{"id":201604,"date":"2025-05-10T09:43:10","date_gmt":"2025-05-10T01:43:10","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201604\/"},"modified":"2025-05-10T09:43:10","modified_gmt":"2025-05-10T01:43:10","slug":"%e4%bd%bf%e7%94%a8redis%e7%bc%93%e5%ad%98%e6%97%b6%e9%ab%98%e6%95%88%e7%9a%84%e6%89%b9%e9%87%8f%e5%88%a0%e9%99%a4%e7%9a%84%e5%87%a0%e7%a7%8d%e6%96%b9%e6%a1%88","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201604\/","title":{"rendered":"\u4f7f\u7528Redis\u7f13\u5b58\u65f6\u9ad8\u6548\u7684\u6279\u91cf\u5220\u9664\u7684\u51e0\u79cd\u65b9\u6848"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u4f7f\u7528Redis\u7f13\u5b58\u65f6\u9ad8\u6548\u7684\u6279\u91cf\u5220\u9664\u7684\u51e0\u79cd\u65b9\u6848<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u4eca\u65e5\u4e0d\u80af\u57cb\u5934\uff0c\u660e\u65e5\u4f55\u4ee5\u62ac\u5934\uff01\u6bcf\u65e5\u4e00\u53e5\u52aa\u529b\u81ea\u5df1\u7684\u8bdd\u54c8\u54c8~\u54c8\u55bd\uff0c\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7<span style=\"color: #FF6600;font-family:\">\u300a\u4f7f\u7528Redis\u7f13\u5b58\u65f6\u9ad8\u6548\u7684\u6279\u91cf\u5220\u9664\u7684\u51e0\u79cd\u65b9\u6848\u300b<\/span>\uff0c\u4e3b\u8981\u5185\u5bb9\u662f\u8bb2\u89e3<span style=\"color: #FF6600;font-family:\">Redis\u6279\u91cf\u5220\u9664<\/span>\u7b49\u7b49\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u6536\u85cf\u6216\u8005\u6709\u66f4\u597d\u7684\u5efa\u8bae\u5728\u8bc4\u8bba\u63d0\u51fa\uff0c\u6211\u90fd\u4f1a\u8ba4\u771f\u770b\u7684\uff01\u5927\u5bb6\u4e00\u8d77\u8fdb\u6b65\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n<h2>\u524d\u56e0\u540e\u679c<\/h2>\n<p>\u4e4b\u524d\u6211\u4eec\u7684\u670d\u52a1\uff0c\u5728\u4e0a\u7ebf\u7684\u65f6\u5019\u53d1\u73b0\u6709\u4e00\u4e9b\u5927Key\u7684\u4f7f\u7528\u4e0d\u662f\u5f88\u89c4\u8303\uff0c\u7279\u522b\u662f\u6ca1\u6709\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\uff0c\u56e0\u6b64\u5bfc\u81f4redis\u4e2d\u5185\u5b58\u7684\u6570\u636e\u8d8a\u6765\u8d8a\u591a\uff0c\u76ee\u524dRedis\u8282\u70b9\u7684\u5185\u5b58\u5df2\u7ecf\u5feb\u6491\u4e0d\u4f4f\u4e86\u3002\u6240\u4ee5\u6839\u636e\u7f13\u5b58\u952e\u7684\u89c4\u5219\u53bb\u6279\u91cf\u5220\u9664\u8fd9\u4e9b\u6570\u636e\uff0c\u6bd4\u8f83\u5e38\u89c1\u7684\u5c31\u662f\u6309\u524d\u7f00\u53bb\u5220\u9664\u3002<\/p>\n<p>\u73b0\u5728\u7531\u4e8e\u4e0d\u5f97\u4ee5\u4e3a\u7684\u539f\u56e0\u8981\u5220\u9664\u8fd9\u51e0\u767e\u4e2aKey-Value\u7684\u6570\u636e\uff0c\u8fd9\u4e2a\u65f6\u5019\u6211\u4eec\u80af\u5b9a\u5c31\u8981\u628a\u7f13\u5b58\u952e\u5