Laravel Queues

&

High Availability

Moving Away From Sync

Letting someone else manage your data

Managing your own data

Beanstalkd

Moving Away From Sync

Beanstalkd

Simple queueing service

In-memeory container for your jobs

It just holds your jobs

Redis

So what is redis?

Remote Dictionary Server

Advanced key-value cache and store

In-memeory service but not just for queues

Transactions, Pub/Sub, Keys with Limited-Time-To-Live, and Automatic Failover

Multiple redis instances that are interconnected

Redis Cluster is still in beta

Automatically split your dataset across nodes

Continue operations when some of the nodes are failing

Redis Cluster

For More checkout redis.io

Redis Cluster Specification (redis.io/topics/cluster-spec)
Redis Cluster Tutorial (redis.io/topics/cluster-tutorial)
These Slides (http://redis.io/presentation/Redis_Cluster.pdf)

Redis Cluster

Monitoring

Notification

Automatic failover

Configuration provider

Redis & High Availability

Redis

& Sentinel

Laravel & Redis


   Redis::set('foo', 'Foo Value');
 
   $foo = Redis::get('foo');

   Redis::del('foo');

You have the full range of redis commands

http://redis.io/commands


   $redis->set('foo', $value);

   
   $redis = Redis::connection(); // default connection

   $redis = Redis::connection('other-connection');

   
   $redis->command('del', $key);

Laravel & Redis

That's not all

Laravel Redis Drivers

Cacheing

Queueing

What about working with a redis cluster?

Sessions

What about High Availability with Sentinel?

Indatus/Laravel-PSRedis

github.com/Indatus/laravel-PSRedis

Laravel, PHP, Sentinel, and Redis

The Solution

Install it
Configure it
Add the Service Provider

Setting it up

The Redis Service Provider

Laravel's Redis Queue

   <?php namespace Illuminate\Queue;  
 
   class RedisQueue extends Queue implements QueueInterface {

	/**
	 * Create a new Redis queue instance.
	 *
	 * @param  \Illuminate\Redis\Database  $redis
	 * @param  string  $default
	 * @param  string  $connection
	 * @return void
	 */
	public function __construct(Database $redis, $default = 'default', $connection = null)
	{
		$this->redis = $redis;
		$this->default = $default;
		$this->connection = $connection;
	}

        ...
   }

HOw it works

github.com/Sparkcentral/PSRedis

Sparkcentral/PSRedis

Sentinel Wrapper for PHP Redis Clients

It talks to sentinel instead of redis

Replaces the Redis Service Provider

Damien Russell

github.com/olofguard

twitter.com/olofguard