{"id":201252,"date":"2025-05-10T10:14:24","date_gmt":"2025-05-10T02:14:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201252\/"},"modified":"2025-05-10T10:14:24","modified_gmt":"2025-05-10T02:14:24","slug":"redis%e5%a4%8d%e5%88%b6%e6%9c%89%e5%8f%af%e8%83%bd%e7%a2%b0%e5%88%b0%e7%9a%84%e9%97%ae%e9%a2%98%e6%b1%87%e6%80%bb","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201252\/","title":{"rendered":"redis\u590d\u5236\u6709\u53ef\u80fd\u78b0\u5230\u7684\u95ee\u9898\u6c47\u603b"},"content":{"rendered":"

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

redis\u590d\u5236\u6709\u53ef\u80fd\u78b0\u5230\u7684\u95ee\u9898\u6c47\u603b<\/h1>\n

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

\u6765\u5230golang\u5b66\u4e60\u7f51\u7684\u5927\u5bb6\uff0c\u76f8\u4fe1\u90fd\u662f\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5e0c\u671b\u5728\u8fd9\u91cc\u5b66\u4e60\u6570\u636e\u5e93\u76f8\u5173\u7f16\u7a0b\u77e5\u8bc6\u3002\u4e0b\u9762\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u5e26\u5927\u5bb6\u804a\u804a\u300aredis\u590d\u5236\u6709\u53ef\u80fd\u78b0\u5230\u7684\u95ee\u9898\u6c47\u603b\u300b\uff0c\u4ecb\u7ecd\u4e00\u4e0bredis\u590d\u5236\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n

\u4f7f\u7528salveof\u547d\u4ee4\u4e4b\u540e\uff0c\u957f\u65f6\u95f4\u770b\u4e0d\u5230\u6570\u636e\u540c\u6b65\uff0c\u4ee5\u4e3a\u590d\u5236\u529f\u80fd\u5931\u6548\u4e86\uff0c\u6216\u914d\u7f6e\u9519\u4e86\u3002\u5176\u5b9e\u4e0d\u7528\u62c5\u5fc3\uff0c\u6709\u4e24\u79cd\u65b9\u6cd5\u53ef\u4ee5\u786e\u5b9a\u662f\u5426\u6b63\u5728\u5efa\u7acb\u590d\u5236\u3002<\/p>\n

\u5728\u521b\u5efaredis\u590d\u5236\u662f\uff0c\u4e00\u5f00\u59cb\u53ef\u80fd\u4f1a\u53d1\u73b0slave\u957f\u65f6\u95f4\u4e0d\u5f00\u59cb\u540c\u6b65\u6570\u636e\uff0c\u53ef\u80fd\u6570\u636e\u91cf\u592a\u5927\uff0c\u5bfc\u81f4\u4e86master\u5728dump\u6570\u636e\u6162\uff0c\u6b64\u65f6\u53ef\u4ee5\u5728master\u4e0a\u6267\u884ctop -p ${pgrep -d,redis-sever}\u547d\u4ee4\uff0c\u5c31\u53ef\u4ee5\u770b\u5230dump\u7684\u8fc7\u7a0b\u3002<\/p>\n

