<html xmlns="http://www.w3.org/1999/xhtml"><head></head><body><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="2" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[2]</anchor-end> <dfn><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">MUID</anchor></dfn> は、 <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">MoCo</anchor> の「ほとんど<rubyb xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">固有<rt xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">unique</rt></rubyb>」な <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">ID</anchor> ですが、
<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">固有性</anchor>は高くありません。</p><refs xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:"><ul xmlns="http://www.w3.org/1999/xhtml"><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="1" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[1]</anchor-end> <cite xml:lang="en">DBIx-MoCo/MUID.pm at master · hatena/DBIx-MoCo · GitHub</cite> (<time>2015-01-13 22:39:32 +09:00</time> 版) <anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://github.com/hatena/DBIx-MoCo/blob/master/lib/DBIx/MoCo/MUID.pm">https://github.com/hatena/DBIx-MoCo/blob/master/lib/DBIx/MoCo/MUID.pm</anchor-external></li></ul></refs><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="3" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[3]</anchor-end> <anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="1" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;1</anchor-internal> によると次のような構造となっています。<figure class="packet"><dl><dt>width</dt><dd>32</dd></dl><ol><li>20 <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">IPv4アドレス</anchor>の末尾20ビット</li><li>36 <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">time_t</anchor> の<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">ミリ秒</anchor>版末尾36ビット</li><li>8 連番</li></ol></figure></p></body></html>