Ashwini Anand – Medium

Nov 5

END-TO-END ARGUMENTS IN SYSTEM DESIGN

END-TO-END ARGUMENTS IN SYSTEM DESIGN paper is one of the classic papers written by J.H. Saltzer, D.P. Reed and D.D. Clark. This paper discusses one of the design principles, called end-to-end argument, which provides guidance about where to place a function in layered systems. The paper argues that function implementation…

Software Engineering

3 min read

Software Engineering

3 min read

Nov 5

Intuition for O(log 𝑛) time complexity of the update and query operations in a Segment tree

I had posted an answer to similar question 5 years ago on quora . Reposting the same here. Time complexity for query operations in a segment tree is O(log n) because there are O (log n) levels in a segment tree and at max we will have to process 4…

Data Structures

3 min read

Intuition for O(log 𝑛) time complexity of the update and query operations in a Segment tree

Data Structures

3 min read

Nov 29, 2020

Exception Handling in Scala

When I started working on scala I had a tough time understanding how exception handling works in scala. I had some background in java and javascript and I had exclusively worked with imperative codebases till that time. When I look back I think my understanding about exception handling in scala came…

Scala

4 min read

Scala

4 min read

Sep 27, 2020

Solution for java.net.ConnectException: General SSLEngine problem

Recently I faced below error in my play application. My play application was trying to hit a server over https. {"errors":[{"code":"General SSLEngine problem","message":"java.net.ConnectException: General SSLEngine problem\n\tat org.asynchttpclient.netty.channel.NettyConnectListener.onFailure(NettyConnectListener.java:162)\n\tat org.asynchttpclient.netty.channel.NettyConnectListener$1.onFailure This exception occurred because the keystore used by play application did not have server’s certificate loaded. The server’s certificate in keystore tells…

Ssl Certificate

2 min read

Ssl Certificate

2 min read