http://git-wip-us.apache.org/repos/asf/incubator-distributedlog/blob/ef7245e8/content/docs/0.4.0-incubating/admin_guide/zookeeper.html ---------------------------------------------------------------------- diff --git a/content/docs/0.4.0-incubating/admin_guide/zookeeper.html b/content/docs/0.4.0-incubating/admin_guide/zookeeper.html new file mode 100644 index 0000000..9e63a1e --- /dev/null +++ b/content/docs/0.4.0-incubating/admin_guide/zookeeper.html @@ -0,0 +1,595 @@ +<!DOCTYPE html> +<html lang="en"> + + <head> + <meta charset="utf-8"> + <meta http-equiv="X-UA-Compatible" content="IE=edge"> + <meta name="viewport" content="width=device-width, initial-scale=1"> + + <title>Apache DistributedLog (incubating)</title> + <meta name="description" content="Apache DistributedLog is an high performance replicated log. +"> + + <link rel="stylesheet" href="/docs/0.4.0-incubating/styles/site.css"> + <link rel="stylesheet" href="/docs/0.4.0-incubating/css/theme.css"> + <!-- JQuery --> + <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js";></script> + <script src="/docs/0.4.0-incubating/js/bootstrap.min.js"></script> + <link rel="canonical" href="http://distributedlog.incubator.apache.org/docs/0.4.0-incubating/admin_guide/zookeeper.html"; data-proofer-ignore> + <link rel="alternate" type="application/rss+xml" title="Apache DistributedLog (incubating)" href="http://distributedlog.incubator.apache.org/docs/0.4.0-incubating/feed.xml";> + <!-- Font Awesome --> + <script src="//cdnjs.cloudflare.com/ajax/libs/anchor-js/3.2.0/anchor.min.js"></script> + <!-- Google Analytics --> + <script> + (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){ + (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o), + m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m) + })(window,document,'script','https://www.google-analytics.com/analytics.js','ga'); + + ga('create', 'UA-83870961-1', 'auto'); + ga('send', 'pageview'); + </script> + <!-- End Google Analytics --> + <link rel="shortcut icon" type="image/x-icon" href="/images/favicon.ico"> +</head> + + + <body role="document"> + + +<nav class="navbar navbar-default navbar-fixed-top"> + <div class="container"> + <div class="navbar-header"> + <a href="/" class="navbar-brand" > + <img alt="Brand" style="height: 28px" src="/docs/0.4.0-incubating/images/distributedlog_logo_navbar.png"> + </a> + <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar"> + <span class="sr-only">Toggle navigation</span> + <span class="icon-bar"></span> + <span class="icon-bar"></span> + <span class="icon-bar"></span> + </button> + </div> + <div id="navbar" class="navbar-collapse collapse"> + <ul class="nav navbar-nav"> + <!-- Overview --> + <li><a href="/docs/0.4.0-incubating/">V0.4.0</a></li> + <!-- Concepts --> + <li><a href="/docs/0.4.0-incubating/basics/introduction">Concepts</a></li> + <!-- Quick Start --> + <li> + <a href="/docs/0.4.0-incubating/start" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">Start<span class="caret"></span></a> + <ul class="dropdown-menu" role="menu"> + + + <li> + <a href="/docs/0.4.0-incubating/start/building.html"> + Build DistributedLog from Source + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/start/download.html"> + Download Releases + </a> + </li> + + <li role="separator" class="divider"></li> + <li class="dropdown-header"><strong>Quickstart</strong></li> + + + <li> + <a href="/docs/0.4.0-incubating/start/quickstart.html"> + Setup & Run Example + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/tutorials/basic-1.html"> + API - Write Records (via core library) + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/tutorials/basic-2.html"> + API - Write Records (via write proxy) + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/tutorials/basic-5.html"> + API - Read Records + </a> + </li> + + <li role="separator" class="divider"></li> + <li class="dropdown-header"><strong>Deployment</strong></li> + + + <li> + <a href="/docs/0.4.0-incubating/deployment/cluster.html"> + Cluster Setup + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/deployment/global-cluster.html"> + Global Cluster Setup + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/deployment/docker.html"> + Docker + </a> + </li> + + </ul> + </li> + <!-- API --> + <li> + <a href="/docs/0.4.0-incubating/start" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">API<span class="caret"></span></a> + <ul class="dropdown-menu" role="menu"> + <li><a href="/docs/0.4.0-incubating/api/java">Java</a></li> + </ul> + </li> + <!-- User Guide --> + <li class="dropdown"> + <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">User Guide<span class="caret"></span></a> + <ul class="dropdown-menu"> + + + <li> + <a href="/docs/0.4.0-incubating/basics/introduction.html"> + Introduction + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/user_guide/considerations/main.html"> + Considerations + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/user_guide/architecture/main.html"> + Architecture + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/user_guide/api/main.html"> + API + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/user_guide/configuration/main.html"> + Configuration + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/user_guide/design/main.html"> + Detail Design + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/user_guide/globalreplicatedlog/main.html"> + Global Replicated Log + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/user_guide/implementation/main.html"> + Implementation + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/user_guide/references/main.html"> + References + </a> + </li> + + </ul> + </li> + <!