{"id":201820,"date":"2025-05-10T13:44:48","date_gmt":"2025-05-10T05:44:48","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201820\/"},"modified":"2025-05-10T13:44:48","modified_gmt":"2025-05-10T05:44:48","slug":"redis%e5%ae%9e%e7%8e%b0%e5%88%86%e5%b8%83%e5%bc%8f%e9%94%81%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201820\/","title":{"rendered":"Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u8be6\u89e3"},"content":{"rendered":"

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

Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u8be6\u89e3<\/h1>\n

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

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\u4e00\u3001\u524d\u8a00<\/h2>\n

\u4e3a\u4ec0\u4e48\u9700\u8981\u5206\u5e03\u5f0f\u9501\uff1f<\/h3>\n

\u5728\u6211\u4eec\u7684\u65e5\u5e38\u5f00\u53d1\u4e2d\uff0c\u4e00\u4e2a\u8fdb\u7a0b\u4e2d\u5f53\u591a\u7ebf\u7a0b\u7684\u53bb\u7ade\u4e89\u67d0\u4e00\u8d44\u6e90\u7684\u65f6\u5019\uff0c\u6211\u4eec\u901a\u5e38\u4f1a\u7528\u4e00\u628a\u9501\u6765\u4fdd\u8bc1\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u83b7\u53d6\u5230\u8d44\u6e90\u3002\u5982\u52a0\u4e0asynchronize\u5173\u952e\u5b57\u6216ReentrantLock\u9501\u7b49\u64cd\u4f5c\u3002<\/p>\n

\u90a3\u4e48\uff0c\u5982\u679c\u662f\u591a\u4e2a\u8fdb\u7a0b\u76f8\u4e92\u7ade\u4e89\u4e00\u4e2a\u8d44\u6e90\uff0c\u5982\u4f55\u4fdd\u8bc1\u8d44\u6e90\u53ea\u4f1a\u88ab\u4e00\u4e2a\u64cd\u4f5c\u8005\u6301\u6709\u5462\uff1f<\/p>\n

\u4f8b\u5982\uff1a\u5fae\u670d\u52a1\u7684\u67b6\u6784\u4e0b\uff0c\u591a\u4e2a\u5e94\u7528\u670d\u52a1\u8981\u540c\u65f6\u5bf9\u540c\u4e00\u6761\u6570\u636e\u505a\u4fee\u6539\uff0c\u90a3\u4e48\u8981\u786e\u4fdd\u6570\u636e\u7684\u6b63\u786e\u6027\uff0c\u5c31\u53ea\u80fd\u6709\u4e00\u4e2a\u5e94\u7528\u4fee\u6539\u6210\u529f\u3002<\/p>\n

server1\u3001server2\u3001server3 \u8fd9\u4e09\u4e2a\u670d\u52a1\u90fd\u8981\u4fee\u6539amount\u8fd9\u4e2a\u6570\u636e\uff0c\u6bcf\u4e2a\u670d\u52a1\u66f4\u65b0\u7684\u503c\u4e0d\u540c\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u6570\u636e\u7684\u6b63\u786e\u6027\uff0c\u4e09\u4e2a\u670d\u52a1\u90fd\u5411lock server\u670d\u52a1\u7533\u8bf7\u4fee\u6539\u6743\u9650\uff0c\u6700\u7ec8server2\u62ff\u5230\u4e86\u4fee\u6539\u6743\u9650\uff0c\u5373server2\u5c06amount\u66f4\u65b0\u4e3a2\uff0c\u5176\u4ed6\u670d\u52a1\u7531\u4e8e\u6ca1\u6709\u83b7\u53d6\u5230\u4fee\u6539\u6743\u9650\u5219\u8fd4\u56de\u66f4\u65b0\u5931\u8d25\u3002<\/p>\n

<\/p>\n

\u4e8c\u3001\u57fa\u4e8eredis\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501<\/h2>\n

\u4e3a\u4ec0\u4e48redis\u53ef\u4ee5\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\uff1f<\/h3>\n

\u56e0\u4e3aredis\u662f\u4e00\u4e2a\u5355\u72ec\u7684\u975e\u4e1a\u52a1\u670d\u52a1\uff0c\u4e0d\u4f1a\u53d7\u5230\u5176\u4ed6\u4e1a\u52a1\u670d\u52a1\u7684\u9650\u5236\uff0c\u6240\u6709\u7684\u4e1a\u52a1\u670d\u52a1\u90fd\u53ef\u4ee5\u5411redis\u53d1\u9001\u5199\u5165\u547d\u4ee4\uff0c\u4e14\u53ea\u6709\u4e00\u4e2a\u4e1a\u52a1\u670d\u52a1\u53ef\u4ee5\u5199\u5165\u547d\u4ee4\u6210\u529f\uff0c\u90a3\u4e48\u8fd9\u4e2a\u5199\u5165\u547d\u4ee4\u6210\u529f\u7684\u670d\u52a1\u5373\u83b7\u5f97\u4e86\u9501\uff0c\u53ef\u4ee5\u8fdb\u884c\u540e\u7eed\u5bf9\u8d44\u6e90\u7684\u64cd\u4f5c\uff0c\u5176\u4ed6\u672a\u5199\u5165\u6210\u529f\u7684\u670d\u52a1\uff0c\u5219\u8fdb\u884c\u5176\u4ed6\u5904\u7406\u3002<\/p>\n

