{"id":10006198,"date":"2022-08-12T19:39:16","date_gmt":"2022-08-12T11:39:16","guid":{"rendered":"https:\/\/ityet.com\/?p=10006198"},"modified":"2022-08-12T19:39:16","modified_gmt":"2022-08-12T11:39:16","slug":"%e7%bd%91%e6%98%93%e4%ba%8c%e9%9d%a2%ef%bc%9akafka%e4%b8%ba%e4%bb%80%e4%b9%88%e5%90%9e%e5%90%90%e9%87%8f%e5%a4%a7%e3%80%81%e9%80%9f%e5%ba%a6%e5%bf%ab%ef%bc%9f%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10006198","title":{"rendered":"\u7f51\u6613\u4e8c\u9762\uff1aKafka\u4e3a\u4ec0\u4e48\u541e\u5410\u91cf\u5927\u3001\u901f\u5ea6\u5feb\uff1f\uff1f"},"content":{"rendered":"<p><em>\u6765\u6e90\uff1acnblogs.com\/starluke\/p\/12558952.html<\/em><\/p>\n<p>Kafka\u662f\u5927\u6570\u636e\u9886\u57df\u65e0\u5904\u4e0d\u5728\u7684\u6d88\u606f\u4e2d\u95f4\u4ef6\uff0c\u76ee\u524d\u5e7f\u6cdb\u4f7f\u7528\u5728\u4f01\u4e1a\u5185\u90e8\u7684\u5b9e\u65f6\u6570\u636e\u7ba1\u9053\uff0c\u5e76\u5e2e\u52a9\u4f01\u4e1a\u6784\u5efa\u81ea\u5df1\u7684\u6d41\u8ba1\u7b97\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n<p>Kafka\u867d\u7136\u662f\u57fa\u4e8e\u78c1\u76d8\u505a\u7684\u6570\u636e\u5b58\u50a8\uff0c\u4f46\u5374\u5177\u6709\u9ad8\u6027\u80fd\u3001\u9ad8\u541e\u5410\u3001\u4f4e\u5ef6\u65f6\u7684\u7279\u70b9\uff0c\u5176\u541e\u5410\u91cf\u52a8\u8f84\u51e0\u4e07\u3001\u51e0\u5341\u4e0a\u767e\u4e07\u3002<\/p>\n<p>\u4f46\u662f\u5f88\u591a\u4f7f\u7528\u8fc7Kafka\u7684\u4eba,\u7ecf\u5e38\u4f1a\u88ab\u95ee\u5230\u8fd9\u6837\u4e00\u4e2a\u95ee\u9898,Kafka\u4e3a\u4ec0\u4e48\u901f\u5ea6\u5feb,\u541e\u5410\u91cf\u5927\uff1b\u5927\u90e8\u5206\u88ab\u95ee\u7684\u4eba\u90fd\u662f\u4e00\u4e0b\u5b50\u5c31\u61f5\u4e86\uff0c\u6216\u8005\u662f\u53ea\u77e5\u9053\u4e00\u4e9b\u7b80\u5355\u7684\u70b9\uff0c\u672c\u6587\u5c31\u7b80\u5355\u7684\u4ecb\u7ecd\u4e00\u4e0bKafka\u4e3a\u4ec0\u4e48\u541e\u5410\u91cf\u5927\uff0c\u901f\u5ea6\u5feb\u3002<\/p>\n<p>\u53e6\u5916\uff0c\u6700\u8fd1\u9762\u8bd5\u6574\u7406\u4e86 Java \u6700\u65b0\u3001\u6700\u5168\u7684\u9762\u8bd5\u9898\uff1a<\/p>\n<blockquote><p><a href=\"https:\/\/link.segmentfault.com\/?enc=aXpaN5fiAx9h9otPpffGFQ%3D%3D.qwD%2FgpfIVs%2Fk07aZHhmGX2xk%2BH46Dyug6lCwKQGH3bE%3D\" rel=\"nofollow\">https:\/\/www.javastack.cn\/mst\/<\/a><\/p><\/blockquote>\n<h2>\u4e00\u3001\u987a\u5e8f\u8bfb\u5199<\/h2>\n<p>\u4f17\u6240\u5468\u77e5Kafka\u662f\u5c06\u6d88\u606f\u8bb0\u5f55\u6301\u4e45\u5316\u5230\u672c\u5730\u78c1\u76d8\u4e2d\