{"id":1143,"date":"2012-09-01T17:48:51","date_gmt":"2012-09-01T09:48:51","guid":{"rendered":"http:\/\/www.strongd.net\/?p=1143"},"modified":"2012-09-01T17:48:51","modified_gmt":"2012-09-01T09:48:51","slug":"%e5%b7%a7%e7%94%a8zookeeper%e5%ae%9e%e7%8e%b0%e5%88%86%e5%b8%83%e5%bc%8f%e5%b9%b6%e8%a1%8c%e8%ae%a1%e7%ae%97","status":"publish","type":"post","link":"https:\/\/www.strongd.net\/?p=1143","title":{"rendered":"\u5de7\u7528zookeeper\u5b9e\u73b0\u5206\u5e03\u5f0f\u5e76\u884c\u8ba1\u7b97"},"content":{"rendered":"

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\n1.20\u53f0\u673a\u5668\u540c\u65f6\u5de5\u4f5c\u65f6\uff0c\u6709\u4e00\u53f0\u673a\u5668down\u6389\u4e86\uff0c\u5176\u4ed6\u673a\u5668\u600e\u4e48\u8fdb\u884c\u63a5\u7ba1\u8ba1\u7b97\u4efb\u52a1\uff0c\u5426\u5219\u6709\u4e9b\u7528\u6237\u7684\u4e1a\u52a1\u4e0d\u4f1a\u88ab\u5904\u7406\uff0c\u9020\u6210\u7528\u6237\u670d\u52a1\u7ec8\u65ad\u3002
\n2.\u968f\u7740\u7528\u6237\u6570\u91cf\u589e\u52a0\uff0c\u6dfb\u52a0\u673a\u5668\u662f\u53ef\u4ee5\u89e3\u51b3\u8ba1\u7b97\u7684\u74f6\u9888\uff0c\u4f46\u9700\u8981\u91cd\u542f\u6240\u6709\u8ba1\u7b97\u8282\u70b9\uff0c\u5982\u679c\u9700\u8981\uff0c\u90a3\u4e48\u5c06\u4f1a\u9020\u6210\u6574\u4e2a\u7cfb\u7edf\u7684\u4e0d\u53ef\u7528\u3002
\n3.\u7528\u6237\u6570\u91cf\u589e\u52a0\u6216\u8005\u51cf\u5c11\uff0c\u8ba1\u7b97\u8282\u70b9\u4e2d\u7684\u673a\u5668\u4f1a\u51fa\u73b0\u6709\u7684\u673a\u5668\u8d44\u6e90\u4f7f\u7528\u7387\u7e41\u5fd9\uff0c\u6709\u7684\u5374\u7a7a\u95f2\uff0c\u56e0\u4e3a\u8ba1\u7b97\u8282\u70b9\u4e0d\u77e5\u9053\u5f7c\u6b64\u7684\u8fd0\u884c\u8d1f\u8f7d\u72b6\u6001\u3002
\n4.\u600e\u4e48\u53bb\u901a\u77e5\u6bcf\u4e2a\u8282\u70b9\u5f7c\u6b64\u7684\u8d1f\u8f7d\u72b6\u6001\uff0c\u600e\u4e48\u4fdd\u8bc1\u901a\u77e5\u6bcf\u4e2a\u8ba1\u7b97\u8282\u70b9\u65b9\u5f0f\u7684\u53ef\u9760\u6027\u548c\u5b9e\u65f6\u6027\u3002<\/p>\n

\u5148\u4e0d\u8bf4\u90a3\u4e48\u591a\u4e13\u4e1a\u540d\u8bcd\uff0c\u767d\u8bdd\u6765\u8bf4\u6211\u4eec\u9700\u8981\u7684\u662f\uff1a1\u8bb0\u5f55\u72b6\u6001\uff0c2\u4e8b\u4ef6\u901a\u77e5 \uff0c3\u53ef\u9760\u7a33\u5b9a\u7684\u4e2d\u592e\u8c03\u5ea6\u5668\uff0c4\u6613\u4e0a\u624b\u3001\u7ba1\u7406\u7b80\u5355\u3002
\n\u91c7\u7528Zookeeper\u5b8c\u5168\u53ef\u4ee5\u89e3\u51b3\u6211\u4eec\u7684\u95ee\u9898\uff0c\u5206\u5e03\u5f0f\u8ba1\u7b97\u4e2d\u7684\u534f\u8c03\u5458\uff0c\u89c2\u5bdf\u8005\uff0c\u5206\u5e03\u5f0f\u9501\u00a0 \u90fd\u53ef\u4ee5\u4f5c\u4e3azookeeper\u7684\u5173\u952e\u8bcd\uff0c\u5728\u7cfb\u7edf\u4e2d\u5229\u7528Zookeeper\u6765\u5904\u7406\u4e8b\u4ef6\u901a\u77e5,\u961f\u5217,\u4f18\u5148\u961f\u5217,\u9501,\u5171\u4eab\u9501\u7b49\u529f\u80fd\uff0c\u5229\u7528\u8fd9\u4e9b\u7279\u8272\u5728\u5206\u5e03\u5f0f\u8ba1\u7b97\u4e2d\u53d1\u6325\u91cd\u8981\u7684\u4f5c\u7528\u3002<\/p>\n

