分布式发布订阅消息系统kafka入门-1.介绍+安装

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Apache Kafka是一种高吞吐量的分布式发布订阅消息系统，它可以处理消费者规模的网站中的所有动作流数据。 这种动作（网页浏览，搜索和其他用户的行动）是在现代网络上的许多社会功能的一个关键因素。 这些数据通常是由于吞吐量的要求而通过处理日志和日志聚合来解决。 对于像Hadoop的一样的日志数据和离线分析系统，但又要求实时处理的限制，这是一个可行的解决方案。Kafka的目的是通过Hadoop的并行加载机制来统一线上和离线的消息处理，也是为了通过集群来提供实时的消费。文章源自很文博客https://www.hinwi.com/很文博客-https://www.hinwi.com/11175.html

1.Kafka资料

  • github(https://github.com/apache/kafka)
  • .org官方文档(http://kafka.apache.org/)
  • 最新release 0.11.0.0(https://github.com/apache/kafka/releases)

文章源自很文博客https://www.hinwi.com/很文博客-https://www.hinwi.com/11175.html

 文章源自很文博客https://www.hinwi.com/很文博客-https://www.hinwi.com/11175.html

2.安装

Step 1: 下载

下载(https://www.apache.org/dyn/closer.cgi?path=/kafka/0.11.0.0/kafka_2.11-0.11.0.0.tgz) 0.11.0.0 release版本到自己喜欢的目录并且解压.下载慢的可以试试百度云(http://pan.baidu.com/s/1nvuosdj)。文章源自很文博客https://www.hinwi.com/很文博客-https://www.hinwi.com/11175.html

  1. > tar -xzf kafka_2.11-0.11.0.0.tgz
  2. > cd kafka_2.11-0.11.0.0

STEP 2:启动服务

1.先启动一个ZooKeeper服务器

Kafka需要和ZooKeeper配套使用，所以需要先启动一个ZooKeeper服务器，如果还没有安装。 可以使用和kafka一起打包的便捷脚本来获取一个快速而又脏的单节点ZooKeeper实例：文章源自很文博客https://www.hinwi.com/很文博客-https://www.hinwi.com/11175.html

  1. > bin/zookeeper-server-start.sh config/zookeeper.properties
  3. ZooKeeper JMX enabled by default
  4. Using config: /usr/local/zookeeper-3.4.9/bin/../conf/zoo.cfg
  5. Starting zookeeper ... STARTED

或者启动自己安装zookeeper文章源自很文博客https://www.hinwi.com/很文博客-https://www.hinwi.com/11175.html

2. 启动kafka

在包目录下使用下面的命令启动kafka:

  1. > bin/kafka-server-start.sh config/server.properties
  3. [2017-08-08 14:49:00,838] INFO KafkaConfig values:
  4. advertised.host.name = null
  5. advertised.listeners = null
  6. advertised.port = null
  7. alter.config.policy.class.name = null
  8. authorizer.class.name =
  9. auto.create.topics.enable = true
  10. auto.leader.rebalance.enable = true
  11. background.threads = 10
  12. broker.id = 0
  13. broker.id.generation.enable = true
  14. broker.rack = null
  15. compression.type = producer
  16. connections.max.idle.ms = 600000
  17. controlled.shutdown.enable = true
  18. controlled.shutdown.max.retries = 3
  19. controlled.shutdown.retry.backoff.ms = 5000
  20. controller.socket.timeout.ms = 30000
  21. create.topic.policy.class.name = null
  22. default.replication.factor = 1
  23. delete.records.purgatory.purge.interval.requests = 1
  24. delete.topic.enable = false
  25. fetch.purgatory.purge.interval.requests = 1000
  26. group.initial.rebalance.delay.ms = 0
  27. group.max.session.timeout.ms = 300000
  28. group.min.session.timeout.ms = 6000
  29. host.name =
  30. inter.broker.listener.name = null
  31. inter.broker.protocol.version = 0.11.0-IV2
  32. leader.imbalance.check.interval.seconds = 300
  33. leader.imbalance.per.broker.percentage = 10
  34. listener.security.protocol.map = SSL:SSL,SASL_PLAINTEXT:SASL_PLAINTEXT,TRACE:TRACE,SASL_SSL:SASL_SSL,PLAINTEXT:PLAINTEXT
  35. listeners = null
  36. log.cleaner.backoff.ms = 15000
  37. log.cleaner.dedupe.buffer.size = 134217728
  38. log.cleaner.delete.retention.ms = 86400000
  39. log.cleaner.enable = true
  40. log.cleaner.io.buffer.load.factor = 0.9
  41. log.cleaner.io.buffer.size = 524288
  42. log.cleaner.io.max.bytes.per.second = 1.7976931348623157E308
  43. log.cleaner.min.cleanable.ratio = 0.5
  44. log.cleaner.min.compaction.lag.ms = 0
  45. log.cleaner.threads = 1
  46. log.cleanup.policy = [delete]
  47. log.dir = /tmp/kafka-logs
  48. log.dirs = /tmp/kafka-logs
  49. log.flush.interval.messages = 9223372036854775807
  50. log.flush.interval.ms = null
  51. log.flush.offset.checkpoint.interval.ms = 60000
  52. log.flush.scheduler.interval.ms = 9223372036854775807
  53. log.flush.start.offset.checkpoint.interval.ms = 60000
  54. log.index.interval.bytes = 4096
  55. log.index.size.max.bytes = 10485760
  56. log.message.format.version = 0.11.0-IV2
  57. log.message.timestamp.difference.max.ms = 9223372036854775807
  58. log.message.timestamp.type = CreateTime
  59. log.preallocate = false
  60. log.retention.bytes = -1
  61. log.retention.check.interval.ms = 300000
  62. log.retention.hours = 168
  63. log.retention.minutes = null
  64. log.retention.ms = null
  65. log.roll.hours = 168
  66. log.roll.jitter.hours = 0
  67. log.roll.jitter.ms = null
  68. log.roll.ms = null
  69. log.segment.bytes = 1073741824
  70. log.segment.delete.delay.ms = 60000
  71. max.connections.per.ip = 2147483647
  72. max.connections.per.ip.overrides =
  73. message.max.bytes = 1000012
  74. metric.reporters = []
  75. metrics.num.samples = 2
  76. metrics.recording.level = INFO
  77. metrics.sample.window.ms = 30000
  78. min.insync.replicas = 1
  79. num.io.threads = 8
  80. num.network.threads = 3
  81. num.partitions = 1
  82. num.recovery.threads.per.data.dir = 1
  83. num.replica.fetchers = 1
  84. offset.metadata.max.bytes = 4096
  85. offsets.commit.required.acks = -1
  86. offsets.commit.timeout.ms = 5000
  87. offsets.load.buffer.size = 5242880
  88. offsets.retention.check.interval.ms = 600000
  89. offsets.retention.minutes = 1440
  90. offsets.topic.compression.codec = 0
  91. offsets.topic.num.partitions = 50
  92. offsets.topic.replication.factor = 1
  93. offsets.topic.segment.bytes = 104857600
  94. port = 9092
  95. principal.builder.class = class org.apache.kafka.common.security.auth.DefaultPrincipalBuilder
  96. producer.purgatory.purge.interval.requests = 1000
  97. queued.max.requests = 500
  98. quota.consumer.default = 9223372036854775807