\u5982\u4f55\u5b9e\u73b0\uff1f<\/h3>\n

redis\u7684String\u7c7b\u578b\u5c31\u53ef\u4ee5\u5b9e\u73b0\u3002<\/p>\n

\u9501\u7684\u83b7\u53d6<\/h4>\n

setnx\u547d\u4ee4\uff1a\u8868\u793aSET if Not eXists\uff0c\u5373\u5982\u679c key \u4e0d\u5b58\u5728\uff0c\u624d\u4f1a\u8bbe\u7f6e\u5b83\u7684\u503c\uff0c\u5426\u5219\u4ec0\u4e48\u4e5f\u4e0d\u505a\u3002<\/p>\n

\u4e24\u4e2a\u5ba2\u6237\u7aef\u540c\u65f6\u5411redis\u5199\u5165try_lock\uff0c\u5ba2\u6237\u7aef1\u5199\u5165\u6210\u529f\uff0c\u5373\u83b7\u53d6\u5206\u5e03\u5f0f\u9501\u6210\u529f\u3002\u5ba2\u6237\u7aef2\u5199\u5165\u5931\u8d25\uff0c\u5219\u83b7\u53d6\u5206\u5e03\u5f0f\u9501\u5931\u8d25\u3002<\/p>\n

<\/p>\n

<\/p>\n

\u9501\u7684\u91ca\u653e<\/h4>\n

\u5f53\u5ba2\u6237\u7aef1\u64cd\u4f5c\u5b8c\u540e\uff0c\u91ca\u653e\u9501\u8d44\u6e90\uff0c\u5373\u5220\u9664try_lock\u3002\u90a3\u4e48\u6b64\u65f6\u5ba2\u6237\u7aef2\u518d\u6b21\u5c1d\u8bd5\u83b7\u53d6\u9501\u65f6\uff0c\u5219\u4f1a\u83b7\u53d6\u9501\u6210\u529f\u3002<\/p>\n

<\/p>\n

<\/p>\n

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\u5047\u5982\u5ba2\u6237\u7aef1\u5728\u83b7\u53d6\u5230\u9501\u8d44\u6e90\u540e\uff0c\u670d\u52a1\u5b95\u673a\u4e86\uff0c\u90a3\u4e48\u8fd9\u4e2atry_lock\u4f1a\u4e00\u76f4\u5b58\u5728redis\u4e2d\uff0c\u90a3\u4e48\u5176\u4ed6\u670d\u52a1\u5c31\u6c38\u8fdc\u65e0\u6cd5\u83b7\u53d6\u5230\u9501\u4e86\u3002<\/p>\n

\u5982\u4f55\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u5462\uff1f<\/p>\n

\u4e09\u3001\u5982\u4f55\u907f\u514d\u6b7b\u9501\uff1f\u9501\u7684\u8fc7\u671f\u65f6\u95f4\u5982\u4f55\u8bbe\u7f6e\uff1f<\/h2>\n

\u907f\u514d\u6b7b\u9501<\/h3>\n

\u8bbe\u7f6e\u952e\u8fc7\u671f\u65f6\u95f4\uff0c\u8d85\u8fc7\u8fd9\u4e2a\u65f6\u95f4\u5373\u7ed9key\u5220\u9664\u6389\u3002<\/p>\n

\u8fd9\u6837\u7684\u8bdd\uff0c\u5c31\u7b97\u5f53\u524d\u670d\u52a1\u83b7\u53d6\u5230\u9501\u540e\u5b95\u673a\u4e86\uff0c\u8fd9\u4e2akey\u4e5f\u4f1a\u5728\u4e00\u5b9a\u65f6\u95f4\u540e\u88ab\u5220\u9664\uff0c\u5176\u4ed6\u670d\u52a1\u7167\u6837\u53ef\u4ee5\u7ee7\u7eed\u83b7\u53d6\u9501\u3002<\/p>\n

\u7ed9serverLock\u952e\u8bbe\u7f6e\u4e00\u4e2a10\u79d2\u7684\u8fc7\u671f\u65f6\u95f4\uff0c10\u79d2\u540e\u4f1a\u81ea\u52a8\u5220\u9664\u8be5\u952e\u3002<\/p>\n

<\/p>\n

\u8fd9\u6837\u867d\u7136\u89e3\u51b3\u4e86\u4e0a\u9762\u8bf4\u7684\u95ee\u9898\uff0c\u4f46\u662f\u53c8\u4f1a\u5f15\u5165\u65b0\u7684\u95ee\u9898\u3002<\/p>\n

\u5047\u5982\u670d\u52a1A\u52a0\u9501\u6210\u529f\uff0c\u9501\u4f1a\u572810s\u540e\u81ea\u52a8\u91ca\u653e\uff0c\u4f46\u7531\u4e8e\u4e1a\u52a1\u590d\u6742\uff0c\u6267\u884c\u65f6\u95f4\u8fc7\u957f\uff0c10s\u5185\u8fd8\u6ca1\u6267\u884c\u5b8c\uff0c\u6b64\u65f6\u9501\u5df2\u7ecf\u88abredis\u81ea\u52a8\u91ca\u653e\u6389\u4e86\u3002\u6b64\u65f6\u670d\u52a1B\u5c31\u91cd\u65b0\u83b7\u53d6\u5230\u4e86\u8be5\u9501\uff0c\u670d\u52a1B\u5f00\u59cb\u6267\u884c\u4ed6\u7684\u4e1a\u52a1\uff0c\u670d\u52a1A\u5728\u6267\u884c\u5230\u7b2c12s\u7684\u65f6\u5019\u6267\u884c\u5b8c\u4e86\uff0c\u90a3\u4e48\u670d\u52a1A\u4f1a\u53bb\u91ca\u653e\u9501\uff0c\u5219\u6b64\u65f6\u91ca\u653e\u7684\u5374\u662f\u670d\u52a1B\u521a\u83b7\u53d6\u5230\u7684\u9501\u3002<\/p>\n