u7684\uff0c\u4e00\u822c\u4eba\u4f1a\u8ba4\u4e3a\u78c1\u76d8\u8bfb\u5199\u6027\u80fd\u5dee\uff0c\u53ef\u80fd\u4f1a\u5bf9Kafka\u6027\u80fd\u5982\u4f55\u4fdd\u8bc1\u63d0\u51fa\u8d28\u7591\u3002\u5b9e\u9645\u4e0a\u4e0d\u7ba1\u662f\u5185\u5b58\u8fd8\u662f\u78c1\u76d8\uff0c\u5feb\u6216\u6162\u5173\u952e\u5728\u4e8e\u5bfb\u5740\u7684\u65b9\u5f0f\uff0c\u78c1\u76d8\u5206\u4e3a\u987a\u5e8f\u8bfb\u5199\u4e0e\u968f\u673a\u8bfb\u5199\uff0c\u5185\u5b58\u4e5f\u4e00\u6837\u5206\u4e3a\u987a\u5e8f\u8bfb\u5199\u4e0e\u968f\u673a\u8bfb\u5199\u3002\u57fa\u4e8e\u78c1\u76d8\u7684\u968f\u673a\u8bfb\u5199\u786e\u5b9e\u5f88\u6162\uff0c\u4f46\u78c1\u76d8\u7684\u987a\u5e8f\u8bfb\u5199\u6027\u80fd\u5374\u5f88\u9ad8\uff0c\u4e00\u822c\u800c\u8a00\u8981\u9ad8\u51fa\u78c1\u76d8\u968f\u673a\u8bfb\u5199\u4e09\u4e2a\u6570\u91cf\u7ea7\uff0c\u4e00\u4e9b\u60c5\u51b5\u4e0b\u78c1\u76d8\u987a\u5e8f\u8bfb\u5199\u6027\u80fd\u751a\u81f3\u8981\u9ad8\u4e8e\u5185\u5b58\u968f\u673a\u8bfb\u5199\u3002<\/p>\n<p>\u8fd9\u91cc\u7ed9\u51fa\u8457\u540d\u5b66\u672f\u671f\u520a ACM Queue \u4e0a\u7684\u6027\u80fd\u5bf9\u6bd4\u56fe\uff1a<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc1GQ2\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u78c1\u76d8\u7684\u987a\u5e8f\u8bfb\u5199\u662f\u78c1\u76d8\u4f7f\u7528\u6a21\u5f0f\u4e2d\u6700\u6709\u89c4\u5f8b\u7684\uff0c\u5e76\u4e14\u64cd\u4f5c\u7cfb\u7edf\u4e5f\u5bf9\u8fd9\u79cd\u6a21\u5f0f\u505a\u4e86\u5927\u91cf\u4f18\u5316\uff0cKafka\u5c31\u662f\u4f7f\u7528\u4e86\u78c1\u76d8\u987a\u5e8f\u8bfb\u5199\u6765\u63d0\u5347\u7684\u6027\u80fd\u3002Kafka\u7684message\u662f\u4e0d\u65ad\u8ffd\u52a0\u5230\u672c\u5730\u78c1\u76d8\u6587\u4ef6\u672b\u5c3e\u7684\uff0c\u800c\u4e0d\u662f\u968f\u673a\u7684\u5199\u5165\uff0c\u8fd9\u4f7f\u5f97Kafka\u5199\u5165\u541e\u5410\u91cf\u5f97\u5230\u4e86\u663e\u8457\u63d0\u5347 \u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc1GQ3\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u4e0a\u56fe\u5c31\u5c55\u793a\u4e86Kafka\u662f\u5982\u4f55\u5199\u5165\u6570\u636e\u7684\uff0c \u6bcf\u4e00\u4e2aPartition\u5176\u5b9e\u90fd\u662f\u4e00\u4e2a\u6587\u4ef6 \uff0c\u6536\u5230\u6d88\u606f\u540eKafka\u4f1a\u628a\u6570\u636e\u63d2\u5165\u5230\u6587\u4ef6\u672b\u5c3e\uff08\u865a\u6846\u90e8\u5206\uff09\u3002<\/p>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u6709\u4e00\u4e2a\u7f3a\u9677\u2014\u2014 \u6ca1\u6709\u529e\u6cd5\u5220\u9664\u6570\u636e \uff0c\u6240\u4ee5Kafka\u662f\u4e0d\u4f1a\u5220\u9664\u6570\u636e\u7684\uff0c\u5b83\u4f1a\u628a\u6240\u6709\u7684\u6570\u636e\u90fd\u4fdd\u7559\u4e0b\u6765\uff0c\u6bcf\u4e2a\u6d88\u8d39\u8005\uff08Consumer\uff09\u5bf9\u6bcf\u4e2aTopic\u90fd\u6709\u4e00\u4e2aoffset\u7528\u6765\u8868\u793a \u8bfb\u53d6\u5230\u4e86\u7b2c\u51e0\u6761\u6570\u636e \u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc1GQ4\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u4e24\u4e2a\u6d88\u8d39\u8005\uff0cConsumer1\u6709\u4e24\u4e2aoffset\u5206\u522b\u5bf9\u5e94Partition0\u3001Partition1\uff08\u5047\u8bbe\u6bcf\u4e00\u4e2aTopic\u4e00\u4e2aPartition\uff09\uff1bConsumer2\u6709\u4e00\u4e2aoffset\u5bf9\u5e94Partition2\u3002\u8fd9\u4e2aoffset\u662f\u7531\u5ba2\u6237\u7aefSDK\u8d1f\u8d23\u4fdd\u5b58\u7684\uff0cKafka\u7684Broker\u5b8c\u5168\u65e0\u89c6\u8fd9\u4e2a\u4e1c\u897f\u7684\u5b58\u5728\uff1b\u4e00\u822c\u60c5\u51b5\u4e0bSDK\u4f1a\u628a\u5b83\u4fdd\u5b58\u5230zookeeper\u91cc\u9762\u3002(\u6240\u4ee5\u9700\u8981\u7ed9Consumer\u63d0\u4f9bzookeeper\u7684\u5730\u5740)\u3002<\/p>\n<p>\u5982\u679c\u4e0d\u5220\u9664\u786c\u76d8\u80af\u5b9a\u4f1a\u88ab\u6491\u6ee1\uff0c\u6240\u4ee5Kakfa\u63d0\u4f9b\u4e86\u4e24\u79cd\u7b56\u7565\u6765\u5220\u9664\u6570\u636e\u3002\u4e00\u662f\u57fa\u4e8e\u65f6\u95f4\uff0c\u4e8c\u662f\u57fa\u4e8epartition\u6587\u4ef6\u5927\u5c0f\u3002\u5177\u4f53\u914d\u7f6e\u53ef\u4ee5\u53c2\u770b\u5b83\u7684\u914d\u7f6e\u6587\u6863\u3002<\/p>\n<h2>\u4e8c\u3001Page Cache<\/h2>\n<p>\u4e3a\u4e86\u4f18\u5316\u8bfb\u5199\u6027\u80fd\uff0cKafka\u5229\u7528\u4e86\u64cd\u4f5c\u7cfb\u7edf\u672c\u8eab\u7684Page Cache\uff0c\u5c31\u662f\u5229\u7528\u64cd\u4f5c\u7cfb\u7edf\u81ea\u8eab\u7684\u5185\u5b58\u800c\u4e0d\u662fJVM\u7a7a\u95f4\u5185\u5b58\u3002\u8fd9\u6837\u505a\u7684\u597d\u5904\u6709\uff1a<\/p>\n<ul>\n<li>\u907f\u514dObject\u6d88\u8017\uff1a\u5982\u679c\u662f\u4f7f\u7528 Java \u5806\uff0cJava\u5bf9\u8c61\u7684\u5185\u5b58\u6d88\u8017\u6bd4\u8f83\u5927\uff0c\u901a\u5e38\u662f\u6240\u5b58\u50a8\u6570\u636e\u7684\u4e24\u500d\u751a\u81f3\u66f4\u591a\u3002<\/li>\n<li>\u907f\u514dGC\u95ee\u9898\uff1a\u968f\u7740JVM\u4e2d\u6570\u636e\u4e0d\u65ad\u589e\u591a\uff0c\u5783\u573e\u56de\u6536\u5c06\u4f1a\u53d8\u5f97\u590d\u6742\u4e0e\u7f13\u6162\uff0c\u4f7f\u7528\u7cfb\u7edf\u7f13\u5b58\u5c31\u4e0d\u4f1a\u5b58\u5728GC\u95ee\u9898<\/li>\n<\/ul>\n<p>\u76f8\u6bd4\u4e8e\u4f7f\u7528JVM\u6216in-memory