Frank J Kelly kellyfj

# http://wiki.apache.org/solr/FAQ#How_can_I_delete_all_documents_from_my_index.3F
# http://wiki.apache.org/solr/UpdateXmlMessages#Updating_a_Data_Record_via_curl

curl "http://index.websolr.com/solr/a0b1c2d3/update?commit=true" -H "Content-Type: text/xml" --data-binary '<delete><query>*:*</query></delete>'

I'm amused at the traction this little gist is getting on Google! I would be remiss not to point out that six+ years later I'm still helping thousands of companies on a daily basis with their search index management, by providing managed Solr as a service over at Websolr, and hosted Elasticsearch at Bonsai. Check us out if you'd like an expert helping hand at Solr and Elasticsearch hosting, ops and support!

Git Wars: GitHub vs Bitbucket

Introduction

Now, you might think the answer I'm going to give you is already obvious because I'm using GiHub right now, but it's not. Both GitHub and Bitbucket offer great Git services, but each has its own features and pricing plans. In the following... thing, I'm going to compare the two and then offer a final solution that should work for most people.

TL;DR: Both. Use GitHub for open source and public repos (you'll spend most of your time here) and Bitbucket for private repos. But, sign up for GitHub first, then import account into Bitbucket. Also, check comments for updates. P.S. I personally prefer GitHub.

	Latency Comparison Numbers (~2012)
	----------------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns 3 us
	Send 1K bytes over 1 Gbps network 10,000 ns 10 us
	Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD


	<plugin>
	<groupId>org.apache.maven.plugins</groupId>
	<artifactId>maven-enforcer-plugin</artifactId>
	<version>1.1.1</version>
	<executions>
	<execution>
	<id>enforce</id>
	<configuration>
	<rules>

	The MIT License (MIT)

	Copyright (c) 2015 Leonardo Fedalto

	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:

	gradle build using
	plugin: 'protobuf'
	buildscript {
	repositories {
	mavenCentral()
	jcenter()
	}

	dependencies {
	classpath 'ws.antonov.gradle.plugins:gradle-plugin-protobuf:0.9.1'

	import javax.crypto.*;
	import javax.crypto.spec.GCMParameterSpec;
	import java.nio.ByteBuffer;
	import java.security.SecureRandom;
	import java.util.Arrays;

	public class AESGCMUpdateAAD2 {

	// AES-GCM parameters
	public static final int AES_KEY_SIZE = 128; // in bits

	The standard AWS EC2 instances support using a .PEM key to log in, instead of a more common SSH username/password combination. If you want to use Rsync to transfer data from your local machine to an AWS EC2 instance you will need to change the Rsync command to be something like this:

	1
	rsync -rave "ssh -i PEMKEYFILE.pem" /path/to/local/files/* ec2-user@EC2_INSTANCE_HOSTNAME:/path/to/remote/files
	For simplicities sake I ensured that I was in the directory where the .pem key was saved, but you can adjust the command to give the path to your key file.

	Beyond this it's just like regular Rsync, so just follow the on-screen commands and you get secured file transfer between your local machine and your remote AWS EC2 instance

Frank J Kelly kellyfj

Git Wars: GitHub vs Bitbucket

Introduction

Interface and Functionality