{"id":201420,"date":"2025-05-10T11:17:12","date_gmt":"2025-05-10T03:17:12","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201420\/"},"modified":"2025-05-10T11:17:12","modified_gmt":"2025-05-10T03:17:12","slug":"%e9%98%bf%e9%87%8c%e5%b7%b4%e5%b7%b4%e5%ae%98%e6%96%b9%e6%9c%80%e6%96%b0redis%e5%bc%80%e5%8f%91%e8%a7%84%e8%8c%83%ef%bc%81","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201420\/","title":{"rendered":"\u963f\u91cc\u5df4\u5df4\u5b98\u65b9\u6700\u65b0Redis\u5f00\u53d1\u89c4\u8303\uff01"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u963f\u91cc\u5df4\u5df4\u5b98\u65b9\u6700\u65b0Redis\u5f00\u53d1\u89c4\u8303\uff01<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300a\u963f\u91cc\u5df4\u5df4\u5b98\u65b9\u6700\u65b0Redis\u5f00\u53d1\u89c4\u8303\uff01\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 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\u9009\u62e9\u9002\u5408\u7684\u6570\u636e\u7c7b\u578b<\/p>\n<p>\u4f8b\u5982\uff1a\u5b9e\u4f53\u7c7b\u578b(\u8981\u5408\u7406\u63a7\u5236\u548c\u4f7f\u7528\u6570\u636e\u7ed3\u6784\u5185\u5b58\u7f16\u7801\u4f18\u5316\u914d\u7f6e,\u4f8b\u5982ziplist\uff0c\u4f46\u4e5f\u8981\u6ce8\u610f\u8282\u7701\u5185\u5b58\u548c\u6027\u80fd\u4e4b\u95f4\u7684\u5e73\u8861) \u53cd\u4f8b\uff1a&nbsp;<\/p>\n<\/p>\n<ol>\n<li><span><span>set&nbsp;user:1:name&nbsp;tom&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>set&nbsp;<span>user:1:age<\/span><span>&nbsp;=<\/span><span>19<\/span><span>&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>set&nbsp;user:1:favor&nbsp;football&nbsp;<\/span><\/li>\n<\/ol>\n<p>\u6b63\u4f8b\uff1a&nbsp;<\/p>\n<\/p>\n<ol>\n<li><span><span>hmset&nbsp;user:1&nbsp;name&nbsp;tom&nbsp;<\/span><span>age<\/span><span>&nbsp;=<\/span><span>19<\/span><span>&nbsp;favor&nbsp;football&nbsp;<\/span><\/span><\/li>\n<\/ol>\n<p>\u63a7\u5236key\u7684\u751f\u547d\u5468\u671f<\/p>\n<p>redis\u4e0d\u662f\u5783\u573e\u6876\uff0c\u5efa\u8bae\u4f7f\u7528expire\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4(\u6761\u4ef6\u5141\u8bb8\u53ef\u4ee5\u6253\u6563\u8fc7\u671f\u65f6\u95f4\uff0c\u9632\u6b62\u96c6\u4e2d\u8fc7\u671f)\uff0c\u4e0d\u8fc7\u671f\u7684\u6570\u636e\u91cd\u70b9\u5173\u6ce8idletime\u3002<\/p>\n<p><strong>\u4e8c\u3001\u547d\u4ee4\u4f7f\u7528<\/strong><\/p>\n<p><strong>1\u3001O(N)\u547d\u4ee4\u5173\u6ce8N\u7684\u6570\u91cf<\/strong><\/p>\n<p>\u4f8b\u5982hgetall\u3001lrange\u3001smembers\u3001zrange\u3001sinter\u7b49\u5e76\u975e\u4e0d\u80fd\u4f7f\u7528\uff0c\u4f46\u662f\u9700\u8981\u660e\u786eN\u7684\u503c\u3002\u6709\u904d\u5386\u7684\u9700\u6c42\u53ef\u4ee5\u4f7f\u7528hscan\u3001sscan\u3001zscan\u4ee3\u66ff\u3002<\/p>\n<p><strong>2\u3001\u7981\u7528\u547d\u4ee4<\/strong><\/p>\n<p>\u7981\u6b62\u7ebf\u4e0a\u4f7f\u7528keys\u3001flushall\u3001flushdb\u7b49\uff0c\u901a\u8fc7redis\u7684rename\u673a\u5236\u7981\u6389\u547d\u4ee4\uff0c\u6216\u8005\u4f7f\u7528scan\u7684\u65b9\u5f0f\u6e10\u8fdb\u5