cache\u7b49\u6570\u636e\u7ed3\u6784\uff0c\u5229\u7528\u64cd\u4f5c\u7cfb\u7edf\u7684Page Cache\u66f4\u52a0\u7b80\u5355\u53ef\u9760\u3002<\/p>\n<p>\u9996\u5148\uff0c\u64cd\u4f5c\u7cfb\u7edf\u5c42\u9762\u7684\u7f13\u5b58\u5229\u7528\u7387\u4f1a\u66f4\u9ad8\uff0c\u56e0\u4e3a\u5b58\u50a8\u7684\u90fd\u662f\u7d27\u51d1\u7684\u5b57\u8282\u7ed3\u6784\u800c\u4e0d\u662f\u72ec\u7acb\u7684\u5bf9\u8c61\u3002<\/p>\n<p>\u5176\u6b21\uff0c\u64cd\u4f5c\u7cfb\u7edf\u672c\u8eab\u4e5f\u5bf9\u4e8ePage Cache\u505a\u4e86\u5927\u91cf\u4f18\u5316\uff0c\u63d0\u4f9b\u4e86 write-behind\u3001read-ahead\u4ee5\u53caflush\u7b49\u591a\u79cd\u673a\u5236\u3002<\/p>\n<p>\u518d\u8005\uff0c\u5373\u4f7f\u670d\u52a1\u8fdb\u7a0b\u91cd\u542f\uff0c\u7cfb\u7edf\u7f13\u5b58\u4f9d\u7136\u4e0d\u4f1a\u6d88\u5931\uff0c\u907f\u514d\u4e86in-process cache\u91cd\u5efa\u7f13\u5b58\u7684\u8fc7\u7a0b\u3002<\/p>\n<p>\u901a\u8fc7\u64cd\u4f5c\u7cfb\u7edf\u7684Page Cache\uff0cKafka\u7684\u8bfb\u5199\u64cd\u4f5c\u57fa\u672c\u4e0a\u662f\u57fa\u4e8e\u5185\u5b58\u7684\uff0c\u8bfb\u5199\u901f\u5ea6\u5f97\u5230\u4e86\u6781\u5927\u7684\u63d0\u5347\u3002<\/p>\n<h2>\u4e09\u3001\u96f6\u62f7\u8d1d<\/h2>\n<p>linux\u64cd\u4f5c\u7cfb\u7edf \u201c\u96f6\u62f7\u8d1d\u201d \u673a\u5236\u4f7f\u7528\u4e86sendfile\u65b9\u6cd5\uff0c \u5141\u8bb8\u64cd\u4f5c\u7cfb\u7edf\u5c06\u6570\u636e\u4ecePage Cache \u76f4\u63a5\u53d1\u9001\u5230\u7f51\u7edc\uff0c\u53ea\u9700\u8981\u6700\u540e\u4e00\u6b65\u7684copy\u64cd\u4f5c\u5c06\u6570\u636e\u590d\u5236\u5230 NIC \u7f13\u51b2\u533a\uff0c \u8fd9\u6837\u907f\u514d\u91cd\u65b0\u590d\u5236\u6570\u636e \u3002\u793a\u610f\u56fe\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc1GQ5\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u901a\u8fc7\u8fd9\u79cd \u201c\u96f6\u62f7\u8d1d\u201d \u7684\u673a\u5236\uff0cPage Cache \u7ed3\u5408 sendfile \u65b9\u6cd5\uff0cKafka\u6d88\u8d39\u7aef\u7684\u6027\u80fd\u4e5f\u5927\u5e45\u63d0\u5347\u3002\u8fd9\u4e5f\u662f\u4e3a\u4ec0\u4e48\u6709\u65f6\u5019\u6d88\u8d39\u7aef\u5728\u4e0d\u65ad\u6d88\u8d39\u6570\u636e\u65f6\uff0c\u6211\u4eec\u5e76\u6ca1\u6709\u770b\u5230\u78c1\u76d8io\u6bd4\u8f83\u9ad8\uff0c\u6b64\u523b\u6b63\u662f\u64cd\u4f5c\u7cfb\u7edf\u7f13\u5b58\u5728\u63d0\u4f9b\u6570\u636e\u3002<\/p>\n<p>\u5f53Kafka\u5ba2\u6237\u7aef\u4ece\u670d\u52a1\u5668\u8bfb\u53d6\u6570\u636e\u65f6\uff0c\u5982\u679