\u8fd9\u4f1a\u6709\u9501\u8fc7\u671f\u548c\u91ca\u653e\u5176\u4ed6\u670d\u52a1\u9501\u8fd9\u79cd\u4e25\u91cd\u7684\u95ee\u9898\u3002<\/p>\n

\u9501\u8fc7\u671f\u5904\u7406<\/h3>\n

\u90a3\u4e48\u9501\u8fc7\u671f\u8fd9\u79cd\u95ee\u9898\u8be5\u5982\u4f55\u5904\u7406\u7684\uff1f<\/p>\n

\u867d\u7136\u53ef\u4ee5\u901a\u8fc7\u589e\u52a0\u5220\u9664key\u65f6\u95f4\u6765\u5904\u7406\u8fd9\u4e2a\u95ee\u9898\uff0c\u4f46\u662f\u5e76\u6ca1\u6709\u4ece\u6839\u672c\u4e0a\u89e3\u51b3\u3002\u5047\u8bbe\u8bbe\u4e2a100s\uff0c\u7edd\u5927\u591a\u6570\u90fd\u662f1s\u540e\u5c31\u4f1a\u91ca\u653e\u9501\uff0c\u4f46\u662f\u7531\u4e8e\u670d\u52a1\u5b95\u673a\uff0c\u5219\u4f1a\u5bfc\u81f4100s\u5185\u5176\u4ed6\u670d\u52a1\u90fd\u65e0\u6cd5\u83b7\u53d6\u5230\u9501\uff0c\u8fd9\u4e5f\u662f\u707e\u96be\u6027\u7684\u3002<\/p>\n

\u6211\u4eec\u53ef\u4ee5\u8fd9\u6837\u505a\uff0c\u5728\u9501\u5c06\u8981\u8fc7\u671f\u7684\u65f6\u5019\uff0c\u5982\u679c\u670d\u52a1\u8fd8\u6ca1\u6709\u5904\u7406\u5b8c\u4e1a\u52a1\uff0c\u90a3\u4e48\u5c06\u8fd9\u4e2a\u9501\u518d\u7eed\u4e00\u6bb5\u65f6\u95f4\u3002\u6bd4\u5982\u8bbe\u7f6ekey\u572810s\u540e\u8fc7\u671f\uff0c\u90a3\u4e48\u518d\u5f00\u542f\u4e00\u4e2a\u5b88\u62a4\u7ebf\u7a0b\uff0c\u5728\u7b2c8s\u7684\u65f6\u5019\u68c0\u6d4b\u670d\u52a1\u662f\u5426\u5904\u7406\u5b8c\uff0c\u5982\u679c\u6ca1\u6709\uff0c\u5219\u5c06\u8fd9\u4e2akey\u518d\u7eed10s\u540e\u8fc7\u671f\u3002<\/p>\n

\u5728Redisson\uff08Redis SDK\u5ba2\u6237\u7aef\uff09\u4e2d\uff0c\u5c31\u5df2\u7ecf\u5e2e\u6211\u4eec\u5b9e\u73b0\u4e86\u8fd9\u4e2a\u529f\u80fd\uff0c\u8fd9\u4e2a\u81ea\u52a8\u7eed\u65f6\u7684\u6211\u4eec\u79f0\u5176\u4e3a\u201d\u770b\u95e8\u72d7\u201d\u3002<\/p>\n

<\/p>\n

\u91ca\u653e\u5176\u4ed6\u670d\u52a1\u7684\u9501\u5982\u4f55\u5904\u7406\u5462\uff1f<\/h4>\n

\u6bcf\u4e2a\u670d\u52a1\u5728\u8bbe\u7f6evalue\u7684\u65f6\u5019\uff0c\u5e26\u4e0a\u81ea\u5df1\u670d\u52a1\u7684\u552f\u4e00\u6807\u8bc6\uff0c\u5982UUID\uff0c\u6216\u8005\u4e00\u4e9b\u4e1a\u52a1\u4e0a\u7684\u72ec\u7279\u6807\u8bc6\u3002\u8fd9\u6837\u5728\u5220\u9664key\u7684\u65f6\u5019\uff0c\u53ea\u5220\u9664\u81ea\u5df1\u670d\u52a1\u4e4b\u524d\u6dfb\u52a0\u7684key\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n

\u5982\u679c\u9700\u8981\u5148\u67e5\u770b\u9501\u662f\u5426\u662f\u81ea\u5df1\u670d\u52a1\u6dfb\u52a0\u7684\uff0c\u9700\u8981\u5148get\u53d6\u51fa\u6765\u5224\u65ad\uff0c\u7136\u540e\u518d\u8fdb\u884cdel\u3002\u8fd9\u6837\u7684\u8bdd\u5c31\u65e0\u6cd5\u4fdd\u8bc1\u539f\u5b50\u6027\u4e86\u3002<\/p>\n

\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7Lua\u811a\u672c\uff0c\u5c06\u8fd9\u4e24\u4e2a\u64cd\u4f5c\u5408\u5e76\u6210\u4e00\u4e2a\u64cd\u4f5c\uff0c\u5c31\u53ef\u4ee5\u4fdd\u8bc1\u5176\u539f\u5b50\u6027\u4e86\u3002<\/p>\n

