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class=\"post-ul\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u8f3b\u8f33\u3057\u3066\u3044\u305f\u308a\u3001\u30ea\u30e2\u30fc\u30c8\u304c\u904e\u8ca0\u8377\u306b\u306a\u3063\u3066\u3044\u305f\u308a\u3057\u3066\u3001\u3042\u3068\u304b\u3089\u914d\u4fe1\u3055\u308c\u308b\u304b\u3082<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30ea\u30e2\u30fc\u30c8\u304c\u30af\u30e9\u30c3\u30b7\u30e5\u3057\u3066\u3044\u308b\u304b\u3082<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30ea\u30e2\u30fc\u30c8\u304c\u5fdc\u7b54\u306a\u3057\u72b6\u614b\u306b\u306a\u3063\u3066\u3044\u308b\u304b\u3082\uff08\u4f8b\uff1a\u30ea\u30e2\u30fc\u30c8\u304c\u30ac\u30d9\u30fc\u30b8\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306b\u3088\u308b\u9ad8\u8ca0\u8377\uff09<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30ea\u30e2\u30fc\u30c8\u306e\u30ec\u30b9\u30dd\u30f3\u30b9\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u3067\u6d88\u5931\u3057\u305f\u304b\u3082<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30ec\u30b9\u30dd\u30f3\u30b9\u304c\u9045\u5ef6\u914d\u9001\u3055\u308c\u308b\u304b\u3082<\/ul>\n<p>\u53d1\u9001\u65b9\u65e0\u6cd5\u77e5\u9053\u6570\u636e\u5305\u662f\u5426\u6210\u529f\u9001\u8fbe\uff0c\u4e5f\u65e0\u6cd5\u77e5\u9053\u4e3a\u4f55\u65e0\u6cd5\u63a5\u6536\u5230\u54cd\u5e94\u3002\u901a\u5e38\uff0c\u8fd9\u4e9b\u60c5\u51b5\u4f1a\u901a\u8fc7\u8d85\u65f6\u5904\u7406\u3002<\/p>\n<h3>8.2.1 \u7f51\u7edc\u6545\u969c\u7684\u5b9e\u9645\u60c5\u51b5<\/h3>\n<p>\u5728\u4e00\u9879\u5173\u4e8e\u4e2d\u578b\u6570\u636e\u4e2d\u5fc3\u7684\u7814\u7a76\u4e2d\u53d1\u73b0\uff0c\u6bcf\u6708\u5927\u7ea6\u4f1a\u53d1\u751f12\u6b21\u7f51\u7edc\u6545\u969c\u3002\u5176\u4e2d\u4e00\u534a\u662f\u7531\u4e8e\u5355\u4e2a\u673a\u5668\u65ad\u5f00\u8fde\u63a5\uff0c\u53e6\u4e00\u534a\u662f\u6574\u4e2a\u673a\u67b6\u88ab\u5207\u65ad\u3002\u8be5\u7814\u7a76\u8868\u660e\uff0c\u5373\u4f7f\u6dfb\u52a0\u4e86\u5197\u4f59\u7684\u7f51\u7edc\u8bbe\u5907\uff0c\u4e5f\u4e0d\u80fd\u4fdd\u62a4\u514d\u53d7\u4eba\u4e3a\u9519\u8bef\u8fd9\u79cd\u5bfc\u81f4\u6545\u969c\u7684\u4e3b\u8981\u539f\u56e0\uff0c\u5e76\u4e14\u6545\u969c\u5e76\u6ca1\u6709\u5982\u9884\u671f\u90a3\u6837\u51cf\u5c11\u3002<\/p>\n<p>\u4f17\u6240\u5468\u77e5\uff0c\u50cfEC2\u8fd9\u6837\u7684\u516c\u5171\u4e91\u5e73\u53f0\u7ecf\u5e38\u4f1a\u51fa\u73b0\u4e34\u65f6\u7f51\u7edc\u6545\u969c\u3002\u76f8\u6bd4\u4e4b\u4e0b\uff0c\u826f\u597d\u7ba1\u7406\u7684\u79c1\u4eba\u6570\u636e\u4e2d\u5fc3\u7f51\u7edc\u53ef\u4ee5\u63d0\u4f9b\u66f4\u7a33\u5b9a\u7684\u73af\u5883\u3002<\/p>\n<p>\u5373\u4fbf\u5728\u4e2a\u4eba\u73af\u5883\u4e2d\u7f51\u7edc\u6545\u969c\u5f88\u7f55\u89c1\uff0c\u4f46\u4ecd\u7136\u9700\u8981\u5904\u7406\u6545\u969c\u7684\u53d1\u751f\u3002\u672a\u9884\u6599\u5230\u7684\u60c5\u51b5\u4e0b\uff0c\u8f6f\u4ef6\u4f1a\u51fa\u73b0\u610f\u6599\u4e4b\u5916\u7684\u884c\u4e3a\u3002\u96c6\u7fa4\u53ef\u80fd\u4f1a\u9677\u5165\u6b7b\u9501\uff0c\u7f51\u7edc\u6062\u590d\u540e\u53ef\u80fd\u65e0\u6cd5\u5904\u7406\u8bf7\u6c42\uff0c\u6216\u8005\u53ef\u80fd\u4f1a\u5220\u9664\u6240\u6709\u6570\u636e\u3002<\/p>\n<p>\u9700\u8981\u4e86\u89e3\u8f6f\u4ef6\u5982\u4f55\u5904\u7406\u7f51\u7edc\u6545\u969c\u3002\u4e3a\u6b64\uff0c\u6709\u4e00\u79cd\u624b\u6bb5\u662f\u6545\u610f\u5f15\u53d1\u7f51\u7edc\u95ee\u9898\uff0c\u6d4b\u8bd5\u7cfb\u7edf\u7684\u53cd\u5e94\uff08\u6df7\u6c8c\u7334\uff09<\/p>\n<h3>8.2.2 \u53d1\u73b0\u6545\u969c<\/h3>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u30fc\u306f\u505c\u6b62\u3057\u3066\u3057\u307e\u3063\u305f\u30ce\u30fc\u30c9\u3078\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u9001\u4fe1\u3092\u505c\u6b62\u3059\u308b\uff08\u30ed\u30fc\u30c6\u304b\u3089\u5916\u3059\uff09<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30b7\u30f3\u30b0\u30eb\u30ea\u30fc\u30c0\u30fc\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u30ea\u30fc\u30c0\u30fc\u306b\u969c\u5bb3\u304c\u767a\u751f\u3057\u305f\u3068\u304d\u3001\u30d5\u30a9\u30ed\u30ef\u30fc\u304c\u30ea\u30fc\u30c0\u30fc\u6607\u683c\u3059\u308b<\/ul>\n<p>\u7531\u4e8e\u7f51\u7edc\u7684\u4e0d\u786e\u5b9a\u6027\uff0c\u5f88\u96be\u77e5\u9053\u8282\u70b9\u662f\u5426\u6b63\u5e38\u5de5\u4f5c\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30ce\u30fc\u30c9\u304c\u52d5\u4f5c\u3057\u3066\u3044\u308b\u306f\u305a\u306e\u30de\u30b7\u30f3\u306b\u5230\u9054\u3067\u304d\u308b\u304c\u3001\u30d7\u30ed\u30bb\u30b9\u304c\u306a\u3044\u5834\u5408OS\u304cTCP\u63a5\u7d9a\u3092\u62d2\u5426\u3059\u308b\u3002\u3057\u304b\u3057\u3001\u53d7\u4fe1\u3057\u305f\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u51e6\u7406\u3057\u305f\u3042\u3068\u306b\u30af\u30e9\u30c3\u30b7\u30e5\u3057\u305f\u3089\u3001\u30ce\u30fc\u30c9\u304c\u3069\u308c\u3060\u3051\u306e\u30c7\u30fc\u30bf\u3092\u51e6\u7406\u3057\u305f\u304b\u77e5\u308b\u3053\u3068\u306f\u3067\u304d\u306a\u3044<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30ce\u30fc\u30c9\u306e\u30d7\u30ed\u30bb\u30b9\u304c\u30af\u30e9\u30c3\u30b7\u30e5\u3057\u305f\u3082\u306e\u306e\u3001OS\u304c\u52d5\u4f5c\u3057\u3066\u3044\u308b\u306a\u3089\u3001\u5225\u30ce\u30fc\u30c9\u306b\u30af\u30e9\u30c3\u30b7\u30e5\u901a\u77e5\u3092\u9001\u308a\u5f79\u5272\u4ea4\u4ee3\u3067\u304d\u308b\u3002HBase\u306f\u305d\u3046\u3044\u3046\u3053\u3068\u3092\u3084\u3063\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u30a4\u30c3\u30c1\u306e\u7ba1\u7406\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u306a\u3089\u3001\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u30ec\u30d9\u30eb\u306e\u30ea\u30f3\u30af\u969c\u5bb3\u304b\u3069\u3046\u304b\u8abf\u3079\u3089\u308c\u308b\u3002\u30b9\u30a4\u30c3\u30c1\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u74b0\u5883\u306a\u3089\u3001\u3053\u308c\u306f\u3067\u304d\u306a\u3044<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u63a5\u7d9a\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u308bIP\u30a2\u30c9\u30ec\u30b9\u304c\u5230\u9054\u4e0d\u80fd\u3060\u3068\u30eb\u30fc\u30bf\u30fc\u304c\u5224\u65ad\u3067\u304d\u308b\u3068\u304d\u3001ICMP Destination Unreachable\u30d1\u30b1\u30c3\u30c8\u3092\u8fd4\u3057\u3066\u304f\u308b\u5834\u5408\u304c\u3042\u308b<\/ul>\n<p>\u5982\u679c\u5e0c\u671b\u786e\u8ba4\u8bf7\u6c42\u5df2\u6210\u529f\uff0c\u9664\u4e86\u4ece\u5e94\u7528\u7a0b\u5e8f\u672c\u8eab\u63a5\u6536\u9002\u5f53\u7684\u54cd\u5e94\uff0c\u6ca1\u6709\u5176\u4ed6\u9009\u62e9\u3002<\/p>\n<h3>8.2.3 \u65e0\u9650\u5236\u5ef6\u8fdf\u548c\u8d85\u65f6<\/h3>\n<p>\u68c0\u6d4b\u6545\u969c\u7684\u552f\u4e00\u53ef\u9760\u65b9\u6cd5\u662f\u8d85\u65f6\u3002\u7136\u800c\uff0c\u8d85\u65f6\u7684\u957f\u5ea6\u5e76\u6ca1\u6709\u7b80\u5355\u7684\u7b54\u6848\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u304c\u9577\u3051\u308c\u3070\u3001\u30ce\u30fc\u30c9\u304c\u843d\u3061\u3066\u3044\u308b\u3068\u307f\u306a\u3055\u308c\u308b\u6642\u9593\u304c\u4f38\u3073\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u304c\u77ed\u3051\u308c\u3070\u3001\u843d\u3061\u3066\u3044\u306a\u3044\u30ce\u30fc\u30c9\u3092\u843d\u3061\u3066\u3044\u308b\u3068\u307f\u306a\u3059\u3053\u3068\u304c\u5897\u3048\u308b\u3002<\/ul>\n<p>\u5f53\u5c06\u672a\u6389\u7ebf\u7684\u8282\u70b9\u89c6\u4e3a\u5df2\u6389\u7ebf\u65f6\uff0c\u53ef\u80fd\u4f1a\u53d1\u751f\u4e24\u6b21\u64cd\u4f5c\u6267\u884c\u7684\u60c5\u51b5\u3002<\/p>\n<p>\u60f3\u8c61\u4e00\u4e0b\u62e5\u6709\u4fdd\u8bc1\u7f51\u7edc\u5ef6\u8fdf\u4e0a\u9650\u7684\u7cfb\u7edf\u3002\u5728\u8fd9\u4e2a\u7cfb\u7edf\u4e2d\uff0c\u6570\u636e\u5305\u53ef\u4ee5\u5728\u4e00\u5b9a\u65f6\u95f4d\u5185\u88ab\u4ea4\u4ed8\u6216\u8005\u4e22\u5931\uff0c\u540c\u65f6\u8bf7\u6c42\u7684\u5904\u7406\u65f6\u95f4\u5fc5\u987b\u5728\u4e00\u5b9a\u65f6\u95f4r\u5185\u5b8c\u6210\u3002\u5982\u679c\u6709\u8fd9\u4e24\u4e2a\u5047\u8bbe\uff0c\u90a3\u4e48\u8d85\u65f6\u65f6\u95f4\u53ef\u4ee5\u786e\u5b9a\u4e3a2d + r\u3002\u7136\u800c\uff0c\u5b9e\u9645\u4e0a\u5e76\u4e0d\u5b58\u5728\u540c\u65f6\u6ee1\u8db3\u8fd9\u4e24\u4e2a\u5047\u8bbe\u7684\u7cfb\u7edf\uff0c\u56e0\u6b64\u65e0\u6cd5\u7b80\u5355\u5730\u8fdb\u884c\u601d\u8003\u3002<\/p>\n<h4>8.2.3.1 \u7f51\u7edc\u62e5\u585e\u548c\u961f\u5217\u7ba1\u7406<\/h4>\n<p>\u5728\u4e58\u8f66\u51fa\u884c\u65f6\uff0c\u6240\u9700\u7684\u65f6\u95f4\u4e3b\u8981\u53d6\u51b3\u4e8e\u4ea4\u901a\u62e5\u5835\u7684\u7a0b\u5ea6\u3002\u8ba1\u7b97\u673a\u7f51\u7edc\u4e2d\u7684\u6570\u636e\u5305\u5ef6\u8fdf\u4e5f\u662f\u5982\u6b64\uff0c\u4e3b\u8981\u662f\u7531\u6392\u961f\u5f15\u8d77\u7684\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u8907\u6570\u306e\u30ce\u30fc\u30c9\u304c\u540c\u6642\u306b\u540c\u3058\u5b9b\u5148\u306b\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u308b\u3068\u304d\u3001\u30b9\u30a4\u30c3\u30c1\u306f\u30ad\u30e5\u30fc\u30a4\u30f3\u30b0\u3057\u3001\u9001\u4fe1\u5148\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30ea\u30f3\u30af\u306b1\u3064\u305a\u3064\u9001\u308a\u307e\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30ea\u30f3\u30af\u304c\u6df7\u96d1\u3057\u3066\u3044\u308b\u3068\u304d\u3001\u30d1\u30b1\u30c3\u30c8\u306f\u30b9\u30ed\u30c3\u30c8\u3092\u5f97\u308b\u307e\u3067\u5f85\u3061\u6642\u9593\u304c\u3042\u308a\u307e\u3059\uff08\u3053\u308c\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u8f3b\u8f33\u3068\u547c\u3070\u308c\u307e\u3059\uff09\u3002\u30b9\u30a4\u30c3\u30c1\u306e\u30ad\u30e5\u30fc\u3092\u57cb\u3081\u3066\u3057\u307e\u3046\u3088\u3046\u306a\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u304c\u3084\u3063\u3066\u304f\u308b\u3068\u3001\u30d1\u30b1\u30c3\u30c8\u306f\u30c9\u30ed\u30c3\u30d7\u3055\u308c\u3001\u30d1\u30b1\u30c3\u30c8\u306e\u518d\u9001\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30d1\u30b1\u30c3\u30c8\u304c\u5b9b\u5148\u306e\u30de\u30b7\u30f3\u306b\u5230\u9054\u3057\u3066\u3082\u3001\u3059\u3079\u3066\u306eCPU\u304c\u30d3\u30b8\u30fc\u306a\u3089\u3001OS\u306b\u3088\u3063\u3066\u30ad\u30e5\u30fc\u30a4\u30f3\u30b0\u3055\u308c\u307e\u3059\u3002\u30ad\u30e5\u30fc\u304c\u51e6\u7406\u3055\u308c\u308b\u306e\u306f\u3001\u30de\u30b7\u30f3\u306e\u8ca0\u8377\u6b21\u7b2c\u3067\u3069\u308c\u304f\u3089\u3044\u306e\u6642\u9593\u304c\u304b\u304b\u308b\u304b\u5206\u304b\u3089\u306a\u3044\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u4eee\u60f3\u5316\u3055\u308c\u305f\u74b0\u5883\u3067\u306f\u3001OS\u306e\u52d5\u4f5c\u306f\u4ed6\u306e\u4eee\u60f3\u30de\u30b7\u30f3\u304cCPU\u30b3\u30a2\u3092\u4f7f\u3046\u3068\u304d\u306b\u3001\u6570\u5341\u30df\u30ea\u79d2\u3001\u4e00\u6642\u7684\u306b\u505c\u6b62\u3059\u308b\u3002\u3053\u306e\u9593VM\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u6765\u305f\u30c7\u30fc\u30bf\u3092\u51e6\u7406\u3067\u304d\u306a\u3044\u306e\u3067\u3001\u3084\u3063\u3066\u304d\u305f\u30c7\u30fc\u30bf\u306f\u4eee\u60f3\u30de\u30b7\u30f3\u306e\u30e2\u30cb\u30bf\u30fc\u306b\u3088\u3063\u3066\u30ad\u30e5\u30fc\u30a4\u30f3\u30b0\u3055\u308c\u308b\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u9045\u5ef6\u306e\u5909\u52d5\u5e45\u306f\u3055\u3089\u306b\u5927\u304d\u304f\u306a\u308a\u307e\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">TCP\u306f\u30d5\u30ed\u30fc\u5236\u5fa1\uff08\u8f3b\u8f33\u56de\u907f\u3042\u308b\u3044\u306f\u30d0\u30c3\u30af\u30d7\u30ec\u30c3\u30b7\u30e3\u30fc\u3068\u547c\u3070\u308c\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\uff09\u3092\u884c\u3044\u307e\u3059\u3002\u305d\u306e\u969b\u306b\u3001\u30ce\u30fc\u30c9\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30ea\u30f3\u30af\u3084\u53d7\u4fe1\u5074\u306e\u30ce\u30fc\u30c9\u3092\u904e\u8ca0\u8377\u306b\u9665\u3089\u305b\u308b\u3053\u3068\u304c\u306a\u3044\u3088\u3046\u306b\u3001\u81ea\u8eab\u306e\u9001\u4fe1\u30ec\u30fc\u30c8\u3092\u5236\u9650\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u30c7\u30fc\u30bf\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u