{"id":201415,"date":"2025-05-10T08:34:26","date_gmt":"2025-05-10T00:34:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201415\/"},"modified":"2025-05-10T08:34:26","modified_gmt":"2025-05-10T00:34:26","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8redis%e9%87%8c%e6%8c%89%e6%a8%a1%e5%bc%8f%e5%88%a0%e9%99%a4%e6%95%b0%e6%8d%ae%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201415\/","title":{"rendered":"\u5982\u4f55\u5728Redis\u91cc\u6309\u6a21\u5f0f\u5220\u9664\u6570\u636e\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

\u5982\u4f55\u5728Redis\u91cc\u6309\u6a21\u5f0f\u5220\u9664\u6570\u636e\uff1f<\/h1>\n

<\/i>\u6536\u85cf<\/span> <\/p>\n

\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300a\u5982\u4f55\u5728Redis\u91cc\u6309\u6a21\u5f0f\u5220\u9664\u6570\u636e\uff1f\u300b\uff0c\u8986\u76d6\u4e86\u6570\u636e\u5e93\u7684\u5e38\u89c1\u57fa\u7840\u77e5\u8bc6\uff0c\u5176\u5b9e\u4e00\u4e2a\u8bed\u8a00\u7684\u5168\u90e8\u77e5\u8bc6\u70b9\u4e00\u7bc7\u6587\u7ae0\u662f\u4e0d\u53ef\u80fd\u8bf4\u5b8c\u7684\uff0c\u4f46\u5e0c\u671b\u901a\u8fc7\u8fd9\u4e9b\u95ee\u9898\uff0c\u8ba9\u8bfb\u8005\u5bf9\u81ea\u5df1\u7684\u638c\u63e1\u7a0b\u5ea6\u6709\u4e00\u5b9a\u7684\u8ba4\u8bc6(B \u6570)\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u66f4\u597d\u7684\u638c\u63e1\u5b83\u3002<\/p>\n

\u4e00\u53f0Redis\u670d\u52a1\u5668\u5728\u5f88\u77ed\u7684\u65f6\u95f4\u91cc\u6d88\u8017\u4e86\u51e0\u5341\u4e2aG\u7684\u5185\u5b58\uff0c\u6700\u7ec8\u56e0\u4e3aSWAP\u800c\u5b95\u673a\u3002\u56e0\u4e3a\u8fd9\u53f0\u670d\u52a1\u5668\u7684\u793e\u4f1a\u80cc\u666f\u6bd4\u8f83\u590d\u6742\uff0c\u6240\u4ee5\u4e00\u65f6\u65e0\u6cd5\u5224\u65ad\u72af\u7f6a\u5acc\u7591\u4eba\u5230\u5e95\u662f\u8c01\u3002<\/p>\n

\u6700\u5f00\u59cb\u7684\u76f4\u89c9\u662f\u8ba4\u4e3a\u80af\u5b9a\u6709\u4eba\u4fdd\u5b58\u4e86\u5927\u4f53\u79ef\u7684\u6570\u636e\uff0c\u4e8e\u662f\u95ee\u9898\u5c31\u53d8\u6210\u4e86\u627e\u51fa\u54ea\u4e9b\u952e\u5360\u7528\u7684\u7a7a\u95f4\u6bd4\u8f83\u5927\uff0cDBA\u540c\u4e8b\u7528\u4e86\u7b49\u5de5\u5177\u6765\u5206\u6790\u6570\u636e\u6587\u4ef6\u3002\u53ef\u60dc\u7684\u662f\u867d\u7136\u627e\u5230\u4e86\u4e00\u4e9b\u5927\u4f53\u79ef\u7684\u952e\uff0c\u4f46\u6700\u7ec8\u90fd\u6392\u9664\u4e86\u5acc\u7591\uff0c\u95ee\u9898\u4f3c\u4e4e\u9677\u5165\u4e86\u50f5\u5c40\u3002<\/p>\n

