{"id":1157,"date":"2021-03-12T17:11:33","date_gmt":"2021-03-12T09:11:33","guid":{"rendered":"http:\/\/www.rain1024.com\/?p=1157"},"modified":"2023-08-07T20:57:23","modified_gmt":"2023-08-07T12:57:23","slug":"%e4%bd%bf%e7%94%a8cyclicbarrier%e6%8e%a7%e5%88%b6kafka%e5%a4%9a%e7%ba%bf%e7%a8%8b%e6%b6%88%e8%b4%b9%e6%b6%88%e6%81%af%e7%9a%84%e4%bd%8d%e7%a7%bb%e6%8f%90%e4%ba%a4%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"http:\/\/rain1024.com\/index.php\/2021\/03\/12\/%e4%bd%bf%e7%94%a8cyclicbarrier%e6%8e%a7%e5%88%b6kafka%e5%a4%9a%e7%ba%bf%e7%a8%8b%e6%b6%88%e8%b4%b9%e6%b6%88%e6%81%af%e7%9a%84%e4%bd%8d%e7%a7%bb%e6%8f%90%e4%ba%a4%e9%97%ae%e9%a2%98\/","title":{"rendered":"\u4f7f\u7528CyclicBarrier\u63a7\u5236Kafka\u591a\u7ebf\u7a0b\u6d88\u8d39\u6d88\u606f\u7684\u4f4d\u79fb\u63d0\u4ea4\u95ee\u9898"},"content":{"rendered":"

\u4f7f\u7528CyclicBarrier\u63a7\u5236Kafka\u591a\u7ebf\u7a0b\u6d88\u8d39\u6d88\u606f\u7684\u4f4d\u79fb\u63d0\u4ea4\u95ee\u9898<\/h1>\n

Kafka\u4e2d\u6d88\u8d39\u8005\u662f\u7ebf\u7a0b\u4e0d\u5b89\u5168\u7684\uff0c\u4e00\u4e2atopic\u53ea\u80fd\u88ab\u4e00\u4e2a\u6d88\u8d39\u7ec4\u4e2d\u7684\u6d88\u8d39\u8005\u6d88\u8d39\uff0c\u60f3\u8981\u63d0\u9ad8\u6570\u636e\u6d88\u8d39\u80fd\u529b\uff0c\u53ef\u4ee5\u589e\u52a0\u5206\u533a\u6570\uff0c\u56e0\u4e3a\u6d88\u8d39\u8005\u6570\u53ef\u4ee5\u548c\u5206\u533a\u6570\u8fdb\u884c\u5bf9\u5e94\uff0c\u5f53\u6d88\u8d39\u8005\u6570\u5927\u4e8e\u5206\u533a\u6570\u65f6\uff0c\u591a\u4f59\u7684\u6d88\u8d39\u8005\u5c06\u5904\u4e8e\u7a7a\u95f2\u72b6\u6001\uff0c\u6216\u8005\u4e5f\u53ef\u4ee5\u5728\u6bcf\u4e2a\u7ebf\u7a0b\u4e2d\u521b\u5efa\u4e00\u4e2a\u6d88\u8d39\u8005\u5b9e\u4f8b\uff0c\u8fd9\u6837\u4e5f\u53ef\u4ee5\u5bf9\u6570\u636e\u6765\u5904\u7406\uff0c\u4f46\u521b\u5efa\u591a\u4e2a\u6d88\u8d39\u8005\u5b9e\u4f8b\u5fc5\u7136\u4f1a\u9020\u6210\u8d44\u6e90\u7684\u6d6a\u8d39\u3002\u901a\u8fc7\u7ebf\u7a0b\u6c60\u6765\u5bf9\u6570\u636e\u8fdb\u884c\u6d88\u8d39\uff0c\u5c31\u4f1a\u5b58\u5728\u4f4d\u79fb\u63d0\u4ea4\u7684\u95ee\u9898\uff0c\u4ece\u800c\u5f15\u53d1\u6570\u636e\u4e22\u5931\u6216\u91cd\u590d\uff0c\u6240\u4ee5\u5bf9\u4f4d\u79fb\u7684\u63d0\u4ea4\u8981\u683c\u5916\u5904\u7406\uff0c\u6d88\u8d39\u8005\u9ed8\u8ba4\u662f\u5b9a\u65f6\u63d0\u4ea4\u4f4d\u79fb\u4fe1\u606f\u7684\uff0c\u5982\u679c\u9700\u8981\u624b\u52a8\u63d0\u4ea4\uff0c\u8981\u5148\u4fee\u6539\u914d\u7f6e\u53c2\u6570\u5173\u95ed\u81ea\u52a8\u63d0\u4ea4\uff0c\u518d\u901a\u8fc7\u4ee3\u7801\u91cc\u8c03\u7528commitSync()\u65b9\u6cd5\u3002<\/p>\n

