blocks|key|1900046|text|在这里根据@mu+無回答。我已经写了一个缓存转储脚本。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1900047|该脚本转储memcached服务器的所有内容。它是在Ubuntu12.04和本地主机memcached上测试的，所以你的进度可能会有所不同。|1900048|#!/usr/bin/env+bash

echo+'stats+items'++\
%7C+nc+localhost+11211++\
%7C+grep+-oe+':[0-9]*:'++\
%7C+grep+-oe+'[0-9]*'++\
%7C+sort++\
%7C+uniq++\
%7C+xargs+-L1+-I{}+bash+-c+'echo+"stats+cachedump+{}+1000"+%7C+nc+localhost+11211'|code-block|syntax|javascript|1900049|它的作用是遍历所有缓存片，并打印每个缓存片的1000个条目。|1900050|请注意此脚本的某些限制，例如，它可能无法扩展到5+5GB的缓存服务器。但它对于在本地机器上进行调试很有用。|1900051|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/users/1860929/mu-%25E7%2584%25A1^0|5|5|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|11|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|12|8|@]|9|@]|C|$]]|$1|M|3|N|5|6|7|13|8|@]|9|@]|C|$]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|C|$]]]|P|$Q|$5|R|S|T|C|$U|V]]]]

Base on <a href="https://stackoverflow.com/users/1860929/mu-%E7%84%A1">@mu 無</a> answer here. I've written a cache dump script.

The script dumps all the content of a memcached server. It's tested with Ubuntu 12.04 and a localhost memcached, so your milage may vary.

<pre><code>#!/usr/bin/env bash

echo 'stats items' \
| nc localhost 11211 \
| grep -oe ':[0-9]*:' \
| grep -oe '[0-9]*' \
| sort \
| uniq \
| xargs -L1 -I{} bash -c 'echo "stats cachedump {} 1000" | nc localhost 11211'
</code></pre>

What it does, it goes through all the cache slabs and print 1000 entries of each.

Please be aware of certain limits of this script i.e. it may not scale for a 5GB cache server for example. But it's useful for debugging purposes on a local machine.

blocks|key|1900115|text|最简单的方法是使用python-memcached-stats包https://github.com/abstatic/python-memcached-stats|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1900116|keys()方法应该可以让您开始工作了。|1900117|示例：|1900118|from+memcached_stats+import+MemcachedStats
mem+=+MemcachedStats()

mem.keys()
['key-1',
+'key-2',
+'key-3',
+...+]|code-block|syntax|javascript|1900119|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/abstatic/python-memcached-stats^0|W|1E|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|6|7|Y|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|Z|8|@]|9|@]|C|$]]|$1|H|3|I|5|J|7|10|8|@]|9|@]|C|$K|L]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]]]

The easiest way is to use python-memcached-stats package, <a href="https://github.com/abstatic/python-memcached-stats" rel="noreferrer">https://github.com/abstatic/python-memcached-stats</a>

The keys() method should get you going.

Example -

<pre><code>from memcached_stats import MemcachedStats
mem = MemcachedStats()

mem.keys()
['key-1',
 'key-2',
 'key-3',
 ... ]
</code></pre>

blocks|key|1686700|text|如果您安装了PHP+&+PHP-memcached，则可以运行|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1686701|$+php+-r+'$c+=+new+Memcached();+$c->addServer("localhost",+11211);+var_dump(+$c->getAllKeys()+);'|code-block|syntax|javascript|1686702|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If you have PHP &amp; PHP-memcached installed, you can run

<pre><code>$ php -r '$c = new Memcached(); $c-&gt;addServer("localhost", 11211); var_dump( $c-&gt;getAllKeys() );'
</code></pre>

blocks|key|1900247|text|我使用的是Java的spyMemcached，并使用了下面的代码。它是基于Anshul+Goyal's+answer的|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1900248|@Autowired
@Qualifier("initMemcachedClient")
private+MemcachedClient+memcachedClient;

public+List<String>+getCachedKeys(){
++++Set<Integer>+slabIds+=+new+HashSet<>();
++++Map<SocketAddress,+Map<String,+String>>+stats;
++++List<String>+keyNames+=+new+ArrayList<>();

