{"id":1073,"date":"2015-08-26T18:19:42","date_gmt":"2015-08-26T10:19:42","guid":{"rendered":"http:\/\/www.yeetrack.com\/?p=1073"},"modified":"2015-08-26T18:19:42","modified_gmt":"2015-08-26T10:19:42","slug":"kafka%e4%bb%8b%e7%bb%8d-%e7%8e%af%e5%a2%83%e6%90%ad%e5%bb%ba","status":"publish","type":"post","link":"https:\/\/www.yeetrack.com\/?p=1073","title":{"rendered":"kafka\u4ecb\u7ecd &#038; \u73af\u5883\u642d\u5efa"},"content":{"rendered":"<h1>\u4ecb\u7ecd<\/h1>\n<p>Kafka\u662f\u4e00\u4e2a\u5206\u5e03\u5f0f\u7684\u3001\u53ef\u5206\u533a\u7684\u3001\u53ef\u590d\u5236\u7684\u6d88\u606f\u7cfb\u7edf\u3002\u5b83\u63d0\u4f9b\u4e86\u666e\u901a\u6d88\u606f\u7cfb\u7edf\u7684\u529f\u80fd\uff0c\u4f46\u5177\u6709\u81ea\u5df1\u72ec\u7279\u7684\u8bbe\u8ba1\u3002\u8fd9\u4e2a\u72ec\u7279\u7684\u8bbe\u8ba1\u662f\u4ec0\u4e48\u6837\u7684\u5462\uff1f<\/p>\n<p>\u9996\u5148\u8ba9\u6211\u4eec\u770b\u51e0\u4e2a\u57fa\u672c\u7684\u6d88\u606f\u7cfb\u7edf\u672f\u8bed\uff1a<\/p>\n<ul>\n<li>Kafka\u5c06\u6d88\u606f\u4ee5<strong>topic<\/strong>\u4e3a\u5355\u4f4d\u8fdb\u884c\u5f52\u7eb3\u3002<\/li>\n<li>\u5c06\u5411Kafka topic\u53d1\u5e03\u6d88\u606f\u7684\u7a0b\u5e8f\u79f0\u4e3a<strong>producers<\/strong>.<\/li>\n<li>\u5c06\u9884\u8ba2topics\u5e76\u6d88\u8d39\u6d88\u606f\u7684\u7a0b\u5e8f\u79f0\u4e3a<strong>consumer<\/strong>.<\/li>\n<li>Kafka\u4ee5\u96c6\u7fa4\u7684\u65b9\u5f0f\u8fd0\u884c\uff0c\u53ef\u4ee5\u7531\u4e00\u4e2a\u6216\u591a\u4e2a\u670d\u52a1\u7ec4\u6210\uff0c\u6bcf\u4e2a\u670d\u52a1\u53eb\u505a\u4e00\u4e2a<strong>broker<\/strong>.<\/li>\n<\/ul>\n<p><!--more--><\/p>\n<p>producers\u901a\u8fc7\u7f51\u7edc\u5c06\u6d88\u606f\u53d1\u9001\u5230Kafka\u96c6\u7fa4\uff0c\u96c6\u7fa4\u5411\u6d88\u8d39\u8005\u63d0\u4f9b\u6d88\u606f\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2014_07\/140721072031172.png\" alt=\"http:\/\/www.linuxidc.com\/upload\/2014_07\/140721072031172.png\" \/><\/p>\n<p>\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef\u901a\u8fc7TCP\u534f\u8bae\u901a\u4fe1\u3002Kafka\u63d0\u4f9b\u4e86Java\u5ba2\u6237\u7aef\uff0c\u5e76\u4e14\u5bf9<a href=\"https:\/\/cwiki.apache.org\/confluence\/display\/KAFKA\/Clients\">\u591a\u79cd\u8bed\u8a00<\/a>\u90fd\u63d0\u4f9b\u4e86\u652f\u6301\u3002<\/p>\n<h2>Topics\u548cLogs<\/h2>\n<p>\u4e00\u4e2atopic\u662f\u5bf9\u4e00\u7ec4\u6d88\u606f\u7684\u5f52\u7eb3\u3002\u5bf9\u6bcf\u4e2atopic\uff0cKafka \u5bf9\u5b83\u7684\u65e5\u5fd7\u8fdb\u884c\u4e86\u5206\u533a\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2014_07\/140721072031171.png\" alt=\"http:\/\/www.linuxidc.com\/upload\/2014_07\/140721072031171.png\" \/><\/p>\n<p>\u6bcf\u4e2a\u5206\u533a\u90fd\u7531\u4e00\u7cfb\u5217\u6709\u5e8f\u7684\u3001\u4e0d\u53ef\u53d8\u7684\u6d88\u606f\u7ec4\u6210\uff0c\u8fd9\u4e9b\u6d88\u606f\u88ab\u8fde\u7eed\u7684\u8ffd\u52a0\u5230\u5206\u533a\u4e2d\u3002\u5206\u533a\u4e2d\u7684\u6bcf\u4e2a\u6d88\u606f\u90fd\u6709\u4e00\u4e2a\u8fde\u7eed\u7684\u5e8f\u5217\u53f7\u53eb\u505aoffset,\u7528\u6765\u5728\u5206\u533a\u4e2d\u552f\u4e00\u7684\u6807\u8bc6\u8fd9\u4e2a\u6d88\u606f\u3002<\/p>\n<p>\u5728\u4e00\u4e2a\u53ef\u914d\u7f6e\u7684\u65f6\u95f4\u6bb5\u5185\uff0cKafka\u96c6\u7fa4\u4fdd\u7559\u6240\u6709\u53d1\u5e03\u7684\u6d88\u606f\uff0c\u4e0d\u7ba1\u8fd9\u4e9b\u6d88\u606f\u6709\u6ca1\u6709\u88ab\u6d88\u8d39\u3002\u6bd4\u5982\uff0c\u5982\u679c\u6d88\u606f\u7684\u4fdd\u5b58\u7b56\u7565\u88ab\u8bbe\u7f6e\u4e3a2\u5929\uff0c\u90a3\u4e48\u5728\u4e00\u4e2a\u6d88\u606f\u88ab\u53d1\u5e03\u7684\u4e24\u5929\u65f6\u95f4\u5185\uff0c\u5b83\u90fd\u662f\u53ef\u4ee5\u88ab\u6d88\u8d39\u7684\u3002\u4e4b\u540e\u5b83\u5c06\u88ab\u4e22\u5f03\u4ee5\u91ca\u653e\u7a7a\u95f4\u3002Kafka\u7684\u6027\u80fd\u662f\u548c\u6570\u636e\u91cf\u65e0\u5173\u7684\u5e38\u91cf\u7ea7\u7684\uff0c\u6240\u4ee5\u4fdd\u7559\u592a\u591a\u7684\u6570\u636e\u5e76\u4e0d\u662f\u95ee\u9898\u3002<\/p>\n<p>\u5b9e\u9645\u4e0a\u6bcf\u4e2aconsumer\u552f\u4e00\u9700\u8981\u7ef4\u62a4\u7684\u6570\u636e\u662f\u6d88\u606f\u5728\u65e5\u5fd7\u4e2d\u7684\u4f4d\u7f6e\uff0c\u4e5f\u5c31\u662foffset.\u8fd9\u4e2aoffset\u6709consumer\u6765\u7ef4\u62a4\uff1a\u4e00\u822c\u60c5\u51b5\u4e0b\u968f\u7740consumer\u4e0d\u65ad\u7684\u8bfb\u53d6\u6d88\u606f\uff0c\u8fd9offset\u7684\u503c\u4e0d\u65ad\u589e\u52a0\uff0c\u4f46\u5176\u5b9econsumer\u53ef\u4ee5\u4ee5\u4efb\u610f\u7684\u987a\u5e8f\u8bfb\u53d6\u6d88\u606f\uff0c\u6bd4\u5982\u5b83\u53ef\u4ee5\u5c06offset\u8bbe\u7f6e\u6210\u4e3a\u4e00\u4e2a\u65e7\u7684\u503c\u6765\u91cd\u8bfb\u4e4b\u524d\u7684\u6d88\u606f\u3002<\/p>\n<p>\u4ee5\u4e0a\u7279\u70b9\u7684\u7ed3\u5408\uff0c\u4f7fKafka consumers\u975e\u5e38\u7684\u8f7b\u91cf\u7ea7\uff1a\u5b83\u4eec\u53ef\u4ee5\u5728\u4e0d\u5bf9\u96c6\u7fa4\u548c\u5176\u4ed6consumer\u9020\u6210\u5f71\u54cd\u7684\u60c5\u51b5\u4e0b\u8bfb\u53d6\u6d88\u606f\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u547d\u4ee4\u884c\u6765\"tail\"\u6d88\u606f\u800c\u4e0d\u4f1a\u5bf9\u5176\u4ed6\u6b63\u5728\u6d88\u8d39\u6d88\u606f\u7684consumer\u9020\u6210\u5f71\u54cd\u3002<\/p>\n<p>\u5c06\u65e5\u5fd7\u5206\u533a\u53ef\u4ee5\u8fbe\u5230\u4ee5\u4e0b\u76ee\u7684\uff1a\u9996\u5148\u8fd9\u4f7f\u5f97\u6bcf\u4e2a\u65e5\u5fd7\u7684\u6570\u91cf\u4e0d\u4f1a\u592a\u5927\uff0c\u53ef\u4ee5\u5728\u5355\u4e2a\u670d\u52a1\u4e0a\u4fdd\u5b58\u3002\u53e6\u5916\u6bcf\u4e2a\u5206\u533a\u53ef\u4ee5\u5355\u72ec\u53d1\u5e03\u548c\u6d88\u8d39\uff0c\u4e3a\u5e76\u53d1\u64cd\u4f5ctopic\u63d0\u4f9b\u4e86\u4e00\u79cd\u53ef\u80fd\u3002<\/p>\n<h2>\u5206\u5e03\u5f0f<\/h2>\n<p>\u6bcf\u4e2a\u5206\u533a\u5728Kafka\u96c6\u7fa4\u7684\u82e5\u5e72\u670d\u52a1\u4e2d\u90fd\u6709\u526f\u672c\uff0c\u8fd9\u6837\u8fd9\u4e9b\u6301\u6709\u526f\u672c\u7684\u670d\u52a1\u53ef\u4ee5\u5171\u540c\u5904\u7406\u6570\u636e\u548c\u8bf7\u6c42\uff0c\u526f\u672c\u6570\u91cf\u662f\u53ef\u4ee5\u914d\u7f6e\u7684\u3002\u526f\u672c\u4f7fKafka\u5177\u5907\u4e86\u5bb9\u9519\u80fd\u529b\u3002<br \/>\n\u6bcf\u4e2a\u5206\u533a\u90fd\u7531\u4e00\u4e2a\u670d\u52a1\u5668\u4f5c\u4e3a\u201cleader\u201d\uff0c\u96f6\u6216\u82e5\u5e72\u670d\u52a1\u5668\u4f5c\u4e3a\u201cfollowers\u201d,leader\u8d1f\u8d23\u5904\u7406\u6d88\u606f\u7684\u8bfb\u548c\u5199\uff0cfollowers\u5219\u53bb\u590d\u5236leader.\u5982\u679cleader down\u4e86\uff0cfollowers\u4e2d\u7684\u4e00\u53f0\u5219\u4f1a\u81ea\u52a8\u6210\u4e3aleader\u3002\u96c6\u7fa4\u4e2d\u7684\u6bcf\u4e2a\u670d\u52a1\u90fd\u4f1a\u540c\u65f6\u626e\u6f14\u4e24\u4e2a\u89d2\u8272\uff1a\u4f5c\u4e3a\u5b83\u6240\u6301\u6709\u7684\u4e00\u90e8\u5206\u5206\u533a\u7684leader\uff0c\u540c\u65f6\u4f5c\u4e3a\u5176\u4ed6\u5206\u533a\u7684followers\uff0c\u8fd9\u6837\u96c6\u7fa4\u5c31\u4f1a\u636e\u6709\u8f83\u597d\u7684\u8d1f\u8f7d\u5747\u8861\u3002<\/p>\n<h2>Producers<\/h2>\n<p>Producer\u5c06\u6d88\u606f\u53d1\u5e03\u5230\u5b83\u6307\u5b9a\u7684topic\u4e2d,\u5e76\u8d1f\u8d23\u51b3\u5b9a\u53d1\u5e03\u5230\u54ea\u4e2a\u5206\u533a\u3002\u901a\u5e38\u7b80\u5355\u7684\u7531\u8d1f\u8f7d\u5747\u8861\u673a\u5236\u968f\u673a\u9009\u62e9\u5206\u533a\uff0c\u4f46\u4e5f\u53ef\u4ee5\u901a\u8fc7\u7279\u5b9a\u7684\u5206\u533a\u51fd\u6570\u9009\u62e9\u5206\u533a\u3002\u4f7f\u7528\u7684\u66f4\u591a\u7684\u662f\u7b2c\u4e8c\u79cd\u3002<\/p>\n<h2>Consumers<\/h2>\n<p>\u53d1\u5e03\u6d88\u606f\u901a\u5e38\u6709\u4e24\u79cd\u6a21\u5f0f\uff1a\u961f\u5217\u6a21\u5f0f\uff08<a href=\"http:\/\/en.wikipedia.org\/wiki\/Message_queue\">queuing<\/a>\uff09\u548c\u53d1\u5e03-\u8ba2\u9605\u6a21\u5f0f(<a href=\"http:\/\/en.wikipedia.org\/wiki\/Publish%E2%80%93subscribe_pattern\">publish-subscribe<\/a>)\u3002\u961f\u5217\u6a21\u5f0f\u4e2d\uff0cconsumers\u53ef\u4ee5\u540c\u65f6\u4ece\u670d\u52a1\u7aef\u8bfb\u53d6\u6d88\u606f\uff0c\u6bcf\u4e2a\u6d88\u606f\u53ea\u88ab\u5176\u4e2d\u4e00\u4e2aconsumer\u8bfb\u5230\uff1b\u53d1\u5e03-\u8ba2\u9605\u6a21\u5f0f\u4e2d\u6d88\u606f\u88ab\u5e7f\u64ad\u5230\u6240\u6709\u7684consumer\u4e2d\u3002<\/p>\n<p>Consumers\u53ef\u4ee5\u52a0\u5165\u4e00\u4e2aconsumer \u7ec4\uff0c\u5171\u540c\u7ade\u4e89\u4e00\u4e2atopic\uff0ctopic\u4e2d\u7684\u6d88\u606f\u5c06\u88ab\u5206\u53d1\u5230\u7ec4\u4e2d\u7684\u4e00\u4e2a\u6210\u5458\u4e2d\u3002\u540c\u4e00\u7ec4\u4e2d\u7684consumer\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u7a0b\u5e8f\u4e2d\uff0c\u4e5f\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u673a\u5668\u4e0a\u3002\u5982\u679c\u6240\u6709\u7684consumer\u90fd\u5728\u4e00\u4e2a\u7ec4\u4e2d\uff0c\u8fd9\u5c31\u6210\u4e3a\u4e86\u4f20\u7edf\u