\u7531\u4e8e\u591a\u7ebf\u7a0b\u7684\u4e0d\u53ef\u63a7\u6027\uff0c\u5982\u679c\u8ba9\u6bcf\u4e2a\u7ebf\u7a0b\u5355\u72ec\u6765\u83b7\u53d6\u6570\u636e\u518d\u63d0\u4ea4\u4f4d\u79fb\uff0c\u5f88\u6709\u53ef\u80fd\u5c31\u4f1a\u9020\u6210\u4f4d\u79fb\u9519\u4f4d\u7b49\u95ee\u9898\uff0c\u5982\u4f55\u5408\u7406\u7684\u63a7\u5236\u7ebf\u7a0b\u4e4b\u95f4\u4efb\u52a1\u5904\u7406\u548c\u4f4d\u79fb\u63d0\u4ea4\u95ee\u9898\uff0c\u8fd9\u91cc\u91c7\u7528CyclicBarrier\u5de5\u5177\u7c7b\uff0c\u5b83\u7684\u672c\u8d28\u662f\u4e00\u79cd\u6bd4\u8f83\u7279\u522b\u7684\u9501\uff0c\u901a\u8fc7\u914d\u7f6e\u7ebf\u7a0b\u6570\uff0c\u5f53\u5230\u8fbe\u6307\u5b9a\u7ebf\u7a0b\u6570\u540e\u518d\u7edf\u4e00\u6267\u884c\u67d0\u4e9b\u64cd\u4f5c\uff0c\u8fd9\u4e9b\u7279\u6027\u5f88\u9002\u5408\u7528\u6765\u63a7\u5236\u4f4d\u79fb\u7684\u63d0\u4ea4\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u62c9\u53d6\u5230\u7684\u6570\u636e\u5206\u914d\u5230\u7ebf\u7a0b\u6c60\u4e2d\uff0c\u5f53\u6240\u6709\u7ebf\u7a0b\u90fd\u5904\u7406\u5b8c\u6210\u540e\uff0c\u89e6\u53d1CyclicBarrier\u4e2d\u7684\u63d0\u4ea4\u4efb\u52a1\uff0c\u8fdb\u884c\u4e00\u6b21\u63d0\u4ea4\uff0c\u63a5\u7740\u518d\u5206\u914d\u4e0b\u4e00\u8f6e\u7684\u6570\u636e\u3002<\/p>\n

\u4ee5\u4e0b\u4fbf\u662f\u6839\u636e\u8fd9\u4e00\u7b56\u7565\u7f16\u5199\u7684\u4ee3\u7801\uff0c\u4ec5\u4f9b\u53c2\u8003\uff0c\u56e0\u4e3a\u5c1a\u672a\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u4f7f\u7528\uff0c\u53ea\u662f\u5bf9\u8fd9\u79cd\u601d\u8def\u63d0\u9ad8\u4e00\u79cd\u5b9e\u73b0\u65b9\u5f0f\uff0c\u53ef\u80fd\u8fd8\u5b58\u5728\u4e9b\u95ee\u9898\uff0c\u5982\u5f53\u8fd9\u4e00\u6279\u62c9\u53d6\u7684\u6570\u636e\u5c0f\u4e8e\u7ebf\u7a0b\u6c60\u4e2d\u7ebf\u7a0b\u6570\u8be5\u5982\u4f55\u7b49\u5f85\uff0c\u4f1a\u4e0d\u4f1a\u5b58\u5728\u77ed\u677f\u6548\u5e94\uff0c\u5bfc\u81f4\u5176\u4ed6\u7ebf\u7a0b\u5b8c\u6210\u540e\u4e00\u76f4\u7b49\u5f85\u67d0\u4e2a\u7ebf\u7a0b\u6267\u884c\uff0c\u9020\u6210\u77ed\u65f6\u95f4\u4f4d\u79fb\u63d0\u4ea4\u963b\u585e\u3002<\/p>\n

\u603b\u4f53\u601d\u8def\u6709\u70b9\u7c7b\u4f3c\u4e8e\u6ed1\u52a8\u7a97\u53e3\uff0c\u6bcf\u6b21\u4e00\u6279\u4e00\u6279\u7684\u5904\u7406\uff0c\u7b49\u5f85\u6700\u540e\u4e00\u4e2a\u5904\u7406\u5b8c\u6210\uff0c\u518d\u5411\u524d\u6ed1\u52a8\u3002<\/h4>\n