-- Admin Guide --> + <li class="dropdown"> + <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Admin Guide<span class="caret"></span></a> + <ul class="dropdown-menu"> + <li><a href="/docs/0.4.0-incubating/deployment/cluster">Cluster Setup</a></li> + + + <li> + <a href="/docs/0.4.0-incubating/admin_guide/operations.html"> + Operations + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/admin_guide/performance.html"> + Performance Tuning + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/admin_guide/loadtest.html"> + Load Test + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/admin_guide/hardware.html"> + Hardware + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/admin_guide/monitoring.html"> + Monitoring + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/admin_guide/zookeeper.html"> + ZooKeeper + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/admin_guide/bookkeeper.html"> + BookKeeper + </a> + </li> + + </ul> + </li> + <!-- Tutorials --> + <li class="dropdown"> + <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Tutorials<span class="caret"></span></a> + <ul class="dropdown-menu"> + <li class="dropdown-header"><strong>Basic</strong></li> + <li><a href="/docs/0.4.0-incubating/tutorials/basic-1">Write Records (via Core Library)</a></li> + <li><a href="/docs/0.4.0-incubating/tutorials/basic-2">Write Records (via Write Proxy)</a></li> + <li><a href="/docs/0.4.0-incubating/tutorials/basic-3">Write Records to multiple streams</a></li> + <li><a href="/docs/0.4.0-incubating/tutorials/basic-4">Atomic Write Records</a></li> + <li><a href="/docs/0.4.0-incubating/tutorials/basic-5">Tailing Read Records</a></li> + <li><a href="/docs/0.4.0-incubating/tutorials/basic-6">Rewind Read Records</a></li> + <li role="separator" class="divider"></li> + <li class="dropdown-header"><strong>Messaging</strong></li> + + + <li> + <a href="/docs/0.4.0-incubating/tutorials/messaging-1.html"> + Write records to partitioned streams + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/tutorials/messaging-2.html"> + Write records to multiple streams (load balancer) + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/tutorials/messaging-3.html"> + At-least-once Processing + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/tutorials/messaging-4.html"> + Exact-Once Processing + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/tutorials/messaging-5.html"> + Implement a kafka-like pub/sub system + </a> + </li> + + <li role="separator" class="divider"></li> + <li class="dropdown-header"><strong>Replicated State Machines</strong></li> + + + <li> + <a href="/docs/0.4.0-incubating/tutorials/replicatedstatemachines.html"> + Build replicated state machines + </a> + </li> + + <li role="separator" class="divider"></li> + <li class="dropdown-header"><strong>Analytics</strong></li> + <li><a href="/docs/0.4.0-incubating/tutorials/analytics-mapreduce">Process log streams using MapReduce</a></li> + </ul> + </li> + </ul> + </div><!--/.nav-collapse --> + </div> +</nav> + + +<link rel="stylesheet" href=""> + + + <div class="container" role="main"> + + <div class="row"> + + <!-- +Licensed to the Apache Software Foundation (ASF) under one +or more contributor license agreements. See the NOTICE file +distributed with this work for additional information +regarding copyright ownership. The ASF licenses this file +to you under the Apache License, Version 2.0 (the +"License"); you may not use this file except in compliance +with the License. You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, +software distributed under the License is distributed on an +"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +KIND, either express or implied. See the License for the +specific language governing permissions and limitations +under the License. +--> + + +<div class="row"> + <!-- Sub Navigation --> + <div class="col-sm-3"> + <ul id="sub-nav"> + + + + + <li><a href="/docs/0.4.0-incubating/admin_guide/main.html" class="">Admin Guide</a> + + <ul> + + + <li> + <a href="/docs/0.4.0-incubating/admin_guide/operations.html" class=""> + Operations + </a> + + <ul> + + </ul> + + </li> + + + <li> + <a href="/docs/0.4.0-incubating/deployment/cluster.html" class=""> + Cluster Setup + </a> + + <ul> + + </ul> + + </li> + + + <li> + <a href="/docs/0.4.0-incubating/deployment/global-cluster.html" class=""> + Global Cluster Setup + </a> + + <ul> + + </ul> + + </li> + + + <li> + <a href="/docs/0.4.0-incubating/admin_guide/performance.html" class=""> + Performance Tuning + </a> + + <ul> + + </ul> + + </li> + + + <li> + <a href="/docs/0.4.0-incubating/admin_guide/loadtest.html" class=""> + Load Test + </a> + + <ul> + + </ul> + + </li> + + + <li> + <a href="/docs/0.4.0-incubating/admin_guide/hardware.html" class=""> + Hardware + </a> + + <ul> + + </ul> + + </li> + + + <li> + <a href="/docs/0.4.0-incubating/admin_guide/monitoring.html" class=""> + Monitoring + </a> + + <ul> + + </ul> + + </li> + + + <li> + <a href="/docs/0.4.0-incubating/admin_guide/zookeeper.html" class="active"> + ZooKeeper + </a> + + <ul> + + </ul> + + </li> + + + <li> + <a href="/docs/0.4.0-incubating/admin_guide/bookkeeper.html" class=""> + BookKeeper + </a> + + <ul> + + </ul> + + </li> + + </ul> + + </li> + + </ul> + </div> + <!-- Main --> + <div class="col-sm-9"> + <!-- Top anchor --> + <a href="#top"></a> + + <!-- Breadcrumbs above the main heading --> + <ol class="breadcrumb"> + + + + + + + + + + + + + <li><a href="/docs/0.4.0-incubating/admin_guide/main.html">Admin Guide</a></li> + + + <li class="active">ZooKeeper</li> + </ol> + + <div class="text"> + <!-- Content --> + <p>To run a DistributedLog ensemble, you'll need a set of Zookeeper +nodes. There is no constraints on the number of Zookeeper nodes you +need. One node is enough to run your cluster, but for reliability +purpose, you should run at least 3 nodes.</p> +<div class="section" id="version"> +<h2>Version</h2> +<p>DistributedLog leverages zookeepr <cite>multi</cite> operations for metadata updates. +So the minimum version of zookeeper is 3.4.