7684\u961f\u5217\u6a21\u5f0f\uff0c\u5728\u5404consumer\u4e2d\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u3002<\/p>\n<p>\u5982\u679c\u6240\u6709\u7684consumer\u90fd\u4e0d\u5728\u4e0d\u540c\u7684\u7ec4\u4e2d\uff0c\u8fd9\u5c31\u6210\u4e3a\u4e86\u53d1\u5e03-\u8ba2\u9605\u6a21\u5f0f\uff0c\u6240\u6709\u7684\u6d88\u606f\u90fd\u88ab\u5206\u53d1\u5230\u6240\u6709\u7684consumer\u4e2d\u3002<\/p>\n<p>\u66f4\u5e38\u89c1\u7684\u662f\uff0c\u6bcf\u4e2atopic\u90fd\u6709\u82e5\u5e72\u6570\u91cf\u7684consumer\u7ec4\uff0c\u6bcf\u4e2a\u7ec4\u90fd\u662f\u4e00\u4e2a\u903b\u8f91\u4e0a\u7684\u201c\u8ba2\u9605\u8005\u201d\uff0c\u4e3a\u4e86\u5bb9\u9519\u548c\u66f4\u597d\u7684\u7a33\u5b9a\u6027\uff0c\u6bcf\u4e2a\u7ec4\u7531\u82e5\u5e72consumer\u7ec4\u6210\u3002\u8fd9\u5176\u5b9e\u5c31\u662f\u4e00\u4e2a\u53d1\u5e03-\u8ba2\u9605\u6a21\u5f0f\uff0c\u53ea\u4e0d\u8fc7\u8ba2\u9605\u8005\u662f\u4e2a\u7ec4\u800c\u4e0d\u662f\u5355\u4e2aconsumer\u3002<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2014_07\/140721072031173.png\" alt=\"http:\/\/www.linuxidc.com\/upload\/2014_07\/140721072031173.png\" \/><\/p>\n<p>\u7531\u4e24\u4e2a\u673a\u5668\u7ec4\u6210\u7684\u96c6\u7fa4\u62e5\u67094\u4e2a\u5206\u533a (P0-P3) 2\u4e2aconsumer\u7ec4. A\u7ec4\u6709\u4e24\u4e2aconsumerB\u7ec4\u67094\u4e2a<\/p>\n<p>\u76f8\u6bd4\u4f20\u7edf\u7684\u6d88\u606f\u7cfb\u7edf\uff0cKafka\u53ef\u4ee5\u5f88\u597d\u7684\u4fdd\u8bc1\u6709\u5e8f\u6027\u3002<br \/>\n\u4f20\u7edf\u7684\u961f\u5217\u5728\u670d\u52a1\u5668\u4e0a\u4fdd\u5b58\u6709\u5e8f\u7684\u6d88\u606f\uff0c\u5982\u679c\u591a\u4e2aconsumers\u540c\u65f6\u4ece\u8fd9\u4e2a\u670d\u52a1\u5668\u6d88\u8d39\u6d88\u606f\uff0c\u670d\u52a1\u5668\u5c31\u4f1a\u4ee5\u6d88\u606f\u5b58\u50a8\u7684\u987a\u5e8f\u5411consumer\u5206\u53d1\u6d88\u606f\u3002\u867d\u7136\u670d\u52a1\u5668\u6309\u987a\u5e8f\u53d1\u5e03\u6d88\u606f\uff0c\u4f46\u662f\u6d88\u606f\u662f\u88ab\u5f02\u6b65\u7684\u5206\u53d1\u5230\u5404consumer\u4e0a\uff0c\u6240\u4ee5\u5f53\u6d88\u606f\u5230\u8fbe\u65f6\u53ef\u80fd\u5df2\u7ecf\u5931\u53bb\u4e86\u539f\u6765\u7684\u987a\u5e8f\uff0c\u8fd9\u610f\u5473\u7740\u5e76\u53d1\u6d88\u8d39\u5c06\u5bfc\u81f4\u987a\u5e8f\u9519\u4e71\u3002\u4e3a\u4e86\u907f\u514d\u6545\u969c\uff0c\u8fd9\u6837\u7684\u6d88\u606f\u7cfb\u7edf\u901a\u5e38\u4f7f\u7528\u201c\u4e13\u7528consumer\u201d\u7684\u6982\u5ff5\uff0c\u5176\u5b9e\u5c31\u662f\u53ea\u5141\u8bb8\u4e00\u4e2a\u6d88\u8d39\u8005\u6d88\u8d39\u6d88\u606f\uff0c\u5f53\u7136\u8fd9\u5c31\u610f\u5473\u7740\u5931\u53bb\u4e86\u5e76\u53d1\u6027\u3002<\/p>\n<p>\u5728\u8fd9\u65b9\u9762Kafka\u505a\u7684\u66f4\u597d\uff0c\u901a\u8fc7\u5206\u533a\u7684\u6982\u5ff5\uff0cKafka\u53ef\u4ee5\u5728\u591a\u4e2aconsumer\u7ec4\u5e76\u53d1\u7684\u60c5\u51b5\u4e0b\u63d0\u4f9b\u8f83\u597d\u7684\u6709\u5e8f\u6027\u548c\u