5165\u308b\u524d\u306b\u9001\u4fe1\u5074\u3067\u3082\u30ad\u30e5\u30fc\u30a4\u30f3\u30b0\u3055\u308c\u307e\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">TCP\u3067\u306f\u30e9\u30a6\u30f3\u30c9\u30c8\u30ea\u30c3\u30d7\u6642\u9593\u304b\u3089\u8a08\u7b97\u3057\u305f\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u6642\u9593\u3067\u30d1\u30b1\u30c3\u30c8\u304c\u30ed\u30b9\u3057\u305f\u3082\u306e\u3068\u898b\u306a\u3057\u3001\u81ea\u52d5\u7684\u306b\u518d\u9001\u3055\u308c\u307e\u3059\u3002\u30a2\u30d7\u30ea\u30fc\u30b1\u30fc\u30b7\u30e7\u30f3\u304b\u3089\u306f\u3001\u30d1\u30b1\u30c3\u30c8\u306e\u30ed\u30b9\u30c8\u3068\u518d\u9001\u306f\u533a\u5225\u3067\u304d\u305a\u3001\u9045\u5ef6\u3068\u3044\u3046\u4e8b\u5b9f\u3060\u3051\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/ul>\n<p>\u5728\u516c\u5171\u4e91\u6216\u591a\u79df\u6237\u6570\u636e\u4e2d\u5fc3\u7684\u60c5\u51b5\u4e0b\uff0c\u8d44\u6e90\u662f\u5728\u591a\u4e2a\u5ba2\u6237\u4e4b\u95f4\u5171\u4eab\u7684\uff0c\u50cfMapReduce\u8fd9\u6837\u7684\u6279\u5904\u7406\u5de5\u4f5c\u8d1f\u8f7d\u53ef\u80fd\u4f1a\u8f7b\u6613\u4f7f\u7f51\u7edc\u94fe\u63a5\u8d85\u8d1f\u8377\u8fd0\u884c\u3002\u5982\u679c\u9644\u8fd1\u7684\u67d0\u4e2a\u4eba\u6b63\u5728\u4f7f\u7528\u5927\u91cf\u8d44\u6e90\uff0c\u7f51\u7edc\u5ef6\u8fdf\u53ef\u80fd\u4f1a\u53d1\u751f\u8f83\u5927\u6ce2\u52a8\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u8d85\u65f6\u53ea\u80fd\u57fa\u4e8e\u7ecf\u9a8c\u6cd5\u5219\u786e\u5b9a\u3002<\/p>\n<p>\u6d4b\u91cf\u957f\u65f6\u95f4\u548c\u591a\u53f0\u673a\u5668\u7684\u5f80\u8fd4\u65f6\u95f4\u5206\u5e03\uff0c\u5e76\u786e\u5b9a\u5ef6\u8fdf\u53d8\u5316\u7684\u671f\u671b\u503c\u3002\u7136\u540e\u8003\u8651\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u8d28\uff0c\u53ef\u4ee5\u5728\u68c0\u6d4b\u6545\u969c\u6240\u9700\u7684\u65f6\u95f4\u548c\u8d85\u65f6\u65f6\u95f4\u8fc7\u77ed\u7684\u98ce\u9669\u4e4b\u95f4\u505a\u51fa\u6743\u8861\u5224\u65ad\u3002<\/p>\n<p>\u4e0d\u4f7f\u7528\u56fa\u5b9a\u7684\u7684\u8d85\u65f6\u8bbe\u7f6e\uff0c\u800c\u662f\u6301\u7eed\u6d4b\u91cf\u54cd\u5e94\u65f6\u95f4\u53ca\u5176\u53d8\u52a8\uff0c\u5e76\u6839\u636e\u89c2\u6d4b\u5230\u7684\u54cd\u5e94\u65f6\u95f4\u5206\u5e03\u81ea\u52a8\u8c03\u6574\u8d85\u65f6\u65f6\u95f4\u4e5f\u662f\u4e0d\u9519\u7684\u9009\u62e9\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5728Akka\u548cCassandra\u4e2d\u4f7f\u7528\u7684Phi Accrual\u6545\u969c\u68c0\u6d4b\u5668\u6765\u5b9e\u73b0\u3002TCP\u7684\u91cd\u4f20\u8d85\u65f6\u4e5f\u662f\u4ee5\u7c7b\u4f3c\u7684\u65b9\u5f0f\u5de5\u4f5c\u3002<\/p>\n<h3>8.2.4 \u540c\u6b65\u7f51\u7edc\u4e0e\u5f02\u6b65\u7f51\u7edc q\u00ed y\u01d4<\/h3>\n<p>\u5982\u679c\u7f51\u7edc\u5ef6\u8fdf\u4fdd\u6301\u5728\u56fa\u5b9a\u7684\u6700\u5927\u503c\u4ee5\u5185\uff0c\u4e14\u4e0d\u53d1\u751f\u6570\u636e\u4e22\u5931\uff0c\u5219\u5206\u5e03\u5f0f\u7f51\u7edc\u5c06\u53d8\u5f97\u7b80\u5355\u5f97\u591a\u3002<\/p>\n<p>\u4f20\u7edf\u7684\u56fa\u5b9a\u7535\u8bdd\u7f51\u7edc\u975e\u5e38\u53ef\u9760\uff0c\u51e0\u4e4e\u4e0d\u4f1a\u51fa\u73b0\u8bed\u97f3\u5e27\u5ef6\u8fdf\u6216\u901a\u8bdd\u4e2d\u65ad\u7684\u95ee\u9898\u3002\u7535\u8bdd\u4ea4\u6d41\u5177\u6709\u4f4e\u5ef6\u8fdf\u4e14\u80fd\u4f20\u8f93\u4eba\u7c7b\u8bed\u97f3\u91c7\u6837\u6240\u9700\u7684\u5e26\u5bbd\u3002\u62e8\u6253\u7535\u8bdd\u540e\uff0c\u7535\u8def\u4f1a\u5efa\u7acb\u8fde\u63a5\uff0c\u5e76\u4fdd\u8bc1\u4e86\u4e00\u5b9a\u6570\u91cf\u7684\u5e26\u5bbd\u5728\u6574\u4e2a\u901a\u8bdd\u8def\u5f84\u4e0a\u3002\u8fd9\u4e2a\u7535\u8def\u4f1a\u4e00\u76f4\u4fdd\u6301\u76f4\u5230\u901a\u8bdd\u7ed3\u675f\u3002\u4e0b\u4e00\u4e2a\u7f51\u7edc\u8df3\u8dc3\u7684\u4f4d\u7f6e\u5df2\u7ecf\u9884\u5148\u5206\u914d\u4e8616\u4f4d\u7684\u7a7a\u95f4\uff0c\u56e0\u6b64\u4e0d\u4f1a\u53d7\u5230\u6392\u961f\u7684\u5f71\u54cd\u3002<\/p>\n<p>\u7aef\u5230\u7aef\u7684\u7f51\u7edc\u6700\u5927\u5ef6\u8fdf\u4e5f\u5c06\u4fdd\u6301\u4e0d\u53d8\u3002<\/p>\n<h4>8.2.4.1 \u53ef\u4ee5\u7b80\u5355\u5730\u9884\u6d4b\u7f51\u7edc\u5ef6\u8fdf\u5417\uff1f<\/h4>\n<p>\u7535\u8bdd\u7ebf\u8def\u5728\u5efa\u7acb\u8fde\u63a5\u671f\u95f4\u4e0d\u53ef\u4f9b\u4ed6\u4eba\u4f7f\u7528\u3002TCP\u8fde\u63a5\u7684\u6570\u636e\u5305\u5c06\u5229\u7528\u53ef\u7528\u7684\u5e26\u5bbd\u3002<\/p>\n<p>\u6570\u636e\u4e2d\u5fc3\u7684\u7f51\u7edc\u548c\u4e92\u8054\u7f51\u662f\u9488\u5bf9\u5177\u6709\u7a81\u53d1\u6027\u6d41\u91cf\u8fdb\u884c\u4f18\u5316\u7684\u3002\u5982\u679c\u9700\u8981\u7684\u4f20\u8f93\u901f\u5ea6\u53d8\u5316\u5f88\u5927\uff0c\u90a3\u4e48\u5206\u7ec4\u4ea4\u6362\u65b9\u5f0f\u66f4\u5408\u9002\uff1b\u4f46\u5982\u679c\u6052\u5b9a\u7684\u4f20\u8f93\u901f\u5ea6\u5df2\u7ecf\u8db3\u591f\uff0c\u90a3\u4e48\u7535\u8def\u4ea4\u6362\u66f4\u9002\u5408\u3002\u5982\u679c\u4f7f\u7528\u7535\u8def\u4ea4\u6362\u6765\u8c03\u6574\u4f20\u8f93\u901f\u5ea6\uff0c\u5c31\u9700\u8981\u8fdb\u884c\u9002\u5f53\u7684\u5206\u914d\uff0c\u4ee5\u907f\u514d\u8fc7\u5269\u6216\u4e0d\u8db3\u3002<\/p>\n<h2>8.3 \u4f4e\u53ef\u9760\u6027\u7684\u65f6\u949f<\/h2>\n<p>\u65f6\u949f\u548c\u65f6\u95f4\u90fd\u5f88\u91cd\u8981\u3002\u7531\u4e8e\u901a\u4fe1\u4e0d\u662f\u5373\u65f6\u8fdb\u884c\u7684\uff0c\u6240\u4ee5\u5728\u6d88\u606f\u5230\u8fbe\u65f6\u65f6\u95f4\u5df2\u7ecf\u6d41\u901d\u3002\u6bcf\u53f0\u8ba1\u7b97\u673a\u90fd\u6709\u81ea\u5df1\u7684\u65f6\u949f\u3002NTP\uff08Network Time Protocol\uff09\u5c31\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u673a\u5236\uff0c\u7528\u4e8e\u5c06\u8fd9\u4e9b\u65f6\u949f\u8fdb\u884c\u4e00\u5b9a\u7a0b\u5ea6\u7684\u540c\u6b65\u3002<\/p>\n<h3>8.3.1 \u5355\u8c03\u589e\u52a0\u7684\u65f6\u949f\u548c\u65f6\u523b\u7684\u65f6\u949f<\/h3>\n<p>\u73b0\u4ee3\u7535\u8111\u5177\u6709\u4e24\u79cd\u4e0d\u540c\u7684\u65f6\u949f\u3002\u4e00\u79cd\u662f\u65f6\u949f\uff0c\u53e6\u4e00\u79cd\u662f\u5355\u8c03\u9012\u589e\u7684\u65f6\u949f\u3002<\/p>\n<h4>8.3.1.1 \u65f6\u95f4\u7684\u65f6\u949f<\/h4>\n<p>\u65f6\u949f\u7684\u4f5c\u7528\u662f\u8fd4\u56de\u5f53\u524d\u65e5\u671f\u548c\u65f6\u95f4\uff0c\u4e5f\u88ab\u79f0\u4e3a\u5b9e\u65f6\u65f6\u95f4\u6216\u5899\u4e0a\u7684\u65f6\u95f4\u3002Linux\u7684clock_gettime(CLOCK_REALTIME)\u8fd4\u56de\u7684\u662f\u81ea\u7eaa\u5143\u4ee5\u6765\u7ecf\u8fc7\u7684\u79d2\u6570\u3002\u65f6\u949f\u4f1a\u4e0eNTP\u540c\u6b65\u3002\u56e0\u6b64\uff0c\u5728\u540c\u6b65\u65f6\u53ef\u80fd\u4f1a\u8df3\u56de\u4e4b\u524d\u7684\u65f6\u95f4\uff0c\u6240\u4ee5\u4e0d\u9002\u5408\u7528\u6765\u6d4b\u91cf\u6d88\u8017\u65f6\u95f4\u3002<\/p>\n<h4>8.3.1.2 \u949f\u9891\u5355\u8c03\u589e\u52a0<\/h4>\n<p>\u9002\u7528\u4e8e\u6d4b\u91cf\u65f6\u95f4\u9650\u5236\u3001\u670d\u52a1\u54cd\u5e94\u65f6\u95f4\u7b49\u3002\u5728Linux\u4e2d\uff0c\u4f7f\u7528clock_gettime(CLOCK_MONOTONIC)\u53ef\u4ee5\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002\u5b83\u4fdd\u8bc1\u65f6\u949f\u59cb\u7ec8\u5411\u524d\u8fd0\u884c\u3002\u5728\u5177\u6709\u591a\u4e2aCPU\u63d2\u69fd\u7684\u670d\u52a1\u5668\u4e0a\uff0c\u6bcf\u4e2aCPU\u53ef\u80fd\u4f1a\u6709\u81ea\u5df1\u72ec\u7acb\u7684\u8ba1\u65f6\u5668\uff0c\u56e0\u6b64\u4e0d\u5e94\u8be5\u8fdb\u884c\u8de8CPU\u7684\u6bd4\u8f83\u3002<\/p>\n<h3>8.3.2 \u65f6\u95f4\u540c\u6b65\u548c\u51c6\u786e\u6027\u7684\u65f6\u949f<\/h3>\n<p>\u65f6\u949f\u7684\u540c\u6b65\u9700\u8981\u8bbe\u7f6eNTP\u670d\u52a1\u5668\u6216\u5176\u4ed6\u5916\u90e8\u65f6\u95f4\u6e90\u3002\u7136\u800c\uff0c\u540c\u6b65\u5b58\u5728\u4e00\u5b9a\u7684\u9650\u5236\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30af\u30ed\u30c3\u30af\u306f\u6e29\u5ea6\u306b\u3088\u3063\u3066\u5909\u52d5\u3057\u307e\u3059\u30021\u65e51\u56de\u306e\u540c\u671f\u306717\u79d2\u305a\u308c\u307e\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30af\u30ed\u30c3\u30af\u3068NTP\u30b5\u30fc\u30d0\u30fc\u304c\u305a\u308c\u3059\u304e\u3066\u3044\u308b\u3068\u3001\u540c\u671f\u304c\u62d2\u5426\u3055\u308c\u305f\u308a\u3001\u6642\u523b\u304c\u30ea\u30bb\u30c3\u30c8\u3055\u308c\u307e\u3059\u3002\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