhayani Yo! Congratulations and all the best 🚀✨

[Dev Tyagi @devptyagi01]

@amolik_vivian Waah shampy waah

[Dev Tyagi @devptyagi01]

We're hiring 🚀

[Deepinder Goyal @deepigoyal]

We're recruiting at @temple.

At Temple, we are building the ultimate wearable for elite performance athletes. A device that measures what no other wearable in the world measures, with a level of precision that doesn't exist yet.

To build it, we need people who are obsessive about both the craft and the category. Engineers who are also athletes. People who will wear what they build, and hate it until it's perfect.

Roles we're hiring for:

🟠 Analog Systems Engineers, Electronics Design Engineers
🟠 Embedded Systems Engineers — low-level HW bring-up, embedded signal and image processing, embedded AI
🟠 Design and Validation Engineers — sensors, actuators, battery, antenna, optics
🟠 CMF Engineers, Adhesive Materials Engineers
🟠 Sensor Algorithms Engineers — estimation theory, sensor fusion
🟠 Deep Learning Engineers — ML model development for physiological metrics
🟠 Computational Neuroscientists
🟠 BCI Engineers — real-time EEG/EMG acquisition and processing
🟠 Neural Decoding Researchers — brain activity to semantic mapping
🟠 Computer Vision Engineers — facial microexpression, subvocal muscle detection
🟠 Neuroimaging ML Engineers — multimodal sensor fusion
🟠 Last but not the least, product managers who work through Figma without needing a designer to hold their hand

Important – we are building for people who push their bodies to the edge. We want to be those people, not just serve them. So only people who take fitness seriously, and have body fat <16% (men) and 26% (women) should apply. If you're not there yet but will commit to getting there in three months, you can apply too; but you'll be on probation until you are.

Write to [email protected] with your core skill as the subject line.

Come find your tribe.

[Dev Tyagi @devptyagi01]

@arpit_bhayani I learned about it the hard way - faced it in production and all writes had stopped 🫡

https://t.co/NM3px0j0qn

[Dev Tyagi @devptyagi01]

Last week, I faced an interesting problem at work. I received a critical warning from AWS regarding our PostgreSQL RDS cluster, it was approaching transaction ID wraparound, something that can cause a full database outage if not handled in time.⁣
⁣
This was a good reminder of how important it is to understand the internals of the systems we rely on every day.⁣
⁣
For those unfamiliar, PostgreSQL uses a 32-bit transaction counter (XID) that wraps around after ~2.1 billion transactions. If old rows aren’t vacuumed and frozen in time, PostgreSQL can no longer determine which rows are visible, forcing it to stop accepting new writes to prevent data corruption.⁣
⁣
In our case, it turned out that autovacuum wasn’t keeping up due to high write throughput and a few misconfigured thresholds.⁣
⁣
What helped:⁣
⁣
👉🏻 Identifying large tables with unvacuumed rows.⁣
👉🏻 Manually running 𝖵𝖠𝖢𝖴𝖴𝖬.⁣
👉🏻 Tuning autovacuum workers settings and vacuum cost limits.⁣
⁣
It’s one of those things that often goes unnoticed until it becomes urgent. If you're running PostgreSQL on RDS (or self-managed), keep an eye on 𝖺𝗀𝖾(𝖽𝖺𝗍𝖿𝗋𝗈𝗓𝖾𝗇𝗑𝗂𝖽) and ensure autovacuum is running efficiently.⁣
⁣
Invisible debt in infrastructure has a way of surfacing at the worst possible time. This one got our attention early, worth sharing in case it helps others avoid a painful surprise.

[Dev Tyagi @devptyagi01]

Another #Hiring post 🚨

We're also looking for Backend Engineering Interns at @temple.

Skillset preferred (again, not limited to): Go, Python, Kafka.

Please note that we're only looking for people who're okay with working on-site. Location: Gurgaon, India.