Lua\u811a\u672c\u7684\u8bdd\uff0c\u6211\u4e5f\u4e0d\u4f1a\uff0c\u7528\u5230\u7684\u65f6\u5019\u767e\u5ea6\u5c31\u5b8c\u4e86\u3002<\/p>\n

\u5982\u679c\u662f\u5728\u5355redis\u5b9e\u4f8b\u7684\u60c5\u51b5\u4e0b\uff0c\u4e0a\u9762\u7684\u5df2\u7ecf\u5b8c\u5168\u5b9e\u73b0\u4e86\u5206\u5e03\u5f0f\u9501\u7684\u529f\u80fd\u4e86\u3002<\/p>\n

\u90a3\u4e48redis\u5b95\u673a\u4e86\u5462\uff1f<\/h4>\n

\u8fd9\u4e2a\u65f6\u5019\u5c31\u5f97\u5f15\u5165redis\u96c6\u7fa4\u4e86\u3002<\/p>\n

\u4f46\u662f\u6d89\u53ca\u5230redis\u96c6\u7fa4\uff0c\u5c31\u4f1a\u6709\u65b0\u7684\u95ee\u9898\u51fa\u73b0\uff0c\u5047\u8bbe\u662f\u4e3b\u4ece\u96c6\u7fa4\uff0c\u4e14\u4e3b\u4ece\u6570\u636e\u5e76\u4e0d\u662f\u5f3a\u4e00\u81f4\u6027\u3002\u5f53\u4e3b\u8282\u70b9\u5b95\u673a\u540e\uff0c\u4e3b\u8282\u70b9\u7684\u6570\u636e\u8fd8\u672a\u6765\u5f97\u53ca\u540c\u6b65\u5230\u4ece\u8282\u70b9\uff0c\u8fdb\u884c\u4e3b\u4ece\u5207\u6362\u540e\uff0c\u65b0\u7684\u4e3b\u8282\u70b9\u5e76\u6ca1\u6709\u8001\u7684\u4e3b\u8282\u70b9\u7684\u5168\u90e8\u6570\u636e\uff0c\u8fd9\u5c31\u4f1a\u5bfc\u81f4\u521a\u5199\u5165\u5230\u8001\u7684\u4e3b\u8282\u70b9\u7684\u9501\u5728\u65b0\u7684\u4e3b\u8282\u70b9\u5e76\u6ca1\u6709\uff0c\u5176\u4ed6\u670d\u52a1\u6765\u83b7\u53d6\u9501\u65f6\u8fd8\u662f\u4f1a\u52a0\u9501\u6210\u529f\u3002\u6b64\u65f6\u5219\u4f1a\u67092\u4e2a\u670d\u52a1\u90fd\u53ef\u4ee5\u64cd\u4f5c\u516c\u5171\u8d44\u6e90\uff0c\u6b64\u65f6\u7684\u5206\u5e03\u5f0f\u9501\u5219\u662f\u4e0d\u5b89\u5168\u7684\u3002<\/p>\n

redis\u7684\u4f5c\u8005\u4e5f\u60f3\u5230\u8fd9\u4e2a\u95ee\u9898\uff0c\u4e8e\u662f\u4ed6\u53d1\u660e\u4e86RedLock\u3002<\/p>\n

\u56db\u3001RedLock<\/h2>\n

\u4ec0\u4e48\u662fRedLock\uff1f<\/h3>\n

\u8981\u5b9e\u73b0RedLock\uff0c\u9700\u8981\u81f3\u5c115\u4e2a\u5b9e\u4f8b\uff08\u5b98\u65b9\u63a8\u8350\uff09\uff0c\u4e14\u6bcf\u4e2a\u5b9e\u4f8b\u90fd\u662fmaster\uff0c\u4e0d\u9700\u8981\u4ece\u5e93\u548c\u54e8\u5175\u3002<\/p>\n

\u5b9e\u73b0\u6d41\u7a0b<\/h3>\n

1\u3001\u5ba2\u6237\u7aef\u5148\u83b7\u53d6\u5f53\u524d\u65f6\u95f4\u6233T1<\/p>\n

2\u3001\u5ba2\u6237\u7aef\u4f9d\u6b21\u54115\u4e2amaster\u5b9e\u4f8b\u53d1\u8d77\u52a0\u9501\u547d\u4ee4\uff0c\u4e14\u6bcf\u4e2a\u8bf7\u6c42\u90fd\u4f1a\u8bbe\u7f6e\u8d85\u65f6\u65f6\u95f4\uff08\u6beb\u79d2\u7ea7\uff0c\u6ce8\u610f\uff1a\u4e0d\u662f\u9501\u7684\u8d85\u65f6\u65f6\u95f4\uff09\uff0c\u5982\u679c\u67d0\u4e00\u4e2amaster\u5b9e\u4f8b\u7531\u4e8e\u7f51\u7edc\u7b49\u539f\u56e0\u5bfc\u81f4\u52a0\u9501\u5931\u8d25\uff0c\u5219\u7acb\u5373\u60f3\u4e0b\u4e00\u4e2amaster\u5b9e\u4f8b\u7533\u8bf7\u52a0\u9501\u3002<\/p>\n

3\u3001\u5f53\u5ba2\u6237\u7aef\u52a0\u9501\u6210\u529f\u7684\u8bf7\u6c42\u5927\u4e8e\u7b49\u4e8e3\u4e2a\u65f6\uff0c\u4e14\u518d\u6b21\u83b7\u53d6\u5f53\u524d\u65f6\u95f4\u6233T2\uff0c<\/p>\n