304b\u3089\u898b\u308b\u3068\u6642\u9593\u304c\u30b8\u30e3\u30f3\u30d7\u3057\u3066\u3044\u308b\u3088\u3046\u306b\u898b\u3048\u307e\u3059<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u8a2d\u5b9a\u306b\u3088\u3063\u3066NTP\u30b5\u30fc\u30d0\u30fc\u3068\u540c\u671f\u3067\u304d\u306a\u3044<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">NTP\u3068\u306e\u540c\u671f\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u8f3b\u8f33\u3057\u3066\u3044\u308b\u3068\u30011\u79d2\u8fd1\u3044\u8aa4\u5dee\u304c\u3067\u308b\u3053\u3068\u304c\u3042\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">NTP\u30b5\u30fc\u30d0\u30fc\u306e\u6642\u9593\u304c\u9593\u9055\u3063\u3066\u3044\u308b\uff08\u6570\u6642\u9593\u305a\u308c\u3066\u3044\u308b\uff09\u3053\u3068\u304c\u3042\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">NTP\u30b5\u30fc\u30d0\u30fc\u306b\u3088\u3063\u3066\u306f\u3046\u308b\u3046\u79d2\u306e\u8abf\u6574\u3092\u5c11\u3057\u305a\u3064\u884c\u3046\u30b5\u30fc\u30d0\u30fc\u304c\u3042\u308b\u304c\u3001\u52d5\u4f5c\u306f\u305d\u308c\u305e\u308c<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30af\u30ed\u30c3\u30af\u304c\u4eee\u60f3\u5316\u3055\u308c\u3066\u3044\u308b\u4eee\u60f3\u30de\u30b7\u30f3\u306e\u5834\u5408\u3001\u307b\u304b\u306eVM\u304c\u52d5\u4f5c\u3057\u3066\u3044\u308b\u9593\u6570\u5341\u30df\u30ea\u79d2\u4e00\u6642\u505c\u6b62\u3059\u308b\u3002\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304b\u3089\u307f\u308b\u3068\u6642\u9593\u3092\u30b8\u30e3\u30f3\u30d7\u3057\u3066\u3044\u308b\u3088\u3046\u306b\u898b\u3048\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u5236\u5fa1\u3067\u304d\u306a\u3044\u30c7\u30d0\u30a4\u30b9\uff08\u643a\u5e2f\u96fb\u8a71\u3084\u7d44\u307f\u8fbc\u307f\u30c7\u30d0\u30a4\u30b9\uff09\u3067\u306f\u3001\u30af\u30ed\u30c3\u30af\u306f\u4fe1\u983c\u3067\u304d\u306a\u3044\u3002\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306b\u624b\u3092\u5165\u308c\u3066\u30af\u30ed\u30c3\u30af\u3092\u305a\u3089\u3059\u30e6\u30fc\u30b6\u30fc\u3082\u3044\u308b<\/ul>\n<p>\u5728\u6b27\u6d32\u91d1\u878d\u5546\u54c1\u5e02\u573a\u4e2d\uff0c\u6709\u4e00\u4e9b\u8981\u6c42\u4e0eUTC\u8fdb\u884c100\u6beb\u79d2\u5185\u7684\u540c\u6b65\u7684\u4ea7\u54c1\uff0c\u4f46\u662f\u8fd9\u9700\u8981\u5927\u91cf\u7684\u52aa\u529b\u548c\u4e13\u4e1a\u77e5\u8bc6\uff08\u5982PTP\u7b49\uff09\u3002<\/p>\n<h3>8.3.3 \u5bf9\u4e8e\u540c\u6b65\u65f6\u949f\u7684\u4f9d\u8d56<\/h3>\n<p>\u5f3a\u5065\u7684\u8f6f\u4ef6\u9700\u8981\u5bf9\u4e0d\u51c6\u786e\u7684\u65f6\u949f\u8fdb\u884c\u51c6\u5907\u3002\u5982\u679c\u4f7f\u7528\u9700\u8981\u540c\u6b65\u65f6\u949f\u7684\u8f6f\u4ef6\uff0c\u5219\u5e94\u4ed4\u7ec6\u76d1\u6d4b\u6bcf\u53f0\u673a\u5668\u7684\u65f6\u949f\u504f\u5dee\u3002\u65f6\u949f\u504f\u5dee\u4f1a\u5bfc\u81f4\u6570\u636e\u4e22\u5931\uff0c\u4e0d\u4f1a\u5f15\u8d77\u5267\u70c8\u5d29\u6e83\u4f46\u53ef\u80fd\u6beb\u65e0\u5bdf\u89c9\u3002\u5982\u679c\u504f\u5dee\u8fc7\u5927\uff0c\u5219\u9700\u8981\u91c7\u53d6\u63aa\u65bd\u5982\u5c06\u5176\u4ece\u7fa4\u96c6\u4e2d\u6392\u9664\u3002<\/p>\n<h4>8.3.3.1 \u5177\u6709\u987a\u5e8f\u5173\u7cfb\u7684\u65f6\u95f4\u6233<\/h4>\n<p>\u5728\u6d89\u53ca\u5230\u591a\u4e2a\u8282\u70b9\u7684\u4e8b\u4ef6\u6392\u5e8f\u65f6\uff0c\u8fd8\u9700\u8981\u6ce8\u610f\u5230\u8282\u70b9\u95f4\u7684\u65f6\u949f\u5dee\u5f02\u3002\u5982\u679c\u5404\u4e2a\u8282\u70b9\u7684\u65f6\u949f\u4e0d\u540c\u6b65\uff0c\u5c31\u53ef\u80fd\u5bfc\u81f4\u610f\u5916\u7684\u884c\u4e3a\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d91a3913a08637a6e01a8\/65-0.jpeg\" alt=\"IMG_6211 (1).jpg\" \/><\/div>\n<p>\u8282\u70b92\u9519\u8bef\u5730\u5c06x = 1\u8bc6\u522b\u4e3a\u6700\u65b0\u7684\u5199\u5165\uff0c\u5e76\u4e22\u5f03\u4e86x = 