Those are my personal notes on AWS Solution Architect certification preparation. Hope you find them usefull.
To pass AWS certification, you should have:
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.
| # run this every minute from cron as a quick and dirty solution to get some | |
| # haproxy stats on each of your listeners over to stackdriver | |
| instance=$(curl -s "http://169.254.169.254/latest/meta-data/instance-id") | |
| # while [ 1 ]; do | |
| cp /dev/null /tmp/hastats.json | |
| echo 'show stat' | socat - UNIX-CLIENT:/tmp/haproxy.sock \ | |
| |while IFS=',' read pxname svname qcur qmax scur smax slim stot bin bout dreq \ | |
| dresp ereq econ eresp wretr wredis status weight act bck chkfail chdown lastchg \ |
Ambari uses a local postgres db by default.This page describes how to use ambari-server with remote postgres server.
Ambari is installed on centos 6.4 with the following command:
curl -so /etc/yum.repos.d/ambari.repo http://public-repo-1.hortonworks.com/ambari/centos6/1.x/GA/ambari.repo
yum repolist
yum -y install ambari-server
| 0. What is the name of the ELB which needs to be pre-warmed? | |
| a. e.g. yourwebapp-yourcompany-123456789.us-east-1.elb.amazonaws.com | |
| 1. What is the approximate increase percentage in traffic, or expected requests/sec that will go through the load balancer (whichever is easier to answer)? | |
| a. e.g. 3,500 per second | |
| 2. Do you know the average amount of data passing through the ELB per request/response pair? | |
| a. e.g. Roughly 250KB. | |
| 3. Expected percent of traffic going through the ELB that will be using SSL termination? |
| The MIT License (MIT) | |
| Copyright (c) 2014 Matteo Rinaudo | |
| Permission is hereby granted, free of charge, to any person obtaining a copy | |
| of this software and associated documentation files (the "Software"), to deal | |
| in the Software without restriction, including without limitation the rights | |
| to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| copies of the Software, and to permit persons to whom the Software is | |
| furnished to do so, subject to the following conditions: |
| # ec2 instance info | |
| aws ec2 describe-instances | sed -e 's/"Key"/"key"/' -e 's/"Value"/"value"/' |jq -c '[.Reservations[].Instances[]|{PrivateIpAddress,PublicIpAddress, AZ: .Placement.AvailabilityZone, Name: (.Tags|from_entries|.Name)}]|sort_by(.Name)[]' | |
| # ec2 instance info with filter | |
| aws --profile us ec2 describe-instances --filters '[{"Name":"tag-key","Values":["Name"]}, {"Name":"tag-value","Values":["*agentserver*"]}]' | sed -e 's/"Key"/"key"/' -e 's/"Value"/"value"/' |jq -c '[.Reservations[].Instances[]|{PrivateIpAddress,PublicIpAddress, AZ: .Placement.AvailabilityZone, Name: (.Tags|from_entries|.Name)}]|sort_by(.Name)[]' | |
| # ebs snapshot info |
| // From https://github.com/kr/s3/tree/master/s3cp | |
| // Added public read for uploaded files | |
| // Command s3cp copies a file to or from Amazon S3. | |
| // | |
| // Usage: | |
| // | |
| // s3cp file url | |
| // s3cp url file | |
| // | |
| // The file does not need to be seekable or stat-able. You can use s3cp to |
