Divyanshu Tyagi

Murphy's Law | Rethinking life choices on daily basis

[Divyanshu Tyagi @stressedTyagi]

If you found this useful:

1. Check your HTTP client configs for hedging
2. Audit your non-idempotent endpoints
3. Add idempotency keys where needed
4. Drop a 🔥 if you've been bitten by this before!

Follow for more distributed systems debugging stories.

[Divyanshu Tyagi @stressedTyagi]

🚨 I spent hours debugging why our API was creating DUPLICATE records in production.

The culprit? A resilience pattern I'd never heard of: Hedging

Here's what I learned about Retry vs Hedging (and why you need to know the difference) 🧵

[Divyanshu Tyagi @stressedTyagi]

TL;DR:

1️⃣ Retry = Sequential fallback after failure
2️⃣ Hedging = Parallel requests for speed
3️⃣ Hedging + Non-idempotent ops = 💥 Duplicates
4️⃣ Always use idempotency keys with hedging
5️⃣ Add logging to detect when hedging fires

[Divyanshu Tyagi @stressedTyagi]

@Wdym12345678 @dealztrendz Which pin code ?

[Divyanshu Tyagi @stressedTyagi]

@Nishant_rawat01 @dealztrendz Me also 14k 🥲

[Divyanshu Tyagi @stressedTyagi]

Hi everyone!

We’re 7 bachelors looking for flats in #Bangalore
Preferred areas: #Bellandur #Sarjapur #Marathahalli #HSRLayout #AECSLayout

Looking for:
2×3BHK or
1×4BHK + 1×3BHK or
7BHK / 5BHK+2BHK

Please DM/comment

@FlatsAndFlatmates @bangalorehousing @BangaloreCity_

[Divyanshu Tyagi @stressedTyagi]

5/5
The lack of a clear explanation and the contradictory status updates show a serious issue with Flipkart's system and customer service. It's incredibly frustrating to deal with this runaround. @Flipkart , why can't you just cancel the order? #FlipkartBigBillionDays

[Divyanshu Tyagi @stressedTyagi]

(1/5)
I cancelled a Flipkart order that was already "shipped." The app confirmed the cancellation, but then it got canceled itself—multiple times. I called customer care, who said they'd done it and to ignore notifications. A few minutes later, the status was "out for delivery."

[Divyanshu Tyagi @stressedTyagi]

(4/5)
Why "try"? I canceled the order on time, multiple times! They're forcing me to reject it at my door and then giving me no guarantee of a refund. This is completely unacceptable and feels like a scam to trap me into accepting a delivery I don't want.

[Divyanshu Tyagi @stressedTyagi]

(3/5)
When I asked what to do, the agent told me to reject the delivery at my doorstep. But the most alarming part? He said, "We will try to refund the order depending on the status."