Suchit Puri

While mathematics is in itself quite interesting and forms the basis of any modern day research, be it computational biology, machine learning or building complex structure, it can be quite a challenge to decide where to start.  That is why i decided to explore Fractals, thinking of it as a bridge between the nature and science. It brings in some really fascinating concepts which should be good enough for me as a gateway go deeper.  Fractals are in simple language never ending patterns which keep on repeating without an end, because fractals are never ending they have an infinite perimeter but finite area.  Since the patterns repeats indefinitely but if you draw a circle around the peremeter the area will remain finite.  It is like adding 1+0.1+0.01+0.001 and never making 2 This video explains the basic concept really well  Fractals are found everywhere nature in Trees, Rivers, Branching patterns, Hurricanes and Galaxies. It tries to bring order and understandin...

  Cilium operates at L3/L4 to provide trasitional networking and security services It also works at L7 to provide application level servies like gRPC, HTTP, Kafka Cilium inserts itself in the kernel at Network IO Application Sockets and Tracepoints to implement security and visibility. Intelligent Routing Cilium can do more intelligent routing other than opening or blocking a port Allow all HTTP requests with method GET and path /public/.*. Deny all other requests. Allow service1 to produce on Kafka topic topic1 and service2 to consume on topic1. Reject all other Kafka messages. Require the HTTP header X-Token: [0-9]+ to be present in all REST calls. More examples of policies at  https://docs.cilium.io/en/stable/policy/#layer-7 Service to Service Communication

Scaling Kubernetes There are monitoring and logging systems, but its tough to monitor everything accurately in a distributed environment The Kubernetes cluster does not expose kernel level monitoring data Process/Service Specific Monitoring Since Kubernetes Service is essentially a process run by the linux Kernel With eBPF it is easy to monitor a specific process, so teams can monitor a process running across all of their infrastructure nodes. More granular than logs No special instrumentation needed unlike the sidecar pattern eBPF install a very small overhead Challenges There is no easy way to install eBPF on all nodes of the cluster, orchestration is a challenge, they can use Cilium like tools to get more visibility into their cluster though. References: https://searchitoperations.techtarget.com/answer/Why-and-how-to-use-eBPF-for-Kubernetes-scaling

Written on: Jan 6th 2022 While Linux is a great operating system but because of the nature of the how it is built in an open source community it is not the mostly friendly operating system out there, there are [[challenges in modifying the kernel]], adding modules and with the new AI/IoT based devices using linux, there are even more challenges in debugging, tracking, tracking and modifying. Extended Berkley Packet Filter tries to solve this problem to extending, debugging the kernel by posing itself as a kernel technology which would let you extend the kernel without editing the source code or adding additional modules ( thus avoiding recompilation), it can be thought of as a lighter virtual machine linked with the kernel ( similar to the Lua JIT compiler in nginx ?) where programs can run BPF bytecode with all the kernel resources available in a single location Its like a program which runs in user space, but can extend the kernel as kernel calls it and runs the bytecode in a sandbox...

It is May 11th 2020 and most of India has been under lockdown for 46 straight days. These have been tough times for everyone. While some of the folks i know have been cribbing about being bored to death in this lockdown, for me it has been a busy time. My current field of work which is "Cloud Technology" picked up as everyone was locked up with nothing but technology to entertain and survive and hence there was a lot of work. While me and my family was trying to navigate the chaos and madness of ordering everything online, i would say we were able to deal with the situation without going out much.  This was until my phone broke, crashed, bricked, it was gone.  While i had a spare 4 year old iPhone to fall back on but you know about spare phones, they were too old to trade for a newer one is why you decided to label it as a spare and keep it. They almost never work. So after struggling to get my office and personal stuff to work on an old phone and tablet, i decided i needed t...

Sunset

January has been pretty exciting for me since last three years, It marks my annual ritual trip to Las Vegas, this is my third trip this year. Almost all of my trips have been because of work. Since Las Vegas has some of the biggest hotels[1] in the world it has become a natural choice for some of the biggest American companies to host their internal and external conferences. As an example, CES hosts some 200,000 people every year [2]. This year I started my 30-hour flight journey, yes you heard it right I had a 9-hour layover at the London airport. Though it was far from ideal it was not that bad. If you can arrange priority pass [3] card from your credit card company or pay for it. Then you can use the lounge, showers and much more for free. I manage to steal the below picture from a hoarding at the airport.  Then after much rest and time pass at the airport terminal, I boarded my next flight to Las Vegas. When I landed McCarran International Airport, the first surprise for me was the...