2\u3002<\/p>\n<p>\u8fd9\u79cd\u51b2\u7a81\u907f\u514d\u7b56\u7565\u88ab\u79f0\u4e3aLWW\uff08\u6700\u540e\u5199\u5165\u8005\u80dc\u51fa\uff09\uff0c\u5728Cassandra\u548cRiak\u7b49\u65e0\u4e3b\u590d\u5236\u7cfb\u7edf\u4e2d\u4f7f\u7528\u3002<\/p>\n<p>\u901a\u8fc7\u4fdd\u7559\u201c\u6700\u8fd1\u201d\u503c\u5e76\u4e22\u5f03\u5176\u4ed6\u503c\u6765\u89e3\u51b3\u51b2\u7a81\u7684\u65b9\u6cd5\u5b58\u5728\u4e0d\u51c6\u786e\u7684\u60c5\u51b5\uff0c\u56e0\u4e3a\u201c\u6700\u8fd1\u201d\u7684\u5b9a\u4e49\u4f9d\u8d56\u4e8e\u672c\u5730\u65f6\u949f\u3002<\/p>\n<p>\u5728\u4e8b\u4ef6\u6392\u5e8f\u65b9\u9762\uff0c\u4f7f\u7528\u903b\u8f91\u65f6\u949f\u662f\u4e00\u4e2a\u5b89\u5168\u6027\u8f83\u9ad8\u7684\u9009\u62e9\u3002\u8bf7\u53c2\u9605\u7b2c197\u9875\u76845.4.4\u8282&#8221;\u5e76\u884c\u5199\u5165\u7684\u68c0\u6d4b&#8221;\u3002<\/p>\n<h4>8.3.3.2 \u65f6\u949f\u503c\u5177\u6709\u7f6e\u4fe1\u533a\u95f4<\/h4>\n<p>\u673a\u5668\u7684\u65f6\u949f\u5177\u6709\u5fae\u79d2\u548c\u7eb3\u79d2\u7ea7\u522b\u7684\u5206\u8fa8\u7387\uff0c\u4f46\u7531\u4e8e\u5404\u79cd\u56e0\u7d20\uff0c\u4e0eNTP\u670d\u52a1\u5668\u7684\u540c\u6b65\u901a\u4fe1\u7b49\uff0c\u53ef\u80fd\u4f1a\u670910\u6beb\u79d2\u7684\u8bef\u5dee\u3002\u6211\u4eec\u5e94\u8be5\u5c06\u8bfb\u53d6\u7684\u65f6\u949f\u89c6\u4e3a\u65f6\u95f4\u7684\u8303\u56f4\u5185\uff0c\u800c\u4e0d\u662f\u5355\u70b9\u7684\u65f6\u523b\u3002<\/p>\n<p>\u5927\u591a\u6570\u7cfb\u7edf\u5e76\u672a\u516c\u5f00\u5176\u8bef\u5dee\u8303\u56f4\u3002\u867d\u7136GPS\u63a5\u6536\u5668\u548c\u539f\u5b50\u949f\u662f\u4e0d\u540c\u7684\uff0c\u4f46\u5982\u679c\u4ece\u670d\u52a1\u5668\u83b7\u5f97\u65f6\u95f4\uff0c\u6211\u4eec\u65e0\u6cd5\u77e5\u9053\u8bef\u5dee\u7684\u671f\u671b\u503c\u3002<\/p>\n<p>\u8c37\u6b4c\u7684Spanner\u7684TrueTime API\u662f\u4e00\u4e2a\u4f8b\u5916\u3002\u5b83\u4f1a\u660e\u786e\u62a5\u544a\u672c\u5730\u65f6\u949f\u7684\u53ef\u4fe1\u533a\u95f4\u3002\u5b83\u4f1a\u8fd4\u56de\u53ef\u80fd\u7684\u6700\u65e9\u65f6\u95f4\u548c\u6700\u8fdf\u65f6\u95f4\u7684\u4e24\u4e2a\u503c\u3002\u5b9e\u9645\u65f6\u95f4\u4f4d\u4e8e\u8fd9\u4e2a\u533a\u95f4\u4e4b\u95f4\u3002<\/p>\n<h4>8.3.3.3 \u540c\u6b65\u65f6\u949f\u7528\u4e8e\u5168\u5c40\u5feb\u7167<\/h4>\n<p>\u5728\u5b9e\u65bd\u5feb\u7167\u9694\u79bb\u7ea7\u522b\uff087.2.2 \u5feb\u7167\u9694\u79bb\u548c\u53ef\u91cd\u590d\u8bfb\uff09\u65f6\uff0c\u6700\u5e38\u89c1\u7684\u505a\u6cd5\u662f\u9700\u8981\u751f\u6210\u9012\u589e\u7684\u4e8b\u52a1ID\u3002\u5728\u5206\u6563\u7684\u8282\u70b9\u4e0a\u751f\u6210\u9012\u589e\u7684ID\u5c06\u4ea7\u751f\u74f6\u9888\u3002<\/p>\n<p>Spanner \u4f7f\u7528\u65f6\u523b\u949f\u7684\u65f6\u95f4\u6233\u4f5c\u4e3a\u4e8b\u52a1ID\u3002\u53ea\u9700\u7b49\u5f85\u65f6\u949f\u7684\u53ef\u4fe1\u533a\u95f4\uff0c\u5c31\u53ef\u4ee5\u660e\u786e\u56e0\u679c\u5173\u7cfb\u3002\u6bcf\u4e2a\u6570\u636e\u4e2d\u5fc3\u90fd\u90e8\u7f72\u539f\u5b50\u65f6\u949f\uff0c\u5c06\u65f6\u949f\u540c\u6b65\u8bef\u5dee\u63a7\u5236\u5728\u5927\u7ea67\u6beb\u79d2\u5185\u3002<\/p>\n<h3>8.3.4 \u8fdb\u7a0b\u7684\u6682\u505c<\/h3>\n<p>\u5728\u6bcf\u4e2a\u5206\u533a\u90fd\u6709\u4e00\u4e2a\u9886\u5bfc\u8005\u7684\u6570\u636e\u5e93\u4e2d\uff0c\u67d0\u4e2a\u8282\u70b9\u60f3\u8981\u786e\u5b9a\u81ea\u5df1\u662f\u5426\u7ee7\u7eed\u62c5\u4efb\u9886\u5bfc\u8005\u7684\u4e00\u79cd\u65b9\u6cd5\u662f\u4f7f\u7528\u79df\u7ea6\u3002\u79df\u7ea6\u662f\u5e26\u6709\u8d85\u65f6\u7684\u9501\uff0c\u5982\u679c\u9886\u5bfc\u8005\u5728\u8d85\u65f6\u4e4b\u524d\u6ca1\u6709\u66f4\u65b0\uff0c\u9501\u5c06\u88ab\u89e3\u9664\u5e76\u4e14\u53e6\u4e00\u4e2a\u8282\u70b9\u5c06\u6210\u4e3a\u9886\u5bfc\u8005\u3002\u5982\u679c\u67d0\u4e2a\u8282\u70b9\u9519\u8bef\u5730\u8ba4\u4e3a\u81ea\u5df1\u662f\u9886\u5bfc\u8005\uff0c\u5c06\u5141\u8bb8\u591a\u6b21\u5199\u5165\uff0c\u8fd9\u5c06\u5bfc\u81f4\u6570\u636e\u4e0d\u4e00\u81f4\u6027\u7684\u95ee\u9898\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">while<\/span> <span class=\"o\">(<\/span><span class=\"kc\">true<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"n\">request<\/span> <span class=\"o\">=<\/span> <span class=\"n\">getIncomingRequest<\/span><span class=\"o\">();<\/span>\r\n    <span class=\"c1\">\/\/ \u30ea\u30fc\u30b9\u304c\u6700\u4f4e\u3067\u308210\u79d2\u6b8b\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"o\">(<\/span><span class=\"n\">lease<\/span><span class=\"o\">.