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      <dt style="clear: both; float: left; font-weight: bold; width: 8em">Author</dt>
      <dd style="margin-left: 8.5em">YUKI Hiroshi &lt;shimo****@clear*****&gt;</dd>
      <dt style="clear: both; float: left; font-weight: bold; width: 8em">Date</dt>
      <dd style="margin-left: 8.5em">2014-04-28 11:31:03 +0900 (Mon, 28 Apr 2014)</dd>
      <dt style="clear: both; float: left; font-weight: bold; width: 8em">New Revision</dt>
      <dd style="margin-left: 8.5em"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d">4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d</a></dd>
      <dt style="clear: both; float: left; font-weight: bold; width: 8em">Message</dt>
      <dd style="margin-left: 8.5em"><pre style="border: 1px solid #aaa; font-family: Consolas, Menlo, &quot;Liberation Mono&quot;, Courier, monospace; line-height: 1.2; padding: 0.5em; width: auto">Add description about droonga engine</pre></dd>
      <dt style="clear: both; float: left; font-weight: bold; width: 8em">Modified files</dt>
      <dd style="margin-left: 8.5em">
        <ul>
          <li><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#diff-0">tutorial/groonga/index.md</a></li>
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<pre style="border: 0; font-family: Consolas, Menlo, &quot;Liberation Mono&quot;, Courier, monospace; line-height: 1.2; margin: 0; padding: 0.5em; white-space: normal; width: auto"><span class="diff-header" style="background-color: #eaf2f5; color: #999999; display: block; white-space: pre">  Modified: tutorial/groonga/index.md (+3 -3)</span>
<span class="diff-header-mark" style="background-color: #eaf2f5; color: #999999; display: block; white-space: pre">===================================================================</span>
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<pre style="border: 0; font-family: Consolas, Menlo, &quot;Liberation Mono&quot;, Courier, monospace; line-height: 1.2; margin: 0; padding: 0.5em; white-space: normal; width: auto"><span class="diff-line-number-hunk-header" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0L58">...</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0L59">59</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0L60">60</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0L61">61</a></span>
<span class="diff-line-number-deleted" style="background-color: #ffaaaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0L62">62</a></span>
<span class="diff-line-number-nothing" style="display: block; white-space: pre">&nbsp;</span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0L63">63</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0L64">64</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0L65">65</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0L66">66</a></span>
<span class="diff-line-number-deleted" style="background-color: #ffaaaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0L67">67</a></span>
<span class="diff-line-number-nothing" style="display: block; white-space: pre">&nbsp;</span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0L68">68</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0L69">69</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0L70">70</a></span>
<span class="diff-line-number-hunk-header" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0L106">...</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0L107">107</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0L108">108</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0L109">109</a></span>
<span class="diff-line-number-deleted" style="background-color: #ffaaaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0L110">110</a></span>
<span class="diff-line-number-nothing" style="display: block; white-space: pre">&nbsp;</span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0L111">111</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0L112">112</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0L113">113</a></span>
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<pre style="border: 0; font-family: Consolas, Menlo, &quot;Liberation Mono&quot;, Courier, monospace; line-height: 1.2; margin: 0; padding: 0.5em; white-space: normal; width: auto"><span class="diff-line-number-hunk-header" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0R58">...</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0R59">59</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0R60">60</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0R61">61</a></span>
<span class="diff-line-number-nothing" style="display: block; white-space: pre">&nbsp;</span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0R62">62</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0R63">63</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0R64">64</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0R65">65</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0R66">66</a></span>
<span class="diff-line-number-nothing" style="display: block; white-space: pre">&nbsp;</span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0R67">67</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0R68">68</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0R69">69</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0R70">70</a></span>
<span class="diff-line-number-hunk-header" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0R106">...</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0R107">107</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0R108">108</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0R109">109</a></span>
<span class="diff-line-number-nothing" style="display: block; white-space: pre">&nbsp;</span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0R110">110</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0R111">111</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0R112">112</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga.org/commit/4e31d28c87f6f4170f19d720fb3e0c3de1d1c73d#L0R113">113</a></span>
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<pre style="border: 0; font-family: Consolas, Menlo, &quot;Liberation Mono&quot;, Courier, monospace; line-height: 1.2; margin: 0; padding: 0.5em; white-space: normal; width: auto"><span class="diff-hunk-header" style="background-color: #eaf2f5; color: #999999; display: block; white-space: pre">@@ -59,12 +59,12 @@ <span class="diff-context" style="background-color: #ffffaa; color: #000000">Assume that you have two computers: `192.168.0.10` and `192.168.0.11`.</span></span>
<span class="diff-not-changed" style="display: block; white-space: pre">         # apt-get install -y ruby ruby-dev build-essential nodejs npm</span>
<span class="diff-not-changed" style="display: block; white-space: pre">     </span>
<span class="diff-not-changed" style="display: block; white-space: pre">  2. Install a gem package `droonga-engine`, *on each computer*.</span>
<span class="diff-deleted" style="background-color: #ffaaaa; color: #000000; display: block; white-space: pre">-    It is the core component.</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+    It is the core component provides most features of Droonga system.</span>
<span class="diff-not-changed" style="display: block; white-space: pre">     </span>
<span class="diff-not-changed" style="display: block; white-space: pre">         # gem install droonga-engine</span>
<span class="diff-not-changed" style="display: block; white-space: pre">     </span>
<span class="diff-not-changed" style="display: block; white-space: pre">  3. Install an npm package `droonga-http-server`, *on each computer*.</span>
<span class="diff-deleted" style="background-color: #ffaaaa; color: #000000; display: block; white-space: pre">-    It is the frontend component, and required to translate HTTP requests to Droonga's native one.</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+    It is the frontend component required to translate HTTP requests to Droonga's native one.</span>
<span class="diff-not-changed" style="display: block; white-space: pre">     </span>
<span class="diff-not-changed" style="display: block; white-space: pre">         # npm install -g droonga-http-server</span>
<span class="diff-not-changed" style="display: block; white-space: pre">     </span>
<span class="diff-hunk-header" style="background-color: #eaf2f5; color: #999999; display: block; white-space: pre">@@ -107,7 +107,7 @@ <span class="diff-context" style="background-color: #ffffaa; color: #000000">You can run Groonga as an HTTP server with the option `-d`, like:</span></span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-not-changed" style="display: block; white-space: pre"> On the other hand, you have to run two servers for each Droonga node to use your Droonga cluster via HTTP.</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-deleted" style="background-color: #ffaaaa; color: #000000; display: block; white-space: pre">-To start required services, run commands like following on each Droonga node:</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+To start them, run commands like following on each Droonga node:</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-not-changed" style="display: block; white-space: pre">     # cd ~/droonga</span>
<span class="diff-not-changed" style="display: block; white-space: pre">     # host=192.168.0.10</span>
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