基于cdh的Kafka配置及部署（詳細，成功運行）

一、下載

http://archive.cloudera.com/kafka/parcels/2.2.0/

wget http://archive.cloudera.com/kafka/parcels/2.2.0/KAFKA-2.2.0-1.2.2.0.p0.68-el6.parcel
wget http://archive.cloudera.com/kafka/parcels/2.2.0/KAFKA-2.2.0-1.2.2.0.p0.68-el6.parcel.sha1

二、校驗

[hadoop@hadoop003 softwares]$ sha1sum KAFKA-2.2.0-1.2.2.0.p0.68-el6.parcel
359509e028ae91a2a082adfad5f64596b63ea750  KAFKA-2.2.0-1.2.2.0.p0.68-el6.parcel

[hadoop@hadoop003 softwares]$ cat KAFKA-2.2.0-1.2.2.0.p0.68-el6.parcel.sha1
359509e028ae91a2a082adfad5f64596b63ea750

校驗碼相同，說明文件在下載過程中沒有任何損壞，可正常使用

三、解壓并設置軟連接

[hadoop@hadoop003 softwares]$ tar -zxf  KAFKA-2.2.0-1.2.2.0.p0.68-el6.parcel -C ~/app
[hadoop@hadoop003 app]$ ln -s /home/hadoop/app/KAFKA-2.2.0-1.2.2.0.p0.68/ /home/hadoop/app/kafka

四、重要目錄說明

[hadoop@hadoop003 kafka]$ pwd
/home/hadoop/app/kafka
[hadoop@hadoop003 kafka]$ ll
total 20
drwxr-xr-x 2 hadoop hadoop 4096 Jul  7  2017 bin
drwxr-xr-x 5 hadoop hadoop 4096 Jul  7  2017 etc
drwxr-xr-x 3 hadoop hadoop 4096 Jul  7  2017 lib
drwxr-xr-x 2 hadoop hadoop 4096 Jul  7  2017 meta
###     kafka配置文件目錄，我們修改配置文件就在這里修改
[hadoop@hadoop003 kafka]$ ll etc/kafka/conf.dist/
total 48
-rw-r--r-- 1 hadoop hadoop  906 Jul  7  2017 connect-console-sink.properties
-rw-r--r-- 1 hadoop hadoop  909 Jul  7  2017 connect-console-source.properties
-rw-r--r-- 1 hadoop hadoop 2760 Jul  7  2017 connect-distributed.properties
-rw-r--r-- 1 hadoop hadoop  883 Jul  7  2017 connect-file-sink.properties
-rw-r--r-- 1 hadoop hadoop  881 Jul  7  2017 connect-file-source.properties
-rw-r--r-- 1 hadoop hadoop 1074 Jul  7  2017 connect-log4j.properties
-rw-r--r-- 1 hadoop hadoop 2061 Jul  7  2017 connect-standalone.properties
-rw-r--r-- 1 hadoop hadoop 4369 Jul  7  2017 log4j.properties
-rw-r--r-- 1 hadoop hadoop 5679 Jun  1 01:24 server.properties
-rw-r--r-- 1 hadoop hadoop 1032 Jul  7  2017 tools-log4j.properties

###     kafka功能目錄
[hadoop@hadoop003 kafka]$ ll lib/kafka/
total 112
drwxr-xr-x 2 hadoop hadoop  4096 Jul  7  2017 bin
drwxr-xr-x 2 hadoop hadoop  4096 Jul  7  2017 cloudera
lrwxrwxrwx 1 hadoop hadoop    43 Jun  1 02:11 config -> /etc/kafka/conf  #注意這是紅色
-rw-rw-r-- 1 hadoop hadoop 48428 Jun  1 02:17 KAFKA-2.2.0-1.2.2.0.p0.68-el6.parcel
drwxr-xr-x 2 hadoop hadoop 12288 Jul  7  2017 libs
-rwxr-xr-x 1 hadoop hadoop 28824 Jul  7  2017 LICENSE
drwxrwxr-x 2 hadoop hadoop  4096 Jun  1 01:39 logs
-rwxr-xr-x 1 hadoop hadoop   336 Jul  7  2017 NOTICE
drwxr-xr-x 2 hadoop hadoop  4096 Jul  7  2017 site-docs
### config軟連接此時默認鏈接的getaway的配置文件，也就是CM客戶端的配置文件，因為我們沒有使用cm，所以也就沒有自動生成/etc/kafka/conf 故報錯閃爍紅色
###     bin目錄下是kafka的相關腳本，例如server啟動關閉&&consumer&&producer的啟動腳本