f0f\u5904\u7406\u3002<\/p>\n<p><strong>3\u3001\u5408\u7406\u4f7f\u7528select<\/strong><\/p>\n<p>redis\u7684\u591a\u6570\u636e\u5e93\u8f83\u5f31\uff0c\u4f7f\u7528\u6570\u5b57\u8fdb\u884c\u533a\u5206\uff0c\u5f88\u591a\u5ba2\u6237\u7aef\u652f\u6301\u8f83\u5dee\uff0c\u540c\u65f6\u591a\u4e1a\u52a1\u7528\u591a\u6570\u636e\u5e93\u5b9e\u9645\u8fd8\u662f\u5355\u7ebf\u7a0b\u5904\u7406\uff0c\u4f1a\u6709\u5e72\u6270\u3002<\/p>\n<p><strong>4\u3001\u4f7f\u7528\u6279\u91cf\u64cd\u4f5c\u63d0\u9ad8\u6548\u7387<\/strong><\/p>\n<p>\u539f\u751f\u547d\u4ee4\uff1a\u4f8b\u5982mget\u3001mset\u3002<\/p>\n<p>\u975e\u539f\u751f\u547d\u4ee4\uff1a\u53ef\u4ee5\u4f7f\u7528pipeline\u63d0\u9ad8\u6548\u7387\u3002<\/p>\n<p>\u4f46\u8981\u6ce8\u610f\u63a7\u5236\u4e00\u6b21\u6279\u91cf\u64cd\u4f5c\u7684\u5143\u7d20\u4e2a\u6570(\u4f8b\u5982500\u4ee5\u5185\uff0c\u5b9e\u9645\u4e5f\u548c\u5143\u7d20\u5b57\u8282\u6570\u6709\u5173)\u3002<\/p>\n<p>\u6ce8\u610f\u4e24\u8005\u4e0d\u540c\uff1a<\/p>\n<ul>\n<li>&nbsp;\u539f\u751f\u662f\u539f\u5b50\u64cd\u4f5c\uff0cpipeline\u662f\u975e\u539f\u5b50\u64cd\u4f5c\u3002<\/li>\n<li>&nbsp;pipeline\u53ef\u4ee5\u6253\u5305\u4e0d\u540c\u7684\u547d\u4ee4\uff0c\u539f\u751f\u505a\u4e0d\u5230<\/li>\n<li>&nbsp;pipeline\u9700\u8981\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef\u540c\u65f6\u652f\u6301\u3002<\/li>\n<\/ul>\n<p><strong>5\u3001\u4e0d\u5efa\u8bae\u8fc7\u591a\u4f7f\u7528Redis\u4e8b\u52a1\u529f\u80fd<\/strong><\/p>\n<p>Redis\u7684\u4e8b\u52a1\u529f\u80fd\u8f83\u5f31(\u4e0d\u652f\u6301\u56de\u6eda)\uff0c\u800c\u4e14\u96c6\u7fa4\u7248\u672c(\u81ea\u7814\u548c\u5b98\u65b9)\u8981\u6c42\u4e00\u6b21\u4e8b\u52a1\u64cd\u4f5c\u7684key\u5fc5\u987b\u5728\u4e00\u4e2aslot\u4e0a(\u53ef\u4ee5\u4f7f\u7528hashtag\u529f\u80fd\u89e3\u51b3)<\/p>\n<p><strong>6\u3001Redis\u96c6\u7fa4\u7248\u672c\u5728\u4f7f\u7528Lua\u4e0a\u6709\u7279\u6b8a\u8981\u6c42<\/strong><\/p>\n<p>1\u3001\u6240\u6709key\u90fd\u5e94\u8be5\u7531 KEYS \u6570\u7ec4\u6765\u4f20\u9012\uff0credis.call\/pcall \u91cc\u9762\u8c03\u7528\u7684redis\u547d\u4ee4\uff0ckey\u7684\u4f4d\u7f6e\uff0c\u5fc5\u987b\u662fKEYS array, \u5426\u5219\u76f4\u63a5\u8fd4\u56deerror\uff0c&#8221;-ERR bad lua script for redis cluster, all the keys that the script uses should be passed using the KEYS arrayrn&#8221; 2\u3001\u6240\u6709key\uff0c\u5fc5\u987b\u57281\u4e2aslot\u4e0a\uff0c\u5426\u5219\u76f4\u63a5\u8fd4\u56deerror, &#8220;-ERR eval\/evalsha command keys must in same slotrn&#8221;<\/p>\n<p><strong>7\u3001monitor\u547d\u4ee4<\/strong><\/p>\n<p>\u5fc5\u8981\u60c5\u51b5\u4e0b\u4f7f\u7528monitor\u547d\u4ee4\u65f6\uff0c\u8981\u6ce8\u610f\u4e0d\u8981\u957f\u65f6\u95f4\u4f7f\u7528\u3002<\/p>\n<p><strong>\u4e09\u3001\u5ba2\u6237\u7aef\u4f7f\u7528<\/strong><\/p>\n<p><strong>1\u3001\u907f\u514d\u591a\u4e2a\u5e94\u7528\u4f7f\u7528\u4e00\u4e2aRedis\u5b9e\u4f8b<\/strong><\/p>\n<p>\u4e0d\u76f8\u5e72\u7684\u4e1a\u52a1\u62c6\u5206\uff0c\u516c\u5171\u6570\u636