  99. quota.producer.default = 9223372036854775807
  100. quota.window.num = 11
  101. quota.window.size.seconds = 1
  102. replica.fetch.backoff.ms = 1000
  103. replica.fetch.max.bytes = 1048576
  104. replica.fetch.min.bytes = 1
  105. replica.fetch.response.max.bytes = 10485760
  106. replica.fetch.wait.max.ms = 500
  107. replica.high.watermark.checkpoint.interval.ms = 5000
  108. replica.lag.time.max.ms = 10000
  109. replica.socket.receive.buffer.bytes = 65536
  110. replica.socket.timeout.ms = 30000
  111. replication.quota.window.num = 11
  112. replication.quota.window.size.seconds = 1
  113. request.timeout.ms = 30000
  114. reserved.broker.max.id = 1000
  115. sasl.enabled.mechanisms = [GSSAPI]
  116. sasl.kerberos.kinit.cmd = /usr/bin/kinit
  117. sasl.kerberos.min.time.before.relogin = 60000
  118. sasl.kerberos.principal.to.local.rules = [DEFAULT]
  119. sasl.kerberos.service.name = null
  120. sasl.kerberos.ticket.renew.jitter = 0.05
  121. sasl.kerberos.ticket.renew.window.factor = 0.8
  122. sasl.mechanism.inter.broker.protocol = GSSAPI
  123. security.inter.broker.protocol = PLAINTEXT
  124. socket.receive.buffer.bytes = 102400
  125. socket.request.max.bytes = 104857600
  126. socket.send.buffer.bytes = 102400
  127. ssl.cipher.suites = null
  128. ssl.client.auth = none
  129. ssl.enabled.protocols = [TLSv1.2, TLSv1.1, TLSv1]
  130. ssl.endpoint.identification.algorithm = null
  131. ssl.key.password = null
  132. ssl.keymanager.algorithm = SunX509
  133. ssl.keystore.location = null
  134. ssl.keystore.password = null
  135. ssl.keystore.type = JKS
  136. ssl.protocol = TLS
  137. ssl.provider = null
  138. ssl.secure.random.implementation = null
  139. ssl.trustmanager.algorithm = PKIX
  140. ssl.truststore.location = null
  141. ssl.truststore.password = null
  142. ssl.truststore.type = JKS
  143. transaction.abort.timed.out.transaction.cleanup.interval.ms = 60000
  144. transaction.max.timeout.ms = 900000
  145. transaction.remove.expired.transaction.cleanup.interval.ms = 3600000
  146. transaction.state.log.load.buffer.size = 5242880
  147. transaction.state.log.min.isr = 1
  148. transaction.state.log.num.partitions = 50
  149. transaction.state.log.replication.factor = 1
  150. transaction.state.log.segment.bytes = 104857600
  151. transactional.id.expiration.ms = 604800000
  152. unclean.leader.election.enable = false
  153. zookeeper.connect = localhost:2181
  154. zookeeper.connection.timeout.ms = 6000
  155. zookeeper.session.timeout.ms = 6000
  156. zookeeper.set.acl = false
  157. zookeeper.sync.time.ms = 2000
  158. (kafka.server.KafkaConfig)
  159. [2017-08-08 14:49:00,936] INFO starting (kafka.server.KafkaServer)
  160. [2017-08-08 14:49:00,940] INFO Connecting to zookeeper on localhost:2181 (kafka.server.KafkaServer)
  161. [2017-08-08 14:49:00,962] INFO Starting ZkClient event thread. (org.I0Itec.zkclient.ZkEventThread)
  162. [2017-08-08 14:49:00,980] INFO Client environment:zookeeper.version=3.4.10-39d3a4f269333c922ed3db283be479f9deacaa0f, built on 03/23/2017 10:13 GMT (org.apache.zookeeper.ZooKeeper)
  163. [2017-08-08 14:49:00,980] INFO Client environment:host.name=watercubedembp.lan (org.apache.zookeeper.ZooKeeper)
  164. [2017-08-08 14:49:00,980] INFO Client environment:java.version=1.8.0_60 (org.apache.zookeeper.ZooKeeper)
  165. [2017-08-08 14:49:00,980] INFO Client environment:java.vendor=Oracle Corporation (org.apache.zookeeper.ZooKeeper)
  166. [2017-08-08 14:49:00,980] INFO Client environment:java.home=/Library/Java/JavaVirtualMachines/jdk1.8.0_60.jdk/Contents/Home/jre (org.apache.zookeeper.ZooKeeper)