8d1f\u8f7d\u5747\u8861\u3002\u5c06\u6bcf\u4e2a\u5206\u533a\u5206\u53ea\u5206\u53d1\u7ed9\u4e00\u4e2aconsumer\u7ec4\uff0c\u8fd9\u6837\u4e00\u4e2a\u5206\u533a\u5c31\u53ea\u88ab\u8fd9\u4e2a\u7ec4\u7684\u4e00\u4e2aconsumer\u6d88\u8d39\uff0c\u5c31\u53ef\u4ee5\u987a\u5e8f\u7684\u6d88\u8d39\u8fd9\u4e2a\u5206\u533a\u7684\u6d88\u606f\u3002\u56e0\u4e3a\u6709\u591a\u4e2a\u5206\u533a\uff0c\u4f9d\u7136\u53ef\u4ee5\u5728\u591a\u4e2aconsumer\u7ec4\u4e4b\u95f4\u8fdb\u884c\u8d1f\u8f7d\u5747\u8861\u3002\u6ce8\u610fconsumer\u7ec4\u7684\u6570\u91cf\u4e0d\u80fd\u591a\u4e8e\u5206\u533a\u7684\u6570\u91cf\uff0c\u4e5f\u5c31\u662f\u6709\u591a\u5c11\u5206\u533a\u5c31\u5141\u8bb8\u591a\u5c11\u5e76\u53d1\u6d88\u8d39\u3002<\/p>\n<p>Kafka\u53ea\u80fd\u4fdd\u8bc1\u4e00\u4e2a\u5206\u533a\u4e4b\u5185\u6d88\u606f\u7684\u6709\u5e8f\u6027\uff0c\u5728\u4e0d\u540c\u7684\u5206\u533a\u4e4b\u95f4\u662f\u4e0d\u53ef\u4ee5\u7684\uff0c\u8fd9\u5df2\u7ecf\u53ef\u4ee5\u6ee1\u8db3\u5927\u90e8\u5206\u5e94\u7528\u7684\u9700\u6c42\u3002\u5982\u679c\u9700\u8981topic\u4e2d\u6240\u6709\u6d88\u606f\u7684\u6709\u5e8f\u6027\uff0c\u90a3\u5c31\u53ea\u80fd\u8ba9\u8fd9\u4e2atopic\u53ea\u6709\u4e00\u4e2a\u5206\u533a\uff0c\u5f53\u7136\u4e5f\u5c31\u53ea\u6709\u4e00\u4e2aconsumer\u7ec4\u6d88\u8d39\u5b83\u3002<\/p>\n<h2>\u642d\u5efa\u73af\u5883<\/h2>\n<p>\u63a5\u4e0b\u6765\u4e00\u6b65\u4e00\u6b65\u642d\u5efaKafka\u8fd0\u884c\u73af\u5883\u3002<\/p>\n<ol>\n<li>\u4e0b\u8f7dKafka<br \/>\n\u4e0b\u8f7d\u6700\u65b0\u7684\u7248\u672c\u5e76\u89e3\u538b.<\/p>\n<pre><code>  tar -xzf kafka_2.9.2-0.8.1.1.tgz\n  cd kafka_2.9.2-0.8.1.1\n<\/code><\/pre>\n<\/li>\n<li>\u542f\u52a8\u670d\u52a1<br \/>\nKafka\u7528\u5230\u4e86Zookeeper\uff0c\u6240\u6709\u9996\u5148\u542f\u52a8Zookper\uff0c\u4e0b\u9762\u7b80\u5355\u7684\u542f\u7528\u4e00\u4e2a\u5355\u5b9e\u4f8b\u7684Zookkeeper\u670d\u52a1\u3002<\/p>\n<pre><code>  bin\/zookeeper-server-start.sh config\/zookeeper.properties &amp;\n  [2013-04-22 15:01:37,495] INFO Reading configuration from: config\/zookeeper.properties (org.apache.zookeeper.server.quorum.QuorumPeerConfig)\n  ...\n<\/code><\/pre>\n<p>\u73b0\u5728\u542f\u52a8Kafka:<\/p>\n<pre><code>  bin\/kafka-server-start.sh config\/server.properties\n  [2013-04-22 15:01:47,028] INFO Verifying properties (kafka.utils.VerifiableProperties)\n  [2013-04-22 15:01:47,051] INFO Property socket.send.buffer.bytes is overridden to 1048576 (kafka.utils.VerifiableProperties)\n  ...\n<\/code><\/pre>\n<\/li>\n<li>\u521b\u5efa topic<br \/>\n\u521b\u5efa\u4e00\u4e2a\u53eb\u505a\u201ctest\u201d\u7684topic\uff0c\u5b83\u53ea\u6709\u4e00\u4e2a\u5206\u533a\uff0c\u4e00\u4e2a\u526f\u672c\u3002<\/p>\n<pre><code>  bin\/kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 1 --partitions 1 --topic test\n<\/code><\/pre>\n<p>\u53ef\u4ee5\u901a\u8fc7list\u547d\u4ee4\u67e5\u770b\u521b\u5efa\u7684topic:<\/p>\n<pre><code>  bin\/kafka-topics.sh --list --zookeeper localhost:2181\n  test\n<\/code><\/pre>\n<p>\u9664\u4e86\u624b\u52a8\u521b\u5efatopic\uff0c\u8fd8\u53ef\u4ee5\u914d\u7f6ebroker\u8ba9\u5b83\u81ea\u52a8\u521b\u5efatopic.