<\/span><span class=\"na\">expiryTimeMillis<\/span> <span class=\"o\">-<\/span> <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">currentTimeMillis<\/span><span class=\"o\">()<\/span> <span class=\"o\">&lt;<\/span> <span class=\"mi\">10000<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"n\">lease<\/span> <span class=\"o\">=<\/span> <span class=\"n\">lease<\/span><span class=\"o\">.<\/span><span class=\"na\">renew<\/span><span class=\"o\">()<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"k\">if<\/span> <span class=\"o\">(<\/span><span class=\"n\">lease<\/span><span class=\"o\">.<\/span><span class=\"na\">isValid<\/span><span class=\"o\">())<\/span> <span class=\"o\">{<\/span> <span class=\"c1\">\/\/ \u3053\u306e\u6642\u70b9\u3067\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u505c\u6b62\u3057\u305f\u3089\uff1f<\/span>\r\n        <span class=\"n\">process<\/span><span class=\"o\">(<\/span><span class=\"n\">request<\/span><span class=\"o\">);<\/span> <span class=\"c1\">\/\/ \u3053\u3053\u306e\u51e6\u7406\u304c\u9577\u6642\u9593\u304b\u304b\u3063\u305f\u3089\uff1f<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u5224\u65ad\u81ea\u5df1\u662f\u5426\u662f\u9886\u5bfc\u8005\u65f6\uff0c\u8981\u7559\u610f\u610f\u5916\u7684\u4e34\u65f6\u4e2d\u65ad\u3002\u4e34\u65f6\u4e2d\u65ad\u53ef\u80fd\u662f\u7531\u5783\u573e\u56de\u6536\u3001\u78c1\u76d8\u8bbf\u95ee\u3001\u5206\u9875\u3001\u6d3b\u52a8\u8fc1\u79fb\u3001\u4ea4\u6362\u5230\u78c1\u76d8\u3001SIGSTOP\u7b49\u539f\u56e0\u5f15\u8d77\u7684\u3002<\/p>\n<h4>8.3.4.1 \u4fdd\u8bc1\u54cd\u5e94\u65f6\u95f4<\/h4>\n<p>\u8bb8\u591a\u7cfb\u7edf\u65e0\u6cd5\u786e\u5b9a\u7ebf\u7a0b\u6216\u8fdb\u7a0b\u4f1a\u5728\u4ec0\u4e48\u65f6\u5019\u6682\u505c\u3002\u5728\u822a\u7a7a\u5668\u3001\u706b\u7bad\u3001\u673a\u5668\u4eba\u3001\u6c7d\u8f66\u7b49\u786c\u5b9e\u65f6\u7cfb\u7edf\u4e2d\uff0c\u8f6f\u4ef6\u6709\u6307\u5b9a\u54cd\u5e94\u65f6\u95f4\u7684\u622a\u6b62\u65e5\u671f\u3002<\/p>\n<p>\u5f00\u53d1\u5b9e\u65f6\u7cfb\u7edf\u6709\u4e25\u683c\u7684\u7ea6\u675f\uff0c\u4ece\u8fdb\u7a0b\u8c03\u5ea6\u5230\u4fdd\u8bc1\u6700\u574f\u60c5\u51b5\u6267\u884c\u65f6\u95f4\u7684\u51fd\u6570\u7b49\u3002\u6b64\u5916\uff0c\u4f1a\u6709\u541e\u5410\u91cf\u964d\u4f4e\u7684\u53ef\u80fd\u6027\u3002\uff08\u53c2\u89c1\u7b2c311\u9875\u7684\u4e13\u680f&#8221;\u5ef6\u8fdf\u548c\u8d44\u6e90\u5229\u7528&#8221;\uff09<\/p>\n<h4>8.3.4.2 \u901a\u8fc7\u5783\u573e\u6536\u96c6\u9650\u5236\u5f71\u54cd<\/h4>\n<p>\u901a\u8fc7\u8c03\u6574\u5783\u573e\u56de\u6536\uff0c\u53ef\u4ee5\u7f13\u89e3\u8fdb\u7a0b\u6682\u505c\u7684\u8d1f\u9762\u5f71\u54cd\u3002\u5f53\u4e00\u4e2a\u8282\u70b9\u544a\u8bc9\u53e6\u4e00\u4e2a\u8282\u70b9\u201cGC\u53ef\u80fd\u5f88\u5feb\u5c31\u9700\u8981\u201d\u65f6\uff0c\u53ef\u4ee5\u8bbe\u5b9a\u7b56\u7565\uff0c\u4f7f\u5176\u4e13\u6ce8\u4e8eGC\u5e76\u6682\u505c\u53d1\u9001\u65b0\u7684\u8bf7\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9605\u8bfb\u300a\u6570\u636e\u5bfc\u5411\u5e94\u7528\u8bbe\u8ba1\u2015\u53ef\u9760\u6027\u3001\u53ef\u6269\u5c55\u6027\u3001\u6613\u7ef4\u62a4\u6027\u9ad8\u7684\u5206\u5e03\u5f0f\u7cfb\u7edf\u8bbe\u8ba1\u539f\u7406\u300b\u3002 \u8bf7\u6ce8\u610f \u9019\u662f\u70ba\u6211\u800c\u64b0\u5beb\u7684\u6982\u8ff0\uff0c\u5176 [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-50490","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u300e\u6570\u636e\u5bfc\u5411\u5e94\u7528\u8bbe\u8ba1\u300f\u7b2c8\u7ae0\u300c\u5206\u5e03\u5f0f\u7cfb\u7edf\u7684\u95ee\u9898\u300d\u6458\u8981 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u300e\u6570\u636e\u5bfc\u5411\u5e94\u7528\u8bbe\u8ba1\u300f\u7b2c8\u7ae0\u300c\u5206\u5e03\u5f0f\u7cfb\u7edf\u7684\u95ee\u9898\u300d\/\" 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