168\u90e8\u5220\u9664\u6389\u3002\u4e00\u822c\u60c5\u51b5\u4e0b\u5728Redis\u4e2d\u662f\u53ef\u4ee5\u5f88\u5bb9\u6613\u53bb\u5b9e\u73b0\u7684\u3002\u4f46\u662f\u5982\u679c\u5728\u4e0d\u963b\u585e\u4e1a\u52a1\u7684\u524d\u63d0\u4e0b\uff0c\u5e76\u4e14\u4ee5\u9ad8\u6548\u7684\u65b9\u5f0f\u8fdb\u884c\u6e05\u7406\u5185\u5b58\u6570\u636e\u3002\u5c31\u9700\u8981\u597d\u597d\u60f3\u60f3\u529e\u6cd5\u4e86\u3002<\/p>\n<h2>\u6279\u91cf\u5220\u9664redis\u6570\u636e\u65b9\u6cd5<\/h2>\n<h3>\u5229\u7528\u7684\u662fLinux\u7684xargs\u547d\u4ee4<\/h3>\n<p>\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7redis-cli\u7684\u6a21\u5f0f\uff0c\u8fdb\u884c\u8bbf\u95ee\u4e4b\u540e\u767b\u5f55\u5230\u4e86Redis-Server\u670d\u52a1\uff0c\u7531\u4e8e\u662f\u5fc5\u987b\u8981\u4f7f\u7528Linux\u7684xargs\u547d\u4ee4\uff0c\u6240\u4ee5\u5fc5\u987b\u8981\u8fde\u5e26\u6307\u4ee4\u5728Linux\u73af\u5883\uff0c\u800c\u4e0d\u80fd\u63d0\u524d\u901a\u8fc7redis-cli\u8fdb\u884c\u767b\u5f55\u5230redis-server\u670d\u52a1\u3002\u5426\u5219\u4f1a\u62a5\u9519\u8bf4\u200b<code>\u200bxargs\u200b<\/code>\u200b\u65e0\u6548\u3002<\/p>\n<pre>redis-cli -h [ip] -p [port ] -a [password] keys \"prefix*\" | xargs redis-cli -h 127.0.0.1 -p 6379 -a '123' del<\/pre>\n<p>\u4e0a\u9762\u7684\u6307\u4ee4\u4e3b\u8981\u7531\u4e09\u90e8\u5206\u8fde\u63a5\u7ec4\u6210\uff1a<\/p>\n<ul>\n<li>redis-cli -h [ip] -p [port ] -a [password]\uff1a\u4e3b\u8981\u9700\u8981\u7528\u4e8e\u767b\u5f55\u5230redis-cli\u7684\u53ea\u5904\u7406\u64cd\u4f5c\u3002<\/li>\n<li>keys &#8220;prefix*&#8221;\uff1a\u968f\u540e\u4e3b\u8981\u662f\u901a\u8fc7redis-cli\u7684\u547d\u4ee4\u8fdb\u884c keys\u6307\u4ee4\u8fdb\u884c\u5339\u914d\u67d0\u524d\u7f00\u76f8\u5173\u7684\u6570\u636e\u96c6\u5408\u3002<\/li>\n<li>| xargs redis-cli -h [ip] -p [port ] -a [password] del\uff1a\u4e3b\u8981\u662f\u901a\u8fc7\u7ba1\u9053\u7b26\u8fdb\u884c\u8fde\u63a5\uff0c\u4e4b\u540e\u518d\u8fdb\u884c\u8fde\u63a5redis-server\u670d\u52a1\uff0c\u4e4b\u540e\u8fdb\u884c\u5c06\u4e4b\u524d\u7684\u53c2\u6570\u4f20\u5165\u5230xargs\u4e4b\u540e\uff0c\u4f5c\u4e3adel\u7684\u53c2\u6570\u8fdb\u884c\u6267\u884c\u5220\u9664\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<h3>xargs\u6307\u4ee4<\/h3>\n<p>xargs\uff1a\u662f\u4e00\u6761Unix\u548c\u7c7bUnix\u64cd\u4f5c\u7cfb\u7edf\u7684\u5e38\u7528\u547d\u4ee4\uff1b\u5b83\u7684\u4f5c\u7528\u662f\u5c06\u53c2\u6570\u5217\u8868\u8f6c\u6362\u6210\u5c0f\u5757\u5206\u6bb5\u4f20\u9012\u7ed9\u5176\u4ed6\u547d\u4ee4\uff0c\u4ee5\u907f\u514d\u53c2\u6570\u5217\u8868\u8fc7\u957f\u7684\u95ee\u9898\u3002\u53ef\u5355\u72ec\u4f7f\u7528\uff0c\u4e5f\u53ef\u4f7f\u7528\u7ba1\u9053\u7b26\u3001\u91cd\u5b9a\u4f4d\u7b26\u7b49\u4e0e\u5176\u4ed6\u547d\u4ee4\u914d\u5408\u4f7f\u7528\u3002<\/p>\n<pre>xargs [ -p ] [ -t] [ -e[ EOFString ] ] [ -EEOFString ] [ -i[ ReplaceString ] ] [ -IReplaceString ] [ -l [ Number ] ] [ -L Number ] [ -n Number [ -x ] ] [ -s Size ] [ Command [ Argument ... ] ]<\/pre>\n<h3>\u547d\u4ee4\u683c\u5f0f<\/h3>\n<p>xargs\uff1a\u4e00\u822c\u662f\u548c\u7ba1\u9053\u4e00\u8d77\u4f7f\u7528\u3002<\/p>\n<pre>somecommand |xargs -item command<\/pre>\n<h3>\u53c2\u6570\uff1a<\/h3>\n<ul>\n<li>-a file \u4ece\u6587\u4ef6\u4e2d\u8bfb\u5165\u4f5c\u4e3a stdin<\/li>\n<li>-e flag \uff0c\u6ce8\u610f\u6709\u7684\u65f6\u5019\u53ef\u80fd\u4f1a\u662f-E\uff0cflag\u5fc5\u987b\u662f\u4e00\u4e2a\u4ee5\u7a7a\u683c\u5206\u9694\u7684\u6807\u5fd7\uff0c\u5f53xargs\u5206\u6790\u5230\u542b\u6709flag\u8fd9\u4e2a\u6807\u5fd7\u7684\u65f6\u5019\u5c31\u505c\u6b62\u3002<\/li>\n<li>-p \u5f53\u6bcf\u6b21\u6267\u884c\u4e00\u4e2aargument\u7684\u65f6\u5019\u8be2\u95ee\u4e00\u6b21\u7528\u6237\u3002<\/li>\n<li>-n num \u540e\u9762\u52a0\u6b21\u6570\uff0c\u8868\u793a\u547d\u4ee4\u5728\u6267\u884c\u7684\u65f6\u5019\u4e00\u6b21\u7528\u7684argument\u7684\u4e2a\u6570\uff0c\u9ed8\u8ba4\u662f\u7528\u6240\u6709\u7684\u3002<\/li>\n<li>-t \u8868\u793a\u5148\u6253\u5370\u547d\u4ee4\uff0c\u7136\u540e\u518d\u6267\u884c\u3002<\/li>\n<li>-i \u6216\u8005\u662f-I\uff0c\u8fd9\u5f97\u770blinux\u652f\u6301\u4e86\uff0c\u5c06xargs\u7684\u6bcf\u9879\u540d\u79f0\uff0c\u4e00\u822c\u662f\u4e00\u884c\u4e00\u884c\u8d4b\u503c\u7ed9 {}\uff0c\u53ef\u4ee5\u7528 {} \u4ee3\u66ff\u3002<\/li>\n<li>-r no-run-if-empty \u5f53xargs\u7684\u8f93\u5165\u4e3a\u7a7a\u7684\u65f6\u5019\u5219\u505c\u6b62xargs\uff0c\u4e0d\u7528\u518d\u53bb\u6267\u884c\u4e86\u3002<\/li>\n<li>-s num \u547d\u4ee4\u884c\u7684\u6700\u5927\u5b57\u7b26\u6570\uff0c\u6307\u7684\u662f xargs \u540e\u9762\u90a3\u4e2a\u547d\u4ee4\u7684\u6700\u5927\u547d\u4ee4\u884c\u5b57\u7b26\u6570\u3002<\/li>\n<li>-L num \u4ece\u6807\u51c6\u8f93\u5165\u4e00\u6b21\u8bfb\u53d6 num \u884c\u9001\u7ed9 command \u547d\u4ee4\u3002<\/li>\n<li>-l \u540c -L\u3002<\/li>\n<li>-d delim \u5206\u9694\u7b26\uff0c\u9ed8\u8ba4\u7684xargs\u5206\u9694\u7b26\u662f\u56de\u8f66\uff0cargument\u7684\u5206\u9694\u7b26\u662f\u7a7a\u683c\uff0c\u8fd9\u91cc\u4fee\u6539\u7684\u662fxargs\u7684\u5206\u9694\u7b26\u3002<\/li>\n<li>-x exit\u7684\u610f\u601d\uff0c\u4e3b\u8981\u662f\u914d\u5408-s\u4f7f\u7528\u3002\u3002<\/li>\n<li>-P \u4fee\u6539\u6700\u5927\u7684\u8fdb\u7a0b\u6570\uff0c\u9ed8\u8ba4\u662f1\uff0c\u4e3a0\u65f6\u5019\u4e3aas many as it can \uff0c\u8fd9\u4e2a\u4f8b\u5b50\u6211\u6ca1\u6709\u60f3\u5230\uff0c\u5e94\u8be5\u5e73\u65f6\u90fd\u7528\u4e0d\u5230\u7684\u5427\u3002<\/li>\n<\/ul>\n<h3>\u4f7f\u7528Lua\u811a\u672c\u5220\u9664\u767e\u4e07\/\u5343\u4e07\u7ea7\u7684key<\/h3>\n<p>\u5982\u679c\u4ee5\u4e0axargs\u65b9\u6cd5\u5220\u9664\u4e0d\u4e86\u7684\uff0c\u6216\u8005\u6267\u884cxargs\u547d\u4ee4\u62a5\u9519\u7684\u3002\u90a3\u4e48\u53ef\u4ee5\u4f7f\u7528lua\u811a\u672c\uff0credis\u6709\u5185\u7f6e\u7684lua\u89e3\u91ca\u5668\u3002\u5728lua\u811a\u672c\u4e2d\u4f7f\u7528scan\u626b\u63cfkey\uff0c\u5e76\u4f9d\u6b21\u5220\u9664\uff0c\u5f53\u5220\u9664\u6570\u91cf\u8fbe\u52301\u4e07\u65f6\uff0c\u811a\u672c\u76f4\u63a5\u8fd4\u56de\uff0c\u5b8c\u6210\u672c\u6b21\u8c03\u7528\uff0c\u5982\u679c\u5220\u9664\u7684key\u6570\u91cf\u5927\u4e8e0\uff0c\u5c31\u5faa\u73af\u8c03\u7528\u811a\u672c\u8fdb\u884c\u5220\u9664\u3002<\/p>\n<pre>Warning: a NUL character occurred in the input. It cannot be passed through in the argument list. Did you mean to use the --null option?<\/pre>\n<h3>Lua\u811a\u672c\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>Lua\u662f\u4e00\u79cd\u8f7b\u91cf\u5c0f\u5de7\u7684\u811a\u672c\u8bed\u8a00\uff0c\u7528\u6807\u51c6C\u8bed\u8a00\u7f16\u5199\u5e76\u4ee5\u6e90\u4ee3\u7801\u5f62\u5f0f\u5f00\u653e\uff0c \u5176\u8bbe\u8ba1\u76ee\u7684\u662f\u4e3a\u4e86\u5d4c\u5165\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u4ece\u800c\u4e3a\u5e94\u7528\u7a0b\u5e8f\u63d0\u4f9b\u7075\u6d3b\u7684\u6269\u5c55\u548c\u5b9a\u5236\u529f\u80fd\u3002\u5176\u8bbe\u8ba1\u76ee\u7684\u662f\u4e3a\u4e86\u5d4c\u5165\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u4ece\u800c\u4e3a\u5e94\u7528\u7a0b\u5e8f\u63d0\u4f9b\u7075\u6d3b\u7684\u6269\u5c55\u548c\u5b9a\u5236\u529f\u80fd\u3002<\/p>\n<h3>Lua\u811a\u672c\u7684\u6307\u4ee4\u683c\u5f0f<\/h3>\n<p>\u6709\u5174\u8da3\u7684\u5c0f\u4f19\u4f34\uff0c\u53ef\u4ee5\u53c2\u8003\uff1a\u200b\u200b<\/p>\n<pre>EVAL script numkeys key [key \u2026] arg [arg \u2026]<\/pre>\n<ul>\n<li>script:\u5f85\u6267\u884c\u7684\u811a\u672c\u6587\u4ef6<\/li>\n<li>numkeys:key\u7684\u4e2a\u6570<\/li>\n<\/ul>\n<h3>Lua\u811a\u672c\u6267\u884c\u53c2\u6570<\/h3>\n<ul>\n<li>\u200b<code>\u200b[key \u2026]\u200b<\/code>\u200b:\u5bf9\u5e94\u7684key\uff0c\u53ef\u4ee5\u662f\u4e00\u4e2a\uff0c\u53ef\u4ee5\u662f\u591a\u4e2a<\/li>\n<li>\u200b<code>\u200b[arg \u2026]\u200b<\/code>\u200b:\u4e0ekey\u5bf9\u5e94\u7684\u503c\uff0c\u53ef\u4ee5\u662f\u4e00\u4e2a\uff0c\u53ef\u4ee5\u662f\u591a\u4e2a<\/li>\n<\/ul>\n<h3>Lua\u83b7\u53d6\u4f20\u53c2\u6570\u636e<\/h3>\n<p>Lua\u7684\u4e0b\u8868\u7d22\u5f15\u662f\u4ece1\u5f00\u59cb\u7684\uff0ckey\u7684\u83b7\u53d6\u65b9\u5f0f\uff0cKEYS[\u4e0b\u6807\u7d22\u5f15]\uff0c\u5982KEYS[1],\u53d6\u7b2c\u4e00\u4e2a\u503c\uff0c\u503c\u7684\u83b7\u53d6\uff0cARGV[1]<\/p>\n<h3>\u793a\u4f8b<\/h3>\n<pre>eval \u201creturn {KEYS[1],KEYS[2],ARGV[1],ARGV[2]}\u201d 2 key1 key2 first second<\/pre>\n<h3>Lua\u811a\u672c\u7684\u6848\u4f8b\uff08keys\uff09<\/h3>\n<ul>\n<li>\u83b7\u53d6\u4f20\u5165\u7684\u9700\u8981\u6279\u91cf\u5220\u9664\u7684key\u7684\u524d\u7f00<\/li>\n<li>\u8bb0\u4f4f lua\u7684\u4e0b\u6807\u7d22\u5f15\u662f\u4ece1\u5f00\u59cb \u4e0d\u662f0 \u4e0d\u662f0 \u4e0d\u662f0<\/li>\n<\/ul>\n<pre>local key = KEYS[1]\nif( key ~= nil) then\n--\u8fd9\u91cc\u901a\u8fc7keys\u67e5\u8be2\u51fa\u6240\u6709\u7b26\u5408\u6761\u4ef6\u7684\u6570\u636e\nlocal dataList = redis.call('keys',KEYS[1])\n--\u5224\u65ad\u662f\u5426\u627e\u5230\u6570\u636e\nif(dataList ~= nil) then\n--\u5faa\u73af\u5220\u9664\nfor i=1,#dataList,1 do\nredis.call('del',dataList[i])\nend\n--\u8fd4\u56de\u5220\u9664\u7684\u884c\u6570\nreturn #dataList\nelse\nreturn 0\nend\nelse\nreturn 0\nend<\/pre>\n<p>\u63a8\u8350\u4f7f\u7528scan\u83b7\u53d6\u6570\u636e\u5220\u9664\uff0c\u6211\u4eec\u77e5\u9053redis\u662f\u4e00\u4e2a\u5355\u7ebf\u7a0b\u7684\uff0c\u5f53\u6211\u4eec\u5e93\u91cc\u9762\u5b58\u5728\u5927\u91cf\u6570\u636e\u7684\u65f6\u5019\uff0c\u4f7f\u7528keys * \u7684\u65b9\u5f0f\u5339\u914d\u6570\u636e\u7684\u65f6\u5019\uff0c\u53ef\u80fd\u9700\u8981\u597d\u51e0\u79d2\u624d\u80fd\u5904\u7406\u5b8c\uff0c\u90a3\u4e48\u5728\u8fd9\u4e2a\u51e0\u79d2\u7684\u65f6\u95f4\u91cc\u662f\u5904\u4e8e\u7ebf\u7a0b\u963b\u585e\u7684\uff0c\u5176\u4ed6\u6240\u6709\u7684redis\u64cd\u4f5c\u90fd\u662f\u5904\u4e8e\u7b49\u5f85\u72b6\u6001\uff0c\u8fd9\u6837\u5bf9\u7cfb\u7edf\u7684\u53ef\u7528\u6027\u662f\u6709\u5f71\u54cd\u7684\uff0c\u56e0\u6b64\uff0c\u8fd9\u91cc\u4f7f\u7528scan\u7684\u65b9\u5f0f\u5339\u914d\u6570\u636e\u3002<\/p>\n<h3>scan\u4ecb\u7ecd<\/h3>\n<pre>SCAN cursor [MATCH pattern] [COUNT count]<\/pre>\n<p>SCAN \u547d\u4ee4\u662f\u4e00\u4e2a\u57fa\u4e8e\u6e38\u6807\u7684\u8fed\u4ee3\u5668\uff08cursor based iterator\uff09\uff1a SCAN \u547d\u4ee4\u6bcf\u6b21\u88ab\u8c03\u7528\u4e4b\u540e\uff0c \u90fd\u4f1a\u5411\u7528\u6237\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u6e38\u6807\uff0c \u7528\u6237\u5728\u4e0b\u6b21\u8fed\u4ee3\u65f6\u9700\u8981\u4f7f\u7528\u8fd9\u4e2a\u65b0\u6e38\u6807\u4f5c\u4e3a SCAN \u547d<br \/>\u4ee4\u7684\u6e38\u6807\u53c2\u6570\uff0c \u4ee5\u6b64\u6765\u5ef6\u7eed\u4e4b\u524d\u7684\u8fed\u4ee3\u8fc7\u7a0b\u3002<\/p>\n<h3>Lua\u811a\u672c\u7684\u6848\u4f8b\uff08scan\uff09<\/h3>\n<pre>local limitSize = tonumber(ARGV[1]) -- \u6700\u591a\u5220\u9664\u591a\u5c11\u4e2akey\nlocal batchSize = limitSize -- scan\u4e00\u6b21\u6700\u591a\u626b\u63cf\u591a\u5c11\u4e2akey\nif (batchSize &gt; 10000) then -- \u4e00\u6b21\u626b\u63cf\u4e0d\u80fd\u8d85\u8fc71w\u6761\nbatchSize = 10000\nend\nlocal function scan(key)\nlocal cursor = 0\nlocal keynum = 0\nrepeat\nlocal res = redis.call(\"scan\", cursor, \"match\", key, 'COUNT', batchSize)\nif (res ~= nil and #res &gt;= 0) then\nredis.replicate_commands()\ncursor = tonumber(res[1])\nlocal ks = res[2]\nlocal size = #ks\nfor i=1,size,1 do\nredis.call(\"del\", tostring(ks[i]))\nkeynum = keynum + 1\nif (keynum &gt;= limitSize) then -- \u5df2\u7ecf\u5220\u9664\u4e86\u6307\u5b9a\u6570\u91cf\u7684key, \u8fd4\u56de\nreturn keynum\nend\nend\nend\nuntil (cursor \n<p>\u5f53 SCAN \u547d\u4ee4\u7684\u6e38\u6807\u53c2\u6570\u88ab\u8bbe\u7f6e\u4e3a 0 \u65f6\uff0c \u670d\u52a1\u5668\u5c06\u5f00\u59cb\u4e00\u6b21\u65b0\u7684\u8fed\u4ee3\uff0c \u800c\u5f53\u670d\u52a1\u5668\u5411\u7528\u6237\u8fd4\u56de\u503c\u4e3a 0 \u7684\u6e38\u6807\u65f6\uff0c \u8868\u793a\u8fed\u4ee3\u5df2\u7ed3\u675f\u3002<\/p>\n<p>\u901a\u4fd7\u70b9\u7406\u89e3\u5c31\u662f\uff0c\u57fa\u4e8e\u6e38\u6807\u7684\u8fed\u4ee3\u5668redis\u4f1a\u6162\u6162\u4e00\u6b21\u6b21\u7684\u5c06\u6570\u636e\u8fd4\u56de\u56de\u6765\uff0c\u4ece\u800c\u9632\u6b62\u7ebf\u7a0b\u963b\u585e\u3002<\/p>\n<p>\u6b64\u5916\u8fd8\u6709\u4e00\u4e2a\u5c0f\u8d34\u58eb\u5c31\u662f\u53ef\u4ee5\u4f7f\u7528UNLINK\u5220\u9664\uff0c\u533a\u522b\u4e8edel\u7684\u662f\u8fd9\u4e2a\u662f\u5f02\u6b65\u6267\u884c\u7684\uff0c\u8fd9\u6761\u6307\u4ee4\u8981\u7248\u672c\u5927\u4e8e4.0.0 \u5c0f\u4e8e4.0.0\u5c31\u4f7f\u7528del<\/p>\n<pre>redis.call(\"UNLINK\",key)<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528Redis\u7f13\u5b58\u65f6\u9ad8\u6548\u7684\u6279\u91cf\u5220&#46;&#46;&#46;<\/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-201604","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201604","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=201604"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201604\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201604"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201604"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201604"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}