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input {
  redis {
    host => "127.0.0.1"
    type => "redis-input"
    # these settings should match the output of the agent
    data_type => "list"
    key => "logstash"
    # We use json_event here since the sender is a logstash agent
    message_format => "json_event"
  }

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{
  "title": "Apache and Tomcat Logs",
  "services": {
    "query": {
      "list": {
        "0": {
          "query": "apache !tomcat !static",
          "alias": "",
          "color": "#7EB26D",
          "id": 0,

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// Set up the UIRefreshControl.
self.refreshControl = [[UIRefreshControl alloc] init];
[self.refreshControl addTarget:self
                        action:@selector(refreshInvoked:forState:)
              forControlEvents:UIControlEventValueChanged];

// Create a UITableViewController so we can use a UIRefreshControl.
UITableViewController *tvc = [[UITableViewController alloc] initWithStyle:self.tableView.style];
tvc.tableView = self.tableView;
tvc.refreshControl = self.refreshControl;

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// Copyright 2014 BrightTag, Inc. All rights reserved.
package com.brighttag.storm.utils;

import static com.google.common.base.Preconditions.checkArgument;

/**
 * Computes the parallelism for a particular topology and machine configuration.
 *
 * @author codyaray
 * @since 4/21/2014

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package com.mycompany.ssl;

import java.net.Socket;
import java.security.Principal;
import java.security.PrivateKey;
import java.security.cert.X509Certificate;
import java.util.List;

import javax.annotation.Nullable;
import javax.net.ssl.X509KeyManager;

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Backend Architectures

Twitter

ror, scala, jetty, erlang, thrift, mongrel, comet server, my-sql, memchached, varnish, kestrel(mq), starling, gizzard, cassandra, hadoop, vertica, munin, nagios, awstats

• Introduce Gizzard of Twitter - 트위터의 새로운 분산 관리 라이브러리 Gizzard를 소개합니다.
• The Architecture Twitter Uses to Deal with 150M Active Users, 300K QPS, a 22 MB/S Firehose, and Send Tweets in Under 5 Seconds
• Scaling Twitter: Making Twitter 10000 Percent Faster

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Install, Setup, and Test Spark and Cassandra on Mac OS X

This Gist assumes you already followed the instructions to install Cassandra, created a keyspace and table, and added some data.

Install Apache Spark

brew install apache-spark

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/etc/init.d/cloud-management stop
mysql -ppassword -e 'drop database cloud'
mysql -ppassword -e 'drop database cloud_usage'

cloud-setup-databases cloud:password@localhost --deploy-as=root:password
rm -rf /var/log/cloud/management/*
cloud-setup-management
/etc/init.d/cloud-management start

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Provider	Singleton	Instantiable	Configurable
Constant	Yes	No	No
Value	Yes	No	No
Service	Yes	No	No
Factory	Yes	Yes	No
Decorator	Yes	No?	No
Provider	Yes	Yes	Yes

Constant

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// Highcharts CheatSheet Part 1.
// Create interactive charts easily for your web projects.
// Download: http://www.highcharts.com/download
// More: http://api.highcharts.com/highcharts


// 1. Installation.
// Highcharts requires two files to run, highcharts.js and either jQuery, MooTools or Prototype or the Highcharts Standalone Framework which are used for some common JavaScript tasks.
// <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
// <script src="https://code.highcharts.com/highcharts.js"></script>