\u5f53\u65f6\u95f4\u6233T2 – \u65f6\u95f4\u6233T1 <\/p>\n

4\u3001\u52a0\u9501\u6210\u529f\uff0c\u5f00\u59cb\u64cd\u4f5c\u516c\u5171\u8d44\u6e90\uff0c\u8fdb\u884c\u540e\u7eed\u4e1a\u52a1\u64cd\u4f5c<\/p>\n

5\u3001\u52a0\u9501\u5931\u8d25\uff0c\u5411\u6240\u6709redis\u8282\u70b9\u53d1\u9001\u9501\u91ca\u653e\u547d\u4ee4<\/p>\n

\u5373\u5f53\u5ba2\u6237\u7aef\u5728\u5927\u591a\u6570redis\u5b9e\u4f8b\u4e0a\u7533\u8bf7\u52a0\u9501\u6210\u529f\u540e\uff0c\u4e14\u52a0\u9501\u603b\u8017\u65f6\u5c0f\u4e8e\u9501\u8fc7\u671f\u65f6\u95f4\uff0c\u5219\u8ba4\u4e3a\u52a0\u9501\u6210\u529f\u3002 <\/p>\n

 \u91ca\u653e\u9501\u9700\u8981\u5411\u5168\u90e8\u8282\u70b9\u53d1\u9001\u9501\u91ca\u653e\u547d\u4ee4\u3002<\/p>\n

\u7b2c3\u6b65\u4e3a\u5565\u8981\u8ba1\u7b97\u7533\u8bf7\u9501\u524d\u540e\u7684\u603b\u8017\u65f6\u4e0e\u9501\u91ca\u653e\u65f6\u95f4\u8fdb\u884c\u5bf9\u6bd4\u5462?<\/p>\n

\u56e0\u4e3a\u5982\u679c\u7533\u8bf7\u9501\u7684\u603b\u8017\u65f6\u5df2\u7ecf\u8d85\u8fc7\u4e86\u9501\u91ca\u653e\u65f6\u95f4\uff0c\u90a3\u4e48\u53ef\u80fd\u524d\u9762\u7533\u8bf7redis\u7684\u9501\u5df2\u7ecf\u88ab\u91ca\u653e\u6389\u4e86\uff0c\u4fdd\u8bc1\u4e0d\u4e86\u5927\u4e8e\u7b49\u4e8e3\u4e2a\u5b9e\u4f8b\u90fd\u6709\u9501\u5b58\u5728\u4e86\uff0c\u9501\u4e5f\u5c31\u6ca1\u6709\u610f\u4e49\u4e86<\/p>\n

\u8fd9\u6837\u7684\u8bdd\u5206\u5e03\u5f0f\u9501\u5c31\u771f\u7684\u6ca1\u95ee\u9898\u4e86\u561b\uff1f<\/p>\n

1\u3001\u5f975\u4e2aredis\u5b9e\u4f8b\uff0c\u6210\u672c\u5927\u5927\u589e\u52a0<\/p>\n

2\u3001\u53ef\u4ee5\u901a\u8fc7\u4e0a\u9762\u7684\u6d41\u7a0b\u611f\u53d7\u5230\uff0c\u8fd9\u4e2aRedLock\u9501\u592a\u91cd\u4e86<\/p>\n

3\u3001\u4e3b\u4ece\u5207\u6362\u8fd9\u79cd\u573a\u666f\u7edd\u5927\u591a\u6570\u7684\u65f6\u5019\u4e0d\u4f1a\u78b0\u5230\uff0c\u5076\u5c14\u78b0\u5230\u7684\u8bdd\uff0c\u4fdd\u8bc1\u6700\u7ec8\u7684\u515c\u5e95\u64cd\u4f5c\u6211\u89c9\u5f97\u4e5f\u6ca1\u5565\u95ee\u9898\u3002<\/p>\n

4\u3001\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\u7684NPC\u95ee\u9898<\/p>\n

\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\u7684NPC\u95ee\u9898<\/h3>\n

\uff08\u53ef\u4e0d\u662f\u6e38\u620f\u91cc\u7684NPC\u63d0\u95ee\u54e6\uff09<\/p>\n

N\uff1aNetwork Delay\uff0c\u7f51\u7edc\u5ef6\u8fdf<\/p>\n

P\uff1aProcess Pause\uff0c\u8fdb\u7a0b\u6682\u505c\uff08GC\uff09<\/p>\n

C\uff1aClock Drift\uff0c\u65f6\u949f\u6f02\u79fb<\/p>\n

\u4e3e\u4e2a\u4f8b\u5b50\u5427\uff1a<\/p>\n

1\u3001\u5ba2\u6237\u7aef 1 \u8bf7\u6c42\u9501\u5b9a\u8282\u70b9 A\u3001B\u3001C\u3001D\u3001E<\/p>\n

2\u3001\u5ba2\u6237\u7aef 1 \u7684\u62ff\u5230\u9501\u540e\uff0c\u8fdb\u5165 GC\uff08\u65f6\u95f4\u6bd4\u8f83\u4e45\uff09<\/p>\n

3\u3001\u6240\u6709 Redis \u8282\u70b9\u4e0a\u7684\u9501\u90fd\u8fc7\u671f\u4e86<\/p>\n

4\u3001\u5ba2\u6237\u7aef 2 \u83b7\u53d6\u5230\u4e86 A\u3001B\u3001C\u3001D\u3001E \u4e0a\u7684\u9501<\/p>\n

