kafka集群发送消息报错怎么办

这篇文章将为大家详细讲解有关kafka集群发送消息报错怎么办,小编觉得挺实用的,因此分享给大家做个参考,希望大家阅读完这篇文章后可以有所收获。

因为logstash采集的日志要发往kafka做一个队列机制,搭建完kafka集群后发送消息出现问题

ERROR fetching topic metadata for topics [Set(order)] from broker [ArrayBuffer(id:0,host:slave4,port:9092)] failed (kafka.utils.Utils$)
kafka.common.KafkaException: fetching topic metadata for topics [Set(order)] from broker [ArrayBuffer(id:0,host:slave4,port:9092)] failed
        at kafka.client.ClientUtils$.fetchTopicMetadata(ClientUtils.scala:67)
        at kafka.producer.BrokerPartitionInfo.updateInfo(BrokerPartitionInfo.scala:82)
        at kafka.producer.async.DefaultEventHandler$$anonfun$handle$2.apply$mcV$sp(DefaultEventHandler.scala:78)
        at kafka.utils.Utils$.swallow(Utils.scala:167)
        at kafka.utils.Logging$class.swallowError(Logging.scala:106)
        at kafka.utils.Utils$.swallowError(Utils.scala:46)
        at kafka.producer.async.DefaultEventHandler.handle(DefaultEventHandler.scala:78)
        at kafka.producer.async.ProducerSendThread.tryToHandle(ProducerSendThread.scala:104)
        at kafka.producer.async.ProducerSendThread$$anonfun$processEvents$3.apply(ProducerSendThread.scala:87)
        at kafka.producer.async.ProducerSendThread$$anonfun$processEvents$3.apply(ProducerSendThread.scala:67)
        at scala.collection.immutable.Stream.foreach(Stream.scala:547)
        at kafka.producer.async.ProducerSendThread.processEvents(ProducerSendThread.scala:66)
        at kafka.producer.async.ProducerSendThread.run(ProducerSendThread.scala:44)
Caused by: java.net.ConnectException: Connection refused
        at sun.nio.ch.Net.connect0(Native Method)
        at sun.nio.ch.Net.connect(Net.java:484)
        at sun.nio.ch.Net.connect(Net.java:476)
        at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:675)
        at kafka.network.BlockingChannel.connect(BlockingChannel.scala:57)
        at kafka.producer.SyncProducer.connect(SyncProducer.scala:141)
        at kafka.producer.SyncProducer.getOrMakeConnection(SyncProducer.scala:156)
        at kafka.producer.SyncProducer.kafka$producer$SyncProducer$$doSend(SyncProducer.scala:68)
        at kafka.producer.SyncProducer.send(SyncProducer.scala:112)
        at kafka.client.ClientUtils$.fetchTopicMetadata(ClientUtils.scala:53)
        … 12 more

ERROR Error in handling batch of 1 events (kafka.producer.async.ProducerSendThread)
kafka.common.FailedToSendMessageException: Failed to send messages after 3 tries.
        at kafka.producer.async.DefaultEventHandler.handle(DefaultEventHandler.scala:90)
        at kafka.producer.async.ProducerSendThread.tryToHandle(ProducerSendThread.scala:104)
        at kafka.producer.async.ProducerSendThread$$anonfun$processEvents$3.apply(ProducerSendThread.scala:87)
        at kafka.producer.async.ProducerSendThread$$anonfun$processEvents$3.apply(ProducerSendThread.scala:67)
        at scala.collection.immutable.Stream.foreach(Stream.scala:547)
        at kafka.producer.async.ProducerSendThread.processEvents(ProducerSendThread.scala:66)
        at kafka.producer.async.ProducerSendThread.run(ProducerSendThread.scala:44)

因为看到 Caused by: java.net.ConnectException: Connection refused ,所以查看 selinux

vim /etc/selinux/config

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing – SELinux security policy is enforced.
#     permissive – SELinux prints warnings instead of enforcing.
#     disabled – No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of these two values:
#     targeted – Targeted processes are protected,
#     mls – Multi Level Security protection.
SELINUXTYPE=targeted

强制关闭 selinux

setenforce 0

发送消息还是报一样的错

查看zookeeper

[zk: master:2181(CONNECTED) 18] get /brokers/ids/0
{“jmx_port”:-1,”timestamp”:”1465262832441″,”host”:”localhost”,”version”:1,”port”:9092}
cZxid = 0x70000005e
ctime = Tue Jun 07 09:27:12 CST 2016
mZxid = 0x70000005e
mtime = Tue Jun 07 09:27:12 CST 2016
pZxid = 0x70000005e
cversion = 0
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x255213e787e0002
dataLength = 86
numChildren = 0

host是localhost,而我的kafka集群是slave4、5上,zk在master,slave2、3上,所以分别修改 slave4、5  上的server.properties的 host.name=slave4, host.name=slave5

重新启动kafka,查看zk

[zk: master:2181(CONNECTED) 27] get /brokers/ids/0
{“jmx_port”:-1,”timestamp”:”1465266328389″,”host”:”slave4″,”version”:1,”port”:9092}
cZxid = 0x70000008a
ctime = Tue Jun 07 10:25:27 CST 2016
mZxid = 0x70000008a
mtime = Tue Jun 07 10:25:27 CST 2016
pZxid = 0x70000008a
cversion = 0
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x355213e7be80003
dataLength = 83
numChildren = 0

0上的host变成了slave4

在发送消息成功,接收消息成功

关于“kafka集群发送消息报错怎么办”这篇文章就分享到这里了,希望以上内容可以对大家有一定的帮助,使各位可以学到更多知识,如果觉得文章不错,请把它分享出去让更多的人看到。


【AD】美国洛杉矶/香港/日本VPS推荐,回程电信CN2 GIA线路,延迟低、稳定性高、免费备份_搬瓦工

【AD】炭云:36元/年/1GB内存/20GB SSD空间/500GB流量/5Gbps端口/KVM/香港/国际线路LUMEN