#Albufeira is a small town just 3h from Lisbon. This was our first stop of the trip. This place is absolutely beautiful. Since we went there during not so crowded time it was even more enjoyable !! When everybody is a photographer #fail Stairway to heaven Symmetry Defying #Gravity festivities in #Lisbon Palace of Pena We went to #Sintra on a day trip to see the beautify national Palace of Pena. Sintra is a small town just 30 mins from Lisbon. Sintra is a very popular tourist destination, as a result, is usually very busy, so plan your trip accordingly. Jerónimos Monastery in Lisbon. We did not get a chance to see the inside of the monastery since all the monuments are closed on Monday in Lisbon. Torre De Bellém National Sanctuary of Christ the King. This was such a surprise, we went there on 1st January trying our luck as all the monuments were closed on 1st of Jan, but to our surprise, we found this place open and we got a chance to go at the top of the statute.

It was a great experience to talk to a huge audience in Mumbai and Delhi about how to start your ML journey at Google Cloud Summit ’18 India

#AbhuDhabi The land if #souks, #palaces and grand mosques.

Link: Building A Data Pipeline in 2017 The slides for my talk @IIIT-Allahabad on building data analytics pipeline in 2017

Recently i have been trying out the new kid on the block, React.js and its unidirectional data/state management partner Flux. The concept of React.js is very simple. Your app is a combination of react components.  Every component has a state and properties. Whenever there is any change in the state or properties of the components the component is rerendered. Though in the above points i used the state and properties very casually. Usually its very important to get your head around when to use state and when to use properties.  You can refer to this article  https://github.com/uberVU/react-guide/blob/master/props-vs-state.md  to find out more about props vs state.  On the other hand Flux which calls itself an architectural pattern rather than a framework, is also straight forward. There is a dispatcher whose main goal is to dispatch the event to all the registered objects. There is a store , the store basically encapsulates the state of a component or group of components. The store reg...

Model objects, defined by the ember-data library abstracts away the complexities involved with handling the communication with the server, serializing, as well as de-serializing of the response received from the server. In order to define your ember-data model object, you just need to extend the DS.Model object present in ember-data module as follows: Models form the core of any MVC design pattern as they describe the core business domain at hand. In Ember.js, every route has an associated model that describes the business domain that the route needs to work on. Almost all of the examples that we have seen so far operate on the static data that is returned from the model property of the routes. But most of the times the data that needs to be operated upon is not static and is fetched from a remote server. Traditionally we have used jQuery or plain JavaScript to fetch the data from the server, using AJAX calls and then using those returned JSON objects as models in our application. This...

Some music #kasol (at Evergreen Cafe,kasol)

moon dance cafe kasol #german #bakery #kasol (at moon dance cafe )

Ember CLI includes the fast asset pipeline broccoli (can be found at https://github. com/broccolijs/broccoli ). Broccoli draws heavy inspiration from the Rails asset pipeline. It runs on node.js and is independent of the backend platform you are working with. One of the most common ways to handle asset compilation and minifying is to use the Grunt task runner, or a similar tool. Let’s say you are working on an application that involves the compilation of CoffeeScript, Sass, and other similar assets. Now to make these assets available to our application, you will have to write a Grunt task that does the compilation. When you start the active development of your application, you will realize that running the Grunt task after making any changes to your CoffeeScript or Sass files iscumbersomeandtime-consuming.So,youstartusinggrunt watchinyour application to rebuild your entire application whenever you make any changes anywhere in your application. But very soon, when your application ...

After all these years and many countries that i have visited. I still feel that there is no place on earth that even comes close to Leh. The picture says it all. #leh

JavaScript is a multi paradigm dynamic language that supports all of object-oriented, procedural, and functional styles of writing code. This makes it one of the most powerful, as well as the most misunderstood language of all times. Often one aims to write code that is modular, extensible, and testable. But not everyone is able to write good quality code because it requires deep understanding of the language, design principles, as well as discipline to write code that consistently follows a particular school of thought. Ember.js framework helps in creating applications which are highly modular, extensible, and can be tested easily, and the Ember object model lies in the heart this framework.

Link: User-Focused Security: End-to-End Encryption Plugin for Yahoo Mail yahoo : By Alex Stamos, Chief Information Security Office At Yahoo, we’re committed to protecting our users’ security. That’s why I’m so proud to share some updates on our latest security innovation: an end-to-end (e2e) encryption plugin for Yahoo Mail. Just a few years ago, e2e encryption was not…

Ember.js Talk @ JS Channel Bangalore 2014 . The day when i shared the stage with Douglas Crockford Himself.