{"id":240,"date":"2011-07-05T07:33:24","date_gmt":"2011-07-04T23:33:24","guid":{"rendered":"http:\/\/www.cnmiss.cn\/?p=240"},"modified":"2011-07-05T07:37:28","modified_gmt":"2011-07-04T23:37:28","slug":"memcache%e5%88%86%e5%b8%83%e5%bc%8f%e9%83%a8%e7%bd%b2%e6%96%b9%e6%a1%88","status":"publish","type":"post","link":"https:\/\/www.cnmiss.cn\/?p=240","title":{"rendered":"Memcache\u5206\u5e03\u5f0f\u90e8\u7f72\u65b9\u6848(\u8f6c)"},"content":{"rendered":"

\u57fa\u7840\u73af\u5883<\/strong>
\n\u5176\u5b9e\u57fa\u4e8ePHP\u6269\u5c55\u7684Memcache\u5ba2\u6237\u7aef\u5b9e\u9645\u4e0a\u65e9\u5df2\u7ecf\u5b9e\u73b0\uff0c\u800c\u4e14\u975e\u5e38\u7a33\u5b9a\u3002\u5148\u89e3\u91ca\u4e00\u4e9b\u540d\u8bcd\uff0cMemcache\u662fdanga.com\u7684\u4e00\u4e2a\u5f00\u6e90\u9879\u76ee\uff0c\u53ef\u4ee5\u7c7b\u6bd4\u4e8eMySQL\u8fd9\u6837\u7684\u670d\u52a1\uff0c\u800cPHP\u6269\u5c55\u7684Memcache\u5b9e\u9645\u4e0a\u662f\u8fde\u63a5Memcache\u7684\u65b9\u5f0f\u3002<\/p>\n

\u9996\u5148\uff0c\u8fdb\u884cMemcache\u88ab\u5b89\u88c5\u5177\u4f53\u53ef\u67e5\u770b\uff1a
\nLinux\u4e0b\u7684Memcache\u5b89\u88c5<\/a>\uff1ahttp:\/\/www.ccvita.com\/257.html
\nWindows\u4e0b\u7684Memcache\u5b89\u88c5<\/a>\uff1ahttp:\/\/www.ccvita.com\/258.html\uff1b
\n\u5176\u6b21\uff0c\u8fdb\u884cPHP\u6269\u5c55\u7684\u5b89\u88c5\uff0c\u5b98\u65b9\u5730\u5740\u662fhttp:\/\/pecl.php.net\/package\/memcache
\n\u6700\u540e\uff0c\u542f\u52a8Memcache\u670d\u52a1\uff0c\u6bd4\u5982\u8fd9\u6837<\/p>\n

\/usr\/local\/bin\/memcached -d -p 11213 -u root -m 10 -c 1024 -t 8 -P \/tmp\/memcached.pid
\n\/usr\/local\/bin\/memcached -d -p 11214 -u root -m 10 -c 1024 -t 8 -P \/tmp\/memcached.pid
\n\/usr\/local\/bin\/memcached -d -p 11215 -u root -m 10 -c 1024 -t 8 -P \/tmp\/memcached.pid<\/p>\n

\u542f\u52a8\u4e09\u4e2a\u53ea\u4f7f\u752810M\u5185\u5b58\u4ee5\u65b9\u4fbf\u6d4b\u8bd5\u3002<\/p>\n

\u5206\u5e03\u5f0f\u90e8\u7f72<\/strong>
\nPHP\u7684PECL\u6269\u5c55\u4e2d\u7684memcache\u5b9e\u9645\u4e0a\u57282.0.0\u7684\u7248\u672c\u4e2d\u5c31\u5df2\u7ecf\u5b9e\u73b0\u591a\u670d\u52a1\u5668\u652f\u6301\uff0c\u73b0\u5728\u90fd\u5df2\u7ecf2.2.5\u4e86\u3002\u8bf7\u770b\u5982\u4e0b\u4ee3\u7801<\/p>\n

$memcache = new Memcache;
\n$memcache->addServer(‘localhost’, 11213);
\n$memcache->addServer(‘localhost’, 11214);
\n$memcache->addServer(‘localhost’, 11215);
\n$memStats = $memcache->getExtendedStats();
\nprint_r($memStats);<\/p>\n

