{"id":201652,"date":"2025-05-10T12:54:32","date_gmt":"2025-05-10T04:54:32","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201652\/"},"modified":"2025-05-10T12:54:32","modified_gmt":"2025-05-10T04:54:32","slug":"redis%e5%88%86%e5%b8%83%e5%bc%8f%e9%94%81%e5%ad%98%e5%9c%a8%e7%9a%84%e9%97%ae%e9%a2%98%e6%8e%a8%e8%8d%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201652\/","title":{"rendered":"Redis\u5206\u5e03\u5f0f\u9501\u5b58\u5728\u7684\u95ee\u9898(\u63a8\u8350)"},"content":{"rendered":"

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

Redis\u5206\u5e03\u5f0f\u9501\u5b58\u5728\u7684\u95ee\u9898(\u63a8\u8350)<\/h1>\n

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

\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u90fd\u6253\u5f00\u8fd9\u7bc7\u300aRedis\u5206\u5e03\u5f0f\u9501\u5b58\u5728\u7684\u95ee\u9898(\u63a8\u8350)\u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\uff0c\u5b66\u4e0b\u53bb\u5427\uff01\u672c\u6587\u4e3b\u8981\u4f1a\u7ed9\u5927\u5bb6\u8bb2\u5230Redis\u5206\u5e03\u5f0f\u9501<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5927\u5bb6\u5bf9\u672c\u6587\u6709\u597d\u7684\u5efa\u8bae\u6216\u8005\u770b\u5230\u6709\u4e0d\u8db3\u4e4b\u5904\uff0c\u975e\u5e38\u6b22\u8fce\u5927\u5bb6\u79ef\u6781\u63d0\u51fa\uff01\u5728\u540e\u7eed\u6587\u7ae0\u6211\u4f1a\u7ee7\u7eed\u66f4\u65b0\u6570\u636e\u5e93<\/span>\u76f8\u5173\u7684\u5185\u5bb9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n

\u5728\u5f88\u591a\u573a\u666f\u4e2d\uff0c\u6211\u4eec\u4e3a\u4e86\u4fdd\u8bc1\u6570\u636e\u7684\u6700\u7ec8\u4e00\u81f4\u6027\uff0c\u9700\u8981\u5f88\u591a\u7684\u6280\u672f\u65b9\u6848\u6765\u652f\u6301\uff0c\u6bd4\u5982\u5206\u5e03\u5f0f\u4e8b\u52a1\u3001\u5206\u5e03\u5f0f\u9501\u7b49\u3002<\/p>\n

\u6709\u5f88\u591a\u57fa\u4e8eRedis\u5b9e\u73b0\u7684\u5206\u5e03\u5f0f\u9501\u65b9\u6848\u6216\u8005\u5e93\uff0c\u4f46\u662f\u6709\u4e9b\u5e93\u5e76\u6ca1\u6709\u89e3\u51b3\u5206\u5e03\u5f0f\u73af\u5883\u4e0b\u7684\u4e00\u4e9b\u95ee\u9898\u9677\u9631\u3002<\/p>\n

\u5206\u5e03\u5f0f\u9501\u7684\u7279\u70b9<\/h2>\n

\u5206\u5e03\u5f0f\u9501\u5e94\u8be5\u5177\u5907\u4ee5\u4e0b\u5c5e\u6027\uff1a<\/p>\n

    \n
  • \u4e92\u65a5<\/strong> \u5728\u540c\u4e00\u65f6\u523b\u53ea\u6709\u4e00\u4e2a\u5ba2\u6237\u7aef\u53ef\u4ee5\u6301\u6709\u9501\uff1b\u8fd9\u662f\u5206\u5e03\u5f0f\u9501\u7684\u57fa\u672c\u5c5e\u6027\u3002<\/li>\n
  • \u65e0\u6b7b\u9501<\/strong> \u6bcf\u4e2a\u9501\u8bf7\u6c42\u90fd\u53ef\u4ee5\u6700\u7ec8\u83b7\u5f97\u9501\uff1b\u5373\u4f7f\u662f\u6301\u6709\u9501\u7684\u5ba2\u6237\u7aef\u4e5f\u4f1a\u5d29\u6e83\u6216\u9047\u5230\u5f02\u5e38\u3002 \u4e0d\u540c\u7684\u5b9e\u73b0<\/li>\n<\/ul>\n

