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+---
+---
+
+# <!--fit--> Tech 2019
+
+_- nemo_
+
+---
+
+# <!-- fit -->2-feet-rule
+
+---
+
+# Caveats 🤷‍
+
+-   Non-Exhaustive
+-   Aligned to Razorpay
+
+---
+
+# For every Tech
+
+1.  What is it?
+2.  Why should you care?
+3.  What can we use it for?
+
+---
+
+![bg vertical](https://fakeimg.pl/1920x400/40407a/fff/?text=serverless)
+![bg](https://fakeimg.pl/1920x400/ff793f/fff/?text=blockchain)
+![bg](https://fakeimg.pl/1920x400/2c2c54/fff/?text=kubernetes)
+![bg](https://fakeimg.pl/1920x400/b33939/fff/?text=microservices)
+![bg](https://fakeimg.pl/1920x400/ff5252/fff/?text=service+mesh)
+![bg](https://fakeimg.pl/1920x400/227093/fff/?text=events+vs+metrics+vs+tracing)
+
+<!-- ![bg](https://fakeimg.pl/1920x400/cd6133/fff/?text=chaos+engineering) -->
+<!-- ![bg](https://fakeimg.pl/1920x400/84817a/fff/?text=react) -->
+
+---
+
+# serverless
+
+## What is it?
+
+If your application isn't called frequently enough, your computing resources can be brought up Just In Time.
+
+---
+
+## Why should you care?
+
+-   Code runs instantly
+-   You pay for what you run
+-   Scaling is easier
+
+---
+
+## Sample Usecases
+
+-   Any kind of Batch Jobs that take <15 minutes
+-   A rarely visited website
+-   If-this-then-that (Infrequent Trigger based Actions)
+    -   When a user uploads a file ->
+    -   When a user sends an email ->
+
+---
+
+## Limitations
+
+-   Vendor-Lockins
+-   Not all Languages
+
+---
+
+# blockchain
+
+---
+
+# what is it?
+
+Techno-Libertarians's dream of removing central authorities from the world's economy, to only end up crashing it entirely.
+
+---
+
+# what is it?
+
+blockchain is a verifiable distributed database that doesn't require trusted parties
+
+---
+
+![bg](https://fakeimg.pl/1440x900/ff793f/fff/?text=verifiable)
+
+---
+
+![bg](https://fakeimg.pl/1440x900/218c74/fff/?text=distributed)
+
+---
+
+![bg](https://fakeimg.pl/1440x900/474787/fff/?text=database)
+
+---
+
+![bg](https://fakeimg.pl/1440x900/227093/fff/?text=trustless)
+
+---
+
+# why should you care?
+
+---
+
+# really, should I care?
+
+If you trust developers to write code that isn't buggy, and software developers to regulate finance better than the government does - Maybe?
+
+---
+
+![bg](https://fakeimg.pl/1440x900/706fd3/fff/?text=kubernetes)
+
+---
+
+# the google hype cycle
+
+-   Map Reduce -> Apache Hadoop
+-   BigTable -> Apache HBase
+-   Chubby -> Apache Zookeeper
+-   Spanner -> Cockroach DB
+-   Borg -> kubernetes
+
+---
+
+# Borg
+
+![](images/borg.png)
+
+---
+
+# What is it?
+
+Large scale cluster management tool to help you run thousands of applications
+
+---
+
+# why should you care?
+
+-   we run kubernetes and all of our services run on kubernetes
+-   kubernetes is commoditization of the cloud (GCP/AWS :fist_raised:)
+-   k8s advantage :tm:
+
+---
+
+# <!--fit-->logs v/s metrics v/s tracing
+
+---
+
+# logs
+
+-   easiest
+-   most verbose
+-   no bird eye view
+
+---
+
+# metrics
+
+-   most important
+-   dimensions/cardinality of a metric
+
+---
+
+# what metrics
+
+![](images/red.jpg)
+
+---
+
+# USE
+
+> For every resource, check utilization, saturation, and errors.
+
+-   utilization: the average time that the resource was busy servicing work [2]
+-   saturation: the degree to which the resource has extra work which it can't service, often queued
+-   errors: the count of error events
+
+---
+
+# tracing
+
+-   hardest
+-   needs to be done well
+
+---
+
+![bg](https://fakeimg.pl/1440x900/ff793f/fff/?text=microservices)
+
+---
+
+# <!-- fit --> microservices
+
+![](images/uber.jpg)
+
+---
+
+# microservices
+
+aka: How to Trade Development complexity for Operational complexity