  167. [2017-08-08 14:49:00,980] INFO Client environment:java.class.path=:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/aopalliance-repackaged-2.5.0-b05.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/argparse4j-0.7.0.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/commons-lang3-3.5.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/connect-api-0.11.0.0.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/connect-file-0.11.0.0.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/connect-json-0.11.0.0.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/connect-runtime-0.11.0.0.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/connect-transforms-0.11.0.0.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/guava-20.0.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/hk2-api-2.5.0-b05.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/hk2-locator-2.5.0-b05.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/hk2-utils-2.5.0-b05.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jackson-annotations-2.8.5.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jackson-core-2.8.5.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jackson-databind-2.8.5.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jackson-jaxrs-base-2.8.5.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jackson-jaxrs-json-provider-2.8.5.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jackson-module-jaxb-annotations-2.8.5.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/javassist-3.21.0-GA.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/javax.annotation-api-1.2.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/javax.inject-1.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/javax.inject-2.5.0-b05.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/javax.servlet-api-3.1.0.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/javax.ws.rs-api-2.0.1.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jersey-client-2.24.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jersey-common-2.24.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jersey-container-servlet-2.24.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jersey-container-servlet-core-2.24.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jersey-guava-2.24.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jersey-media-jaxb-2.24.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jersey-server-2.24.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jetty-continuation-9.2.15.v20160210.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jetty-http-9.2.15.v20160210.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jetty-io-9.2.15.v20160210.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jetty-security-9.2.15.v20160210.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jetty-server-9.2.15.v20160210.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jetty-servlet-9.2.15.v20160210.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jetty-servlets-9.2.15.v20160210.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jetty-util-9.2.15.v20160210.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/jopt-simple-5.0.3.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/kafka-clients-0.11.0.0.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/kafka-log4j-appender-0.11.0.0.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/kafka-streams-0.11.0.0.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/kafka-streams-examples-0.11.0.0.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/kafka-tools-0.11.0.0.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/kafka_2.11-0.11.0.0-sources.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/kafka_2.11-0.11.0.0-test-sources.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/kafka_2.11-0.11.0.0.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/log4j-1.2.17.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/lz4-1.3.0.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/maven-artifact-3.5.0.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/metrics-core-2.2.0.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/osgi-resource-locator-1.0.1.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/plexus-utils-3.0.24.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/reflections-0.9.11.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/rocksdbjni-5.0.1.