{"id":3755,"date":"2024-01-04T17:52:31","date_gmt":"2024-01-04T09:52:31","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/index.php\/java\/kafka%e9%ab%98%e7%ba%a7%e5%ba%94%e7%94%a8%ef%bc%9a%e5%a6%82%e4%bd%95%e9%85%8d%e7%bd%ae%e5%a4%84%e7%90%86mq%e7%99%be%e4%b8%87%e7%ba%a7%e6%b6%88%e6%81%af%e9%98%9f%e5%88%97%ef%bc%9f\/"},"modified":"2024-01-10T14:39:06","modified_gmt":"2024-01-10T06:39:06","slug":"kafka%e9%ab%98%e7%ba%a7%e5%ba%94%e7%94%a8%ef%bc%9a%e5%a6%82%e4%bd%95%e9%85%8d%e7%bd%ae%e5%a4%84%e7%90%86mq%e7%99%be%e4%b8%87%e7%ba%a7%e6%b6%88%e6%81%af%e9%98%9f%e5%88%97%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/java\/kafka%e9%ab%98%e7%ba%a7%e5%ba%94%e7%94%a8%ef%bc%9a%e5%a6%82%e4%bd%95%e9%85%8d%e7%bd%ae%e5%a4%84%e7%90%86mq%e7%99%be%e4%b8%87%e7%ba%a7%e6%b6%88%e6%81%af%e9%98%9f%e5%88%97%ef%bc%9f\/","title":{"rendered":"Kafka\u9ad8\u7ea7\u5e94\u7528\uff1a\u5982\u4f55\u914d\u7f6e\u5904\u7406MQ\u767e\u4e07\u7ea7\u6d88\u606f\u961f\u5217\uff1f"},"content":{"rendered":"
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\u5927\u5bb6\u597d\uff0c\u6211\u662f\u9e4f\u78ca<\/span><\/strong><\/span><\/p>\n

\u5728\u5927\u6570\u636e\u65f6\u4ee3\uff0cApache Kafka\u4f5c\u4e3a\u4e00\u6b3e\u9ad8\u6027\u80fd\u7684\u5206\u5e03\u5f0f\u6d88\u606f\u961f\u5217\u7cfb\u7edf\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u6d41\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u5728Kafka\u73af\u5883\u4e2d\u5904\u7406\u767e\u4e07\u7ea7\u6d88\u606f\u961f\u5217\u7684\u9ad8\u7ea7\u5e94\u7528\u6280\u5de7\u3002<\/p>\n

\u672c\u6587\uff0c\u5df2\u6536\u5f55\u4e8e\uff0c\u6211\u7684\u6280\u672f\u7f51\u7ad9 ddkk.com\uff0c\u6709\u5927\u5382\u5b8c\u6574\u9762\u7ecf\uff0c\u5de5\u4f5c\u6280\u672f\uff0c\u67b6\u6784\u5e08\u6210\u957f\u4e4b\u8def\uff0c\u7b49\u7ecf\u9a8c\u5206\u4eab<\/p>\n

<\/span>1\u3001\u5408\u7406\u914d\u7f6e\u5206\u533a<\/strong><\/h2>\n
\/\/\u81ea\u5b9a\u4e49\u5206\u533a\u7b56\u7565publicclassCustomPartitionerimplementsPartitioner{@Overridepublicintpartition(Stringtopic,Objectkey,byte[]keyBytes,Objectvalue,byte[]valueBytes,Clustercluster){\/\/\u6839\u636ekey\u5206\u914d\u5206\u533aintpartitionCount=cluster.partitionCountForTopic(topic);return<\/span>(key.hashCode()&Integer.MAX_VALUE)%partitionCount;}\/\/\u5176\u4ed6\u5fc5\u8981\u7684\u65b9\u6cd5\u5b9e\u73b0...}<\/code><\/pre>\n