zookeeper\u7684\u670d\u52a1\u5668\u7aef\u662f\u91c7\u7528Java\u7f16\u5199\uff0c\u800czookeeper\u7684\u5ba2\u6237\u7aef\u4e0d\u4ec5\u53ef\u4ee5\u652f\u6301java\u8fd8\u53ef\u4ee5\u652f\u6301C\u8bed\u8a00\u7684\u5ba2\u6237\u7aef\uff0c\u5728zookeeper\u670d\u52a1\u7aef\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u6811\u72b6\u7684Key\/Vaule \u5b58\u5728\u7740\u7236\u5b50\u8282\u70b9\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/p>\n

Zookeeper\u5141\u8bb8\u591a\u4e2aClient\u5bf9\u4e00\u4e2a\u6216\u591a\u4e2aZNode\u6570\u636e\u8fdb\u884c\u76d1\u63a7\uff0c\u5f53ZNode\u6709\u53d8\u5316\u65f6\u80fd\u591f\u901a\u77e5\u5230\u76d1\u63a7\u8fd9\u4e2aZNode\u7684\u5404\u4e2aClient\uff0c\u6240\u6709\u76d1\u542c\u8fd9\u4e2a\u8282\u70b9\u7684\u6210\u5458\u90fd\u4f1a\u77e5\u9053\u4e86\uff0cZookeeper\u4f7f\u7528Watcher\u5bdf\u89c9\u4e8b\u4ef6\u4fe1\u606f,\u5f53\u5ba2\u6237\u7aef\u63a5\u6536\u5230\u4e8b\u4ef6\u4fe1\u606f,\u6bd4\u5982\u8fde\u63a5\u8d85\u65f6,\u8282\u70b9\u6570\u636e\u6539\u53d8,\u5b50\u8282\u70b9\u6539\u53d8,\u53ef\u4ee5\u8c03\u7528\u76f8\u5e94\u7684\u884c\u4e3a\u6765\u5904\u7406\u4e1a\u52a1\u903b\u8f91\u3002\u76f8\u53cd\uff0c\u5982\u679czookeeper\u5ba2\u6237\u7aef\u5bf9\u670d\u52a1\u7aef\u7684znode\u4e0d\u5173\u6ce8\uff0c\u4e0dWatcher\uff0c\u90a3\u4e48\u53d1\u751f\u4efb\u4f55\u53d8\u5316zookeeper\u7684\u5ba2\u6237\u7aef\u90fd\u4e0d\u4f1a\u6536\u5230\u4e8b\u4ef6\u901a\u77e5\u3002<\/span><\/p>\n

zookeeper\u4e2dznode\u7684\u6570\u636e\u6a21\u578b
\n\"data<\/p>\n

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\u4e0a\u8ff0Zookeeper\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u7684\u5173\u7cfb\u53c8\u662f\u4e00\u4e2a\u5178\u578b\u7684\u201c\u89c2\u5bdf\u8005\u201d\u6a21\u5f0f\uff0c\u5ba2\u6237\u7aef\u5173\u6ce8\u81ea\u5df1\u5173\u5fc3\u7684\u5bf9\u8c61(znode)\uff0c\u4e00\u65e6\u53d1\u9001\u53d8\u5316\u5c31\u7acb\u523b\u901a\u77e5\u3002\u5728\u300aHead First\u8bbe\u8ba1\u6a21\u5f0f\u300b\u4e2d\u6709\u8fd9\u6837\u7684\u4e00\u5f20\u56fe\u6765\u8868\u8fbe \u89c2\u5bdf\u8005\u6a21\u5f0f\u7684\u3002
\n\"\u201c\u89c2\u5bdf\u8005\u201d\u6a21\u5f0f\"
\n\u5982\u56fe\u6240\u793a\uff0c\u6b64\u7cfb\u7edf\u4e2d\u7684\u4e09\u4e2a\u90e8\u5206\u662f\u6c14\u8c61\u7ad9(\u83b7\u53d6\u5b9e\u9645\u6c14\u8c61\u6570\u636e\u7684\u7269\u7406\u88c5\u7f6e)\u3001WeatherData\u5bf9\u8c61(\u8ffd\u8e2a\u6765\u81ea\u6c14\u8c61\u7ad9\u7684\u6570\u636e\uff0c\u5e76\u66f4\u65b0\u5e03\u544a\u677f)\u548c\u5e03\u544a\u677f,\u518d\u6765\u770b\u770b\u767e\u5ea6\u767e\u79d1\u5bf9\u201c\u89c2\u5bdf\u8005\u201d\u6a21\u5f0f\u7684\u89e3\u91ca\uff1ahttp:\/\/baike.baidu.com\/view\/1854779.htm<\/span><\/p>\n

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