*. We recommend to run stable +zookeeper version <cite>3.4.8</cite>.</p> +</div> +<div class="section" id="run-zookeeper-from-distributedlog-source"> +<h2>Run ZooKeeper from distributedlog source</h2> +<p>Since <cite>zookeeper</cite> is one of the dependency of <cite>distributedlog-service</cite>. You could simply +run <cite>zookeeper</cite> servers using same set of scripts provided in <cite>distributedlog-service</cite>. +In the following sections, we will describe how to run zookeeper using the scripts provided +in <cite>distributedlog-service</cite>.</p> +<div class="section" id="build"> +<h3>Build</h3> +<p>First of all, build DistributedLog:</p> +<figure class="code"><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class="line-number">1</span> +</pre></td><td class="code"><pre><code class="bash"><span class="line"><span></span>$ mvn clean install -DskipTests +</span></code></pre></td></tr></table></div></figure></div> +<div class="section" id="configuration"> +<h3>Configuration</h3> +<p>The configuration file <cite>zookeeper.conf.template</cite> under <cite>distributedlog-service/conf</cite> is a template of +production configuration to run a zookeeper node. Most of the configuration settings are good for +production usage. You might need to configure following settings according to your environment and +hardware platform.</p> +<div class="section" id="ensemble"> +<h4>Ensemble</h4> +<p>You need to configure the zookeeper servers form this ensemble as below:</p> +<pre class="literal-block"> +server.1=127.0.0.1:2710:3710:participant;0.0.0.0:2181 +</pre> +<p>Please check <a class="reference external" href="http://zookeeper.apache.org/";>zookeeper</a> website for more configurations.</p> +</div> +<div class="section" id="disks"> +<h4>Disks</h4> +<p>You need to configure following settings according to the disk layout of your hardware. +It is recommended to put <cite>dataLogDir</cite> under a separated disk from others for performance.</p> +<pre class="literal-block"> +# the directory where the snapshot is stored. +dataDir=/tmp/data/zookeeper + +# where txlog are written +dataLogDir=/tmp/data/zookeeper/txlog +</pre> +</div> +</div> +<div class="section" id="run"> +<h3>Run</h3> +<p>As <cite>zookeeper</cite> is shipped as part of <cite>distributedlog-service</cite>, you could use the <cite>dlog-daemon.sh</cite> +script to start <cite>zookeeper</cite> as daemon thread.</p> +<p>Start the zookeeper:</p> +<figure class="code"><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class="line-number">1</span> +</pre></td><td class="code"><pre><code class="bash"><span class="line"><span></span>$ ./distributedlog-service/bin/dlog-daemon.sh start zookeeper /path/to/zookeeper.conf +</span></code></pre></td></tr></table></div></figure><p>Stop the zookeeper:</p> +<figure class="code"><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class="line-number">1</span> +</pre></td><td class="code"><pre><code class="bash"><span class="line"><span></span>$ ./distributedlog-service/bin/dlog-daemon.sh stop zookeeper +</span></code></pre></td></tr></table></div></figure><p>Please check <a class="reference external" href="http://zookeeper.apache.org/";>zookeeper</a> website for more details.</p> +</div> +</div> + + + </div> + </div> +</div> + + + + </div> + + + <hr> + <div class="row"> + <div class="col-xs-12"> + <footer> + <p class="text-center">© Copyright 2016 + <a href="http://www.apache.org";>The Apache Software Foundation.</a> All Rights Reserved. + </p> + <p class="text-center"> + <a href="/docs/0.4.0-incubating/feed.xml">RSS Feed</a> + </p> + </footer> + </div> + </div> + <!-- container div end --> +</div> + + + <script> + (function () { + 'use strict'; + anchors.options.placement = 'right'; + anchors.add(); + })(); +</script> + + </body> + +</html>
http://git-wip-us.apache.org/repos/asf/incubator-distributedlog/blob/ef7245e8/content/docs/0.4.0-incubating/basics/introduction.html ---------------------------------------------------------------------- diff --git a/content/docs/0.4.0-incubating/basics/introduction.html b/content/docs/0.4.0-incubating/basics/introduction.html new file mode 100644 index 0000000..ec740ae --- /dev/null +++ b/content/docs/0.4.0-incubating/basics/introduction.html @@ -0,0 +1,724 @@ +<!DOCTYPE html> +<html lang="en"> + + <head> + <meta charset="utf-8"> + <meta http-equiv="X-UA-Compatible" content="IE=edge"> + <meta name="viewport" content="width=device-width, initial-scale=1"> + + <title>Apache DistributedLog (incubating)</title> + <meta name="description" content="Apache DistributedLog is an high performance replicated log. +"> + + <link rel="stylesheet" href="/docs/0.4.0-incubating/styles/site.css"> + <link rel="stylesheet" href="/docs/0.4.0-incubating/css/theme.css"> + <!-- JQuery --> + <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js";></script> + <script src="/docs/0.4.0-incubating/js/bootstrap.min.js"></script> + <link rel="canonical" href="http://distributedlog.incubator.apache.org/docs/0.4.0-incubating/basics/introduction.html"; data-proofer-ignore> + <link rel="alternate" type="application/rss+xml" title="Apache DistributedLog (incubating)" href="http://distributedlog.incubator.apache.org/docs/0.4.0-incubating/feed.xml";> + <!-- Font Awesome --> + <script src="//cdnjs.cloudflare.com/ajax/libs/anchor-js/3.2.0/anchor.min.js"></script> + <!-- Google Analytics --> + <script> + (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){ + (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o), + m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m) + })(window,document,'script','https://www.google-analytics.com/analytics.js','ga'); + + ga('create', 'UA-83870961-1', 'auto'); + ga('send', 'pageview'); + </script> + <!