[root@img1_u ~]# top -p $(pgrep -d, redis-server)\ntop - 14:06:24 up 54 days,  6:13,  1 user,  load average: 1.18, 1.32, 1.20\nTasks:   2 total,   1 running,   1 sleeping,   0 stopped,   0 zombie\nCpu(s): 15.2%us,  1.7%sy,  0.6%ni, 81.9%id,  0.2%wa,  0.0%hi,  0.4%si,  0.0%st\nMem:  24542176k total, 22771848k used,  1770328k free,  2245720k buffers\nSwap:   524280k total,        0k used,   524280k free,  4369452k cached\n\n  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND\n21619 root      20   0 5654m 5.4g  388 R 99.9 23.0   0:23.70 redis-server\n 1663 root      20   0 5654m 5.4g 1068 S 15.3 23.0   5042:31 redis-server<\/pre>\n
redis-server\u662f\u5355\u8fdb\u7a0b\u7684\uff0c\u73b0\u5728\u901a\u8fc7top\u547d\u4ee4\u67e5\u770b\u5df2\u7ecf\u67092\u4e2a\u8fdb\u7a0b\uff0c\u56e0\u4e3a\u4e4b\u524d\u63d0\u5230\u7684\uff0credis\u5728\u5efa\u7acb\u590d\u5236\u7684\u65f6\u5019\uff0c\u4f1a\u5728\u4e3b\u670d\u52a1\u4e0a\u6267\u884cbgsave\u547d\u4ee4\uff0cfork\u4e00\u4e2a\u5b50\u8fdb\u7a0b\uff0cdump\u51faRDB\u6587\u4ef6\u3002master dump\u5b8c\u6bd5\uff0c\u7136\u540e\u518d\u5c06\u5feb\u7167\u6587\u4ef6\u4f20\u7ed9slave.<\/p>\n
\u65b9\u6cd5\u4e8c\uff1a\u901a\u8fc7rdb_bgsave_in_progress\u6807\u8bc6<\/p>\n
\u8fdb\u5165master\u7684redis-cli<\/p>\n
127.0.0.1:6381> info Persistence\n# Persistence\nloading:0\ncurrent_cow_size:0\ncurrent_cow_size_age:0\ncurrent_fork_perc:0.00\ncurrent_save_keys_processed:0\ncurrent_save_keys_total:0\nrdb_changes_since_last_save:0\nrdb_bgsave_in_progress:0  ##\u8fd9\u4e2a\u8868\u793a\u6ca1\u6709\nrdb_last_save_time:1648953406\nrdb_last_bgsave_status:ok\nrdb_last_bgsave_time_sec:0\nrdb_current_bgsave_time_sec:-1\nrdb_last_cow_size:311296\naof_enabled:0\naof_rewrite_in_progress:0\naof_rewrite_scheduled:0\naof_last_rewrite_time_sec:-1\naof_current_rewrite_time_sec:-1\naof_last_bgrewrite_status:ok\naof_last_write_status:ok\naof_last_cow_size:0\nmodule_fork_in_progress:0\nmodule_fork_last_cow_size:0<\/pre>\n
\u5982\u679crdb_bgsave_in_progress\u4e3a1\uff0c\u90a3\u4e48master\u6b63\u5728\u8fdb\u884cbgsave\u547d\u4ee4\u3002\u540c\u65f6rdb_current_bgsave_time_sec\u663e\u793abgsave\u547d\u4ee4\u5df2\u7ecf\u6267\u884c\u7684\u65f6\u95f4\u3002\u7531\u4e8emaster\u670d\u52a1\u5668\u4e0a\u9ed8\u8ba4\u4e0d\u5f00\u542fRDB\u548cAOF\u65e5\u5fd7\uff0c\u5982\u679crdb_bgsave_in_progress\u4e3a1\uff0c\u90a3\u4e48\u5c31\u53ef\u4ee5\u80af\u5b9a\u7531\u4e8e\u590d\u5236\u539f\u56e0\u53d1\u9001\u4e00\u4e2abgsave\u6307\u4ee4dump\u51faRDB\u6587\u4ef6\u3002<\/p>\n
\u8865\u5145\uff1a\u4e0b\u9762\u770b\u4e0bredis\u4e3b\u4ece\u590d\u5236\u7684\u4e00\u4e9b\u7279\u70b9<\/span><\/p>\n