\u8fd9\u6bb5\u4ee3\u7801\u5c55\u793a\u4e86\u5982\u4f55\u521b\u5efa\u4e00\u4e2a\u81ea\u5b9a\u4e49\u5206\u533a\u5668\u3002\u5b83\u6839\u636e\u6d88\u606f\u952e\u503c\u7684\u54c8\u5e0c\u503c\u5c06\u6d88\u606f\u5206\u914d\u5230\u4e0d\u540c\u7684\u5206\u533a\uff0c\u6709\u52a9\u4e8e\u5747\u8861\u8d1f\u8f7d\u548c\u63d0\u9ad8\u5e76\u53d1\u5904\u7406\u80fd\u529b\u3002<\/p>\n
<\/span>2\u3001\u6d88\u606f\u6279\u91cf\u5904\u7406<\/strong><\/h2>\n
Propertiesprops=newProperties();props.put(\"bootstrap.servers\"<\/span>,\"kafka-server1:9092,kafka-server2:9092\"<\/span>);props.put(\"linger.ms\"<\/span>,10);\/\/\u6d88\u606f\u5ef6\u8fdf\u65f6\u95f4props.put(\"batch.size\"<\/span>,16384);\/\/\u6279\u91cf\u5927\u5c0f\/\/\u521b\u5efa\u751f\u4ea7\u8005\u5b9e\u4f8bKafkaProducer<String,String>producer=newKafkaProducer<>(props);<\/code><\/pre>\n
\u901a\u8fc7linger.ms<\/strong>\u548cbatch.size<\/strong>\u7684\u8bbe\u7f6e\uff0c\u751f\u4ea7\u8005\u53ef\u4ee5\u79ef\u7d2f\u4e00\u5b9a\u6570\u91cf\u7684\u6d88\u606f\u540e\u518d\u53d1\u9001\uff0c\u51cf\u5c11\u7f51\u7edc\u8bf7\u6c42\uff0c\u63d0\u9ad8\u541e\u5410\u91cf\u3002<\/p>\n
<\/span>3\u3001\u6d88\u606f\u538b\u7f29\u7b56\u7565<\/strong><\/h2>\n
props.put(\"compression.type\"<\/span>,\"snappy\"<\/span>);\/\/\u542f\u7528Snappy\u538b\u7f29\u7b97\u6cd5\/\/\u521b\u5efa\u751f\u4ea7\u8005\u5b9e\u4f8bKafkaProducer<String,String>producer=newKafkaProducer<>(props);<\/code><\/pre>\n
\u8fd9\u6bb5\u4ee3\u7801\u542f\u7528\u4e86Snappy\u538b\u7f29\u7b97\u6cd5\u3002\u6570\u636e\u538b\u7f29\u53ef\u4ee5\u663e\u8457\u51cf\u5c11\u6d88\u606f\u7684\u5927\u5c0f\uff0c\u63d0\u9ad8\u7f51\u7edc\u4f20\u8f93\u6548\u7387\u3002<\/p>\n
<\/span>4\u3001\u6d88\u8d39\u8005\u7fa4\u7ec4\u548c\u8d1f\u8f7d\u5747\u8861<\/strong><\/h2>\n
PropertiesconsumerProps=newProperties();consumerProps.put(\"bootstrap.servers\"<\/span>,\"kafka-server1:9092,kafka-server2:9092\"<\/span>);consumerProps.put(\"group.id\"<\/span>,\"consumer-group-1\"<\/span>);\/\/\u6d88\u8d39\u8005\u7fa4\u7ec4consumerProps.put(\"key.deserializer\"<\/span>,\"org.apache.kafka.common.serialization.StringDeserializer\"<\/span>);consumerProps.put(\"value.deserializer\"<\/span>,\"org.apache.kafka.common.serialization.StringDeserializer\"<\/span>);\/\/\u521b\u5efa\u6d88\u8d39\u8005\u5b9e\u4f8bKafkaConsumer<String,String>consumer=newKafkaConsumer<>(consumerProps);<\/code><\/pre>\n