五、修改配置文件

# 第一步：
[hadoop@hadoop003 kafka] cd etc/kafka/conf.dist

# 第二步：

vim ?server.properties

# 第三步：(主要修改其中的6個參數)

broker.id=0 ?#標示符

log.dirs=/home/hadoop/app/kafka/logs ?#數據保存的位置

log.retention.hours=168 ?#數據的保留時間(168 hours=7天)

zookeeper.connect=hadoop001:2181,hadoop002:2181,hadoop003:2181/kafka
# zookeeper存儲kafka數據的位置
delete.topic.enable=true?#可以刪除已創建主題

六、啟動kafka

[hadoop@hadoop003 kafka]$ lib/kafka/bin/kafka-server-start.sh /home/hadoop/app/kafka/etc/kafka/conf.dist/server.properties 
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/home/hadoop/app/KAFKA-2.2.0-1.2.2.0.p0.68/lib/kafka/libs/slf4j-log4j12-1.7.21.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/home/hadoop/app/KAFKA-2.2.0-1.2.2.0.p0.68/lib/kafka/libs/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
log4j:ERROR Could not read configuration file from URL [file:lib/kafka/bin/../config/log4j.properties].
java.io.FileNotFoundException: lib/kafka/bin/../config/log4j.properties (No such file or directory)
    at java.io.FileInputStream.open0(Native Method)
    at java.io.FileInputStream.open(FileInputStream.java:195)
    at java.io.FileInputStream.<init>(FileInputStream.java:138)
    at java.io.FileInputStream.<init>(FileInputStream.java:93)
    at sun.net.www.protocol.file.FileURLConnection.connect(FileURLConnection.java:90)
    at sun.net.www.protocol.file.FileURLConnection.getInputStream(FileURLConnection.java:188)
    at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:557)
    at org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:526)
    at org.apache.log4j.LogManager.<clinit>(LogManager.java:127)
    at org.slf4j.impl.Log4jLoggerFactory.<init>(Log4jLoggerFactory.java:66)
    at org.slf4j.impl.StaticLoggerBinder.<init>(StaticLoggerBinder.java:72)
    at org.slf4j.impl.StaticLoggerBinder.<clinit>(StaticLoggerBinder.java:45)
    at org.slf4j.LoggerFactory.bind(LoggerFactory.java:150)
    at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:124)
    at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:412)
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:357)
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:383)
    at org.apache.kafka.common.utils.Utils.<clinit>(Utils.java:59)
    at kafka.Kafka$.getPropsFromArgs(Kafka.scala:41)
    at com.cloudera.kafka.wrap.Kafka$.main(Kafka.scala:72)
    at com.cloudera.kafka.wrap.Kafka.main(Kafka.scala)
log4j:ERROR Ignoring configuration file [file:lib/kafka/bin/../config/log4j.properties].
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
log4j:WARN No appenders could be found for logger (kafka.server.KafkaConfig).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.

出現了bug找不到配置文件

java.io.FileNotFoundException: lib/kafka/bin/../config/log4j.properties

由于 lrwxrwxrwx 1 hadoop hadoop 43 Jun 1 02:11 config -> /etc/kafka/conf 找不到，所以要指定成etc/kafka/conf.dist/

[hadoop@hadoop003 kafka]$ rm lib/kafka/config
[hadoop@hadoop003 kafka]$ ln -s  /home/hadoop/app/kafka/etc/kafka/conf.dist/ /home/hadoop/app/kafka/lib/kafka/config

重新啟動

[hadoop@hadoop003 kafka]$ nohup kafka-server-start.sh /home/hadoop/app/kafka/etc/kafka/conf.dist/server.properties > /home/hadoop/app/kafka/server-logs/kafka-server.log 2>&1 & 

沒有報錯信息了。。。