public class KafkaMultiThread {\n\n    private static final Logger LOG = LoggerFactory\n            .getLogger(KafkaMultiThread.class);\n\n    public static void main(String[] args) {\n        \/\/\u8fd9\u91cc\u521b\u5efa\u4e00\u4e2a\u6d88\u8d39\u8005\uff0c\u4f7f\u7528\u5916\u90e8\u7684\u914d\u7f6e\u6587\u4ef6\u4fe1\u606f\n        KafkaConsumer<String, String> kafkaConsumer = new KafkaConsumer<>(new Properties());\n        \/\/\u8ba2\u9605\u4e3b\u9898\n        kafkaConsumer.subscribe(Arrays.asList(\"topic-test\"));\n        \/\/\u9700\u8981\u521b\u5efa\u7684\u7ebf\u7a0b\u6570\uff0c\u8fd9\u91cc\u7ebf\u7a0b\u6c60\u6570\u548cCyclicBarrier\u7684\u6570\u91cf\u8981\u4e00\u81f4\n        int threadNumber = 10;\n        ExecutorService pool = Executors.newFixedThreadPool(threadNumber);\n        CyclicBarrier cyclicBarrier = new CyclicBarrier(threadNumber,()->{\n            LOG.info(\"\u4e00\u6279\u6570\u636e\u5904\u7406\u5b8c\u6bd5\uff0c\u7edf\u4e00\u63d0\u4ea4\u4f4d\u79fb\");\n            kafkaConsumer.commitSync();\n        });\n        \/\/\u8f6e\u8be2\u83b7\u53d6\u6d88\u606f\n        while (true) {\n            ConsumerRecords<String, String> records = kafkaConsumer.poll(1000);\n            \/\/\u5bf9\u62c9\u53d6\u5230\u4e00\u6279\u6570\u636e\u5206\u522b\u653e\u5165\u7ebf\u7a0b\u6c60\u4e2d\n            for (ConsumerRecord<String, String> record : records) {\n                pool.execute(new KafkaHandle(record,cyclicBarrier));\n            }\n        }\n\n    }\n}\n\n\/**\n * \u5355\u72ec\u5904\u7406\u7684\u7ebf\u7a0b\n *\/\nclass KafkaHandle implements Runnable{\n    private static final Logger LOG = LoggerFactory\n            .getLogger(KafkaHandle.class);\n\n    ConsumerRecord<String, String> record;\n    CyclicBarrier cyclicBarrier;\n\n    \/**\n     * \u6784\u9020\u51fd\u6570\u521d\u59cb\u5316\n     * @param record \u6d88\u606f\u5185\u5bb9\n     * @param cyclicBarrier \u4e3b\u7ebf\u7a0b\u4e2d\u7684CyclicBarrier\n     *\/\n    public KafkaHandle(ConsumerRecord<String, String> record, CyclicBarrier cyclicBarrier) {\n        this.record = record;\n        this.cyclicBarrier = cyclicBarrier;\n    }\n\n    @Override\n    public void run() {\n        \/\/\u6a21\u62df\u5904\u7406\u5df2\u5206\u914d\u7684\u6d88\u606f\n        LOG.info(\"offset = %d, value = %s\", record.offset(), record.value());\n        \/\/\u8fd9\u91cc\u5047\u8bbe\u9700\u8981\u5c06\u6570\u636e\u8f6c\u6362\u4e3ajson\n        Map<String, Object> json = JSONUtil.parseObj(record.value());\n        LOG.info(String.valueOf(json.size()));\n        try {\n            \/\/\u5904\u7406\u5b8c\u6bd5\u540e\u8fdb\u5165\u7b49\u5f85\n            cyclicBarrier.await();\n        } catch (Exception e) {\n            e.printStackTrace();\n        }\n    }\n}\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