Do reach out with your Resumes / Portfolios / GitHub profiles, or tag someone you might know who can be a good fit.

[Dev Tyagi @devptyagi01]

Update: Have received a lot of applications, going through all of them. Will take time.

[Dev Tyagi @devptyagi01]

#Hiring Post 🚨

We at @temple are looking for Frontend Engineering Interns. Someone with high agency - who enjoys complete ownership, and finds a fit in early-stage companies developing at a high pace.

Skills preferred (but not limited to) - Typescript, React, Vue.

Please reach out to me or tag someone you might know who would like to be a part of a new age health startup.

[Dev Tyagi @devptyagi01]

I’ve received a lot of applications, Will review all later tonight.

[Dev Tyagi @devptyagi01]

#Hiring Post 🚨

We at @temple are looking for Frontend Engineering Interns. Someone with high agency - who enjoys complete ownership, and finds a fit in early-stage companies developing at a high pace.

Skills preferred (but not limited to) - Typescript, React, Vue.

Please reach out to me or tag someone you might know who would like to be a part of a new age health startup.

[Deepinder Goyal @deepigoyal]

Coming soon.

Follow @temple for more updates.

[Dev Tyagi @devptyagi01]

The worst part about today's @Cloudflare outage was that the dashboard was inaccessible. There was no way we could go ahead and change the DNS records.

And to make things worse, even our domain registrar’s site depended on Cloudflare… so changing nameservers wasn’t an option either.

[Deepinder Goyal @deepigoyal]

I’m not sharing this as the CEO of Eternal, but as a fellow human, curious enough to follow a strange thread. A thread I can’t keep with myself any longer.

It’s open-source, backed by science, and shared with you as part of our common quest for scientific progress on human longevity.

Newton gave us a word for it. Einstein said it bends spacetime. I am saying gravity shortens lifespan. 

Read on, and tell me what you think.

[Dev Tyagi @devptyagi01]

Stay tuned folks ✨

[Deepinder Goyal @deepigoyal]

Once upon a time, people believed the Earth was flat. And then they didn’t. Then they believed the sun revolved around the Earth. Until they didn’t.

Humanity has built rockets, sequenced genomes, and cloned cells. Yet, in all our brilliance, we may have missed something glaringly simple.

At Continue, we’ve been chasing a crazy insight into why we age; a pattern that’s been hiding in plain sight for eternity. We’ve tried desperately to disprove it. We couldn’t.

Two years later, clues from biology, physics, evolution, and medicine are all pointing in the same direction.

In 48 hours, I’ll share what we’ve found and how one element of our environment may hold the key to slowing human aging.

Stay tuned.

[Deepinder Goyal @deepigoyal]

So many people keep asking me about Continue. What is it? What are you up to? Here you go...

Continue started as a research effort two years ago, with the belief that if the human body is a system, it should also have its leverage points. The simple levers that, when adjusted, could fundamentally alter how we age and live.

Along with a team of initially skeptical researchers, we've been investigating a penny-drop insight about human aging. Something that's been hiding in plain sight for eternity. But more on that in a few weeks. We are at the tail-end of the research on this hypothesis, which if true, could fundamentally change our understanding of biology and aging.

But today isn't about that. It's bigger than that.

Today, we are expanding Continue Research to include a $25 million fund (entirely personally backed) to support researchers across the world who dare to ask simpler questions than anyone else. Who believe biology might be far simpler than we've made it.

For over a decade, I have believed that most of the world’s problems stem from our short human lifespans. Continue Research’s goal is to extend healthy human function long enough that humans stop making short-term decisions.

Read more about Continue’s purpose at – https://t.co/2jbRl1CHvq

This will be a multi-decadal journey. Our goal here is to become a small catalyst in humanity's journey of conscious evolution. To lead us into the Post-Darwin era.

Researchers, please look us up and apply for funding/grants at – https://t.co/3bbtOyXEPf
———
PS: Continue is not a part of Eternal