\u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0c\u901a\u8fc7\u914d\u7f6e\u4e0d\u540c\u7684\u6d88\u8d39\u8005\u7fa4\u7ec4\uff08group.id<\/strong>\uff09\uff0c\u53ef\u4ee5\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u548c\u9ad8\u6548\u7684\u6d88\u606f\u6d88\u8d39\u3002<\/p>\n
<\/span>5\u3001Kafka\u6d41\u5904\u7406<\/strong><\/h2>\n
StreamsBuilderbuilder=newStreamsBuilder();KStream<String,String>kstream=builder.stream(\"source-topic\"<\/span>);kstream.mapValues(value->\"Processed:\"<\/span>+value).to(\"destination-topic\"<\/span>);\/\/\u521b\u5efa\u5e76\u542f\u52a8KafkaStreams\u5e94\u7528KafkaStreamsstreams=newKafkaStreams(builder.build(),props);streams.start();<\/code><\/pre>\n
\u8fd9\u6bb5\u4ee3\u7801\u4f7f\u7528Kafka Streams API\u5b9e\u73b0\u4e86\u7b80\u5355\u7684\u6d41\u5904\u7406\u3002\u8fd9\u5141\u8bb8\u5bf9\u6570\u636e\u6d41\u8fdb\u884c\u5b9e\u65f6\u5904\u7406\u548c\u5206\u6790\u3002<\/p>\n
<\/span>6\u3001\u5e42\u7b49\u6027\u751f\u4ea7\u8005\u914d\u7f6e<\/strong><\/h2>\n
Propertiesprops=newProperties();props.put(\"bootstrap.servers\"<\/span>,\"kafka-server1:9092,kafka-server2:9092\"<\/span>);props.put(\"key.serializer\"<\/span>,\"org.apache.kafka.common.serialization.StringSerializer\"<\/span>);props.put(\"value.serializer\"<\/span>,\"org.apache.kafka.common.serialization.StringSerializer\"<\/span>);props.put(\"enable.idempotence\"<\/span>,true<\/span>);\/\/\u542f\u7528\u5e42\u7b49\u6027\/\/\u521b\u5efa\u751f\u4ea7\u8005\u5b9e\u4f8bKafkaProducer<String,String>producer=newKafkaProducer<>(props);<\/code><\/pre>\n
\u901a\u8fc7\u8bbe\u7f6eenable.idempotence<\/strong>\u4e3atrue<\/strong>\uff0c\u53ef\u4ee5\u786e\u4fdd\u751f\u4ea7\u8005\u5373\u4f7f\u5728\u7f51\u7edc\u6ce2\u52a8\u7b49\u60c5\u51b5\u4e0b\u4e5f\u4e0d\u4f1a\u4ea7\u751f\u91cd\u590d\u6570\u636e\u3002<\/p>\n
<\/span>7\u3001\u6d88\u8d39\u8005\u504f\u79fb\u91cf\u7ba1\u7406<\/strong><\/h2>\n
consumerProps.put(\"enable.auto.commit\"<\/span>,false<\/span>);\/\/\u5173\u95ed\u81ea\u52a8\u63d0\u4ea4\u504f\u79fb\u91cfKafkaConsumer<String,String>consumer=newKafkaConsumer<>(consumerProps);\/\/\u5728\u5e94\u7528\u903b\u8f91\u4e2d\u624b\u52a8\u63d0\u4ea4\u504f\u79fb\u91cfwhile<\/span>(true<\/span>){ConsumerRecords<String,String>records=consumer.poll(Duration.ofMillis(100));for<\/span>(ConsumerRecord<String,String>record:records){\/\/\u5904\u7406\u6d88\u606f\/\/...\/\/\u624b\u52a8\u63d0\u4ea4\u504f\u79fb\u91cfconsumer.commitSync();}}<\/code><\/pre>\n