    \u4e0d\u540c\u7684\u5b9e\u73b0<\/h2>\n

    \u8bb8\u591a\u5206\u5e03\u5f0f\u9501\u5b9e\u73b0\u90fd\u662f\u57fa\u4e8e\u5206\u5e03\u5f0f\u5171\u8bc6\u7b97\u6cd5(Paxos\u3001Raft\u3001ZAB\u3001Pacifica)\u7684\uff0c\u6bd4\u5982\u57fa\u4e8ePaxos\u7684Chubby\u3001\u57fa\u4e8eZAB\u7684Zookeeper\u7b49\uff0c\u4ee5\u53ca\u57fa\u4e8eRaft\u7684Consul\u3002Redis\u7684\u4f5c\u8005\u8fd8\u63d0\u51fa\u4e86\u4e00\u79cd\u5206\u5e03\u5f0f\u9501\uff0c\u540d\u4e3aRedLock\u3002<\/p>\n

    \u5728\u63a5\u4e0b\u6765\u7684\u7ae0\u8282\u4e2d\uff0c\u6211\u5c06\u5c55\u793a\u5982\u4f55\u57fa\u4e8eRedis\u4e00\u6b65\u6b65\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\uff0c\u5e76\u4e14\u5728\u6bcf\u4e00\u6b65\u4e2d\uff0c\u6211\u90fd\u8bd5\u56fe\u89e3\u51b3\u5206\u5e03\u5f0f\u73af\u5883\u4e2d\u53ef\u80fd\u53d1\u751f\u7684\u4e00\u4e2a\u95ee\u9898\u3002<\/p>\n

    \u573a\u666f\u4e00\uff1a\u5355\u5b9e\u4f8bRedis<\/h2>\n

    \u4e3a\u4e86\u7b80\u5355\u8d77\u89c1\uff0c\u5047\u8bbe\u6211\u4eec\u6709\u4e24\u4e2a\u5ba2\u6237\u7aef\u548c\u4e00\u4e2aRedis\u5b9e\u4f8b\u3002\u4e00\u4e2a\u7b80\u5355\u7684\u5b9e\u73b0\u5e94\u8be5\u662f\uff1a<\/p>\n