5\u3001\u5ba2\u6237\u7aef 1 GC \u7ed3\u675f\uff0c\u8ba4\u4e3a\u6210\u529f\u83b7\u53d6\u9501<\/p>\n

6\u3001\u5ba2\u6237\u7aef 2 \u4e5f\u8ba4\u4e3a\u83b7\u53d6\u5230\u4e86\u9501\uff0c\u53d1\u751f\u3010\u51b2\u7a81\u3011<\/p>\n

<\/p>\n

\u5728\u7b2c2\u6b65\u5df2\u7ecf\u6210\u529f\u83b7\u53d6\u5230\u9501\u540e\uff0c\u7531\u4e8eGC\u65f6\u95f4\u8d85\u8fc7\u9501\u8fc7\u671f\u65f6\u95f4\uff0c\u5bfc\u81f4GC\u5b8c\u6210\u540e\u5176\u4ed6\u5ba2\u6237\u7aef\u4e5f\u80fd\u591f\u83b7\u53d6\u5230\u9501\uff0c\u6b64\u65f62\u4e2a\u5ba2\u6237\u7aef\u90fd\u4f1a\u6301\u6709\u9501\u3002\u5c31\u4f1a\u6709\u95ee\u9898\u3002<\/p>\n

\u8fd9\u4e2a\u95ee\u9898\u65e0\u8bba\u662fredlock\u8fd8\u662fzookeeper\u90fd\u4f1a\u6709\u8fd9\u79cd\u95ee\u9898\u3002\u4e0d\u505a\u4e1a\u52a1\u4e0a\u7684\u515c\u5e95\u64cd\u4f5c\u5c31\u6ca1\u5f97\u89e3\u3002<\/p>\n

\u65f6\u949f\u6f02\u79fb\u95ee\u9898\u4e5f\u53ea\u80fd\u662f\u5c3d\u91cf\u907f\u514d\u5427\u3002\u65e0\u6cd5\u505a\u5230\u6839\u672c\u89e3\u51b3\u3002<\/p>\n

\u4e2a\u4eba\u601d\u8003<\/h3>\n

\u7528RedLock\u89c9\u5f97\u6027\u4ef7\u6bd4\u5f88\u4f4e\u3002\u539f\u56e0\u5982\u4e0b<\/p>\n

1\u3001\u5f97\u989d\u5916\u7684\u591a\u53f0\u670d\u52a1\u5668\u90e8\u7f72redis\uff0c\u6bcf\u53f0\u670d\u52a1\u5668\u53ef\u90fd\u662f\u94b1\u554a\uff0c\u800c\u4e14\u90e8\u7f72\u548c\u8fd0\u7ef4\u7684\u6210\u672c\u4e5f\u589e\u52a0\u4e86\u3002<\/p>\n

2\u3001\u7528RedLock\u611f\u89c9\u592a\u91cd\u4e86\uff0c\u6548\u7387\u4f1a\u5f88\u4f4e\uff0c\u65e2\u7136\u7528\u4e86redis\uff0c\u5c31\u662f\u4e3a\u4e86\u63d0\u5347\u6548\u7387\uff0c\u7ed3\u679c\u4e00\u4e2a\u9501\u5927\u5927\u964d\u4f4e\u4e86\u6548\u7387<\/p>\n

3\u3001\u5982\u679c\u5728\u96c6\u7fa4\u60c5\u51b5\u4e0b\u6709\u9501\u4e22\u5931\u7684\u60c5\u51b5\uff0c\u6211\u4eec\u4e1a\u52a1\u4e0a\u505a\u597d\u515c\u5e95\u64cd\u4f5c\u5c31\u53ef\u4ee5\u4e86\uff0c\u53ef\u4ee5\u4e0d\u7528\u4e0aRedLock\u3002<\/p>\n

4\u3001\u6bd5\u7adf\u96c6\u7fa4\u60c5\u51b5\u4e0b\u4e3b\u4ece\u5207\u6362\u7684\u573a\u666f\u8fd8\u662f\u6781\u5c11\u7684\uff0c\u4e3a\u4e86\u6781\u5c11\u7684\u60c5\u51b5\u53bb\u6d6a\u8d39\u5927\u91cf\u7684\u6027\u80fd\uff0c\u611f\u89c9\u5212\u4e0d\u6765<\/p>\n

5\u3001\u5c31\u7b97\u662f\u4e0a\u4e86RedLock\uff0c\u4e5f\u662f\u907f\u514d\u4e0d\u4e86NPC\u95ee\u9898\u7684\uff0c\u8fd8\u4e0d\u662f\u5f97\u4e1a\u52a1\u4e0a\u505a\u515c\u5e95\u3002<\/p>\n

\u804a\u4e86\u8fd9\u4e48\u591a\u7684redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u3002\u4e5f\u7b80\u5355\u4e86\u89e3\u4e0bzookeeper\u662f\u5982\u4f55\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u7684\u5427\u3002<\/p>\n

\u4e94\u3001\u57fa\u4e8ezookeeper\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501<\/h2>\n

