kafka console consumer

Import threadingFrom Kafka import KafkaconsumerThreads = []Class MyThread (threading. Thread):def __init__ (self, ThreadName, keyName):Threading. Thread.__init__ (self)Self.threadname=threadnameSelf.keyname=keynamedef run (self):Receiveinfo (Self.threadname, Self.keyname)def receiveinfo (ThreadName, KeyName):Consumer = kafkaconsumer (' Test ', bootstrap_servers= ' 192.168.1.10:9092 ')For MSG in consumer:If

In the use of Kafka high-level consumer, the use of multi-threaded consumption data times wrong, simple analysis of the reason for download , Consumeriterator will not be blocked when the message and set the internal state to failed, which throws an exception when other threads access it.Java code 650) this.width=650; "class=" star "src=" Http://woodding2008.iteye.com/images/icon_star.png "alt=" Favorites

Error phenomenon:Java client programming as the consumer of Kafka, connecting Kafka's broker error650) this.width=650; "Src=" https://s4.51cto.com/wyfs02/M00/91/6A/wKiom1j12BGgUkKgAACUSA5Q0tU565.png-wh_500x0-wm_ 3-wmp_4-s_64493172.png "title=" Qq20170418170758.png "alt=" Wkiom1j12bggukkgaacusa5q0tu565.png-wh_50 "/>Error reason analysis:When the server configuration or network environment is poor, there will

)); Stringdecoder Keydecoder = new Stringdecoder (new Verifiableproperties ());Stringdecoder Valuedecoder = new Stringdecoder (new Verifiableproperties ()); MapConsumer.createmessagestreams (Topiccountmap,keydecoder,valuedecoder);kafkastreamConsumeriterator int messagecount = 0;while (It.hasnext ()) {System.out.println (It.next (). message ());messagecount++;if (Messagecount = = 100) {SYSTEM.OUT.PRINTLN ("Consumer end of the total consumption of" + Me

, value=v) producer.flush ()exceptKafkaerror as E:Print(e)classKafka_consumer ():" ""Consumption module: Consumption of topic messages through different GroupID" " def __init__(self, kafkahost, Kafkaport, Kafkatopic, GroupID): Self.kafkahost=kafkahost Self.kafkaport=Kafkaport self.kafkatopic=kafkatopic self.groupid=GroupID Self.key=Key Self.consumer= Kafkaconsumer (self.kafkatopic, group_id =Self.groupid, Bootstrap_servers='{Kafka_host}:{kafka_port}'. Format (kafka_host=Self.kafkahost, Kafka_

The producers are as follows: public class KafkaProduce1 {public static void Main (string[] args) throws ioexception{ String topic= "test"; Properties prop = new properties (); Prop.load (KafkaProduce1.class.getClassLoader (). getResourceAsStream ("producer.properties")); producer The producer.properies configuration is as follows: # List of brokers used for bootstrapping knowledge about the rest of the cluster # FORMAT:HOST1:PORT1,HOST2:PORT2. . metad

Producer}public static void Main (string[] args) {New Kafkaproducer ("Test"). Start ();}}ConsumerImport Java.util.HashMap;Import java.util.List;Import Java.util.Map;Import java.util.Properties;Import Kafka.consumer.Consumer;Import Kafka.consumer.ConsumerConfig;Import Kafka.consumer.ConsumerIterator;Import Kafka.consumer.KafkaStream;Import Kafka.javaapi.consumer.ConsumerConnector;public class Kafkacomsumer extends Thread {Private String topic;Public Kafkacomsumer (String topic) {this.topic = top

Producer}public static void Main (string[] args) {New Kafkaproducer ("Test"). Start ();}}ConsumerImport Java.util.HashMap;Import java.util.List;Import Java.util.Map;Import java.util.Properties;Import Kafka.consumer.Consumer;Import Kafka.consumer.ConsumerConfig;Import Kafka.consumer.ConsumerIterator;Import Kafka.consumer.KafkaStream;Import Kafka.javaapi.consumer.ConsumerConnector;public class Kafkacomsumer extends Thread {Private String topic;Public Kafkacomsumer (String topic) {this.topic = top

Error process:650) this.width=650; "Src=" https://s1.51cto.com/wyfs02/M00/91/60/wKiom1j1sYHyYBNNAADoGsBpPEc665.png-wh_500x0-wm_ 3-wmp_4-s_1657427620.png "title=" Qq20170418142553.png "alt=" Wkiom1j1syhyybnnaadogsbppec665.png-wh_50 "/>Cause: Host name mapped IP error, resulting in no communication between nodesWorkaround: Configure IP and hostname mappings on each machineVi/etc/hosts650) this.width=650; "Src=" https://s2.51cto.com/wyfs02/M01/91/5F/wKioL1j1skjRcJXNAAAZuUAeA9Q879.png-wh_500x0-wm_ 3

Kafka himself didn't even have a web management interface.Here's a third-party:Https://github.com/claudemamo/kafka-web-consoleThe pit daddy is incredibly no detailed installation steps, only a few simple instructions for people unfamiliar with the development of Scala play, the egg hurts. The detailed installation process is documented below.Download the Install Scala build tool SBT First, the latest versio

Tags: Kafka kafka-web-console/*Navicat MySQL Data TransferSource server:206 Docker MySQL 13306Source Server version:50720Source host:192.168.7.206:13306Source Database:kafkamonitorTarget Server Type:mysqlTarget Server version:50720File encoding:65001Date:2018-05-05 18:32:21*/SET foreign_key_checks=0; --Table structure forgroups DROP TABLE IF EXISTS gr