jsimanjuntak

My Elasticsearch cheatsheet with example usage via rest api (still a work-in-progress)

Shortlinks:

Cluster Health
- Index Level
- Shard Level
Nodes Overview
Indices Overview
Cluster Maintenance

Installing and using Percona XtraBackup

For MySQL/MariaDB database servers on Ubuntu.

Set-up and Install

Add Percona to your repository.

Backup your sources.

sudo cp /etc/apt/sources.list /etc/apt/sources.list.backup

Edit your sources.

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.

	# Elasticsearch Cheatsheet - an overview of commonly used Elasticsearch API commands

	# cat paths
	/_cat/allocation
	/_cat/shards
	/_cat/shards/{index}
	/_cat/master
	/_cat/nodes
	/_cat/indices
	/_cat/indices/{index}

	#!/bin/bash
	#Provided by @mrlesmithjr
	#EveryThingShouldBeVirtual.com

	# Graylog2 upgrade script for Ubuntu

	set -e
	# Setup logging
	# Logs stderr and stdout to separate files.
	exec 2> >(tee "./graylog2/upgrade_graylog2.err")