\u5173\u95ed\u81ea\u52a8\u63d0\u4ea4\u5e76\u624b\u52a8\u63a7\u5236\u504f\u79fb\u91cf\u7684\u63d0\u4ea4\uff0c\u53ef\u4ee5\u66f4\u7cbe\u786e\u5730\u63a7\u5236\u6d88\u606f\u7684\u6d88\u8d39\u72b6\u6001\uff0c\u907f\u514d\u6d88\u606f\u4e22\u5931\u6216\u91cd\u590d\u6d88\u8d39\u3002<\/p>\n
<\/span>8\u3001\u4f7f\u7528Kafka Connect\u96c6\u6210\u5916\u90e8\u7cfb\u7edf<\/strong><\/h2>\n
\/\/KafkaConnect\u914d\u7f6e\u793a\u4f8b\uff08\u901a\u5e38\u4e3aJSON\u683c\u5f0f\uff09{\"name\"<\/span>:\"my-connector\"<\/span>,\"config\"<\/span>:{\"connector.class\"<\/span>:\"io.confluent.connect.jdbc.JdbcSinkConnector\"<\/span>,\"tasks.max\"<\/span>:\"1\"<\/span>,\"topics\"<\/span>:\"my-topic\"<\/span>,\"connection.url\"<\/span>:\"jdbc:mysql:\/\/localhost:3306\/mydb\"<\/span>,\"key.converter\"<\/span>:\"org.apache.kafka.connect.json.JsonConverter\"<\/span>,\"value.converter\"<\/span>:\"org.apache.kafka.connect.json.JsonConverter\"<\/span>,\/\/\u66f4\u591a\u914d\u7f6e...}}<\/code><\/pre>\n
\u8fd9\u4e2a\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u914d\u7f6eKafka Connect\u6765\u8fde\u63a5\u5916\u90e8\u7cfb\u7edf\uff08\u5982\u6570\u636e\u5e93\uff09\u3002Kafka Connect\u662f\u4e00\u79cd\u6d41\u884c\u7684\u65b9\u5f0f\uff0c\u7528\u4e8e\u5728Kafka\u548c\u5176\u4ed6\u7cfb\u7edf\u4e4b\u95f4\u9ad8\u6548\u5730\u4f20\u8f93\u6570\u636e\u3002<\/p>\n
<\/span>9\u3001Kafka\u5b89\u5168\u914d\u7f6e<\/strong><\/h2>\n
props.put(\"security.protocol\"<\/span>,\"SSL\"<\/span>);props.put(\"ssl.truststore.location\"<\/span>,\"\/var\/private\/ssl\/kafka.client.truststore.jks\"<\/span>);props.put(\"ssl.truststore.password\"<\/span>,\"test1234\"<\/span>);props.put(\"ssl.keystore.location\"<\/span>,\"\/var\/private\/ssl\/kafka.client.keystore.jks\"<\/span>);props.put(\"ssl.keystore.password\"<\/span>,\"test1234\"<\/span>);props.put(\"ssl.key.password\"<\/span>,\"test1234\"<\/span>);\/\/\u521b\u5efa\u5b89\u5168\u7684\u751f\u4ea7\u8005\u6216\u6d88\u8d39\u8005\u5b9e\u4f8bKafkaProducer<String,String>producer=newKafkaProducer<>(props);<\/code><\/pre>\n
\u914d\u7f6eSSL\/TLS\u53ef\u4ee5\u4e3aKafka\u901a\u4fe1\u589e\u52a0\u52a0\u5bc6\u5c42\uff0c\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u5b89\u5168\u6027\u3002<\/p>\n
<\/span>10\u3001Kafka\u76d1\u63a7\u4e0e\u8fd0\u7ef4<\/strong><\/h2>\n