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/scala-library-2.11.11.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/scala-parser-combinators_2.11-1.0.4.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/slf4j-api-1.7.25.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/slf4j-log4j12-1.7.25.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/snappy-java-1.1.2.6.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/validation-api-1.1.0.Final.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/zkclient-0.10.jar:/usr/local/kafka_2.11-0.11.0.0/bin/../libs/zookeeper-3.4.10.jar (org.apache.zookeeper.ZooKeeper)
  168. [2017-08-08 14:49:00,981] INFO Client environment:java.library.path=/Users/watercube/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:. (org.apache.zookeeper.ZooKeeper)
  169. [2017-08-08 14:49:00,981] INFO Client environment:java.io.tmpdir=/var/folders/41/x0c6_wcs6813gw9qt_jhqmf40000gn/T/ (org.apache.zookeeper.ZooKeeper)
  170. [2017-08-08 14:49:00,981] INFO Client environment:java.compiler=<NA> (org.apache.zookeeper.ZooKeeper)
  171. [2017-08-08 14:49:00,982] INFO Client environment:os.name=Mac OS X (org.apache.zookeeper.ZooKeeper)
  172. [2017-08-08 14:49:00,982] INFO Client environment:os.arch=x86_64 (org.apache.zookeeper.ZooKeeper)
  173. [2017-08-08 14:49:00,982] INFO Client environment:os.version=10.12.5 (org.apache.zookeeper.ZooKeeper)
  174. [2017-08-08 14:49:00,982] INFO Client environment:user.name=watercube (org.apache.zookeeper.ZooKeeper)
  175. [2017-08-08 14:49:00,982] INFO Client environment:user.home=/Users/watercube (org.apache.zookeeper.ZooKeeper)
  176. [2017-08-08 14:49:00,982] INFO Client environment:user.dir=/usr/local/kafka_2.11-0.11.0.0 (org.apache.zookeeper.ZooKeeper)
  177. [2017-08-08 14:49:00,983] INFO Initiating client connection, connectString=localhost:2181 sessionTimeout=6000 watcher=org.I0Itec.zkclient.ZkClient@3911c2a7 (org.apache.zookeeper.ZooKeeper)
  178. [2017-08-08 14:49:01,009] INFO Waiting for keeper state SyncConnected (org.I0Itec.zkclient.ZkClient)
  179. [2017-08-08 14:49:01,013] INFO Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error) (org.apache.zookeeper.ClientCnxn)
  180. [2017-08-08 14:49:01,129] INFO Socket connection established to localhost/127.0.0.1:2181, initiating session (org.apache.zookeeper.ClientCnxn)
  181. [2017-08-08 14:49:01,212] INFO Session establishment complete on server localhost/127.0.0.1:2181, sessionid = 0x15dc097dc680000, negotiated timeout = 6000 (org.apache.zookeeper.ClientCnxn)
  182. [2017-08-08 14:49:01,215] INFO zookeeper state changed (SyncConnected) (org.I0Itec.zkclient.ZkClient)
  183. [2017-08-08 14:49:01,349] INFO Cluster ID = qV4RDpIbREegszqq6RAFcw (kafka.server.KafkaServer)
  184. [2017-08-08 14:49:01,354] WARN No meta.properties file under dir /tmp/kafka-logs/meta.properties (kafka.server.BrokerMetadataCheckpoint)
  185. [2017-08-08 14:49:01,394] INFO [ThrottledRequestReaper-Fetch]: Starting (kafka.server.ClientQuotaManager$ThrottledRequestReaper)
  186. [2017-08-08 14:49:01,394] INFO [ThrottledRequestReaper-Produce]: Starting (kafka.server.ClientQuotaManager$ThrottledRequestReaper)
  187. [2017-08-08 14:49:01,451] INFO [ThrottledRequestReaper-Request]: Starting (kafka.server.ClientQuotaManager$ThrottledRequestReaper)
  188. [2017-08-08 14:49:01,511] INFO Log directory '/tmp/kafka-logs' not found, creating it. (kafka.log.LogManager)
  189. [2017-08-08 14:49:01,534] INFO Loading logs. (kafka.log.LogManager)
  190. [2017-08-08 14:49:01,549] INFO Logs loading complete in 15 ms. (kafka.log.LogManager)
  191. [2017-08-08 14:49:01,726] INFO Starting log cleanup with a period of 300000 ms. (kafka.log.LogManager)
  192. [2017-08-08 14:49:01,728] INFO Starting log flusher with a default period of 9223372036854775807 ms. (kafka.log.LogManager)
  193. [2017-08-08 14:49:01,793] INFO Awaiting socket connections on 0.0.0.0:9092. (kafka.network.Acceptor)
  194. [2017-08-08 14:49:01,798] INFO [Socket Server on Broker 0], Started 1 acceptor threads (kafka.network.SocketServer)