c\u4e0d\u4f7f\u7528\u96f6\u62f7\u8d1d\u6280\u672f\uff0c\u90a3\u4e48\u5927\u81f4\u9700\u8981\u7ecf\u5386\u8fd9\u6837\u7684\u4e00\u4e2a\u8fc7\u7a0b\uff1a<\/p>\n<ol>\n<li>\u64cd\u4f5c\u7cfb\u7edf\u5c06\u6570\u636e\u4ece\u78c1\u76d8\u4e0a\u8bfb\u5165\u5230\u5185\u6838\u7a7a\u95f4\u7684\u8bfb\u7f13\u51b2\u533a\u4e2d\u3002<\/li>\n<li>\u5e94\u7528\u7a0b\u5e8f\uff08\u4e5f\u5c31\u662fKafka\uff09\u4ece\u5185\u6838\u7a7a\u95f4\u7684\u8bfb\u7f13\u51b2\u533a\u5c06\u6570\u636e\u62f7\u8d1d\u5230\u7528\u6237\u7a7a\u95f4\u7684\u7f13\u51b2\u533a\u4e2d\u3002<\/li>\n<li>\u5e94\u7528\u7a0b\u5e8f\u5c06\u6570\u636e\u4ece\u7528\u6237\u7a7a\u95f4\u7684\u7f13\u51b2\u533a\u518d\u5199\u56de\u5230\u5185\u6838\u7a7a\u95f4\u7684socket\u7f13\u51b2\u533a\u4e2d\u3002<\/li>\n<li>\u64cd\u4f5c\u7cfb\u7edf\u5c06socket\u7f13\u51b2\u533a\u4e2d\u7684\u6570\u636e\u62f7\u8d1d\u5230NIC\u7f13\u51b2\u533a\u4e2d\uff0c\u7136\u540e\u901a\u8fc7\u7f51\u7edc\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\u3002<\/li>\n<\/ol>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc1GQ6\" alt=\"no zero cop\" title=\"no zero cop\" loading=\"lazy\"><\/p>\n<p>\u4ece\u56fe\u4e2d\u53ef\u4ee5\u770b\u5230\uff0c\u6570\u636e\u5728\u5185\u6838\u7a7a\u95f4\u548c\u7528\u6237\u7a7a\u95f4\u4e4b\u95f4\u7a7f\u68ad\u4e86\u4e24\u6b21\uff0c\u90a3\u4e48\u80fd\u5426\u907f\u514d\u8fd9\u4e2a\u591a\u4f59\u7684\u8fc7\u7a0b\u5462\uff1f\u5f53\u7136\u53ef\u4ee5\uff0cKafka\u4f7f\u7528\u4e86\u96f6\u62f7\u8d1d\u6280\u672f\uff0c\u4e5f\u5c31\u662f\u76f4\u63a5\u5c06\u6570\u636e\u4ece\u5185\u6838\u7a7a\u95f4\u7684\u8bfb\u7f13\u51b2\u533a\u76f4\u63a5\u62f7\u8d1d\u5230\u5185\u6838\u7a7a\u95f4\u7684socket\u7f13\u51b2\u533a\uff0c\u7136\u540e\u518d\u5199\u5165\u5230NIC\u7f13\u51b2\u533a\uff0c\u907f\u514d\u4e86\u5728\u5185\u6838\u7a7a\u95f4\u548c\u7528\u6237\u7a7a\u95f4\u4e4b\u95f4\u7a7f\u68ad\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc1GQ7\" alt=\"zero copy\" title=\"zero copy\" loading=\"lazy\"><\/p>\n<p>\u53ef\u89c1\uff0c\u8fd9\u91cc\u7684\u96f6\u62f7\u8d1d\u5e76\u975e\u6307\u4e00\u6b21\u62f7\u8d1d\u90fd\u6ca1\u6709\uff0c\u800c\u662f\u907f\u514d\u4e86\u5728\u5185\u6838\u7a7a\u95f4\u548c\u7528\u6237\u7a7a\u95f4\u4e4b\u95f4\u7684\u62f7\u8d1d\u3002\u5982\u679c\u771f\u662f\u4e00\u6b21\u62f7\u8d1d\u90fd\u6ca1\u6709\uff0c\u90a3\u4e48\u6570\u636e\u53d1\u7ed9\u5ba2\u6237\u7aef\u5c31\u6ca1\u4e86\u4e0d\u662f\uff1f\u4e0d\u8fc7\uff