jkreps

Producer

Setup
bin/kafka-topics.sh --zookeeper esv4-hcl197.grid.linkedin.com:2181 --create --topic test-rep-one --partitions 6 --replication-factor 1
bin/kafka-topics.sh --zookeeper esv4-hcl197.grid.linkedin.com:2181 --create --topic test --partitions 6 --replication-factor 3

Single thread, no replication

bin/kafka-run-class.sh org.apache.kafka.clients.tools.ProducerPerformance test7 50000000 100 -1 acks=1 bootstrap.servers=esv4-hcl198.grid.linkedin.com:9092 buffer.memory=67108864 batch.size=8196

pfrazee

In-Application Sandboxing with Web Workers

A design rationale.

For the past fews years, the Web has been shifting control to the client. Given the limitations of remote services, developers are now looking for ways to "unhost" static applications – that is, break the dependency on remote servers while still using the Web platform.

One untapped technology for client-side control is the Web Worker Sandbox. This API lets the Page load, execute, and destroy separate Worker threads which use their own Virtual Machines. By using Worker Sandboxes to drive behavior, the Web can give users the choice of which software they run together, shifting development from a centralized SaaS model into a distributed and free (as in freedom) script-sharing model.

Worker Sandboxes can Execute Arbitrary Code

nrocine

mkdir ~/kafka

vagrant init metrics http://files.vagrantup.com/precise64.box
vagrant up
vagrant ssh

sudo apt-get update
sudo apt-get install curl

sudo apt-get install python-software-properties

branneman

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

const Article = require('../../../../app/models/article');

Those suck for maintenance and they're ugly.

Possible solutions

dodyg

#Intro

Kotlin is a new programming language for the JVM. It produces Java bytecode, supports Android and generates JavaScript. The latest version of the language is Kotlin M5.3

Kotlin project website is at kotlin.jetbrains.org.

All the codes here can be copied and run on Kotlin online editor.

Let's get started.

gak

function _common_section
    printf $c1
    printf $argv[1]
    printf $c0
    printf ":"
    printf $c2
    printf $argv[2]
    printf $argv[3]
    printf $c0
    printf ", "

ficusk

package your.awesome.app;

import android.graphics.Bitmap;
import android.support.v4.util.LruCache;
import com.android.volley.toolbox.ImageLoader.ImageCache;

public class LruBitmapCache extends LruCache<String, Bitmap> implements ImageCache {

	public LruBitmapCache(int maxSize) {
		super(maxSize);

sergeyzenchenko

#include <dispatch/dispatch.h>

typedef void (^MHChannelsBlock)(id sender, NSDictionary *dictionary);

/*!
 * A "channel" is like a private NSNotificationCenter between just two objects
 * (although more are possible).
 *
 * Instead of making your objects, such as two view controllers, communicate

sergeyzenchenko

Instructions

Enable ‘Run’ in the ‘Build’ section of your test bundle’s scheme. (See http://www.raingrove.com/2012/03/28/running-ocunit-and-specta-tests-from-command-line.html)

Install the Kicker tool and the dependencies

$ gem install kicker open4 colored xcodebuild-rb

xslim

// Connecting AFIncrementalStore & MagicRecord

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { 

    PDDebugger *debugger = [PDDebugger defaultInstance];
    [debugger connectToURL:[NSURL URLWithString:@"ws://localhost:9000/device"]];
    [debugger enableNetworkTrafficDebugging];
    [debugger forwardAllNetworkTraffic];
    [debugger enableCoreDataDebugging];