-- End Google Analytics --> + <link rel="shortcut icon" type="image/x-icon" href="/images/favicon.ico"> +</head> + + + <body role="document"> + + +<nav class="navbar navbar-default navbar-fixed-top"> + <div class="container"> + <div class="navbar-header"> + <a href="/" class="navbar-brand" > + <img alt="Brand" style="height: 28px" src="/docs/0.4.0-incubating/images/distributedlog_logo_navbar.png"> + </a> + <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar"> + <span class="sr-only">Toggle navigation</span> + <span class="icon-bar"></span> + <span class="icon-bar"></span> + <span class="icon-bar"></span> + </button> + </div> + <div id="navbar" class="navbar-collapse collapse"> + <ul class="nav navbar-nav"> + <!-- Overview --> + <li><a href="/docs/0.4.0-incubating/">V0.4.0</a></li> + <!-- Concepts --> + <li><a href="/docs/0.4.0-incubating/basics/introduction">Concepts</a></li> + <!-- Quick Start --> + <li> + <a href="/docs/0.4.0-incubating/start" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">Start<span class="caret"></span></a> + <ul class="dropdown-menu" role="menu"> + + + <li> + <a href="/docs/0.4.0-incubating/start/building.html"> + Build DistributedLog from Source + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/start/download.html"> + Download Releases + </a> + </li> + + <li role="separator" class="divider"></li> + <li class="dropdown-header"><strong>Quickstart</strong></li> + + + <li> + <a href="/docs/0.4.0-incubating/start/quickstart.html"> + Setup & Run Example + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/tutorials/basic-1.html"> + API - Write Records (via core library) + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/tutorials/basic-2.html"> + API - Write Records (via write proxy) + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/tutorials/basic-5.html"> + API - Read Records + </a> + </li> + + <li role="separator" class="divider"></li> + <li class="dropdown-header"><strong>Deployment</strong></li> + + + <li> + <a href="/docs/0.4.0-incubating/deployment/cluster.html"> + Cluster Setup + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/deployment/global-cluster.html"> + Global Cluster Setup + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/deployment/docker.html"> + Docker + </a> + </li> + + </ul> + </li> + <!-- API --> + <li> + <a href="/docs/0.4.0-incubating/start" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">API<span class="caret"></span></a> + <ul class="dropdown-menu" role="menu"> + <li><a href="/docs/0.4.0-incubating/api/java">Java</a></li> + </ul> + </li> + <!-- User Guide --> + <li class="dropdown"> + <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">User Guide<span class="caret"></span></a> + <ul class="dropdown-menu"> + + + <li> + <a href="/docs/0.4.0-incubating/basics/introduction.html"> + Introduction + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/user_guide/considerations/main.html"> + Considerations + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/user_guide/architecture/main.html"> + Architecture + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/user_guide/api/main.html"> + API + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/user_guide/configuration/main.html"> + Configuration + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/user_guide/design/main.html"> + Detail Design + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/user_guide/globalreplicatedlog/main.html"> + Global Replicated Log + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/user_guide/implementation/main.html"> + Implementation + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/user_guide/references/main.html"> + References + </a> + </li> + + </ul> + </li> + <!-- Admin Guide --> + <li class="dropdown"> + <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Admin Guide<span class="caret"></span></a> + <ul class="dropdown-menu"> + <li><a href="/docs/0.4.0-incubating/deployment/cluster">Cluster Setup</a></li> + + + <li> + <a href="/docs/0.4.0-incubating/admin_guide/operations.html"> + Operations + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/admin_guide/performance.html"> + Performance Tuning + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/admin_guide/loadtest.html"> + Load Test + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/admin_guide/hardware.html"> + Hardware + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/admin_guide/monitoring.html"> + Monitoring + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/admin_guide/zookeeper.html"> + ZooKeeper + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/admin_guide/bookkeeper.html"> + BookKeeper + </a> + </li> + + </ul> + </li> + <!-- Tutorials --> + <li class="dropdown"> + <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Tutorials<span class="caret"></span></a> + <ul class="dropdown-menu"> + <li class="dropdown-header"><strong>Basic</strong></li> + <li><a href="/docs/0.4.0-incubating/tutorials/basic-1">Write Records (via Core Library)</a></li> + <li><a href="/docs/0.4.0-incubating/tutorials/basic-2">Write Records (via Write Proxy)</a></li> + <li><a href="/docs/0.4.0-incubating/tutorials/basic-3">Write Records to multiple streams</a></li> + <li><a href="/docs/0.4.0-incubating/tutorials/basic-4">Atomic Write Records</a></li> + <li><a href="/docs/0.4.0-incubating/tutorials/basic-5">Tailing Read Records</a></li> + <li><a href="/docs/0.4.0-incubating/tutorials/basic-6">Rewind Read Records</a></li> + <li role="separator" class="divider"></li> + <li class="dropdown-header"><strong>Messaging</strong></li> + + + <li> + <a href="/docs/0.4.0-incubating/tutorials/messaging-1.html"> + Write records to partitioned streams + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/tutorials/messaging-2.html"> + Write records to multiple streams (load balancer) + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/tutorials/messaging-3.html"> + At-least-once Processing + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/tutorials/messaging-4.html"> + Exact-Once Processing + </a> + </li> + + <li> + <a href="/docs/0.4.0-incubating/tutorials/messaging-5.html"> + Implement a kafka-like pub/sub system + </a> + </li> + + <li role="separator" class="divider"></li> + <li class="dropdown-header"><strong>Replicated State Machines</strong></li> + + + <li> + <a href="/docs/0.4.0-incubating/tutorials/replicatedstatemachines.html"> + Build replicated state machines + </a> + </li> + + <li role="separator" class="divider"></li> + <li class="dropdown-header"><strong>Analytics</strong></li> + <li><a href="/docs/0.4.0-incubating/tutorials/analytics-mapreduce">Process log streams using MapReduce</a></li> + </ul> + </li> + </ul> + </div><!