e\u505a\u670d\u52a1\u5316\u3002<\/p>\n<p><strong>2\u3001\u4f7f\u7528\u8fde\u63a5\u6c60<\/strong><\/p>\n<p>\u53ef\u4ee5\u6709\u6548\u63a7\u5236\u8fde\u63a5\uff0c\u540c\u65f6\u63d0\u9ad8\u6548\u7387\uff0c\u6807\u51c6\u4f7f\u7528\u65b9\u5f0f\uff1a<\/p>\n<p>\u6267\u884c\u547d\u4ee4\u5982\u4e0b\uff1a&nbsp;<\/p>\n<\/p>\n<ol>\n<li><span><span>Jedis&nbsp;<\/span><span>jedis<\/span><span>&nbsp;=&nbsp;<\/span><span>null<\/span><span>;&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>try&nbsp;{&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;<span>jedis<\/span><span>&nbsp;=&nbsp;<\/span><span>jedisPool<\/span><span>.getResource();&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;\/\/\u5177\u4f53\u7684\u547d\u4ee4&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;jedis.executeCommand()&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>}&nbsp;catch&nbsp;(Exception&nbsp;e)&nbsp;{&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;logger.error(&#8220;op&nbsp;key&nbsp;{}&nbsp;error:&nbsp;&#8221;&nbsp;+&nbsp;e.getMessage(),&nbsp;key,&nbsp;e);&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>}&nbsp;finally&nbsp;{&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;\/\/\u6ce8\u610f\u8fd9\u91cc\u4e0d\u662f\u5173\u95ed\u8fde\u63a5\uff0c\u5728JedisPool\u6a21\u5f0f\u4e0b\uff0cJedis\u4f1a\u88ab\u5f52\u8fd8\u7ed9\u8d44\u6e90\u6c60\u3002&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;if&nbsp;(jedis&nbsp;!=&nbsp;null)&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;jedis.close();&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>}&nbsp;<\/span><\/li>\n<\/ol>\n<p><strong>3\u3001\u7194\u65ad\u529f\u80fd<\/strong><\/p>\n<p>\u9ad8\u5e76\u53d1\u4e0b\u5efa\u8bae\u5ba2\u6237\u7aef\u6dfb\u52a0\u7194\u65ad\u529f\u80fd(\u4f8b\u5982netflix hystrix)<\/p>\n<p><strong>4\u3001\u5408\u7406\u7684\u52a0\u5bc6<\/strong><\/p>\n<p>\u8bbe\u7f6e\u5408\u7406\u7684\u5bc6\u7801\uff0c\u5982\u6709\u5fc5\u8981\u53ef\u4ee5\u4f7f\u7528SSL\u52a0\u5bc6\u8bbf\u95ee\uff08\u963f\u91cc\u4e91Redis\u652f\u6301\uff09<\/p>\n<p><strong>5\u3001\u6dd8\u6c70\u7b56\u7565<\/strong><\/p>\n<p>\u6839\u636e\u81ea\u8eab\u4e1a\u52a1\u7c7b\u578b\uff0c\u9009\u597dmaxmemory-policy(\u6700\u5927\u5185\u5b58\u6dd8\u6c70\u7b56\u7565)\uff0c\u8bbe\u7f6e\u597d\u8fc7\u671f\u65f6\u95f4\u3002<\/p>\n<p>\u9ed8\u8ba4\u7b56\u7565\u662fvolatile-lru\uff0c\u5373\u8d85\u8fc7\u6700\u5927\u5185\u5b58\u540e\uff0c\u5728\u8fc7\u671f\u952e\u4e2d\u4f7f\u7528lru\u7b97\u6cd5\u8fdb\u884ckey\u7684\u5254\u9664\uff0c\u4fdd\u8bc1\u4e0d\u8fc7\u671f\u6570\u636e\u4e0d\u88ab\u5220\u9664\uff0c\u4f46\u662f\u53ef\u80fd\u4f1a\u51fa\u73b0OOM\u95ee\u9898\u3002<\/p>\n<p>\u5176\u4ed6\u7b56\u7565\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>&nbsp;allkeys-lru\uff1a\u6839\u636eLRU\u7b97\u6cd5\u5220\u9664\u952e\uff0c\u4e0d\u7ba1\u6570\u636e\u6709\u6ca1\u6709\u8bbe\u7f6e\u8d85\u65f6\u5c5e\u6027\uff0c\u76f4\u5230\u817e\u51fa\u8db3\u591f\u7