  195. [2017-08-08 14:49:01,819] INFO [ExpirationReaper-0-Produce]: Starting (kafka.server.DelayedOperationPurgatory$ExpiredOperationReaper)
  196. [2017-08-08 14:49:01,820] INFO [ExpirationReaper-0-Fetch]: Starting (kafka.server.DelayedOperationPurgatory$ExpiredOperationReaper)
  197. [2017-08-08 14:49:01,821] INFO [ExpirationReaper-0-DeleteRecords]: Starting (kafka.server.DelayedOperationPurgatory$ExpiredOperationReaper)
  198. [2017-08-08 14:49:01,895] INFO [ExpirationReaper-0-topic]: Starting (kafka.server.DelayedOperationPurgatory$ExpiredOperationReaper)
  199. [2017-08-08 14:49:01,902] INFO [ExpirationReaper-0-Heartbeat]: Starting (kafka.server.DelayedOperationPurgatory$ExpiredOperationReaper)
  200. [2017-08-08 14:49:01,905] INFO [ExpirationReaper-0-Rebalance]: Starting (kafka.server.DelayedOperationPurgatory$ExpiredOperationReaper)
  201. [2017-08-08 14:49:01,905] INFO Creating /controller (is it secure? false) (kafka.utils.ZKCheckedEphemeral)
  202. [2017-08-08 14:49:01,916] INFO Result of znode creation is: OK (kafka.utils.ZKCheckedEphemeral)
  203. [2017-08-08 14:49:01,929] INFO [GroupCoordinator 0]: Starting up. (kafka.coordinator.group.GroupCoordinator)
  204. [2017-08-08 14:49:01,930] INFO [GroupCoordinator 0]: Startup complete. (kafka.coordinator.group.GroupCoordinator)
  205. [2017-08-08 14:49:01,941] INFO [Group Metadata Manager on Broker 0]: Removed 0 expired offsets in 10 milliseconds. (kafka.coordinator.group.GroupMetadataManager)
  206. [2017-08-08 14:49:01,988] INFO [ProducerId Manager 0]: Acquired new producerId block (brokerId:0,blockStartProducerId:0,blockEndProducerId:999) by writing to Zk with path version 1 (kafka.coordinator.transaction.ProducerIdManager)
  207. [2017-08-08 14:49:02,043] INFO [Transaction Coordinator 0]: Starting up. (kafka.coordinator.transaction.TransactionCoordinator)
  208. [2017-08-08 14:49:02,050] INFO [Transaction Coordinator 0]: Startup complete. (kafka.coordinator.transaction.TransactionCoordinator)
  209. [2017-08-08 14:49:02,052] INFO [Transaction Marker Channel Manager 0]: Starting (kafka.coordinator.transaction.TransactionMarkerChannelManager)
  210. [2017-08-08 14:49:02,147] INFO Will not load MX4J, mx4j-tools.jar is not in the classpath (kafka.utils.Mx4jLoader$)
  211. [2017-08-08 14:49:02,232] INFO Creating /brokers/ids/0 (is it secure? false) (kafka.utils.ZKCheckedEphemeral)
  212. [2017-08-08 14:49:02,237] INFO Result of znode creation is: OK (kafka.utils.ZKCheckedEphemeral)
  213. [2017-08-08 14:49:02,239] INFO Registered broker 0 at path /brokers/ids/0 with addresses: EndPoint(watercubedembp.lan,9092,ListenerName(PLAINTEXT),PLAINTEXT) (kafka.utils.ZkUtils)
  214. [2017-08-08 14:49:02,240] WARN No meta.properties file under dir /tmp/kafka-logs/meta.properties (kafka.server.BrokerMetadataCheckpoint)
  215. [2017-08-08 14:49:02,277] INFO Kafka version : 0.11.0.0 (org.apache.kafka.common.utils.AppInfoParser)
  216. [2017-08-08 14:49:02,277] INFO Kafka commitId : cb8625948210849f (org.apache.kafka.common.utils.AppInfoParser)
  217. [2017-08-08 14:49:02,279] INFO [Kafka Server 0], started (kafka.server.KafkaServer)

STEP 3:创建一个TOPIC

在一个分区下创建一个topic—“test”

  1. > bin/kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 1 --partitions 1 --topic test
  3. Created topic "test".

我们可以使用list命令来查看这个topic：

  1. > bin/kafka-topics.sh --list --zookeeper localhost:2181
  3. test

除了手动创建topic，也可以将broker配置为当发布的主题不存在时自动创建主题。

STEP 4: 发送消息

Kafka附带一个命令行客户端，它将从文件或标准输入中输入，并将其作为消息发送到Kafka群集。 默认情况下，每行将作为单独的消息发送。
运行生产者，然后在控制台中输入一些消息以发送到服务器。

  1. > bin/kafka-console-producer.sh --broker-list localhost:9092 --topic test
  3. This is a message
  4. This is another message

STEP 5: 启动消费者

Kafka还有一个命令行消费者，将接收到的消息转储到标准输出。

  1. > bin/kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic test --from-beginning
  3. This is a message
  4. This is another message

分布式发布订阅消息系统kafka入门-1.介绍+安装

收发信息

注，正常情况下，服务器，生产者，消费者分别占用一个terminal,简单的安装和测试到这里。

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