<\/li>\n<li>\u53d1\u9001\u6d88\u606f.<br \/>\nKafka \u4f7f\u7528\u4e00\u4e2a\u7b80\u5355\u7684\u547d\u4ee4\u884cproducer\uff0c\u4ece\u6587\u4ef6\u4e2d\u6216\u8005\u4ece\u6807\u51c6\u8f93\u5165\u4e2d\u8bfb\u53d6\u6d88\u606f\u5e76\u53d1\u9001\u5230\u670d\u52a1\u7aef\u3002\u9ed8\u8ba4\u7684\u6bcf\u6761\u547d\u4ee4\u5c06\u53d1\u9001\u4e00\u6761\u6d88\u606f\u3002<\/p>\n<p>\u8fd0\u884cproducer\u5e76\u5728\u63a7\u5236\u53f0\u4e2d\u8f93\u4e00\u4e9b\u6d88\u606f\uff0c\u8fd9\u4e9b\u6d88\u606f\u5c06\u88ab\u53d1\u9001\u5230\u670d\u52a1\u7aef\uff1a<\/p>\n<pre><code> bin\/kafka-console-producer.sh --broker-list localhost:9092 --topic test \n This is a messageThis is another message\n ctrl+c\u53ef\u4ee5\u9000\u51fa\u53d1\u9001\u3002\n<\/code><\/pre>\n<\/li>\n<li>\u542f\u52a8consumer<br \/>\nKafka also has a command line consumer that will dump out messages to standard output.<\/p>\n<p>Kafka\u4e5f\u6709\u4e00\u4e2a\u547d\u4ee4\u884cconsumer\u53ef\u4ee5\u8bfb\u53d6\u6d88\u606f\u5e76\u8f93\u51fa\u5230\u6807\u51c6\u8f93\u51fa\uff1a<\/p>\n<pre><code>  bin\/kafka-console-consumer.sh --zookeeper localhost:2181 --topic test --from-beginning\n  This is a message\n  This is another message\n<\/code><\/pre>\n<p>\u4f60\u5728\u4e00\u4e2a\u7ec8\u7aef\u4e2d\u8fd0\u884cconsumer\u547d\u4ee4\u884c\uff0c\u53e6\u4e00\u4e2a\u7ec8\u7aef\u4e2d\u8fd0\u884cproducer\u547d\u4ee4\u884c\uff0c\u5c31\u53ef\u4ee5\u5728\u4e00\u4e2a\u7ec8\u7aef\u8f93\u5165\u6d88\u606f\uff0c\u53e6\u4e00\u4e2a\u7ec8\u7aef\u8bfb\u53d6\u6d88\u606f\u3002<br \/>\n\u8fd9\u4e24\u4e2a\u547d\u4ee4\u90fd\u6709\u81ea\u5df1\u7684\u53ef\u9009\u53c2\u6570\uff0c\u53ef\u4ee5\u5728\u8fd0\u884c\u7684\u65f6\u5019\u4e0d\u52a0\u4efb\u4f55\u53c2\u6570\u53ef\u4ee5\u770b\u5230\u5e2e\u52a9\u4fe1\u606f\u3002<\/li>\n<li>\u642d\u5efa\u4e00\u4e2a\u591a\u4e2abroker\u7684\u96c6\u7fa4<br \/>\n\u521a\u624d\u53ea\u662f\u542f\u52a8\u4e86\u5355\u4e2abroker\uff0c\u73b0\u5728\u542f\u52a8\u67093\u4e2abroker\u7ec4\u6210\u7684\u96c6\u7fa4\uff0c\u8fd9\u4e9bbroker\u8282\u70b9\u4e5f\u90fd\u662f\u5728\u672c\u673a\u4e0a\u7684\uff1a<br \/>\n\u9996\u5148\u4e3a\u6bcf\u4e2a\u8282\u70b9\u7f16\u5199\u914d\u7f6e\u6587\u4ef6\uff1a<\/p>\n<pre><code> cp config\/server.properties config\/server-1.properties\n cp config\/server.properties config\/server-2.properties\n<\/code><\/pre>\n<p>\u5728\u62f7\u8d1d\u51fa\u7684\u65b0\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u53c2\u6570\uff1a<\/p>\n<pre><code>  config\/server-1.properties:\n      broker.id=1\n      port=9093\n      