--/.nav-collapse --> + </div> +</nav> + + +<link rel="stylesheet" href=""> + + + <div class="container" role="main"> + + <div class="row"> + + <!-- +Licensed to the Apache Software Foundation (ASF) under one +or more contributor license agreements. See the NOTICE file +distributed with this work for additional information +regarding copyright ownership. The ASF licenses this file +to you under the Apache License, Version 2.0 (the +"License"); you may not use this file except in compliance +with the License. You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, +software distributed under the License is distributed on an +"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +KIND, either express or implied. See the License for the +specific language governing permissions and limitations +under the License. +--> + + +<div class="row"> + <!-- Sub Navigation --> + <div class="col-sm-3"> + <ul id="sub-nav"> + + + + + <li><a href="/docs/0.4.0-incubating/user_guide/main.html" class="">User Guide</a> + + <ul> + + + <li> + <a href="/docs/0.4.0-incubating/basics/introduction.html" class="active"> + Introduction + </a> + + <ul> + + </ul> + + </li> + + + <li> + <a href="/docs/0.4.0-incubating/user_guide/considerations/main.html" class=""> + Considerations + </a> + + <ul> + + </ul> + + </li> + + + <li> + <a href="/docs/0.4.0-incubating/user_guide/architecture/main.html" class=""> + Architecture + </a> + + <ul> + + </ul> + + </li> + + + <li> + <a href="/docs/0.4.0-incubating/user_guide/api/main.html" class=""> + API + </a> + + <ul> + + + <li> + <a href="/docs/0.4.0-incubating/user_guide/api/core.html" class="active"> + Core Library API + </a> + </li> + + + <li> + <a href="/docs/0.4.0-incubating/user_guide/api/proxy.html" class="active"> + Proxy Client API + </a> + </li> + + + <li> + <a href="/docs/0.4.0-incubating/user_guide/api/practice.html" class="active"> + Best Practise + </a> + </li> + + </ul> + + </li> + + + <li> + <a href="/docs/0.4.0-incubating/user_guide/configuration/main.html" class=""> + Configuration + </a> + + <ul> + + + <li> + <a href="/docs/0.4.0-incubating/user_guide/configuration/core.html" class="active"> + Core Library Configuration + </a> + </li> + + + <li> + <a href="/docs/0.4.0-incubating/user_guide/configuration/proxy.html" class="active"> + Write Proxy Configuration + </a> + </li> + + + <li> + <a href="/docs/0.4.0-incubating/user_guide/configuration/client.html" class="active"> + Client Configuration + </a> + </li> + + + <li> + <a href="/docs/0.4.0-incubating/user_guide/configuration/perlog.html" class="active"> + Per Stream Configuration + </a> + </li> + + </ul> + + </li> + + + <li> + <a href="/docs/0.4.0-incubating/user_guide/design/main.html" class=""> + Detail Design + </a> + + <ul> + + </ul> + + </li> + + + <li> + <a href="/docs/0.4.0-incubating/user_guide/globalreplicatedlog/main.html" class=""> + Global Replicated Log + </a> + + <ul> + + </ul> + + </li> + + + <li> + <a href="/docs/0.4.0-incubating/user_guide/implementation/main.html" class=""> + Implementation + </a> + + <ul> + + + <li> + <a href="/docs/0.4.0-incubating/user_guide/implementation/storage.html" class="active"> + Storage + </a> + </li> + + </ul> + + </li> + + + <li> + <a href="/docs/0.4.0-incubating/user_guide/references/main.html" class=""> + References + </a> + + <ul> + + + <li> + <a href="/docs/0.4.0-incubating/user_guide/references/metrics.html" class="active"> + Metrics + </a> + </li> + + + <li> + <a href="/docs/0.4.0-incubating/user_guide/references/features.html" class="active"> + Available Features + </a> + </li> + + </ul> + + </li> + + </ul> + + </li> + + </ul> + </div> + <!-- Main --> + <div class="col-sm-9"> + <!-- Top anchor --> + <a href="#top"></a> + + <!-- Breadcrumbs above the main heading --> + <ol class="breadcrumb"> + + + + + + + + + + + + + <li><a href="/docs/0.4.0-incubating/user_guide/main.html">User Guide</a></li> + + + <li class="active">Introduction</li> + </ol> + + <div class="text"> + <!-- Content --> + <div class="contents topic" id="distributedlog-overview"> +<p class="topic-title first">DistributedLog Overview</p> +<ul class="simple"> +<li><a class="reference internal" href="#introduction" id="id1">Introduction</a><ul> +<li><a class="reference internal" href="#logs" id="id2">Logs</a><ul> +<li><a class="reference internal" href="#log-records" id="id3">Log Records</a></li> +<li><a class="reference internal" href="#log-segments" id="id4">Log Segments</a></li> +<li><a class="reference internal" href="#namespaces" id="id5">Namespaces</a></li> +</ul> +</li> +<li><a class="reference internal" href="#writers" id="id6">Writers</a></li> +<li><a class="reference internal" href="#readers" id="id7">Readers</a></li> +<li><a class="reference internal" href="#fan-in-and-fan-out" id="id8">Fan-in and Fan-out</a></li> +<li><a class="reference internal" href="#guarantees" id="id9">Guarantees</a></li> +</ul> +</li> +</ul> +</div> +<div class="section" id="introduction"> +<h2><a class="toc-backref" href="#id1">Introduction</a></h2> +<p>DistributedLog (DL) is a high performance replicated log service. +It offers durability, replication and strong consistency, which provides a fundamental building block +for building reliable distributed systems, e.g replicated-state-machines, general pub/sub systems, +distributed databases, distributed queues and etc.