    boolean tryAcquire(String lockName, long leaseTime, OperationCallBack operationCallBack) {\n   \/\/ \u52a0\u9501\n  boolean getLockSuccessfully = getLock(lockName, leaseTime);\n  if (getLockSuccessfully) {\n      try {\n          operationCallBack.doOperation();\n      } finally {\n          releaseLock(lockName);\n      }\n      return true;\n  } else {\n      return false;\n  }\n}\n\nboolean getLock(String lockName, long expirationTimeMillis) {\n\t\/\/ \u7ed9\u5f53\u524d\u7ebf\u7a0b\u521b\u5efa\u4e00\u4e2a\u552f\u4e00\u7684lockValue\n  String lockValue = createUniqueLockValue();\n  try {\n\t  \/\/ \u5982\u679clockName\u6ca1\u6709\u52a0\u9501\uff0c\u5219\u5c06lockName\u4f5c\u4e3akey\u4fdd\u5b58\u5230redis\u4e2d\uff0c\u5e76\u6307\u5b9a\u8fc7\u671f\u65f6\u95f4\n      String response = storeLockInRedis(lockName, lockValue, expirationTimeMillis);\n      return response.equalsIgnoreCase(\"OK\");\n  } catch (Exception exception) {\n      releaseLock(lockName);\n      throw exception;\n  }\n}\n\nvoid releaseLock(String lockName) {\n  String lockValue = createUniqueLockValue();\n  \/\/ \u79fb\u9664\u9501lockName\uff0c\u5982\u679c\u9501\u7684\u503c\u662flockValue\n  removeLockFromRedis(lockName, lockValue);\n}<\/pre>\n
    \u8fd9\u79cd\u65b9\u5f0f\u6709\u4ec0\u4e48\u95ee\u9898\u5462\uff1f<\/p>\n
    **\u5047\u5982\u5ba2\u6237\u7aef1\u8bf7\u6c42\u670d\u52a1\u7aef\u83b7\u53d6\u4e00\u4e2a\u9501\uff0c\u5e76\u6307\u5b9a\u4e86\u9501\u8d85\u65f6\u65f6\u95f4\uff0c\u5982\u679c\u670d\u52a1\u5668\u54cd\u5e94\u7684\u65f6\u95f4\u5927\u4e8e\u9501\u7684\u8d85\u65f6\u65f6\u95f4\uff0c\u5ba2\u6237\u7aef1\u62ff\u5230\u7684\u5219\u662f\u4e00\u4e2a\u8fc7\u671f\u7684\u9501\uff0c\u8fd9\u65f6\u5ba2\u6237\u7aef2\u540c\u65f6\u53ef\u4ee5\u83b7\u53d6\u8be5\u9501\u8fdb\u884c\u4e1a\u52a1\u64cd\u4f5c\u3002**\u8fd9\u6253\u7834\u4e86\u5206\u5e03\u5f0f\u9501\u5e94\u8be5\u5177\u5907\u7684\u76f8\u4e92\u6392\u65a5\u539f\u5219\u3002<\/p>\n
    <\/p>\n
    \u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u5e94\u8be5\u7ed9redis\u5ba2\u6237\u7aef\u8bbe\u7f6e\u4e00\u4e2a\u8bf7\u6c42\u8d85\u65f6\u65f6\u95f4timeout\uff0c\u8fd9\u4e2a\u65f6\u95f4\u5e94\u8be5\u5c0f\u4e8e\u9501\u7684\u8d85\u65f6\u65f6\u95f4\u3002<\/p>\n
    \u5f53\u65f6\u8fd9\u8fd8\u4e0d\u80fd\u5b8c\u5168\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u5047\u8bbeRedis\u670d\u52a1\u5668\u56e0\u4e3a\u6389\u7535\u91cd\u542f\uff0c\u5219\u4f1a\u6709\u5176\u4ed6\u7684\u95ee\u9898\uff0c\u6211\u4eec\u63a5\u4e0b\u6765\u770b\u7b2c\u4e8c\u4e2a\u573a\u666f\u3002<\/p>\n
    \u573a\u666f\u4e8c\uff1a\u5355\u5b9e\u4f8bRedis\u7684\u5355\u70b9\u6545\u969c<\/h2>\n
    \u5982\u679c\u4f60\u5bf9Redis\u7684\u6570\u636e\u6301\u4e45\u5316\u65b9\u6848\u6709\u6240\u4e86\u89e3\uff0c\u90a3\u4e00\u5b9a\u77e5\u9053Redis\u6709\u4e24\u79cd\u65b9\u5f0f\u505a\u6570\u636e\u6301\u4e45\u5316\u3002<\/p>\n
    RDB(Redis Database)<\/strong>\uff1a\u6309\u6307\u5b9a\u7684\u65f6\u95f4\u95f4\u9694\u5c06Redis\u7684\u6570\u636e\u5feb\u7167\u4fdd\u5b58\u5230\u78c1\u76d8\u3002<\/p>\n
    AOF(Append-Only File)<\/strong>\uff1a\u5c06\u670d\u52a1\u5668\u63a5\u6536\u5230\u7684\u5199\u64cd\u4f5c\u6307\u4ee4\u8bb0\u5f55\u4e0b\u6765\uff0c\u8fd9\u4e9b\u64cd\u4f5c\u6307\u4ee4\u5728\u670d\u52a1\u91cd\u542f\u65f6\u53ef\u4ee5\u91cd\u65b0\u6267\u884c\u6765\u6062\u590d\u539f\u59cb\u6570\u636e\u3002<\/p>\n
    \u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u4f1a\u5f00\u542fRDB<\/strong>\u6a21\u5f0f\uff0c\u4f1a\u6309\u7167\u5982\u4e0b\u65b9\u5f0f\u914d\u7f6e\uff1a<\/p>\n