log.dir=\/tmp\/kafka-logs-1\n\n  config\/server-2.properties:\n      broker.id=2\n      port=9094\n      log.dir=\/tmp\/kafka-logs-2\n<\/code><\/pre>\n<p>broker.id\u5728\u96c6\u7fa4\u4e2d\u552f\u4e00\u7684\u6807\u6ce8\u4e00\u4e2a\u8282\u70b9\uff0c\u56e0\u4e3a\u5728\u540c\u4e00\u4e2a\u673a\u5668\u4e0a\uff0c\u6240\u4ee5\u5fc5\u987b\u5236\u5b9a\u4e0d\u540c\u7684\u7aef\u53e3\u548c\u65e5\u5fd7\u6587\u4ef6\uff0c\u907f\u514d\u6570\u636e\u88ab\u8986\u76d6\u3002<\/p>\n<p>\u521a\u624d\u5df2\u7ecf\u542f\u52a8\u53efZookeeper\u548c\u4e00\u4e2a\u8282\u70b9\uff0c\u73b0\u5728\u542f\u52a8\u53e6\u5916\u4e24\u4e2a\u8282\u70b9\uff1a<\/p>\n<pre><code>  bin\/kafka-server-start.sh config\/server-1.properties &amp;\n  bin\/kafka-server-start.sh config\/server-2.properties &amp;\n<\/code><\/pre>\n<p>\u521b\u5efa\u4e00\u4e2a\u62e5\u67093\u4e2a\u526f\u672c\u7684topic:<\/p>\n<pre><code>  bin\/kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 3 --partitions 1 --topic my-replicated-topic\n<\/code><\/pre>\n<p>\u73b0\u5728\u6211\u4eec\u642d\u5efa\u4e86\u4e00\u4e2a\u96c6\u7fa4\uff0c\u600e\u4e48\u77e5\u9053\u6bcf\u4e2a\u8282\u70b9\u7684\u4fe1\u606f\u5462\uff1f\u8fd0\u884c\u201c\"describe topics\u201d\u547d\u4ee4\u5c31\u53ef\u4ee5\u4e86\uff1a<\/p>\n<pre><code>  bin\/kafka-topics.sh --describe --zookeeper localhost:2181 --topic my-replicated-topic\n  Topic:my-replicated-topic       PartitionCount:1        ReplicationFactor:3     Configs:\n  Topic: my-replicated-topic      Partition: 0    Leader: 1       Replicas: 1,2,0 Isr: 1,2,0\n<\/code><\/pre>\n<p>\u4e0b\u9762\u89e3\u91ca\u4e00\u4e0b\u8fd9\u4e9b\u8f93\u51fa\u3002\u7b2c\u4e00\u884c\u662f\u5bf9\u6240\u6709\u5206\u533a\u7684\u4e00\u4e2a\u63cf\u8ff0\uff0c\u7136\u540e\u6bcf\u4e2a\u5206\u533a\u90fd\u4f1a\u5bf9\u5e94\u4e00\u884c\uff0c\u56e0\u4e3a\u6211\u4eec\u53ea\u6709\u4e00\u4e2a\u5206\u533a\u6240\u4ee5\u4e0b\u9762\u5c31\u53ea\u52a0\u4e86\u4e00\u884c\u3002<\/p>\n<pre><code>  leader\uff1a\u8d1f\u8d23\u5904\u7406\u6d88\u606f\u7684\u8bfb\u548c\u5199\uff0cleader\u662f\u4ece\u6240\u6709\u8282\u70b9\u4e2d\u968f\u673a\u9009\u62e9\u7684.\n  replicas\uff1a\u5217\u51fa\u4e86\u6240\u6709\u7684\u526f\u672c\u8282\u70b9\uff0c\u4e0d\u7ba1\u8282\u70b9\u662f\u5426\u5728\u670d\u52a1\u4e2d.\n  isr\uff1a\u662f\u6b63\u5728\u670d\u52a1\u4e2d\u7684\u8282\u70b9.\n<\/code><\/pre>\n<p>\u5728\u6211\u4eec\u7684\u4f8b\u5b50\u4e2d\uff0c\u8282\u70b91\u662f\u4f5c\u4e3aleader\u8fd0\u884c\u3002<br \/>\n\u5411topic\u53d1\u9001\u6d88\u606f\uff1a<\/p>\n<pre><code>  bin\/kafka-console-producer.sh --broker-list localhost:9092 --topic my-replicated-topic\n  ...\n  my test message 1my test message 2^C \n<\/code><\/pre>\n<p>\u6d88\u8d39\u8fd9\u4e9b\u6d88\u606f\uff1a<\/p>\n<pre><code>  bin\/kafka-console-consumer.sh --zookeeper localhost:2181 --from-beginning --topic my-replicated-topic\n  ...