\u5728\u88ab\u76f4\u89c9\u5e26\u5165\u6b7b\u80e1\u540c\u4e4b\u540e\uff0c\u6211\u4eec\u5f00\u59cb\u8c03\u6574\u8c03\u67e5\u7684\u89d2\u5ea6\uff1a\u5373\u4fbf\u4e00\u4e2a\u952e\u672c\u8eab\u5360\u7528\u7684\u7a7a\u95f4\u5e76\u4e0d\u5927\uff0c\u4f46\u662f\u5982\u679c\u76f8\u540c\u6a21\u5f0f\u7684\u952e\u6570\u91cf\u5f88\u591a\u7684\u8bdd\uff0c\u90a3\u4e48\u5408\u8ba1\u8d77\u6765\u4e00\u6837\u4f1a\u5360\u7528\u5927\u91cf\u7a7a\u95f4\uff0c\u4e8e\u662f\u95ee\u9898\u5c31\u53d8\u6210\u4e86\u627e\u51fa\u54ea\u4e9b\u76f8\u540c\u6a21\u5f0f\u7684\u952e\u5360\u7528\u7684\u7a7a\u95f4\u6bd4\u8f83\u5927\u3002\u8fd9\u6b21\u6211\u4e0d\u60f3\u7528\u4ec0\u4e48\u5de5\u5177\uff0c\u800c\u662f\u6253\u7b97\u5728\u6d4b\u8bd5\u670d\u52a1\u5668\u4e0a\u4e00\u8fb9\u5220\u9664\u53ef\u7591\u952e\u4e00\u8fb9\u67e5\u770b\u5185\u5b58\u53d8\u5316\u60c5\u51b5\uff1a<\/p>\n

shell> \/path\/to\/redis-cli keys foo:* | xargs \/path\/to\/redis-cli del <\/p>\n

\u60b2\u50ac\u7684\u662f\u4e00\u8fd0\u884c\u8fd9\u4e2a\u547d\u4ee4\u670d\u52a1\u5668\u5c31\u6302\u4e86\uff01\u56e0\u4e3a\u6570\u636e\u592a\u591a\u4e86\uff0c\u6240\u4ee5\u53d7\u4e0d\u4e86\u3002\u6b64\u65f6\u5e94\u8be5\u4f7f\u7528\uff0c\u5b83\u6709\u6e38\u6807\u7684\u6982\u5ff5\uff0c\u6bcf\u6b21\u8fed\u4ee3\u53ea\u6d89\u53ca\u5f88\u5c11\u7684\u6570\u636e\u3002<\/p>\n

\u76f4\u63a5\u5728\u547d\u4ee4\u884c\u4f7f\u7528SCAN\u6709\u4e9b\u9ebb\u70e6\uff0c\u4e8e\u662f\u6211\u7528\u4e86\uff1a<\/p>\n

setOption(Redis::OPT_SCAN, Redis::SCAN_RETRY); $match = ‘foo:*’; $count = 10000; while ($keys = $redis->scan($it, $match, $count)) { $redis->del($keys); } ?> <\/p>\n

\u5728\u5220\u9664\u7684\u540c\u65f6\u6ce8\u610f\u76d1\u63a7\u5185\u5b58\u53d8\u5316\u60c5\u51b5\uff0c\u5c31\u80fd\u786e\u8ba4\u95ee\u9898\u4e86\uff1a<\/p>\n

shell> watch -d -n 1 ‘\/path\/to\/redis-cli info | grep memory’ <\/p>\n

\u81f3\u4e8e\u53ef\u7591\u952e\u7684\u83b7\u53d6\uff0c\u6211\u662f\u778e\u8499\u7684\uff0c\u7b80\u5355\u901a\u8fc7\u6216\u8005\u83b7\u53d6\u91c7\u6837\u6570\u636e\u5373\u53ef\uff0c\u53e6\u5916\u4ece\u6b64\u6848\u4f8b\u770b\uff0c\u76d1\u63a7\u952e\u603b\u6570\u7684\u53d8\u5316\u5e45\u5ea6\u662f\u5f88\u91cd\u8981\u7684\uff0c\u4ece\u91cc\u80fd\u62ff\u5230\u5b83\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5982\u4f55\u5728Redis\u91cc\u6309\u6a21\u5f0f\u5220\u9664\u6570\u636e...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-201415","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201415","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=201415"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201415\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201415"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201415"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201415"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}