{"id":201339,"date":"2025-05-10T10:17:02","date_gmt":"2025-05-10T02:17:02","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201339\/"},"modified":"2025-05-10T10:17:02","modified_gmt":"2025-05-10T02:17:02","slug":"redis-value%e8%bf%87%e5%a4%a7%e9%97%ae%e9%a2%98%e9%94%ae%e5%80%bc%e8%bf%87%e5%a4%a7","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201339\/","title":{"rendered":"Redis Value\u8fc7\u5927\u95ee\u9898(\u952e\u503c\u8fc7\u5927)"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>Redis Value\u8fc7\u5927\u95ee\u9898(\u952e\u503c\u8fc7\u5927)<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>IT\u884c\u4e1a\u76f8\u5bf9\u4e8e\u4e00\u822c\u4f20\u7edf\u884c\u4e1a\uff0c\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u66f4\u5feb\uff0c\u4e00\u65e6\u505c\u6b62\u4e86\u5b66\u4e60\uff0c\u5f88\u5feb\u5c31\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u6240\u4ee5\u6211\u4eec\u9700\u8981\u8e0f\u8e0f\u5b9e\u5b9e\u7684\u4e0d\u65ad\u5b66\u4e60\uff0c\u7cbe\u8fdb\u81ea\u5df1\u7684\u6280\u672f\uff0c\u5c24\u5176\u662f\u521d\u5b66\u8005\u3002\u4eca\u5929golang\u5b66\u4e60\u7f51\u7ed9\u5927\u5bb6\u6574\u7406\u4e86\u300aRedis Value\u8fc7\u5927\u95ee\u9898(\u952e\u503c\u8fc7\u5927)\u300b\uff0c\u804a\u804aRedisValue\u3001\u8fc7\u5927\uff0c\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01<\/p>\n<h3>Redis Big Key\u95ee\u9898<br \/><\/h3>\n<p>\u6570\u636e\u91cf\u5927\u7684 key \uff0c\u7531\u4e8e\u5176\u6570\u636e\u5927\u5c0f\u8fdc\u5927\u4e8e\u5176\u4ed6key\uff0c\u5bfc\u81f4\u7ecf\u8fc7\u5206\u7247\u4e4b\u540e\uff0c\u67d0\u4e2a\u5177\u4f53\u5b58\u50a8\u8fd9\u4e2a big key \u7684\u5b9e\u4f8b\u5185\u5b58\u4f7f\u7528\u91cf\u8fdc\u5927\u4e8e\u5176\u4ed6\u5b9e\u4f8b\uff0c\u9020\u6210\u5185\u5b58\u4e0d\u8db3\uff0c\u62d6\u7d2f\u6574\u4e2a\u96c6\u7fa4\u7684\u4f7f\u7528\u3002big key \u5728\u4e0d\u540c\u4e1a\u52a1\u4e0a\uff0c\u901a\u5e38\u4f53\u73b0\u4e3a\u4e0d\u540c\u7684\u6570\u636e\uff0c\u6bd4\u5982\uff1a<\/p>\n<ul>\n<li>\u8bba\u575b\u4e2d\u7684\u5927\u578b\u6301\u4e45\u76d6\u697c\u6d3b\u52a8\uff1b<\/li>\n<li>\u804a\u5929\u5ba4\u7cfb\u7edf\u4e2d\u70ed\u95e8\u804a\u5929\u5ba4\u7684\u6d88\u606f\u5217\u8868\uff1b<\/li>\n<\/ul>\n<h3>\u5e26\u6765\u7684\u95ee\u9898<br \/><\/h3>\n<p>bigkey \u901a\u5e38\u4f1a\u5bfc\u81f4\u5185\u5b58\u7a7a\u95f4\u4e0d\u5e73\u8861\uff0c\u8d85\u65f6\u963b\u585e\uff0c\u5982\u679c key \u8f83\u5927\uff0credis \u53c8\u662f\u5355\u7ebf\u7a0b\uff0c\u64cd\u4f5c bigkey \u6bd4\u8f83\u8017\u65f6\uff0c\u90a3\u4e48\u963b\u585e redis \u7684\u53ef\u80fd\u6027\u589e\u5927\u3002\u6bcf\u6b21\u83b7\u53d6 bigKey \u7684\u7f51\u7edc\u6d41\u91cf\u8f83\u5927\uff0c\u5047\u8bbe\u4e00\u4e2a bigkey \u4e3a 1MB,\u6bcf\u79d2\u8bbf\u95ee\u91cf\u4e3a 1000\uff0c\u90a3\u4e48\u6bcf\u79d2\u4ea7\u751f 1000MB \u7684\u6d41\u91cf\uff0c\u5bf9\u4e8e\u666e\u901a\u5343\u5146\u7f51\u5361\uff0c\u6309\u7167\u5b57\u8282\u7b97 128M\/S \u7684\u670d\u52a1\u5668\u6765\u8bf4\u53ef\u80fd\u625b\u4e0d\u4f4f\u3002\u800c\u4e14\u4e00\u822c\u670d\u52a1\u5668\u91c7\u7528\u5355\u673a\u591a\u5b9e\u4f8b\u65b9\u5f0f\u6765\u90e8\u7f72\uff0c\u6240\u4ee5\u8fd8\u53ef\u80fd\u5bf9\u5176\u4ed6\u5b9e\u4f8b\u9020\u6210\u5f71\u54cd\u3002<\/p>\n<ol>\n<li>\u5982\u679c\u662f\u96c6\u7fa4\u6a21\u5f0f\u4e0b\uff0c\u65e0\u6cd5\u505a\u5230\u8d1f\u8f7d\u5747\u8861\uff0c\u5bfc\u81f4\u8bf7\u6c42\u503e\u659c\u5230\u67d0\u4e2a\u5b9e\u4f8b\u4e0a\uff0c\u800c\u8fd9\u4e2a\u5b9e\u4f8b\u7684QPS\u4f1a\u6bd4\u8f83\u5927\uff0c\u5185\u5b58\u5360\u7528\u4e5f\u8f83\u591a\uff1b\u5bf9\u4e8eRedis\u5355\u7ebf\u7a0b\u6a21\u578b\u53c8\u5bb9\u6613\u51fa\u73b0CPU\u74f6\u9888\uff0c\u5f53\u5185\u5b58\u51fa\u73b0\u74f6\u9888\u65f6\uff0c\u53ea\u80fd\u8fdb\u884c\u7eb5\u5411\u5e93\u5bb9\uff0c\u4f7f\u7528\u66f4\u725b\u903c\u7684\u670d\u52a1\u5668\u3002<\/li>\n<li>\u6d89\u53ca\u5230\u5927key\u7684\u64cd\u4f5c\uff0c\u5c24\u5176\u662f\u4f7f\u7528hgetall\u3001lrange\u3001get\u3001hmget \u7b49\u64cd\u4f5c\u65f6\uff0c\u7f51\u5361\u53ef\u80fd\u4f1a\u6210\u4e3a\u74f6\u9888\uff0c\u4e5f\u4f1a\u5230\u5bfc\u81f4\u5835\u585e\u5176\u5b83\u64cd\u4f5c\uff0cqps \u5c31\u6709\u53ef\u80fd\u51fa\u73b0\u7a81\u964d\u6216\u8005\u7a81\u5347\u7684\u60c5\u51b5\uff0c\u8d8b\u52bf\u4e0a\u770b\u8d77\u6765\u5341\u5206\u4e0d\u5e73\u6ed1\uff0c\u4e25\u91cd\u65f6\u4f1a\u5bfc\u81f4\u5e94\u7528\u7a0b\u5e8f\u8fde\u4e0d\u4e0a\uff0c\u5b9e\u4f8b\u6216\u8005\u96c6\u7fa4\u5728\u67d0\u4e9b\u65f6\u95f4\u6bb5\u5185\u4e0d\u53ef\u7528\u7684\u72b6\u6001\u3002<\/li>\n<li>\u5047\u5982\u8fd9\u4e2akey\u9700\u8981\u8fdb\u884c\u5220\u9664\u64cd\u4f5c\uff0c\u5982\u679c\u76f4\u63a5\u8fdb\u884cDEL \u64cd\u4f5c\uff0c\u88ab\u64cd\u4f5c\u7684\u5b9e\u4f8b\u4f1a\u88abBlock\u4f4f\uff0c\u5bfc\u81f4\u65e0\u6cd5\u54cd\u5e94\u5e94\u7528\u7684\u8bf7\u6c42\uff0c\u800c\u8fd9\u4e2aBlock\u7684\u65f6\u95f4\u4f1a\u968f\u7740key\u7684\u53d8\u5927\u800c\u53d8\u957f\u3002<\/li>\n<\/ol>\n<h3>\u4ec0\u4e48\u662f big key<br \/><\/h3>\n<ul>\n<li>\u5b57\u7b26\u4e32\u7c7b\u578b\uff1a\u4e00\u822c\u8ba4\u4e3a\u8d85\u8fc7 10k \u7684\u5c31\u662f bigkey\uff0c\u4f46\u662f\u8fd9\u4e2a\u503c\u548c\u5177\u4f53\u7684 OPS \u76f8\u5173\u3002<\/li>\n<li>\u975e\u5b57\u7b26\u4e32\u7c7b\u578b\uff1a\u4f53\u73b0\u5728\u54c8\u5e0c\uff0c\u5217\u8868\uff0c\u96c6\u5408\u7c7b\u578b\u5143\u7d20\u8fc7\u591a\u3002<\/li>\n<\/ul>\n<h3>\u5bfb\u627ebig key<br \/><\/h3>\n<p>redis-cli\u81ea\u5e26&#8211;bigkeys\u3002<\/p>\n<pre>\n$ redis-cli -p 999 --bigkeys -i 0.1\n#Scanning the entire keyspace to find biggest keys as well as average sizes per key type. You can use -i 0.1 to sleep 0.1 sec per 100 SCAN commands (not usually needed).