Redis\u4e3b\u4ece\u540c\u6b65\u7b56\u7565<\/p>\n
\u4e3b\u4ece\u521a\u521a\u8fde\u63a5\u7684\u65f6\u5019\uff0c\u8fdb\u884c\u5168\u91cf\u540c\u6b65\uff1b\u5168\u540c\u6b65\u7ed3\u675f\u540e\uff0c\u8fdb\u884c\u589e\u91cf\u540c\u6b65\u3002\u5f53\u7136\uff0c\u5982\u679c\u6709\u9700\u8981\uff0cslave \u5728\u4efb\u4f55\u65f6\u5019\u90fd\u53ef\u4ee5\u53d1\u8d77\u5168\u91cf\u540c\u6b65\u3002redis \u7b56\u7565\u662f\uff0c\u65e0\u8bba\u5982\u4f55\uff0c\u9996\u5148\u4f1a\u5c1d\u8bd5\u8fdb\u884c\u589e\u91cf\u540c\u6b65\uff0c\u5982\u4e0d\u6210\u529f\uff0c\u8981\u6c42\u4ece\u673a\u8fdb\u884c\u5168\u91cf\u540c\u6b65\u3002<\/p>\n
\u9700\u8981\u6ce8\u610f\uff1a\u5982\u679c\u591a\u4e2aSlave\u65ad\u7ebf\u4e86\uff0c\u9700\u91cd\u542f\u65f6\uff0c\u56e0\u4e3a\u53ea\u8981Slave\u542f\u52a8\uff0c\u5c31\u4f1a\u53d1\u9001sync\u8bf7\u6c42\u548c\u4e3b\u673a\u5168\u91cf\u540c\u6b65\uff0c\u5f53\u591a\u4e2a\u540c\u65f6\u51fa\u73b0\u7684\u65f6\u5019\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4Master IO\u5267\u589e\u5b95\u673a\u3002<\/p>\n
Redis\u4e3b\u4ece\u590d\u5236\u7684\u914d\u7f6e\u5341\u5206\u7b80\u5355\uff0c\u5b83\u53ef\u4ee5\u4f7f\u4ece\u670d\u52a1\u5668\u662f\u4e3b\u670d\u52a1\u5668\u7684\u5b8c\u5168\u62f7\u8d1d\u3002\u9700\u8981\u6e05\u695a\u77e5\u9053Redis\u4e3b\u4ece\u590d\u5236\u7684\u51e0\u70b9\u91cd\u8981\u5185\u5bb9\uff1a
1\uff09Redis\u4f7f\u7528\u5f02\u6b65\u590d\u5236\u3002\u4f46\u4eceRedis 2.8\u5f00\u59cb\uff0c\u4ece\u670d\u52a1\u5668\u4f1a\u5468\u671f\u6027\u7684\u5e94\u7b54\u4ece\u590d\u5236\u6d41\u4e2d\u5904\u7406\u7684\u6570\u636e\u91cf\u3002
2\uff09\u4e00\u4e2a\u4e3b\u670d\u52a1\u5668\u53ef\u4ee5\u6709\u591a\u4e2a\u4ece\u670d\u52a1\u5668\u3002
3\uff09\u4ece\u670d\u52a1\u5668\u4e5f\u53ef\u4ee5\u63a5\u53d7\u5176\u4ed6\u4ece\u670d\u52a1\u5668\u7684\u8fde\u63a5\u3002\u9664\u4e86\u591a\u4e2a\u4ece\u670d\u52a1\u5668\u8fde\u63a5\u5230\u4e00\u4e2a\u4e3b\u670d\u52a1\u5668\u4e4b\u5916\uff0c\u591a\u4e2a\u4ece\u670d\u52a1\u5668\u4e5f\u53ef\u4ee5\u8fde\u63a5\u5230\u4e00\u4e2a\u4ece\u670d\u52a1\u5668\u4e0a\uff0c\u5f62\u6210\u4e00\u4e2a\u56fe\u72b6\u7ed3\u6784\u3002
4\uff09Redis\u4e3b\u4ece\u590d\u5236\u4e0d\u963b\u585e\u4e3b\u670d\u52a1\u5668\u7aef\u3002\u4e5f\u5c31\u662f\u8bf4\u5f53\u82e5\u5e72\u4e2a\u4ece\u670d\u52a1\u5668\u5728\u8fdb\u884c\u521d\u59cb\u540c\u6b65\u65f6\uff0c\u4e3b\u670d\u52a1\u5668\u4ecd\u7136\u53ef\u4ee5\u5904\u7406\u8bf7\u6c42\u3002