++++//+Gets+all+the+slab+IDs
++++stats+=+memcachedClient.getStats("items");
++++stats.forEach((socketAddress,+value)+->+{
++++++++System.out.println("Socket+address:+"%2BsocketAddress.toString());
++++++++value.forEach((propertyName,+propertyValue)+->+{
++++++++++++slabIds.add(Integer.parseInt(propertyName.split(":")[1]));
++++++++});
++++});

++++//+Gets+all+keys+in+each+slab+ID+and+adds+in+List+keyNames
++++slabIds.forEach(slabId+->+{
++++++++Map<SocketAddress,+Map<String,+String>>+keyStats+=+memcachedClient.getStats("cachedump+"%2BslabId%2B"+0");
++++++++keyStats.forEach((socketAddress,+value)+->+{
++++++++++++value.forEach((propertyName,+propertyValue)+->+{
++++++++++++++++keyNames.add(propertyName);
++++++++++++});
++++++++});
++++});

++++System.out.println("number+of+keys:+"%2BkeyNames.size());
++++return+keyNames;
}|code-block|syntax|javascript|1900249|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/users/1860929/anshul-goyal^0|11|L|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

I was using Java's spyMemcached, and used this code. It is based on <a href="https://stackoverflow.com/users/1860929/anshul-goyal">Anshul Goyal's answer</a>
<pre><code>@Autowired
@Qualifier(&quot;initMemcachedClient&quot;)
private MemcachedClient memcachedClient;

public List&lt;String&gt; getCachedKeys(){
 Set&lt;Integer&gt; slabIds = new HashSet&lt;&gt;();
 Map&lt;SocketAddress, Map&lt;String, String&gt;&gt; stats;
 List&lt;String&gt; keyNames = new ArrayList&lt;&gt;();

 // Gets all the slab IDs
 stats = memcachedClient.getStats(&quot;items&quot;);
 stats.forEach((socketAddress, value) -&gt; {
 System.out.println(&quot;Socket address: &quot;+socketAddress.toString());
 value.forEach((propertyName, propertyValue) -&gt; {
 slabIds.add(Integer.parseInt(propertyName.split(&quot;:&quot;)[1]));
 });
 });

 // Gets all keys in each slab ID and adds in List keyNames
 slabIds.forEach(slabId -&gt; {
 Map&lt;SocketAddress, Map&lt;String, String&gt;&gt; keyStats = memcachedClient.getStats(&quot;cachedump &quot;+slabId+&quot; 0&quot;);
 keyStats.forEach((socketAddress, value) -&gt; {
 value.forEach((propertyName, propertyValue) -&gt; {
 keyNames.add(propertyName);
 });
 });
 });

 System.out.println(&quot;number of keys: &quot;+keyNames.size());
 return keyNames;
}
</code></pre>

How can I get all the keys set in my memcached instance(s)?

I tried googling, but didn't find much except that <code>PHP</code> supports a <a href="http://php.net/manual/en/memcached.getallkeys.php" rel="noreferrer"><code>getAllKeys</code> method</a>, which means it is actually possible to do this somehow. How can I get the same within a telnet session?

I have tried out all the retrieval related options mentioned in <a href="http://www.lzone.de/articles/memcached.htm" rel="noreferrer">memcached cheat sheet</a> and <a href="http://blog.elijaa.org/?post/2010/05/21/Memcached-telnet-command-summary" rel="noreferrer">Memcached telnet command summary</a>, but none of them work and I am at a loss to find the correct way to do this.

Note: I am currently doing this in development, so it can be assumed that there will be no issues due to new keys being set or other such race conditions happening, and the number of keys will also be limited.

get all keys set in memcached

如何在memcached实例中设置所有密钥？我试着用谷歌搜索，但除了PHP支持之外，什么也没找到，这意味着它实际上是可以以某种方式做到这一点的。怎样才能在telnet会话中获得相同的信息？我已经尝试了和中提到的所有与检索相关的选项，但它们都不起作用，我也找不到正确的方法来做到这一点。注意:我目前正在开发中这样做，所以可...

问获取memcached中设置的所有密钥
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