\u4ec0\u4e48\u662fzookeeper\uff08zk\uff09\uff1f<\/h3>\n

zk\u662f\u4e00\u4e2a\u5206\u5e03\u5f0f\u534f\u8c03\u670d\u52a1\uff0c\u529f\u80fd\u5305\u62ec\uff1a\u914d\u7f6e\u7ef4\u62a4\u3001\u57df\u540d\u670d\u52a1\u3001\u5206\u5e03\u5f0f\u540c\u6b65\u3001\u7ec4\u670d\u52a1\u7b49\u3002<\/p>\n

zk\u7684\u6570\u636e\u7ed3\u6784\u8ddfUnix\u6587\u4ef6\u7cfb\u7edf\u7c7b\u4f3c\u3002\u662f\u4e00\u9897\u6811\u5f62\u7ed3\u6784\uff0c\u8fd9\u91cc\u4e0d\u505a\u8be6\u7ec6\u4ecb\u7ecd\u3002<\/p>\n

<\/p>\n

zookeeper\u8282\u70b9\u4ecb\u7ecd<\/h3>\n

zk\u7684\u8282\u70b9\u79f0\u4e4b\u4e3aznode\u8282\u70b9\uff0cznode\u8282\u70b9\u5206\u4e24\u79cd\u7c7b\u578b\uff1a<\/p>\n

1\u3001\u4e34\u65f6\u8282\u70b9\uff08Ephemeral\uff09:\u5f53\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u65ad\u5f00\u8fde\u63a5\u540e\uff0c\u4e34\u65f6znode\u8282\u70b9\u5c31\u4f1a\u88ab\u81ea\u52a8\u5220\u9664<\/p>\n

2\u3001\u6301\u4e45\u8282\u70b9\uff08Persistent\uff09:\u5f53\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u65ad\u5f00\u8fde\u63a5\u540e\uff0c\u6301\u4e45znode\u8282\u70b9\u4e0d\u4f1a\u88ab\u81ea\u52a8\u5220\u9664<\/p>\n

znode\u8282\u70b9\u8fd8\u6709\u4e00\u4e9b\u7279\u6027\uff1a<\/p>\n

1\u3001\u8282\u70b9\u6709\u5e8f\uff1a\u5728\u4e00\u4e2a\u7236\u8282\u70b9\u4e0b\u521b\u5efa\u5b50\u8282\u70b9\uff0czk\u63d0\u4f9b\u4e86\u4e00\u4e2a\u53ef\u9009\u7684\u6709\u5e8f\u6027\uff0c\u521b\u5efa\u5b50\u8282\u70b9\u65f6\u4f1a\u6839\u636e\u5f53\u524d\u5b50\u8282\u70b9\u6570\u91cf\u7ed9\u8282\u70b9\u540d\u6dfb\u52a0\u5e8f\u53f7\u3002\u4f8b\uff1a\/root\u4e0b\u521b\u5efa\/java\uff0c\u751f\u6210\u7684\u8282\u70b9\u540d\u79f0\u5219\u4e3ajava0001\uff0c\/root\/java0001\u3002<\/p>\n

2\u3001\u4e34\u65f6\u8282\u70b9\uff1a\u5f53\u4f1a\u8bdd\u7ed3\u675f\u6216\u8d85\u65f6\uff0c\u81ea\u52a8\u5220\u9664\u8282\u70b9<\/p>\n

3\u3001\u4e8b\u4ef6\u76d1\u542c\uff1a\u5f53\u8282\u70b9\u6709\u521b\u5efa\uff0c\u5220\u9664\uff0c\u6570\u636e\u4fee\u6539\uff0c\u5b50\u8282\u70b9\u53d8\u66f4\u7684\u65f6\u5019\uff0czk\u4f1a\u901a\u77e5\u5ba2\u6237\u7aef\u7684\u3002<\/p>\n

zookeeper\u5206\u5e03\u5f0f\u9501\u7684\u5b9e\u73b0<\/h3>\n

zookeeper\u5c31\u662f\u901a\u8fc7\u4e34\u65f6\u8282\u70b9\u548c\u8282\u70b9\u6709\u5e8f\u6765\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u7684\u3002<\/p>\n

1\u3001\u6bcf\u4e2a\u83b7\u53d6\u9501\u7684\u7ebf\u7a0b\u4f1a\u5728zk\u7684\u67d0\u4e00\u4e2a\u76ee\u5f55\u4e0b\u521b\u5efa\u4e00\u4e2a\u4e34\u65f6\u6709\u5e8f\u7684\u8282\u70b9\u3002<\/p>\n

2\u3001\u8282\u70b9\u521b\u5efa\u6210\u529f\u540e\uff0c\u5224\u65ad\u5f53\u524d\u7ebf\u7a0b\u521b\u5efa\u7684\u8282\u70b9\u7684\u5e8f\u53f7\u662f\u5426\u662f\u6700\u5c0f\u7684\u3002<\/p>\n

3\u3001\u5982\u679c\u5e8f\u53f7\u662f\u6700\u5c0f\u7684\uff0c\u90a3\u4e48\u83b7\u53d6\u9501\u6210\u529f\u3002<\/p>\n

 4\u3001\u5982\u679c\u5e8f\u53f7\u4e0d\u662f\u6700\u5c0f\u7684\uff0c\u5219\u5bf9\u4ed6\u5e8f\u53f7\u7684\u524d\u4e00\u4e2a\u8282\u70b9\u6dfb\u52a0\u4e8b\u4ef6\u76d1\u542c\u3002\u5982\u679c\u524d\u4e00\u4e2a\u8282\u70b9\u88ab\u5220\u4e86\uff08\u9501\u88ab\u91ca\u653e\u4e86\uff09\uff0c\u90a3\u4e48\u5c31\u4f1a\u5524\u9192\u5f53\u524d\u8282\u70b9\uff0c\u5219\u6210\u529f\u83b7\u53d6\u5230\u9501\u3002<\/p>\n