\u901a\u8fc7\u4e0a\u4f8b\u5c31\u5df2\u7ecf\u5b9e\u73b0Memcache\u7684\u5206\u5e03\u5f0f\u90e8\u7f72\uff0c\u662f\u4e0d\u662f\u975e\u5e38\u7b80\u5355\u3002<\/p>\n

\u5206\u5e03\u5f0f\u7cfb\u7edf\u7684\u826f\u6027\u8fd0\u884c<\/strong>
\n\u5728Memcache\u7684\u5b9e\u9645\u4f7f\u7528\u4e2d\uff0c\u9047\u5230\u7684\u6700\u4e25\u91cd\u7684\u95ee\u9898\uff0c\u5c31\u662f\u5728\u589e\u51cf\u670d\u52a1\u5668\u7684\u65f6\u5019\uff0c\u4f1a\u5bfc\u81f4\u5927\u8303\u56f4\u7684\u7f13\u5b58\u4e22\u5931\uff0c\u4ece\u800c\u53ef\u80fd\u4f1a\u5f15\u5bfc\u6570\u636e\u5e93\u7684\u6027\u80fd\u74f6\u9888\uff0c\u4e3a\u4e86\u907f\u514d\u51fa\u73b0\u8fd9\u79cd\u60c5\u51b5\uff0c\u8bf7\u5148\u770bConsistent hashing<\/a>\u7b97\u6cd5\uff0c\u4e2d\u6587\u7684\u4ecb\u7ecd\u53ef\u4ee5\u53c2\u8003\u8fd9\u91cc<\/a>\uff0c\u901a\u8fc7\u5b58\u53d6\u65f6\u9009\u5b9a\u670d\u52a1\u5668\u7b97\u6cd5\u7684\u6539\u53d8\uff0c\u6765\u5b9e\u73b0\u3002<\/p>\n

\u4fee\u6539PHP\u7684Memcache\u6269\u5c55memcache.c\u7684\u6e90\u4ee3\u7801\u4e2d\u7684<\/p>\n

“memcache.hash_strategy” = standard<\/p>\n

\u4e3a<\/p>\n

“memcache.hash_strategy” = consistent<\/p>\n

\u91cd\u65b0\u7f16\u8bd1\uff0c\u8fd9\u65f6\u5019\u5c31\u662f\u4f7f\u7528Consistent hashing\u7b97\u6cd5\u6765\u5bfb\u627e\u670d\u52a1\u5668\u5b58\u53d6\u6570\u636e\u4e86\u3002<\/p>\n

\u6709\u6548\u6d4b\u8bd5\u6570\u636e\u8868\u660e\uff0c\u4f7f\u7528Consistent hashing\u53ef\u4ee5\u6781\u5927\u7684\u6539\u5584\u589e\u5220Memcache\u65f6\u7f13\u5b58\u5927\u8303\u56f4\u4e22\u5931\u7684\u60c5\u51b5\u3002
\nNonConsistentHash: 92% of lookups changed after adding a target to the existing 10
\nNonConsistentHash: 90% of lookups changed after removing 1 of 10 targets
\nConsistentHash: 6% of lookups changed after adding a target to the existing 10
\nConsistentHash: 9% of lookups changed after removing 1 of 10 targets<\/p>\n","protected":false},"excerpt":{"rendered":"

\u57fa\u7840\u73af\u5883 \u5176\u5b9e\u57fa\u4e8ePHP\u6269\u5c55\u7684Memcache\u5ba2\u6237\u7aef\u5b9e\u9645\u4e0a\u65e9\u5df2\u7ecf\u5b9e\u73b0\uff0c\u800c\u4e14\u975e\u5e38\u7a33 … \u7ee7\u7eed\u9605\u8bfb →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[41],"class_list":["post-240","post","type-post","status-publish","format-standard","hentry","category-xxbj","tag-memcache"],"_links":{"self":[{"href":"https:\/\/www.cnmiss.cn\/index.php?rest_route=\/wp\/v2\/posts\/240","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cnmiss.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cnmiss.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cnmiss.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cnmiss.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=240"}],"version-history":[{"count":0,"href":"https:\/\/www.cnmiss.cn\/index.php?rest_route=\/wp\/v2\/posts\/240\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.cnmiss.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=240"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cnmiss.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=240"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cnmiss.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=240"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}