</p> +<p>DistributedLog maintains sequences of records in categories called <em>Logs</em> (aka <em>Log Streams</em>). +The processes that write records to a DL log are <em>writers</em>, while the processes that read +from logs and process the records are <em>readers</em>.</p> +<div class="figure align-center"> +<img alt="../images/softwarestack.png" src="../images/softwarestack.png" /> +<p class="caption">Figure 1. DistributedLog Software Stack</p> +</div> +<div class="section" id="logs"> +<h3><a class="toc-backref" href="#id2">Logs</a></h3> +<p>A <strong>log</strong> is an ordered, immutable sequence of <em>log records</em>.</p> +<div class="figure align-center"> +<img alt="../images/datamodel.png" src="../images/datamodel.png" /> +<p class="caption">Figure 2. Anatomy of a log stream</p> +</div> +<div class="section" id="log-records"> +<h4><a class="toc-backref" href="#id3">Log Records</a></h4> +<p>Each <strong>log record</strong> is a sequence of bytes. +<strong>Log records</strong> are written sequentially into a <em>log stream</em>, and will be assigned with +a unique sequence number <em>called</em> <strong>DLSN</strong> (DistributedLog Sequence Number). Besides <em>DLSN</em>, +applications could assign its own sequence number while constructing log records. The +application defined sequence number is called <strong>TransactionID</strong> (<em>txid</em>). Either <em>DLSN</em> +or <em>TransactionID</em> could be used for positioning readers to start reading from a specific +<em>log record</em>.</p> +</div> +<div class="section" id="log-segments"> +<h4><a class="toc-backref" href="#id4">Log Segments</a></h4> +<p>A <strong>log</strong> is broken down into <em>segments</em>, which each log segment contains its subset of +records. <strong>Log segments</strong> are distributed and stored in a log segment store (e.g Apache BookKeeper). +DistributedLog rolls the log segments based on configured rolling policy - either a configurable +period of time (e.g. every 2 hours) or a configurable maximum size (e.g. every 128MB). +So the data of logs will be divided into equal-sized <em>log segments</em> and distributed evenly +across log segment storage nodes. It allows the log to scale beyond a size that will fit on +a single server and also spread read traffic among the cluster.</p> +<p>The data of logs will either be kept forever until application <em>explicitly</em> truncates or be retained +for a configurable period of time. <strong>Explicit Truncation</strong> is useful for building replicated +state machines such as distributed databases. They usually require strong controls over when +the data could be truncated. <strong>Time-based Retention</strong> is useful for real-time analytics. They only +care about the data within a period of time.</p> +</div> +<div class="section" id="namespaces"> +<h4><a class="toc-backref" href="#id5">Namespaces</a></h4> +<p>The <em>log streams</em> belong to same organization are usually categorized and managed under +a <strong>namespace</strong>. A DL <strong>namespace</strong> is basically for applications to locate where the +<em>log streams</em> are. Applications could <em>create</em> and <em>delete</em> streams under a namespace, +and also be able to <em>truncate</em> a stream to given sequence number (either <em>DLSN</em> or <em>TransactionID</em>).</p> +</div> +</div> +<div class="section" id="writers"> +<h3><a class="toc-backref" href="#id6">Writers</a></h3> +<p>Writers write data into the logs of their choice. All the records are +appended into the logs in order. The sequencing is done by the writer, +which means there is only one active writer for a log at a given time. +DL guarantees correctness when two writers attempt writing to +to a same log when network partition happens - via fencing mechanism +in log segment store.</p> +<p>The log writers are served and managed in a service tier called <em>Write Proxy</em>. +The <em>Write Proxy</em> is used for accepting fan-in writes from large number +of clients. Details on <strong>Fan-in and Fan-out</strong> can be found further into this doc.</p> +</div> +<div class="section" id="readers"> +<h3><a class="toc-backref" href="#id7">Readers</a></h3> +<p>Readers read records from the logs of their choice, starting from a provided +position. The provided position could be either <em>DLSN</em> or <em>TransactionID</em>. +The readers will read records in strict order from the logs. Different readers +could read records starting from different positions in a same log.</p> +<p>Unlike other pub/sub systems, DistributedLog doesn't record/manage readers' positions. +It leaves the tracking responsibility to applications, as different applications +might have different requirements on tracking and coordinating positions. It is hard +to get it right with a single approach. For example, distributed databases might store +the reader positions along with SSTables, so they would resume applying transactions +from the positions stored in SSTables. Tracking reader positions could easily be done +in application level using various stores (e.g. ZooKeeper, file system, or key/value stores).</p> +<p>The log records could be cached in a service tier called <em>Read Proxy</em>, to serve +a large number of readers.</p> +</div> +<div class="section" id="fan-in-and-fan-out"> +<h3><a class="toc-backref" href="#id8">Fan-in and Fan-out</a></h3> +<p>The core of DistributedLog supports single-writer, multiple-readers semantics. The service layer +built on top of the <em>DistributedLog Core</em> to support large scale of number of writers and readers. +The service layer includes <strong>Write Proxy</strong> and <strong>Read Proxy</strong>. <strong>Write Proxy</strong> manages +the writers of logs and fail over them when machines are failed. It allows supporting +which don't care about the log ownership by aggregating writes from many sources (aka <em>Fan-in</em>). +<strong>Read Proxy</strong> optimize reader path by caching log records in cases where hundreds or +thousands of readers are consuming a same log stream.