a7a\u95f4\u4e3a\u6b62\u3002<\/li>\n<li>&nbsp;allkeys-random\uff1a\u968f\u673a\u5220\u9664\u6240\u6709\u952e\uff0c\u76f4\u5230\u817e\u51fa\u8db3\u591f\u7a7a\u95f4\u4e3a\u6b62\u3002<\/li>\n<li>&nbsp;volatile-random:\u968f\u673a\u5220\u9664\u8fc7\u671f\u952e\uff0c\u76f4\u5230\u817e\u51fa\u8db3\u591f\u7a7a\u95f4\u4e3a\u6b62\u3002<\/li>\n<li>&nbsp;volatile-ttl\uff1a\u6839\u636e\u952e\u503c\u5bf9\u8c61\u7684ttl\u5c5e\u6027\uff0c\u5220\u9664\u6700\u8fd1\u5c06\u8981\u8fc7\u671f\u6570\u636e\u3002\u5982\u679c\u6ca1\u6709\uff0c\u56de\u9000\u5230noeviction\u7b56\u7565\u3002<\/li>\n<li>&nbsp; noeviction\uff1a\u4e0d\u4f1a\u5254\u9664\u4efb\u4f55\u6570\u636e\uff0c\u62d2\u7edd\u6240\u6709\u5199\u5165\u64cd\u4f5c\u5e76\u8fd4\u56de\u5ba2\u6237\u7aef\u9519\u8bef\u4fe1\u606f&#8221;(error) OOM command not allowed when used memory&#8221;\uff0c\u6b64\u65f6Redis\u53ea\u54cd\u5e94\u8bfb\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<p><strong>\u56db\u3001\u76f8\u5173\u5de5\u5177<\/strong><\/p>\n<p><strong>1\u3001\u6570\u636e\u540c\u6b65<\/strong><\/p>\n<p>redis\u95f4\u6570\u636e\u540c\u6b65\u53ef\u4ee5\u4f7f\u7528\uff1aredis-port<\/p>\n<p><strong>2\u3001big key\u641c\u7d22<\/strong><\/p>\n<p>redis\u5927key\u641c\u7d22\u5de5\u5177<\/p>\n<p><strong>3\u3001\u70ed\u70b9key\u5bfb\u627e<\/strong><\/p>\n<p>\u5185\u90e8\u5b9e\u73b0\u4f7f\u7528monitor\uff0c\u6240\u4ee5\u5efa\u8bae\u77ed\u65f6\u95f4\u4f7f\u7528facebook\u7684redis-faina \u963f\u91cc\u4e91Redis\u5df2\u7ecf\u5728\u5185\u6838\u5c42\u9762\u89e3\u51b3\u70ed\u70b9key\u95ee\u9898<\/p>\n<p><strong>\u4e94\u3001\u5220\u9664bigkey<\/strong><\/p>\n<p>\u4e0b\u9762\u64cd\u4f5c\u53ef\u4ee5\u4f7f\u7528pipeline\u52a0\u901f\u3002redis 4.0\u5df2\u7ecf\u652f\u6301key\u7684\u5f02\u6b65\u5220\u9664\uff0c\u6b22\u8fce\u4f7f\u7528\u3002<\/p>\n<p><strong>1\u3001Hash\u5220\u9664: hscan + hdel<\/strong>&nbsp;<\/p>\n<\/p>\n<ol>\n<li><span><span>public&nbsp;void&nbsp;delBigHash(String&nbsp;host,&nbsp;int&nbsp;port,&nbsp;String&nbsp;password,&nbsp;String&nbsp;bigHashKey)&nbsp;{&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;Jedis&nbsp;<span>jedis<\/span><span>&nbsp;=&nbsp;<\/span><span>new<\/span><span>&nbsp;Jedis(host,&nbsp;port);&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;if&nbsp;(password&nbsp;!=&nbsp;null&nbsp;&amp;&amp;&nbsp;!&#8221;&#8221;.equals(password))&nbsp;{&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;jedis.auth(password);&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;ScanParams&nbsp;<span>scanParams<\/span><span>&nbsp;=&nbsp;<\/span><span>new<\/span><span>&nbsp;ScanParams().count(100);&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;String&nbsp;<span>cursor<\/span><span>&nbsp;=&nbsp;<\/span><span>&#8220;0&#8221;<\/span><span>;&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;do&nbsp;{&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;ScanResult<span><span>Entry<\/span><span><span>String<\/span><span