forked from huangzworks/redis
-
Notifications
You must be signed in to change notification settings - Fork 0
/
slaveof.html
160 lines (137 loc) · 7.04 KB
/
slaveof.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>SLAVEOF — Redis 命令参考</title>
<link rel="stylesheet" href="../_static/pyramid.css" type="text/css" />
<link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
<script type="text/javascript">
var DOCUMENTATION_OPTIONS = {
URL_ROOT: '../',
VERSION: '2.8',
COLLAPSE_INDEX: false,
FILE_SUFFIX: '.html',
HAS_SOURCE: true
};
</script>
<script type="text/javascript" src="../_static/jquery.js"></script>
<script type="text/javascript" src="../_static/underscore.js"></script>
<script type="text/javascript" src="../_static/doctools.js"></script>
<link rel="top" title="Redis 命令参考" href="../index.html" />
<link rel="up" title="Server（服务器）" href="index.html" />
<link rel="next" title="SLOWLOG" href="slowlog.html" />
<link rel="prev" title="SHUTDOWN" href="shutdown.html" />
<!--[if lte IE 6]>
<link rel="stylesheet" href="../_static/ie6.css" type="text/css" media="screen" charset="utf-8" />
<![endif]-->
</head>
<body>
<div class="related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../genindex.html" title="General Index"
accesskey="I">index</a></li>
<li class="right" >
<a href="slowlog.html" title="SLOWLOG"
accesskey="N">next</a> |</li>
<li class="right" >
<a href="shutdown.html" title="SHUTDOWN"
accesskey="P">previous</a> |</li>
<li><a href="../index.html">Redis 命令参考</a> »</li>
<li><a href="index.html" accesskey="U">Server（服务器）</a> »</li>
</ul>
</div>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body">
<div class="section" id="slaveof">
<span id="id1"></span><h1>SLAVEOF<a class="headerlink" href="#slaveof" title="Permalink to this headline">¶</a></h1>
<dl class="function">
<dt>
<code class="descname">SLAVEOF host port</code></dt>
<dd></dd></dl>
<p><a class="reference internal" href="#slaveof">SLAVEOF</a> 命令用于在 Redis 运行时动态地修改复制(replication)功能的行为。</p>
<p>通过执行 <code class="docutils literal"><span class="pre">SLAVEOF</span> <span class="pre">host</span> <span class="pre">port</span></code> 命令，可以将当前服务器转变为指定服务器的从属服务器(slave server)。</p>
<p>如果当前服务器已经是某个主服务器(master server)的从属服务器，那么执行 <code class="docutils literal"><span class="pre">SLAVEOF</span> <span class="pre">host</span> <span class="pre">port</span></code> 将使当前服务器停止对旧主服务器的同步，丢弃旧数据集，转而开始对新主服务器进行同步。</p>
<p>另外，对一个从属服务器执行命令 <code class="docutils literal"><span class="pre">SLAVEOF</span> <span class="pre">NO</span> <span class="pre">ONE</span></code> 将使得这个从属服务器关闭复制功能，并从从属服务器转变回主服务器，原来同步所得的数据集<em>不会</em>被丢弃。</p>
<p>利用『 <code class="docutils literal"><span class="pre">SLAVEOF</span> <span class="pre">NO</span> <span class="pre">ONE</span></code> 不会丢弃同步所得数据集』这个特性，可以在主服务器失败的时候，将从属服务器用作新的主服务器，从而实现无间断运行。</p>
<dl class="docutils">
<dt><strong>可用版本：</strong></dt>
<dd>>= 1.0.0</dd>
<dt><strong>时间复杂度：</strong></dt>
<dd><div class="first last line-block">
<div class="line"><code class="docutils literal"><span class="pre">SLAVEOF</span> <span class="pre">host</span> <span class="pre">port</span></code> ，O(N)， <code class="docutils literal"><span class="pre">N</span></code> 为要同步的数据数量。</div>
<div class="line"><code class="docutils literal"><span class="pre">SLAVEOF</span> <span class="pre">NO</span> <span class="pre">ONE</span></code> ， O(1) 。</div>
</div>
</dd>
<dt><strong>返回值：</strong></dt>
<dd>总是返回 <code class="docutils literal"><span class="pre">OK</span></code> 。</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre>redis> SLAVEOF 127.0.0.1 6379
OK
redis> SLAVEOF NO ONE
OK
</pre></div>
</div>
</div>
<div class="section" id="discuss">
<h2>
讨论
<a class="headerlink" href="#discuss" title="永久链接至标题">¶</a>
</h2>
<div id="disqus_thread"></div>
<script type="text/javascript">
/* * * CONFIGURATION VARIABLES: EDIT BEFORE PASTING INTO YOUR WEBPAGE * * */
var disqus_shortname = 'redis-command-cn'; // required: replace example with your forum shortname
/* * * DON'T EDIT BELOW THIS LINE * * */
(function() {
var dsq = document.createElement('script'); dsq.type = 'text/javascript'; dsq.async = true;
dsq.src = '//' + disqus_shortname + '.disqus.com/embed.js';
(document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(dsq);
})();
</script>
<noscript>Please enable JavaScript to view the <a href="http://disqus.com/?ref_noscript">comments powered by Disqus.</a></noscript>
<a href="http://disqus.com" class="dsq-brlink">comments powered by <span class="logo-disqus">Disqus</span></a>
</div>
<div id="sponser">
<h2>赞助商</h2>
<p>我们正在寻找赞助商，有意对这个网站进行赞助的朋友请联系 [email protected] 。</p>
</div>
</div>
</div>
</div>
<div class="clearer"></div>
</div>
<div class="related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../genindex.html" title="General Index"
>index</a></li>
<li class="right" >
<a href="slowlog.html" title="SLOWLOG"
>next</a> |</li>
<li class="right" >
<a href="shutdown.html" title="SHUTDOWN"
>previous</a> |</li>
<li><a href="../index.html">Redis 命令参考</a> »</li>
<li><a href="index.html" >Server（服务器）</a> »</li>
</ul>
</div>
<div class="footer">
© Copyright 2015, Redis.
Created using <a href="http://sphinx.pocoo.org/">Sphinx</a> 1.3.3.
</div>
<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','//www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-53959484-7', 'auto');
ga('send', 'pageview');
</script>
</body>
</html>