\/\/Kafka\u76d1\u63a7\u7684\u4f2a\u4ee3\u7801\u793a\u4f8bMonitormonitor=newKafkaMonitor(kafkaServers);monitor.on(\"event\"<\/span>,event->{if<\/span>(event.type==EventType.BROKER_DOWN){alert(\"Brokerdown:\"<\/span>+event.brokerId);}\/\/\u5176\u4ed6\u4e8b\u4ef6\u5904\u7406...});monitor.start();<\/code><\/pre>\n
\u867d\u7136\u8fd9\u662f\u4e00\u4e2a\u4f2a\u4ee3\u7801\u793a\u4f8b\uff0c\u4f46\u5b83\u5c55\u793a\u4e86\u5982\u4f55\u76d1\u63a7Kafka\u96c6\u7fa4\u7684\u5173\u952e\u4e8b\u4ef6\uff08\u5982Broker\u5b95\u673a\uff09\uff0c\u5e76\u6839\u636e\u9700\u8981\u91c7\u53d6\u76f8\u5e94\u7684\u54cd\u5e94\u63aa\u65bd\u3002\u5728\u5b9e\u9645\u751f\u4ea7\u73af\u5883\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5404\u79cd\u76d1\u63a7\u5de5\u5177\u548c\u670d\u52a1\u6765\u5b9e\u73b0\u7c7b\u4f3c\u7684\u529f\u80fd\u3002<\/p>\n
<\/span>\u672c\u6587\u603b\u7ed3<\/span><\/h3>\n
Kafka\u5728\u5904\u7406\u5927\u89c4\u6a21\u3001\u9ad8\u541e\u5410\u91cf\u7684\u6d88\u606f\u961f\u5217\u65b9\u9762\u6709\u7740\u7a81\u51fa\u7684\u6027\u80fd\u3002\u901a\u8fc7\u5408\u7406\u914d\u7f6e\u5206\u533a\u3001\u4f18\u5316\u6279\u91cf\u5904\u7406\u3001\u5e94\u7528\u6d88\u606f\u538b\u7f29\u3001\u8bbe\u7f6e\u6d88\u8d39\u8005\u7fa4\u7ec4\u548c\u5229\u7528\u6d41\u5904\u7406\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8Kafka\u5904\u7406\u767e\u4e07\u7ea7\u6d88\u606f\u961f\u5217\u7684\u80fd\u529b\u3002\u5f53\u7136\uff0c\u8fd9\u4e9b\u6280\u5de7\u7684\u5e94\u7528\u9700\u8981\u7ed3\u5408\u5177\u4f53\u7684\u4e1a\u52a1\u573a\u666f\u548c\u73af\u5883\u6765\u8c03\u6574\u548c\u4f18\u5316\u3002<\/p>\n
<\/span>\u6c42\u4e00\u952e\u4e09\u8fde\uff1a\u70b9\u8d5e\u3001\u5206\u4eab\u3001\u6536\u85cf<\/span><\/h3>\n
\u70b9\u8d5e\u5bf9\u6211\u771f\u7684\u975e\u5e38\u91cd\u8981\uff01\u5728\u7ebf\u6c42\u8d5e\uff0c\u52a0\u4e2a\u5173\u6ce8\u6211\u4f1a\u975e\u5e38\u611f\u6fc0\uff01<\/p>\n
\u672c\u6587\uff0c\u5df2\u6536\u5f55\u4e8e\uff0c\u6211\u7684\u6280\u672f\u7f51\u7ad9 ddkk.com\uff0c\u6709\u5927\u5382\u5b8c\u6574\u9762\u7ecf\uff0c\u5de5\u4f5c\u6280\u672f\uff0c\u67b6\u6784\u5e08\u6210\u957f\u4e4b\u8def\uff0c\u7b49\u7ecf\u9a8c\u5206\u4eab<\/p>\n<\/section>\n
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\u672c\u7bc7\u6587\u7ae0\u6765\u6e90\u4e8e\u5fae\u4fe1\u516c\u4f17\u53f7:                 \u7a0b\u5e8f\u5458\u9e4f\u78ca              <\/p>\n<\/blockquote>\n<\/div>\n","raw":"","protected":false},"excerpt":{"rendered":"
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