Kafka\u4e2d\u6d88\u8d39\u8005\u662f\u7ebf\u7a0b\u4e0d\u5b89\u5168\u7684\uff0c\u4e00\u4e2atopic\u53ea\u80fd\u88ab\u4e00\u4e2a\u6d88\u8d39\u7ec4\u4e2d\u7684\u6d88\u8d39\u8005\u6d88\u8d39\uff0c\u60f3\u8981\u63d0\u9ad8\u6570\u636e\u6d88\u8d39\u80fd\u529b\uff0c\u53ef\u4ee5\u589e\u52a0\u5206\u533a\u6570\uff0c\u56e0\u4e3a\u6d88\u8d39\u8005\u6570\u53ef\u4ee5\u548c\u5206\u533a\u6570\u8fdb\u884c\u5bf9\u5e94\uff0c\u5f53\u6d88\u8d39\u8005\u6570\u5927\u4e8e\u5206\u533a\u6570\u65f6\uff0c\u591a\u4f59\u7684\u6d88\u8d39\u8005\u5c06\u5904\u4e8e\u7a7a\u95f2\u72b6\u6001\uff0c\u6216\u8005\u4e5f\u53ef\u4ee5\u5728\u6bcf\u4e2a\u7ebf\u7a0b\u4e2d\u521b\u5efa\u4e00\u4e2a\u6d88\u8d39\u8005\u5b9e\u4f8b\uff0c\u8fd9\u6837\u4e5f\u53ef\u4ee5\u5bf9\u6570\u636e\u6765\u5904\u7406\uff0c\u4f46\u521b\u5efa\u591a\u4e2a\u6d88\u8d39\u8005\u5b9e\u4f8b\u5fc5\u7136\u4f1a\u9020\u6210\u8d44\u6e90\u7684\u6d6a\u8d39\u3002\u901a\u8fc7\u7ebf\u7a0b\u6c60\u6765\u5bf9\u6570\u636e\u8fdb\u884c\u6d88\u8d39\uff0c\u5c31\u4f1a\u5b58\u5728\u4f4d\u79fb\u63d0\u4ea4\u7684\u95ee\u9898\uff0c\u4ece\u800c\u5f15\u53d1\u6570\u636e\u4e22\u5931\u6216\u91cd\u590d\uff0c\u6240\u4ee5\u5bf9\u4f4d\u79fb\u7684\u63d0\u4ea4\u8981\u683c\u5916\u5904\u7406\uff0c\u6d88\u8d39\u8005\u9ed8\u8ba4\u662f\u5b9a\u65f6\u63d0\u4ea4\u4f4d\u79fb\u4fe1\u606f\u7684\uff0c\u5982\u679c\u9700\u8981\u624b\u52a8\u63d0\u4ea4\uff0c\u8981\u5148\u4fee\u6539\u914d\u7f6e\u53c2\u6570\u5173\u95ed\u81ea\u52a8\u63d0\u4ea4\uff0c\u518d\u901a\u8fc7\u4ee3\u7801\u91cc\u8c03\u7528commitSync()\u65b9\u6cd5\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-1157","post","type-post","status-publish","format-standard","hentry","category-kafka-hadoop"],"_links":{"self":[{"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/posts\/1157","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/comments?post=1157"}],"version-history":[{"count":1,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/posts\/1157\/revisions"}],"predecessor-version":[{"id":1340,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/posts\/1157\/revisions\/1340"}],"wp:attachment":[{"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/media?parent=1157"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/categories?post=1157"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/tags?post=1157"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}