>,&nbsp;String<\/span><span>&gt;<\/span><span>&gt;<\/span><span>&nbsp;<\/span><span>scanResult<\/span><span>&nbsp;=&nbsp;<\/span><span>jedis<\/span><span>.hscan(bigHashKey,&nbsp;cursor,&nbsp;scanParams);&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/span><\/span><\/li>\n<li><span>&nbsp;List<span><span>Entry<\/span><span><span>String<\/span><span>,&nbsp;String<\/span><span>&gt;<\/span><span>&gt;<\/span><span>&nbsp;<\/span><span>entryList<\/span><span>&nbsp;=&nbsp;<\/span><span>scanResult<\/span><span>.getResult();&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/span><\/span><\/li>\n<li><span>&nbsp;if&nbsp;(entryList&nbsp;!=&nbsp;null&nbsp;&amp;&amp;&nbsp;!entryList.isEmpty())&nbsp;{&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;for&nbsp;(Entry<span><span>String<\/span><span>,&nbsp;String<\/span><span>&gt;<\/span><span>&nbsp;entry&nbsp;:&nbsp;entryList)&nbsp;{&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;jedis.hdel(bigHashKey,&nbsp;entry.getKey());&nbsp;<\/span><\/li>\n<li><span>&nbsp;<\/span><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span>cursor<\/span><span>&nbsp;=&nbsp;<\/span><span>scanResult<\/span><span>.getStringCursor();&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;while&nbsp;(!&#8221;0&#8243;.equals(cursor));&nbsp;<\/span><span>&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;\/\/\u5220\u9664bigkey&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;jedis.del(bigHashKey);&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>}&nbsp;<\/span><\/li>\n<\/ol>\n<p><strong>2\u3001List\u5220\u9664: ltrim<\/strong>&nbsp;<\/p>\n<\/p>\n<ol>\n<li><span><span>public&nbsp;void&nbsp;delBigList(String&nbsp;host,&nbsp;int&nbsp;port,&nbsp;String&nbsp;password,&nbsp;String&nbsp;bigListKey)&nbsp;{&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;Jedis&nbsp;<span>jedis<\/span><span>&nbsp;=&nbsp;<\/span><span>new<\/span><span>&nbsp;Jedis(host,&nbsp;port);&nbsp;<\/span><\/span><\/li>\n<li><span>&nbsp;<\/span><span>&nbsp;if&nbsp;(password&nbsp;!=&nbsp;null&nbsp;&amp;&amp;&nbsp;!&#8221;&#8221;.equals(password))&nbsp;{&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;jedis.auth(password);&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;long&nbsp;<span>llen<\/span><span>&nbsp;=&nbsp;<\/span><span>jedis<\/span><span>.llen(bigListKey);&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;int&nbsp;<span>counter<\/span><span>&nbsp;=&nbsp;<\/span><span>0<\/span><span>;&nbsp;<\/span><\/span><\/li>\n<li><span>&nbsp;<\/span><span>&nbsp;int&nbsp;<span>left<\/span><span>&nbsp;=&nbsp;<\/span><span>100<\/span><span>;&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;while&nbsp;(counter&nbsp;<span><span>&nbsp;<\/span><span>llen<\/span><span>)&nbsp;{&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/span><\/li>\n<li><span>&nbsp;\/\/\u6bcf\u6b21\u4ece\u5de6\u4fa7\u622a\u6389100\u4e2a&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;jedis.ltrim(bigListKey,&nbsp;left,&nbsp;llen);&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;counter&nbsp;+=&nbsp;left;&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;\/\/\u6700\u7ec8\u5220\u9664key&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;jedis.del(bigListKey);&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>}&nbsp;<\/span><\/li>\n<\/ol>\n<p><strong>3\u3001Set\u5220\u9664: sscan + srem<\/strong>&nbsp;<\/p>\n<\/p>\n<ol>\n<li><span><span>public&nbsp;void&nbsp;delBigSet(String&nbsp;host,&nbsp;int&nbsp;port,&nbsp;String&nbsp;password,&nbsp;String&nbsp;bigSetKey)&nbsp;{&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;Jedis&nbsp;<span>jedis<\/span><span>&nbsp;=&nbsp;<\/span><span>new<\/span><span>&nbsp;Jedis(host,&nbsp;port);&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;if&nbsp;(password&nbsp;!=&nbsp;null&nbsp;&amp;&amp;&nbsp;!&#8221;&#8221;.equals(password))&nbsp;{&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;jedis.auth(password);&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;ScanParams&nbsp;<span>scanParams<\/span><span>&nbsp;=&nbsp;<\/span><span>new<\/span><span>&nbsp;ScanParams().count(100);&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;String&nbsp;<span>cursor<\/span><span>&nbsp;=&nbsp;<\/span><span>&#8220;0&#8221;<\/span><span>;&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;do&nbsp;{&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;ScanResult<span><span>String<\/span><span>&gt;<\/span><span>&nbsp;<\/span><span>scanResult<\/span><span>&nbsp;=&nbsp;<\/span><span>jedis<\/span><span>.sscan(bigSetKey,&nbsp;cursor,&nbsp;scanParams);&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/span><\/li>\n<li><span>&nbsp;List<span><span>String<\/span><span>&gt;<\/span><span>&nbsp;<\/span><span>memberList<\/span><span>&nbsp;=&nbsp;<\/span><span>scanResult<\/span><span>.getResult();&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/span><\/li>\n<li><span>&nbsp;if&nbsp;(memberList&nbsp;!=&nbsp;null&nbsp;&amp;&amp;&nbsp;!memberList.isEmpty())&nbsp;{&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;for&nbsp;(String&nbsp;member&nbsp;:&nbsp;memberList)&nbsp;{&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;jedis.srem(bigSetKey,&nbsp;member);&nbsp;<\/span><\/li>\n<li><span>&nbsp;<\/span><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span>cursor<\/span><span>&nbsp;=&nbsp;<\/span><span>scanResult<\/span><span>.getStringCursor();&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;while&nbsp;(!