\n<\/pre>\n<p>\u83b7\u53d6\u751f\u4ea7Redis\u7684rdb\u6587\u4ef6\uff0c\u901a\u8fc7rdbtools\u5206\u6790rdb\u751f\u6210csv\u6587\u4ef6\uff0c\u518d\u5bfc\u5165MySQL\u6216\u5176\u4ed6\u6570\u636e\u5e93\u4e2d\u8fdb\u884c\u5206\u6790\u7edf\u8ba1\uff0c\u6839\u636esize_in_bytes\u7edf\u8ba1bigkey<\/p>\n<pre>\n$ git clone https:\/\/github.com\/sripathikrishnan\/redis-rdb-tools\n$ cd redis-rdb-tools\n$ sudo python setup.py install\n$ rdb -c memory dump-10030.rdb &gt; memory.csv\n<\/pre>\n<p>\u901a\u8fc7python\u811a\u672c\uff0c\u8fed\u4ee3scan key\uff0c\u6bcf\u6b21scan 1000\uff0c\u5bf9\u626b\u63cf\u51fa\u6765\u7684key\u8fdb\u884c\u7c7b\u578b\u5224\u65ad\uff0c\u4f8b\u5982\uff1astring\u957f\u5ea6\u5927\u4e8e10K\uff0clist\u957f\u5ea6\u5927\u4e8e10240\u8ba4\u4e3a\u662fbig bigkeys<\/p>\n<p>\u5176\u4ed6\u7b2c\u4e09\u65b9\u5de5\u5177\uff0c\u4f8b\u5982\uff1a<\/p>\n<h3>\u4f18\u5316big key<br \/><\/h3>\n<p>\u4f18\u5316big key\u7684\u539f\u5219\u5c31\u662fstring\u51cf\u5c11\u5b57\u7b26\u4e32\u957f\u5ea6\uff0clist\u3001hash\u3001set\u3001zset\u7b49\u51cf\u5c11\u6210\u5458\u6570\u3002<\/p>\n<p>string\u7c7b\u578b\u7684big key\uff0c\u5efa\u8bae\u4e0d\u8981\u5b58\u5165redis\uff0c\u7528\u6587\u6863\u578b\u6570\u636e\u5e93MongoDB\u4ee3\u66ff\u6216\u8005\u76f4\u63a5\u7f13\u5b58\u5230CDN\u4e0a\u7b49\u65b9\u5f0f\u4f18\u5316\u3002\u6709\u4e9b key \u4e0d\u53ea\u662f\u8bbf\u95ee\u91cf\u5927\uff0c\u6570\u636e\u91cf\u4e5f\u5f88\u5927\uff0c\u8fd9\u4e2a\u65f6\u5019\u5c31\u8981\u8003\u8651\u8fd9\u4e2a key \u4f7f\u7528\u7684\u573a\u666f\uff0c\u5b58\u50a8\u5728redis\u96c6\u7fa4\u4e2d\u662f\u5426\u662f\u5408\u7406\u7684\uff0c\u662f\u5426\u4f7f\u7528\u5176\u4ed6\u7ec4\u4ef6\u6765\u5b58\u50a8\u66f4\u5408\u9002\uff1b\u5982\u679c\u575a\u6301\u8981\u7528 redis \u6765\u5b58\u50a8\uff0c\u53ef\u80fd\u8003\u8651\u8fc1\u79fb\u51fa\u96c6\u7fa4\uff0c\u91c7\u7528\u4e00\u4e3b\u4e00\u5907\uff08\u62161\u4e3b\u591a\u5907\uff09\u7684\u67b6\u6784\u6765\u5b58\u50a8\u3002<\/p>\n<p>\u5355\u4e2a\u7b80\u5355\u7684key\u5b58\u50a8\u7684value\u5f88\u5927<\/p>\n<p>\u8be5\u5bf9\u8c61\u9700\u8981\u6bcf\u6b21\u90fd\u6574\u5b58\u6574\u53d6: \u53ef\u4ee5\u5c1d\u8bd5\u5c06\u5bf9\u8c61\u5206\u62c6\u6210\u51e0\u4e2akey-value\uff0c \u4f7f\u7528multiGet\u83b7\u53d6\u503c\uff0c\u8fd9\u6837\u5206\u62c6\u7684\u610f\u4e49\u5728\u4e8e\u5206\u62c6\u5355\u6b21\u64cd\u4f5c\u7684\u538b\u529b\uff0c\u5c06\u64cd\u4f5c\u538b\u529b\u5e73\u644a\u5230\u591a\u4e2aredis\u5b9e\u4f8b\u4e2d\uff0c\u964d\u4f4e\u5bf9\u5355\u4e2aredis\u7684IO\u5f71\u54cd\uff1b<br \/> \u8be5\u5bf9\u8c61\u6bcf\u6b21\u53ea\u9700\u8981\u5b58\u53d6\u90e8\u5206\u6570\u636e: \u53ef\u4ee5\u50cf\u7b2c\u4e00\u79cd\u505a\u6cd5\u4e00\u6837\uff0c\u5206\u62c6\u6210\u51e0\u4e2akey-value\uff0c\u4e5f\u53ef\u4ee5\u5c06\u8fd9\u4e2a\u5b58\u50a8\u5728\u4e00\u4e2ahash\u4e2d\uff0c\u6bcf\u4e2afield\u4ee3\u8868\u4e00\u4e2a\u5177\u4f53\u7684\u5c5e\u6027\uff0c\u4f7f\u7528hget,hmget\u6765\u83b7\u53d6\u90e8\u5206\u7684value\uff0c\u4f7f\u7528hset\uff0chmset\u6765\u66f4\u65b0\u90e8\u5206\u5c5e\u6027\u3002<\/p>\n<p>hash\uff0c set\uff0czset\uff0clist \u4e2d\u5b58\u50a8\u8fc7\u591a\u7684\u5143\u7d20<\/p>\n<p>\u53ef\u4ee5\u5c06\u8fd9\u4e9b\u5143\u7d20\u5206\u62c6\u3002\u4ee5hash\u4e3a\u4f8b\uff0c\u539f\u5148\u7684\u6b63\u5e38\u5b58\u53d6\u6d41\u7a0b\u662f hget(hashKey, field) ; hset(hashKey, field, value)<br \/> \u73b0\u5728\uff0c\u56fa\u5b9a\u4e00\u4e2a\u6876\u7684\u6570\u91cf\uff0c\u6bd4\u5982 10000\uff0c \u6bcf\u6b21\u5b58\u53d6\u7684\u65f6\u5019\uff0c\u5148\u5728\u672c\u5730\u8ba1\u7b97field\u7684hash\u503c\uff0c\u6a21\u9664 10000\uff0c\u786e\u5b9a\u4e86\u8be5field\u843d\u5728\u54ea\u4e2akey\u4e0a\u3002<\/p>\n<pre>\nnewHashKey = hashKey + (hash(field) % 10000\uff09;  \nhset(newHashKey, field, value) ; \nhget(newHashKey, field)<\/pre>\n<p>set, zset, list \u4e5f\u53ef\u4ee5\u7c7b\u4f3c\u4e0a\u8ff0\u505a\u6cd5\u3002\u4f46\u6709\u4e9b\u4e0d\u9002\u5408\u7684\u573a\u666f\uff0c\u6bd4\u5982\uff0c\u8981\u4fdd\u8bc1 lpop \u7684\u6570\u636e\u7684\u786e\u662f\u6700\u65e9push\u5230list\u4e2d\u53bb\u7684\uff0c\u8fd9\u4e2a\u5c31\u9700\u8981\u4e00\u4e9b\u9644\u52a0\u7684\u5c5e\u6027\uff0c\u6216\u8005\u662f\u5728 key\u7684\u62fc\u63a5\u4e0a\u505a\u4e00\u4e9b\u5de5\u4f5c\uff08\u6bd4\u5982list\u6309\u7167\u65f6\u95f4\u6765\u5206\u62c6\uff09\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Redis Value\u8fc7\u5927\u95ee\u9898(&#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-201339","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201339","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=201339"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201339\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201339"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201339"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201339"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}