vissapra

GROKKING NOTES

I liked the way Grokking the coding interview organized problems into learnable patterns. However, the course is expensive and the majority of the time the problems are copy-pasted from leetcode. As the explanations on leetcode are usually just as good, the course really boils down to being a glorified curated list of leetcode problems.

So below I made a list of leetcode problems that are as close to grokking problems as possible.

Pattern: Sliding Window

A curated list of AWS resources to prepare for the AWS Certifications

A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.

Internet Scale Services Checklist

A checklist for designing and developing internet scale services, inspired by James Hamilton's 2007 paper "On Desgining and Deploying Internet-Scale Services."

http://mvdirona.com/jrh/talksandpapers/jamesrh_lisa.pdf

Basic tenets

Does the design expect failures to happen regularly and handle them gracefully?
Have we kept things as simple as possible?

	import java.util.HashMap;
	import java.util.concurrent.locks.Lock;
	import java.util.concurrent.locks.ReadWriteLock;
	import java.util.concurrent.locks.ReentrantReadWriteLock;

	public class ConcurrentMap<K,V> extends HashMap<K,V> {

	private final Lock readLock;
	private final Lock writeLock;

	Facebook:

	https://www.facebook.com/notes/learn-golang/free-go-resources-available-in-internet/781530568600486

	Go learning resources available in Internet.

	Official GoLang Sites:

	Golang: http://golang.org
	Golang Blog: https://blog.golang.org/

	Remove all containers of a image
	docker ps -a \| awk '{ print $1,$2 }' \| grep <image> \| awk '{print $1 }' \| xargs -I {} docker rm {}
	docker ps -a \| awk '$2~/<image>/ {print $1}' \| xargs -r docker rm

	Docker run
	docker run -ti -p 9098:9098 --env-file=env-file <image> /bin/sh

	You can run the following command to get the logs for a task, running or not.

	docker logs $(docker inspect --format "{{.Status.ContainerStatus.ContainerID}}" <task_id>)

	openssl s_client -showcerts -connect {HOST:PORT} </dev/null 2>/dev/null\|openssl x509 -outform PEM >server.pem
	openssl x509 -outform der -in server.pem -out server.der
	sudo keytool -import -alias your-alias -keystore jre/lib/security/cacerts -file server.der