    save 900 1 \n\nsave 300 10 \n\nsave 60 10000<\/pre>\n
    \u4f8b\u5982\uff0c\u7b2c\u4e00\u884c\u8868\u793a\u5728900\u79d2\uff0815min\uff09\u5185\u5982\u679c\u6709\u4e00\u6b21\u5199\u64cd\u4f5c\uff0c\u5c31\u5c06\u6570\u636e\u540c\u6b65\u5230\u6570\u636e\u6587\u4ef6\u3002<\/p>\n
    \u6240\u4ee5\u5728\u6700\u574f\u7684\u60c5\u51b5\u4e0b\uff0c\u5c06\u4e00\u4e2a\u52a0\u9501\u6570\u636e\u4fdd\u5b58\u9700\u898115\u5206\u949f\uff0c\u5982\u679c\u5728\u52a0\u9501\u6210\u529f\u65f6Redis\u670d\u52a1\u6389\u7535\u91cd\u542f\uff0c\u5219\u65e0\u6cd5\u6062\u590d\u5185\u5b58\u4e2d\u7684\u52a0\u9501\u6570\u636e\uff0c\u5176\u5b83\u5ba2\u6237\u7aef\u540c\u6837\u53ef\u4ee5\u83b7\u53d6\u5230\u76f8\u540c\u7684\u9501<\/strong>\uff1a<\/p>\n
    <\/p>\n
    \u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u5fc5\u987b\u4f7f\u7528fsync=always<\/code>\u9009\u9879\u6765\u542f\u7528AOF<\/strong>\uff0c\u7136\u540e\u5728Redis\u4e2d\u8bbe\u7f6e\u952e\u3002<\/p>\n
    \u6ce8\u610f\uff0c\u542f\u7528\u8fd9\u4e2a\u9009\u9879\u5bf9Redis\u7684\u6027\u80fd\u6709\u4e00\u5b9a\u7684\u5f71\u54cd\uff0c\u4f46\u6211\u4eec\u9700\u8981\u8fd9\u4e2a\u9009\u9879\u4ee5\u4fdd\u6301\u5f3a\u4e00\u81f4\u6027\u3002<\/p>\n
    \u573a\u666f\u4e09\uff1a\u4e3b\u4ece\u590d\u5236<\/h2>\n
    \u5728\u8fd9\u4e2a\u914d\u7f6e\u4e2d\uff0c\u6211\u4eec\u6709\u4e00\u4e2a\u6216\u591a\u4e2a\u5b9e\u4f8b(\u901a\u5e38\u79f0\u4e3a\u4ece\u5b9e\u4f8b\u6216\u526f\u672c)\uff0c\u5b83\u4eec\u662f\u4e3b\u5b9e\u4f8b\u7684\u7cbe\u786e\u526f\u672c\u3002<\/p>\n
    \u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cRedis\u4e2d\u7684\u590d\u5236\u662f\u5f02\u6b65\u7684\uff1b\u8fd9\u610f\u5473\u7740\u4e3b\u670d\u52a1\u5668\u4e0d\u4f1a\u7b49\u5f85\u547d\u4ee4\u88ab\u526f\u672c\u5904\u7406\u5b8c\u6bd5\u518d\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002<\/p>\n
    \u95ee\u9898\u662f\u5728\u590d\u5236\u53d1\u751f\u4e4b\u524d\uff0c\u4e3b\u670d\u52a1\u5668\u53ef\u80fd\u51fa\u73b0\u6545\u969c\uff0c\u5e76\u53d1\u751f\u6545\u969c\u8f6c\u79fb\uff1b\u5728\u6b64\u4e4b\u540e\uff0c\u5982\u679c\u53e6\u4e00\u4e2a\u5ba2\u6237\u7aef\u8bf7\u6c42\u83b7\u5f97\u9501\uff0c\u5b83\u5c06\u6210\u529f\uff01\u6216\u8005\u5047\u8bbe\u5b58\u5728\u4e00\u4e2a\u4e34\u65f6\u7684\u7f51\u7edc\u95ee\u9898\uff0c\u56e0\u6b64\u5176\u4e2d\u4e00\u4e2a\u526f\u672c\u6ca1\u6709\u63a5\u6536\u5230\u547d\u4ee4\uff0c\u7f51\u7edc\u53d8\u5f97\u7a33\u5b9a\uff0c\u6545\u969c\u8f6c\u79fb\u5f88\u5feb\u53d1\u751f\uff1b\u6ca1\u6709\u63a5\u6536\u5230\u547d\u4ee4\u7684\u8282\u70b9\u6210\u4e3a\u4e3b\u8282\u70b9\u3002<\/p>\n
    \u6700\u7ec8\uff0c\u8be5\u9501\u5c06\u4ece\u6240\u6709\u5b9e\u4f8b\u4e2d\u5220\u9664\uff01\u4e0b\u56fe\u8bf4\u660e\u4e86\u8fd9\u79cd\u60c5\u51b5:<\/p>\n
    <\/p>\n
    \u4f5c\u4e3a\u89e3\u51b3\u65b9\u6848\uff0c\u6709\u4e00\u4e2a\u7b49\u5f85\u547d\u4ee4\uff0c\u7b49\u5f85\u6307\u5b9a\u6570\u91cf\u7684\u786e\u8ba4\u526f\u672c\u5e76\u8fd4\u56de\u526f\u672c\u7684\u6570\u91cf\uff0c\u627f\u8ba4\u4e4b\u524d\u7684\u5199\u547d\u4ee4\u53d1\u9001\u7b49\u5f85\u547d\u4ee4\uff0c\u4e24\u4e2a\u7684\u60c5\u51b5\u4e0b\u8fbe\u5230\u6307\u5b9a\u6570\u91cf\u7684\u526f\u672c\u6216\u8005\u8d85\u65f6\u3002<\/p>\n
    \u4f8b\u5982\uff0c\u5982\u679c\u6211\u4eec\u6709\u4e24\u4e2a\u526f\u672c\uff0c\u4e0b\u9762\u7684\u547d\u4ee4\u6700\u591a\u7b49\u5f851\u79d2(1000\u6beb\u79d2)\u6765\u4ece\u4e24\u4e2a\u526f\u672c\u83b7\u5f97\u786e\u8ba4\u5e76\u8fd4\u56de\uff1a<\/p>\n
    WAIT  2  1000<\/pre>\n
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