0c\u5149\u662f\u7701\u4e0b\u4e86\u8fd9\u4e00\u6b65\u5c31\u53ef\u4ee5\u5e26\u6765\u6027\u80fd\u4e0a\u7684\u6781\u5927\u63d0\u5347\u3002<\/p>\n<h2>\u56db\u3001\u5206\u533a\u5206\u6bb5+\u7d22\u5f15<\/h2>\n<p>Kafka\u7684message\u662f\u6309topic\u5206\u7c7b\u5b58\u50a8\u7684\uff0ctopic\u4e2d\u7684\u6570\u636e\u53c8\u662f\u6309\u7167\u4e00\u4e2a\u4e00\u4e2a\u7684partition\u5373\u5206\u533a\u5b58\u50a8\u5230\u4e0d\u540cbroker\u8282\u70b9\u3002\u6bcf\u4e2apartition\u5bf9\u5e94\u4e86\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u7684\u4e00\u4e2a\u6587\u4ef6\u5939\uff0cpartition\u5b9e\u9645\u4e0a\u53c8\u662f\u6309\u7167segment\u5206\u6bb5\u5b58\u50a8\u7684\u3002\u8fd9\u4e5f\u975e\u5e38\u7b26\u5408\u5206\u5e03\u5f0f\u7cfb\u7edf\u5206\u533a\u5206\u6876\u7684\u8bbe\u8ba1\u601d\u60f3\u3002<\/p>\n<p>\u901a\u8fc7\u8fd9\u79cd\u5206\u533a\u5206\u6bb5\u7684\u8bbe\u8ba1\uff0cKafka\u7684message\u6d88\u606f\u5b9e\u9645\u4e0a\u662f\u5206\u5e03\u5f0f\u5b58\u50a8\u5728\u4e00\u4e2a\u4e00\u4e2a\u5c0f\u7684segment\u4e2d\u7684\uff0c\u6bcf\u6b21\u6587\u4ef6\u64cd\u4f5c\u4e5f\u662f\u76f4\u63a5\u64cd\u4f5c\u7684segment\u3002\u4e3a\u4e86\u8fdb\u4e00\u6b65\u7684\u67e5\u8be2\u4f18\u5316\uff0cKafka\u53c8\u9ed8\u8ba4\u4e3a\u5206\u6bb5\u540e\u7684\u6570\u636e\u6587\u4ef6\u5efa\u7acb\u4e86\u7d22\u5f15\u6587\u4ef6\uff0c\u5c31\u662f\u6587\u4ef6\u7cfb\u7edf\u4e0a\u7684.index\u6587\u4ef6\u3002\u8fd9\u79cd\u5206\u533a\u5206\u6bb5+\u7d22\u5f15\u7684\u8bbe\u8ba1\uff0c\u4e0d\u4ec5\u63d0\u5347\u4e86\u6570\u636e\u8bfb\u53d6\u7684\u6548\u7387\uff0c\u540c\u65f6\u4e5f\u63d0\u9ad8\u4e86\u6570\u636e\u64cd\u4f5c\u7684\u5e76\u884c\u5ea6\u3002<\/p>\n<h2>\u4e94\u3001\u6279\u91cf\u8bfb\u5199<\/h2>\n<p>Kafka\u6570\u636e\u8bfb\u5199\u4e5f\u662f\u6279\u91cf\u7684\u800c\u4e0d\u662f\u5355\u6761\u7684\u3002<\/p>\n<p>\u9664\u4e86\u5229\u7528\u5e95\u5c42\u7684\u6280\u672f\u5916\uff0cKafka\u8fd8\u5728\u5e94\u7528\u7a0b\u5e8f\u5c42\u9762\u63d0\u4f9b\u4e86\u4e00\u4e9b\u624b\u6bb5\u6765\u63d0\u5347\u6027\u80fd\u3002\u6700\u660e\u663e\u7684\u5c31\u662f\u4f7f\u7528\u6279\u6b21\u3002\u5728\u5411Kafka\u5199\u5165\u6570\u636e\u65f6\uff0c\u53ef\u4ee5\u542f\u7528\u6279\u6b21\u5199\u5165\uff0c\u8fd9\u6837\u53ef\u4ee5\u907f\u514d\u5728\u7f51\u7edc\u4e0a\u9891\u7e41\u4f20\u8f93\u5355\u4e2a\u6d88\u606f\u5e26\u6765\u7684\u5ef6\u8fdf\u548c\u5e26\u5bbd\u5f00\u9500\u3002\u5047\u8bbe\u7f51\u7edc\u5e26\u5bbd\u4e3a10MB\/S\