<\/p>\n

\u516d\u3001zookeepe\u548credisr\u4e24\u8005\u7684\u4f18\u7f3a<\/h2>\n

zookeeper<\/h3>\n

\u4f18\u70b9\uff1a<\/p>\n

1\u3001\u4e0d\u7528\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4<\/p>\n

2\u3001\u4e8b\u4ef6\u76d1\u542c\u673a\u5236\uff0c\u52a0\u9501\u5931\u8d25\u540e\uff0c\u53ef\u4ee5\u7b49\u5f85\u9501\u91ca\u653e<\/p>\n

\u7f3a\u70b9\uff1a<\/p>\n

1\u3001\u6027\u80fd\u4e0d\u5982redis<\/p>\n

2\u3001\u5f53\u7f51\u7edc\u4e0d\u7a33\u5b9a\u65f6\uff0c\u53ef\u80fd\u4f1a\u6709\u591a\u4e2a\u8282\u70b9\u540c\u65f6\u83b7\u53d6\u9501\u95ee\u9898\u3002\u4f8b\uff1anode1\u7531\u4e8e\u7f51\u7edc\u6ce2\u52a8\uff0c\u5bfc\u81f4zk\u5c06\u5176\u5220\u9664\uff0c\u521a\u597dnode2\u83b7\u53d6\u5230\u9501\uff0c\u90a3\u4e48\u6b64\u65f6node1\u548cnode2\u4e24\u8005\u90fd\u4f1a\u83b7\u53d6\u5230\u9501\u3002<\/p>\n

Redis<\/h3>\n

\u4f18\u70b9\uff1a\u6027\u80fd\u4e0a\u6bd4\u8f83\u597d\uff0c\u5929\u7136\u7684\u652f\u6301\u9ad8\u5e76\u53d1<\/p>\n

\u7f3a\u70b9\uff1a<\/p>\n

1\u3001\u83b7\u53d6\u9501\u5931\u8d25\u540e\uff0c\u5f97\u8f6e\u8be2\u7684\u53bb\u83b7\u53d6\u9501<\/p>\n

2\u3001\u5927\u591a\u6570\u60c5\u51b5\u4e0bredis\u65e0\u6cd5\u4fdd\u8bc1\u6570\u636e\u5f3a\u4e00\u81f4\u6027<\/p>\n

\u4e03\u3001\u90a3\u4e48\u5b9e\u9645\u7684\u5de5\u4f5c\u4e2d\uff0c\u8be5\u5982\u4f55\u9009\u62e9\u5462?<\/h2>\n

\u6bd4\u5982\u6211\u6765\u8bf4\uff0c\u5f88\u7b80\u5355\uff0c\u6ca1\u5f97\u9009\uff0c\u5c31Redis\uff0c\u4e3a\u5565\uff1f\u56e0\u4e3a\u516c\u53f8\u6ca1\u6709\u7528zk\u3002<\/p>\n

\u5177\u4f53\u5982\u4f55\u9009\u62e9\uff0c\u8fd8\u662f\u5f97\u770b\u516c\u53f8\u662f\u5426\u6709\u4f7f\u7528\u76f8\u5e94\u7684\u4e2d\u95f4\u4ef6\u3002<\/p>\n

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\u5982\u679c\u7528redis\u7684\u8bdd\uff0c\u4e2a\u4eba\u89c9\u5f97\u6ca1\u5fc5\u8981\u4e0aRedLock\uff0c\u611f\u89c9\u6027\u4ef7\u6bd4\u592a\u4f4e\u3002<\/p>\n

\u4f46\u662f\u8981\u6ce8\u610f\u7684\u662f\uff0c\u65e0\u8bba\u54ea\u4e00\u79cd\uff0c\u5728\u6781\u7aef\u7684\u60c5\u51b5\u4e0b\uff0c\u90fd\u4f1a\u6709\u9501\u5931\u6548\u6216\u9501\u51b2\u7a81\u7684\u60c5\u51b5\u51fa\u73b0\uff0c\u56e0\u6b64\u4e1a\u52a1\u4e0a\uff0c\u8bbe\u8ba1\u4e0a\u8981\u6709\u515c\u5e95\u7684\u65b9\u6848\uff0c\u4e0d\u8981\u9020\u6210\u4e0d\u5fc5\u8981\u7684\u635f\u5931\u3002<\/p>\n

\u672c\u6587\u4e2d\u6ca1\u6709\u901a\u8fc7\u4ee3\u7801\u6765\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\uff0c\u53ea\u662f\u63d0\u4f9b\u4e86\u65b9\u5411\u548c\u601d\u8def\uff0c\u4ee5\u53ca\u8981\u6ce8\u610f\u7684\u5730\u65b9\u3002\u81f3\u4e8e\u5177\u4f53\u5982\u4f55\u901a\u8fc7\u4ee3\u7801\u5b9e\u73b0\uff0cJava\u7684\u8bdd\u6709Redisson\u5c01\u88c5\u597d\u4e86\u5927\u90e8\u5206\u529f\u80fd\uff0c\u4f7f\u7528\u8d77\u6765\u4e5f\u6bd4\u8f83\u7b80\u5355\uff0c\u5927\u5bb6\u53ef\u4ee5\u53c2\u8003\u76f8\u5e94\u7684\u6587\u6863\u5373\u53ef\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u8be6\u89e3 \u6536\u85cf...<\/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-201820","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201820","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=201820"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201820\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201820"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201820"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201820"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}