</p> +</div> +<div class="section" id="guarantees"> +<h3><a class="toc-backref" href="#id9">Guarantees</a></h3> +<p>At a high level, DistributedLog gives the following guarantees:</p> +<ul class="simple"> +<li>Records written by a writer to a log will be appended in the order they are written. That is, if a record <em>R1</em> is written by same writer as a record <em>R2</em>, <em>R1</em> will have a smaller sequence number than <em>R2</em>.</li> +<li>Readers see records in the same order they were written to the log.</li> +<li>All records are persisted on disk before acknowledgments, to gurantee durability.</li> +<li>For a log with replication factor of N, DistributedLog tolerates up to N-1 server failures without losing any records.</li> +</ul> +<p>More details on these guarantees are given in the [design section](<a class="reference external" href="http://distributedlog.incubator.apache.org/docs/0.4.0-incubating/user_guide/design/main.html";>http://distributedlog.incubator.apache.org/docs/0.4.0-incubating/user_guide/design/main.html</a>).</p> +</div> +</div> + + + </div> + </div> +</div> + + + + </div> + + + <hr> + <div class="row"> + <div class="col-xs-12"> + <footer> + <p class="text-center">© Copyright 2016 + <a href="http://www.apache.org";>The Apache Software Foundation.</a> All Rights Reserved. + </p> + <p class="text-center"> + <a href="/docs/0.4.0-incubating/feed.xml">RSS Feed</a> + </p> + </footer> + </div> + </div> + <!-- container div end --> +</div> + + + <script> + (function () { + 'use strict'; + anchors.options.placement = 'right'; + anchors.add(); + })(); +</script> + + </body> + +</html> http://git-wip-us.apache.org/repos/asf/incubator-distributedlog/blob/ef7245e8/content/docs/0.4.0-incubating/css/main.css ---------------------------------------------------------------------- diff --git a/content/docs/0.4.0-incubating/css/main.css b/content/docs/0.4.0-incubating/css/main.css new file mode 100644 index 0000000..1fb1692 --- /dev/null +++ b/content/docs/0.4.0-incubating/css/main.css @@ -0,0 +1,457 @@ +/** + * Reset some basic elements + */ +body, h1, h2, h3, h4, h5, h6, +p, blockquote, pre, hr, +dl, dd, ol, ul, figure { + margin: 0; + padding: 0; } + +/** + * Basic styling + */ +body { + font: 400 16px/1.5 "Helvetica Neue", Helvetica, Arial, sans-serif; + color: #111; + background-color: #fdfdfd; + -webkit-text-size-adjust: 100%; + -webkit-font-feature-settings: "kern" 1; + -moz-font-feature-settings: "kern" 1; + -o-font-feature-settings: "kern" 1; + font-feature-settings: "kern" 1; + font-kerning: normal; } + +/** + * Set `margin-bottom` to maintain vertical rhythm + */ +h1, h2, h3, h4, h5, h6, +p, blockquote, pre, +ul, ol, dl, figure, +.highlight { + margin-bottom: 15px; } + +/** + * Images + */ +img { + max-width: 100%; + vertical-align: middle; } + +/** + * Figures + */ +figure > img { + display: block; } + +figcaption { + font-size: 14px; } + +/** + * Lists + */ +ul, ol { + margin-left: 30px; } + +li > ul, +li > ol { + margin-bottom: 0; } + +/** + * Headings + */ +h1, h2, h3, h4, h5, h6 { + font-weight: 400; } + +/** + * Links + */ +a { + color: #2a7ae2; + text-decoration: none; } + a:visited { + color: #1756a9; } + a:hover { + color: #111; + text-decoration: underline; } + +/** + * Blockquotes + */ +blockquote { + color: #828282; + border-left: 4px solid #e8e8e8; + padding-left: 15px; + font-size: 18px; + letter-spacing: -1px; + font-style: italic; } + blockquote > :last-child { + margin-bottom: 0; } + +/** + * Code formatting + */ +pre, +code { + font-size: 15px; + border: 1px solid #e8e8e8; + border-radius: 3px; + background-color: #eef; } + +code { + padding: 1px 5px; } + +pre { + padding: 8px 12px; + overflow-x: auto; } + pre > code { + border: 0; + padding-right: 0; + padding-left: 0; } + +/** + * Wrapper + */ +.wrapper { + max-width: -webkit-calc(800px - (30px * 2)); + max-width: calc(800px - (30px * 2)); + margin-right: auto; + margin-left: auto; + padding-right: 30px; + padding-left: 30px; } + @media screen and (max-width: 800px) { + .wrapper { + max-width: -webkit-calc(800px - (30px)); + max-width: calc(800px - (30px)); + padding-right: 15px; + padding-left: 15px; } } + +/** + * Clearfix + */ +.wrapper:after, .footer-col-wrapper:after { + content: ""; + display: table; + clear: both; } + +/** + * Icons + */ +.icon > svg { + display: inline-block; + width: 16px; + height: 16px; + vertical-align: middle; } + .icon > svg path { + fill: #828282; } + +/** + * Site header + */ +.site-header { + border-top: 5px solid #424242; + border-bottom: 1px solid #e8e8e8; + min-height: 56px; + position: relative; } + +.site-title { + font-size: 26px; + font-weight: 300; + line-height: 56px; + letter-spacing: -1px; + margin-bottom: 0; + float: left; } + .site-title, .site-title:visited { + color: #424242; } + +.site-nav { + float: right; + line-height: 56px; } + .site-nav .menu-icon { + display: none; } + .site-nav .page-link { + color: #111; + line-height: 1.5; } + .site-nav .page-link:not(:last-child) { + margin-right: 20px; } + @media screen and (max-width: 600px) { + .site-nav { + position: absolute; + top: 9px; + right: 15px; + background-color: #fdfdfd; + border: 1px solid #e8e8e8; + border-radius: 5px; + text-align: right; } + .site-nav .menu-icon { + display: block; + float: right; + width: 36px; + height: 26px; + line-height: 0; + padding-top: 10px; + text-align: center; } + .site-nav .menu-icon > svg { + width: 18px; + height: 15px; } + .site-nav .menu-icon > svg path { + fill: #424242; } + .site-nav .trigger { + clear: both; + display: none; } + .site-nav:hover .trigger { + display: block; + padding-bottom: 5px; } + .site-nav .page-link { + display: block; + padding: 5px 10px; + margin-left: 20px; } + .site-nav .page-link:not(:last-child) { + margin-right: 0; } } + +/** + * Site footer + */ +.site-footer { + border-top: 1px solid #e8e8e8; + padding: 30px 0; } + +.footer-heading { + font-size: 18px; + margin-bottom: 15px; } + +.contact-list, +.social-media-list { + list-style: none; + margin-left: 0; } + +.footer-col-wrapper { + font-size: 15px; + color: #828282; + margin-left: -15px; } + +.footer-col { + float: left; + margin-bottom: 15px; + padding-left: 15px; } + +.footer-col-1 { + width: -webkit-calc(35% - (30px / 2)); + width: calc(35% - (30px / 2)); } + +.footer-col-2 { + width: -webkit-calc(20% - (30px / 2)); + width: calc(20% - (30px / 2)); } + +.footer-col-3 { + width: -webkit-calc(45% - (30px / 2)); + width: calc(45% - (30px / 2)); } + +@media screen and (max-width: 800px) { + .footer-col-1, + .footer-col-2 { + width: -webkit-calc(50% - (30px / 2)); + width: calc(50% - (30px / 2)); } + + .footer-col-3 { + width: -webkit-calc(100% - (30px / 2)); + width: calc(100% - (30px / 2)); } } +@media screen and (max-width: 600px) { + .footer-col { + float: none; + width: -webkit-calc(100% - (30px / 2)); + width: calc(100% - (30px / 2)); } } +/** + * Page content + */ +.page-content { + padding: 30px 0; } + +.page-heading { + font-size: 20px; } + +.post-list { + margin-left: 0; + list-style: none; } + .post-list > li { + margin-bottom: 30px; } + +.post-meta { + font-size: 14px; + color: #828282; } + +.post-link { + display: block; + font-size: 24px; } + +/** + * Posts + */ +.post-header { + margin-bottom: 30px; } + +.post-title { + font-size: 42px; + letter-spacing: -1px; + line-height: 1; } + @media screen and (max-width: 800px) { + .post-title { + font-size: 36px; } } + +.post-content { + margin-bottom: 30px; } + .post-content h2 { + font-size: 32px; } + @media screen and (max-width: 800px) { + .post-content h2 { + font-size: 28px; } } + .post-content h3 { + font-size: 26px; } + @media screen and (max-width: 800px) { + .post-content h3 { + font-size: 22px; } } + .post-content h4 { + font-size: 20px; } + @media screen and (max-width: 800px) { + .post-content h4 { + font-size: 18px; } } + +/** + * Syntax highlighting styles + */ +.highlight { + background: #fff; } + .highlighter-rouge .highlight { + background: #eef; } + .highlight .c { + color: #998; + font-style: italic; } + .highlight .err { + color: #a61717; + background-color: #e3d2d2; } + .highlight .k { + font-weight: bold; } + .highlight .o { + font-weight: bold; } + .highlight .cm { + color: #998; + font-style: italic; } + .highlight .cp { + color: #999; + font-weight: bold; } + .highlight .c1 { + color: #998; + font-style: italic; } + .highlight .cs { + color: #999; + font-weight: bold; + font-style: italic; } + .highlight .gd { + color: #000; + background-color: #fdd; } + .highlight .gd .x { + color: #000; + background-color: #faa; } + .highlight .ge { + font-style: italic; } + .highlight .gr { + color: #a00; } + .highlight .gh { + color: #999; } + .highlight .gi { + color: #000; + background-color: #dfd; } + .highlight .gi .x { + color: #000; + background-color: #afa; } + .highlight .go { + color: #888; } + .highlight .gp { + color: #555; } + .highlight .gs { + font-weight: bold; } + .highlight .gu { + color: #aaa; } + .highlight .gt { + color: #a00; } + .highlight .kc { + font-weight: bold; } + .highlight .kd { + font-weight: bold; } + .highlight .kp { + font-weight: bold; } + .highlight .kr { + font-weight: bold; } + .highlight .kt { + color: #458; + font-weight: bold; } + .highlight .m { + color: #099; } + .highlight .s { + color: #d14; } + .highlight .na { + color: #008080; } + .highlight .nb { + color: #0086B3; } + .highlight .nc { + color: #458; + font-weight: bold; } + .highlight .no { + color: #008080; } + .highlight .ni { + color: #800080; } + .highlight .ne { + color: #900; + font-weight: bold; } + .highlight .nf { + color: #900; + font-weight: bold; } + .highlight .nn { + color: #555; } + .highlight .nt { + color: #000080; } + .highlight .nv { + color: #008080; } + .highlight .ow { + font-weight: bold; } + .highlight .w { + color: #bbb; } + .highlight .mf { + color: #099; } + .highlight .mh { + color: #099; } + .highlight .mi { + color: #099; } + .highlight .mo { + color: #099; } + .highlight .sb { + color: #d14; } + .highlight .sc { + color: #d14; } + .highlight .sd { + color: #d14; } + .highlight .s2 { + color: #d14; } + .highlight .se { + color: #d14; } + .highlight .sh { + color: #d14; } + .highlight .si { + color: #d14; } + .highlight .sx { + color: #d14; } + .highlight .sr { + color: #009926; } + .highlight .s1 { + color: #d14; } + .highlight .ss { + color: #990073; } + .highlight .bp { + color: #999; } + .highlight .vc { + color: #008080; } + .highlight .vg { + color: #008080; } + .highlight .vi { + color: #008080; } + .highlight .il { + color: #099; } http://git-wip-us.apache.org/repos/asf/incubator-distributedlog/blob/ef7245e8/content/docs/0.4.0-incubating/css/theme.css ---------------------------------------------------------------------- diff --git a/content/docs/0.4.0-incubating/css/theme.css b/content/docs/0.4.0-incubating/css/theme.css new file mode 100644 index 0000000..c0dd5a4 --- /dev/null +++ b/content/docs/0.4.0-incubating/css/theme.css @@ -0,0 +1,21 @@ +body { + padding-top: 70px; + padding-bottom: 30px; + font-family: 'Roboto', sans-serif; +} + +.theme-dropdown .dropdown-menu { + position: static; + display: block; + margin-bottom: 20px; +} + +.theme-showcase > p > .btn { + margin: 5px 0; +} + +.theme-showcase .navbar .container { + width: auto; +} + +@import url(https://fonts.googleapis.com/css?family=Roboto:400,300);