&#8221;0&#8243;.equals(cursor));&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;\/\/\u5220\u9664bigkey&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;jedis.del(bigSetKey);&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>}&nbsp;<\/span><\/li>\n<\/ol>\n<p><strong>4\u3001SortedSet\u5220\u9664: zscan + zrem<\/strong>&nbsp;<\/p>\n<\/p>\n<ol>\n<li><span><span>public&nbsp;void&nbsp;delBigZset(String&nbsp;host,&nbsp;int&nbsp;port,&nbsp;String&nbsp;password,&nbsp;String&nbsp;bigZsetKey)&nbsp;{&nbsp;&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;Jedis&nbsp;<span>jedis<\/span><span>&nbsp;=&nbsp;<\/span><span>new<\/span><span>&nbsp;Jedis(host,&nbsp;port);&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;if&nbsp;(password&nbsp;!=&nbsp;null&nbsp;&amp;&amp;&nbsp;!&#8221;&#8221;.equals(password))&nbsp;{&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;jedis.auth(password);&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;ScanParams&nbsp;<span>scanParams<\/span><span>&nbsp;=&nbsp;<\/span><span>new<\/span><span>&nbsp;ScanParams().count(100);&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;String&nbsp;<span>cursor<\/span><span>&nbsp;=&nbsp;<\/span><span>&#8220;0&#8221;<\/span><span>;&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;do&nbsp;{&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;ScanResult<span><span>Tuple<\/span><span>&gt;<\/span><span>&nbsp;<\/span><span>scanResult<\/span><span>&nbsp;=&nbsp;<\/span><span>jedis<\/span><span>.zscan(bigZsetKey,&nbsp;cursor,&nbsp;scanParams);&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/span><\/li>\n<li><span>&nbsp;List<span><span>Tuple<\/span><span>&gt;<\/span><span>&nbsp;<\/span><span>tupleList<\/span><span>&nbsp;=&nbsp;<\/span><span>scanResult<\/span><span>.getResult();&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/span><\/li>\n<li><span>&nbsp;if&nbsp;(tupleList&nbsp;!=&nbsp;null&nbsp;&amp;&amp;&nbsp;!tupleList.isEmpty())&nbsp;{&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;for&nbsp;(Tuple&nbsp;tuple&nbsp;:&nbsp;tupleList)&nbsp;{&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;jedis.zrem(bigZsetKey,&nbsp;tuple.getElement());&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span>cursor<\/span><span>&nbsp;=&nbsp;<\/span><span>scanResult<\/span><span>.getStringCursor();&nbsp;<\/span><\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;while&nbsp;(!&#8221;0&#8243;.equals(cursor));&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;\/\/\u5220\u9664bigkey&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>&nbsp;&nbsp;&nbsp;&nbsp;jedis.del(bigZsetKey);&nbsp;<\/span><span>&nbsp;<\/span><\/li>\n<li><span>}&nbsp;<\/span>&nbsp;<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u963f\u91cc\u5df4\u5df4\u5b98\u65b9\u6700\u65b0Redis\u5f00\u53d1\u89c4&#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-201420","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201420","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=201420"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201420\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201420"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201420"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201420"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}