\n  my test message 1\n  my test message 2\n  ^C\n<\/code><\/pre>\n<p>\u6d4b\u8bd5\u4e00\u4e0b\u5bb9\u9519\u80fd\u529b.Broker 1\u4f5c\u4e3aleader\u8fd0\u884c\uff0c\u73b0\u5728\u6211\u4eeckill\u6389\u5b83\uff1a<\/p>\n<pre><code>  ps | grep server-1.properties7564 ttys002    0:15.91 \/System\/Library\/Frameworks\/JavaVM.framework\/Versions\/1.6\/Home\/bin\/java...\n  kill -9 7564\n<\/code><\/pre>\n<p>\u53e6\u5916\u4e00\u4e2a\u8282\u70b9\u88ab\u9009\u505a\u4e86leader,node 1 \u4e0d\u518d\u51fa\u73b0\u5728 in-sync \u526f\u672c\u5217\u8868\u4e2d\uff1a<\/p>\n<pre><code>  bin\/kafka-topics.sh --describe --zookeeper localhost:218192 --topic my-replicated-topic\n  Topic:my-replicated-topic       PartitionCount:1        ReplicationFactor:3     Configs:\n  Topic: my-replicated-topic      Partition: 0    Leader: 2       Replicas: 1,2,0 Isr: 2,0\n<\/code><\/pre>\n<p>\u867d\u7136\u6700\u521d\u8d1f\u8d23\u7eed\u5199\u6d88\u606f\u7684leader down\u6389\u4e86\uff0c\u4f46\u4e4b\u524d\u7684\u6d88\u606f\u8fd8\u662f\u53ef\u4ee5\u6d88\u8d39\u7684\uff1a<\/p>\n<pre><code>  bin\/kafka-console-consumer.sh --zookeeper localhost:2181 --from-beginning --topic my-replicated-topic\n  ...\n  my test message 1\n  my test message 2\n  ^C\n<\/code><\/pre>\n<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u4ecb\u7ecd Kafka\u662f\u4e00\u4e2a\u5206\u5e03\u5f0f\u7684\u3001\u53ef\u5206\u533a\u7684\u3001\u53ef\u590d\u5236\u7684\u6d88\u606f\u7cfb\u7edf\u3002\u5b83\u63d0\u4f9b\u4e86\u666e\u901a\u6d88\u606f\u7cfb\u7edf\u7684\u529f\u80fd\uff0c\u4f46\u5177\u6709\u81ea\u5df1\u72ec\u7279\u7684\u8bbe\u8ba1\u3002\u8fd9\u4e2a\u72ec\u7279\u7684\u8bbe\u8ba1\u662f\u4ec0\u4e48\u6837\u7684\u5462\uff1f \u9996\u5148\u8ba9\u6211\u4eec\u770b\u51e0\u4e2a\u57fa\u672c\u7684\u6d88\u606f\u7cfb\u7edf\u672f\u8bed\uff1a Kafka\u5c06\u6d88\u606f\u4ee5to&#46;&#46;&#46;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"pgc_sgb_lightbox_settings":"","footnotes":""},"categories":[34],"tags":[5,13],"class_list":["post-1073","post","type-post","status-publish","format-standard","hentry","category-software","tag-5","tag-13"],"views":3244,"_links":{"self":[{"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/posts\/1073","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1073"}],"version-history":[{"count":1,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/posts\/1073\/revisions"}],"predecessor-version":[{"id":1074,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/posts\/1073\/revisions\/1074"}],"wp:attachment":[{"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1073"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1073"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1073"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}