5\uff09\u4e3b\u4ece\u590d\u5236\u4e5f\u4e0d\u963b\u585e\u4ece\u670d\u52a1\u5668\u7aef\u3002\u5f53\u4ece\u670d\u52a1\u5668\u8fdb\u884c\u521d\u59cb\u540c\u6b65\u65f6\uff0c\u5b83\u4f7f\u7528\u65e7\u7248\u672c\u7684\u6570\u636e\u6765\u5e94\u5bf9\u67e5\u8be2\u8bf7\u6c42\uff0c\u5047\u8bbe\u4f60\u5728redis.conf\u914d\u7f6e\u6587\u4ef6\u662f\u8fd9\u4e48\u914d\u7f6e\u7684\u3002\u5426\u5219\u7684\u8bdd\uff0c\u4f60\u53ef\u4ee5\u914d\u7f6e\u5f53\u590d\u5236\u6d41\u5173\u95ed\u65f6\u8ba9\u4ece\u670d\u52a1\u5668\u7ed9\u5ba2\u6237\u7aef\u8fd4\u56de\u4e00\u4e2a\u9519\u8bef\u3002\u4f46\u662f\u5f53\u521d\u59cb\u540c\u6b65\u5b8c\u6210\u540e\uff0c\u9700\u5220\u9664\u65e7\u6570\u636e\u96c6\u548c\u52a0\u8f7d\u65b0\u7684\u6570\u636e\u96c6\uff0c\u5728\u8fd9\u4e2a\u77ed\u6682\u65f6\u95f4\u5185\uff0c\u4ece\u670d\u52a1\u5668\u4f1a\u963b\u585e\u8fde\u63a5\u8fdb\u6765\u7684\u8bf7\u6c42\u3002
6\uff09\u4e3b\u4ece\u590d\u5236\u53ef\u4ee5\u7528\u6765\u589e\u5f3a\u6269\u5c55\u6027\uff0c\u4f7f\u7528\u591a\u4e2a\u4ece\u670d\u52a1\u5668\u6765\u5904\u7406\u53ea\u8bfb\u7684\u8bf7\u6c42\uff08\u6bd4\u5982\uff0c\u7e41\u91cd\u7684\u6392\u5e8f\u64cd\u4f5c\u53ef\u4ee5\u653e\u5230\u4ece\u670d\u52a1\u5668\u53bb\u505a\uff09\uff0c\u4e5f\u53ef\u4ee5\u7b80\u5355\u7684\u7528\u6765\u505a\u6570\u636e\u5197\u4f59\u3002
7\uff09\u4f7f\u7528\u4e3b\u4ece\u590d\u5236\u53ef\u4ee5\u4e3a\u4e3b\u670d\u52a1\u5668\u514d\u9664\u628a\u6570\u636e\u5199\u5165\u78c1\u76d8\u7684\u6d88\u8017\uff1a\u5728\u4e3b\u670d\u52a1\u5668\u7684redis.conf\u6587\u4ef6\u4e2d\u914d\u7f6e\u201c\u907f\u514d\u4fdd\u5b58\u201d\uff08\u6ce8\u91ca\u6389\u6240\u6709\u201c\u4fdd\u5b58\u201c\u547d\u4ee4\uff09\uff0c\u7136\u540e\u8fde\u63a5\u4e00\u4e2a\u914d\u7f6e\u4e3a\u201c\u8fdb\u884c\u4fdd\u5b58\u201d\u7684\u4ece\u670d\u52a1\u5668\u5373\u53ef\u3002\u4f46\u662f\u8fd9\u4e2a\u914d\u7f6e\u8981\u786e\u4fdd\u4e3b\u670d\u52a1\u5668\u4e0d\u4f1a\u81ea\u52a8\u91cd\u542f\uff08\u8981\u83b7\u5f97\u66f4\u591a\u4fe1\u606f\u8bf7\u9605\u8bfb\u4e0b\u4e00\u6bb5\uff09<\/p>\n
\u4e3b\u4ece\u590d\u5236\u7684\u4e00\u4e9b\u7279\u70b9\uff1a<\/p>\n
1\uff09\u91c7\u7528\u5f02\u6b65\u590d\u5236\uff1b
2\uff09\u4e00\u4e2a\u4e3bredis\u53ef\u4ee5\u542b\u6709\u591a\u4e2a\u4eceredis\uff1b
3\uff09\u6bcf\u4e2a\u4eceredis\u53ef\u4ee5\u63a5\u6536\u6765\u81ea\u5176\u4ed6\u4eceredis\u670d\u52a1\u5668\u7684\u8fde\u63a5\uff1b
4\uff09\u4e3b\u4ece\u590d\u5236\u5bf9\u4e8e\u4e3bredis\u670d\u52a1\u5668\u6765\u8bf4\u662f\u975e\u963b\u585e\u7684\uff0c\u8fd9\u610f\u5473\u7740\u5f53\u4ece\u670d\u52a1\u5668\u5728\u8fdb\u884c\u4e3b\u4ece\u590d\u5236\u540c\u6b65\u8fc7\u7a0b\u4e2d\uff0c\u4e3bredis\u4ecd\u7136\u53ef\u4ee5\u5904\u7406\u5916\u754c\u7684\u8bbf\u95ee\u8bf7\u6c42\uff1b
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