uff0c\u4e00\u6b21\u6027\u4f20\u8f9310MB\u7684\u6d88\u606f\u6bd4\u4f20\u8f931KB\u7684\u6d88\u606f10000\u4e07\u6b21\u663e\u7136\u8981\u5feb\u5f97\u591a\u3002<\/p>\n<h2>\u516d\u3001\u6279\u91cf\u538b\u7f29<\/h2>\n<p>\u5728\u5f88\u591a\u60c5\u51b5\u4e0b\uff0c\u7cfb\u7edf\u7684\u74f6\u9888\u4e0d\u662fCPU\u6216\u78c1\u76d8\uff0c\u800c\u662f\u7f51\u7edcIO\uff0c\u5bf9\u4e8e\u9700\u8981\u5728\u5e7f\u57df\u7f51\u4e0a\u7684\u6570\u636e\u4e2d\u5fc3\u4e4b\u95f4\u53d1\u9001\u6d88\u606f\u7684\u6570\u636e\u6d41\u6c34\u7ebf\u5c24\u5176\u5982\u6b64\u3002\u8fdb\u884c\u6570\u636e\u538b\u7f29\u4f1a\u6d88\u8017\u5c11\u91cf\u7684CPU\u8d44\u6e90,\u4e0d\u8fc7\u5bf9\u4e8ekafka\u800c\u8a00,\u7f51\u7edcIO\u66f4\u5e94\u8be5\u9700\u8981\u8003\u8651\u3002<\/p>\n<ol>\n<li>\u5982\u679c\u6bcf\u4e2a\u6d88\u606f\u90fd\u538b\u7f29\uff0c\u4f46\u662f\u538b\u7f29\u7387\u76f8\u5bf9\u5f88\u4f4e\uff0c\u6240\u4ee5Kafka\u4f7f\u7528\u4e86\u6279\u91cf\u538b\u7f29\uff0c\u5373\u5c06\u591a\u4e2a\u6d88\u606f\u4e00\u8d77\u538b\u7f29\u800c\u4e0d\u662f\u5355\u4e2a\u6d88\u606f\u538b\u7f29<\/li>\n<li>Kafka\u5141\u8bb8\u4f7f\u7528\u9012\u5f52\u7684\u6d88\u606f\u96c6\u5408\uff0c\u6279\u91cf\u7684\u6d88\u606f\u53ef\u4ee5\u901a\u8fc7\u538b\u7f29\u7684\u5f62\u5f0f\u4f20\u8f93\u5e76\u4e14\u5728\u65e5\u5fd7\u4e2d\u4e5f\u53ef\u4ee5\u4fdd\u6301\u538b\u7f29\u683c\u5f0f\uff0c\u76f4\u5230\u88ab\u6d88\u8d39\u8005\u89e3\u538b\u7f29<\/li>\n<li>Kafka\u652f\u6301\u591a\u79cd\u538b\u7f29\u534f\u8bae\uff0c\u5305\u62ecGzip\u548cSnappy\u538b\u7f29\u534f\u8bae<\/li>\n<\/ol>\n<p>Kafka\u901f\u5ea6\u7684\u79d8\u8bc0\u5728\u4e8e\uff0c\u5b83\u628a\u6240\u6709\u7684\u6d88\u606f\u90fd\u53d8\u6210\u4e00\u4e2a\u6279\u91cf\u7684\u6587\u4ef6\uff0c\u5e76\u4e14\u8fdb\u884c\u5408\u7406\u7684\u6279\u91cf\u538b\u7f29\uff0c\u51cf\u5c11\u7f51\u7edcIO\u635f\u8017\uff0c\u901a\u8fc7mmap\u63d0\u9ad8I\/O\u901f\u5ea6\uff0c\u5199\u5165\u6570\u636e\u7684\u65f6\u5019\u7531\u4e8e\u5355\u4e2aPartion\u662f\u672b\u5c3e\u6dfb\u52a0\u6240\u4ee5\u901f\u5ea6\u6700\u4f18\uff1b\u8bfb\u53d6\u6570\u636e\u7684\u65f6\u5019\u914d\u5408sendfile\u76f4\u63a5\u66b4\u529b\u8f93\u51fa\u3002<\/p>\n<p><strong>\u8fd1\u671f\u70ed\u6587\u63a8\u8350\uff1a<\/strong><\/p>\n<p>1.<a href=\"https:\/\/link.segmentfault.com\/?enc=X2JUsFz1I3iqiJztevSadg%3D%3D.vEpx%2FkOlNe%2BYTo%2F9HzkK3NjwBn3gEdZZGm5URM2wTrw%3D\" rel=\"nofollow\">1,000+ \u9053 Java\u9762\u8bd5\u9898\u53ca\u7b54\u6848\u6574\u7406(2022\u6700\u65b0\u7248)<\/a><\/p>\n<p>2.