Garshasp hirenshah005

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

Revert the full commit

Sometimes you may want to undo a whole commit with all changes. Instead of going through all the changes manually, you can simply tell git to revert a commit, which does not even have to be the last one. Reverting a commit means to create a new commit that undoes all changes that were made in the bad commit. Just like above, the bad commit remains there, but it no longer affects the the current master and any future commits on top of it.

git revert {commit_id}

About History Rewriting

Delete the last commit

Deleting the last commit is the easiest case. Let's say we have a remote origin with branch master that currently points to commit dd61ab32. We want to remove the top commit. Translated to git terminology, we want to force the master branch of the origin remote repository to the parent of dd61ab32:

	[user]
	name = Pavan Kumar Sunkara
	email = [email protected]
	username = pksunkara
	[init]
	defaultBranch = master
	[core]
	editor = nvim
	whitespace = fix,-indent-with-non-tab,trailing-space,cr-at-eol
	pager = delta

	# Don't show errors which contain full path diclosure (FPD)
	# Use that line only if PHP is installed as a module and not per CGI
	# try using a php.ini in that case.
	# Change mod_php5.c to mod_php7.c if you are running PHP7
	<IfModule mod_php5.c>
	php_flag display_errors Off
	</IfModule>

	# Don't list directories
	<IfModule mod_autoindex.c>

	# Hello, and welcome to makefile basics.
	#
	# You will learn why `make` is so great, and why, despite its "weird" syntax,
	# it is actually a highly expressive, efficient, and powerful way to build
	# programs.
	#
	# Once you're done here, go to
	# http://www.gnu.org/software/make/manual/make.html
	# to learn SOOOO much more.

	/var/log/mongodb/mongod.log {
	hourly
	missingok
	rotate 5
	compress
	delaycompress
	notifempty
	create 0640 mongodb mongodb
	sharedscripts
	postrotate

	# Automated AMI and Snapshot Deletion
	#
	# @author Bobby Kozora
	#
	# This script will search for all instances having a tag named "Backup" with a value of "Backup".
	# As soon as we have the instances list, we loop through each instance
	# and reference the AMIs of that instance. We check that the latest daily backup
	# succeeded then we store every image that's reached its DeleteOn tag's date for
	# deletion. We then loop through the AMIs, deregister them and remove all the
	# snapshots associated with that AMI.

	#Step 1: Get a list of all alarms in INSUFFICIENT_DATA status
	#Step 2: Get a list of all instances (stopped and started)
	#Step 3: Find all alarms on instances that don't exist, and delete them
	###################################################
	#Step 1: Get alarms in INSUFFICENT_DATA state
	###################################################
	#The max that we can get per loop is 100; all alarms for nonexistent instances will be in
	#INSUFFICIENT_DATA state so let's just go through those.
	insuff_alarms = []
	loops = 1

	#!/bin/sh

	# Make sure to:
	# 1) Name this file `backup.sh` and place it in /home/ubuntu
	# 2) Run sudo apt-get install awscli to install the AWSCLI
	# 3) Run aws configure (enter s3-authorized IAM user and specify region)
	# 4) Fill in DB host + name
	# 5) Create S3 bucket for the backups and fill it in below (set a lifecycle rule to expire files older than X days in the bucket)
	# 6) Run chmod +x backup.sh
	# 7) Test it out via ./backup.sh

	#!/bin/bash
	kill -USR2 `cat tmp/pids/unicorn.pid`