<a href=\"https:\/\/link.segmentfault.com\/?enc=RnZsdsFm7l4T72JMR4gtAw%3D%3D.kQdriOfwHQgsWpsImAhga1Xenoxc36BjyJQbKlU9y9RHAaweARwegZH4CUwoRQt3FR8kp94Q67bHFq4xeVdiuYk8ShPsjeLcoT3hwzVuwy8%3D\" rel=\"nofollow\">\u52b2\u7206\uff01Java \u534f\u7a0b\u8981\u6765\u4e86\u3002\u3002\u3002<\/a><\/p>\n<p>3.<a href=\"https:\/\/link.segmentfault.com\/?enc=gNx%2BVT%2B19FLNT%2FpK5DT6Gw%3D%3D.QYybsha0nWEMCLS5U87K%2FIN5ji8Y7URccFddCNptiR6ksNy%2Bji8bwUcM9iyljWRU\" rel=\"nofollow\">Spring Boot 2.x \u6559\u7a0b\uff0c\u592a\u5168\u4e86\uff01<\/a><\/p>\n<p>4.<a href=\"https:\/\/link.segmentfault.com\/?enc=M%2FTvI%2B64m2Y4qbCV3HoTfg%3D%3D.IUmwz5oNkDCK0UQUfoC3X6sZgd2YcmG709Dq08psJrKec2HG16Ungr%2BntEqSqsH9LdY9mfLTY8Hhs7RTdpCgSzMrHFsytwUyrcAecHdTuUc%3D\" rel=\"nofollow\">\u522b\u518d\u5199\u6ee1\u5c4f\u7684\u7206\u7206\u7206\u70b8\u7c7b\u4e86\uff0c\u8bd5\u8bd5\u88c5\u9970\u5668\u6a21\u5f0f\uff0c\u8fd9\u624d\u662f\u4f18\u96c5\u7684\u65b9\u5f0f\uff01\uff01<\/a><\/p>\n<p>5.<a href=\"https:\/\/link.segmentfault.com\/?enc=DSoLicyFSS55vCm6YuFvCA%3D%3D.WIVbBxCNKKEzEDHW3uvzKzZvfXQT4kZYhHk4N%2BeiiMFBkXW3bFECDD5shhqpEC%2B9eO9c%2F4qSMTn8v5mxLFqz94%2Fd1TI69OEShVWt9X%2B81%2B91ZInud1DoISoQnyFbCvL6\" rel=\"nofollow\">\u300aJava\u5f00\u53d1\u624b\u518c\uff08\u5d69\u5c71\u7248\uff09\u300b\u6700\u65b0\u53d1\u5e03\uff0c\u901f\u901f\u4e0b\u8f7d\uff01<\/a><\/p>\n<p>\u89c9\u5f97\u4e0d\u9519\uff0c\u522b\u5fd8\u4e86\u968f\u624b\u70b9\u8d5e+\u8f6c\u53d1\u54e6\uff01<\/p>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000042309730\">https:\/\/segmentfault.com\/a\/1190000042309730<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6765\u6e90\uff1acnblogs.com\/starluke\/p\/12558952.html Kafka\u662f\u5927\u6570\u636e\u9886\u57df\u65e0\u5904\u4e0d\u5728 [&hellip;]<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[],"tags":[],"class_list":["post-10006198","post","type-post","status-publish","format-standard","hentry"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10006198","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10006198"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10006198\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10006198"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10006198"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10006198"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}