Flume连接oracle实时推送数据到kafka

版本号：

RedHat6.5   JDK1.8    flume-1.6.0   kafka_2.11-0.8.2.1

flume安装

RedHat6.5安装单机flume1.6：RedHat6.5安装单机flume1.6

kafka安装

RedHat6.5安装kafka集群 ： RedHat6.5安装kafka集群

1、下载flume-ng-sql-source-1.4.3.jar

CSDN下载地址：http://download.csdn.net/detail/chongxin1/9892184

flume-ng-sql-source-1.4.3.jar是flume用于连接数据库的重要支撑jar包。

2、把flume-ng-sql-source-1.4.3.jar放到flume的lib目录下

 

3、把oracle（此处用的是oracle库）的驱动包放到flume的lib目录下

oracle的jdbc驱动包，放在oracle安装目录下，路径为：D:\app\product\11.2.0\dbhome_1\jdbc\lib

如图：

把ojdbc5.jar放到flume的lib目录下，如图：

4、新建flume-sql.conf

在conf目录新建flume-sql.conf :

1. touch /usr/local/flume/apache-flume-1.6.0-bin/conf/flume-sql.conf
2. sudo gedit /usr/local/flume/apache-flume-1.6.0-bin/conf/flume-sql.conf

flume-sql.conf输入以下内容：

1. agentOne.channels = channelOne
2. agentOne.sources = sourceOne
3. agentOne.sinks = sinkOne
4. ###########sql source#################
5. # For each one of the sources, the type is defined
6. agentOne.sources.sourceOne.type = org.keedio.flume.source.SQLSource
7. agentOne.sources.sourceOne.hibernate.connection.url = jdbc:oracle:thin:@192.168.168.100:1521/orcl
8. # Hibernate Database connection properties
9. agentOne.sources.sourceOne.hibernate.connection.user = flume
10. agentOne.sources.sourceOne.hibernate.connection.password = 1234
11. agentOne.sources.sourceOne.hibernate.connection.autocommit = true
12. agentOne.sources.sourceOne.hibernate.dialect = org.hibernate.dialect.Oracle10gDialect
13. agentOne.sources.sourceOne.hibernate.connection.driver_class = oracle.jdbc.driver.OracleDriver
14. agentOne.sources.sourceOne.run.query.delay=10000
15. agentOne.sources.sourceOne.status.file.path = /tmp
16. agentOne.sources.sourceOne.status.file.name = sqlSource.status
17. # Custom query
18. agentOne.sources.sourceOne.start.from = 0
19. agentOne.sources.sourceOne.custom.query = select sysdate from dual
20. agentOne.sources.sourceOne.batch.size = 1000
21. agentOne.sources.sourceOne.max.rows = 1000
22. agentOne.sources.sourceOne.hibernate.connection.provider_class = org.hibernate.connection.C3P0ConnectionProvider
23. agentOne.sources.sourceOne.hibernate.c3p0.min_size=1
24. agentOne.sources.sourceOne.hibernate.c3p0.max_size=10
25. ##############################
26. agentOne.channels.channelOne.type = memory
27. agentOne.channels.channelOne.capacity = 10000
28. agentOne.channels.channelOne.transactionCapacity = 10000
29. agentOne.channels.channelOne.byteCapacityBufferPercentage = 20
30. agentOne.channels.channelOne.byteCapacity = 800000
31. agentOne.sinks.sinkOne.type = org.apache.flume.sink.kafka.KafkaSink
32. agentOne.sinks.sinkOne.topic = test
33. agentOne.sinks.sinkOne.brokerList = 192.168.168.200:9092
34. agentOne.sinks.sinkOne.requiredAcks = 1
35. agentOne.sinks.sinkOne.batchSize = 20
36. agentOne.sinks.sinkOne.channel = channelOne
37. agentOne.sinks.sinkOne.channel = channelOne
38. agentOne.sources.sourceOne.channels=channelOne

5、flume-ng启动flume-sql.conf和测试

1. cd /usr/local/flume/apache-flume-1.6.0-bin
2. bin/flume-ng agent --conf conf --conf-file conf/flume-sql.conf --name agentOne -Dflume.root.logger=INFO,console

运行成功日志如下：

1. 2017-07-08 00:12:55,393 (lifecycleSupervisor-1-1) [INFO - org.apache.flume.instrumentation.MonitoredCounterGroup.register(MonitoredCounterGroup.java:120)] Monitored counter group for type: SINK, name: sinkOne: Successfully registered new MBean.
2. 2017-07-08 00:12:55,394 (lifecycleSupervisor-1-1) [INFO - org.apache.flume.instrumentation.MonitoredCounterGroup.start(MonitoredCounterGroup.java:96)] Component type: SINK, name: sinkOne started
3. 2017-07-08 00:12:55,463 (SinkRunner-PollingRunner-DefaultSinkProcessor) [INFO - kafka.utils.Logging$class.info(Logging.scala:68)] Fetching metadata from broker id:0,host:localhost,port:9092 with correlation id 0 for 1 topic(s) Set(test)
4. 2017-07-08 00:12:55,528 (SinkRunner-PollingRunner-DefaultSinkProcessor) [INFO - kafka.utils.Logging$class.info(Logging.scala:68)] Connected to localhost:9092 for producing
5. 2017-07-08 00:12:55,551 (SinkRunner-PollingRunner-DefaultSinkProcessor) [INFO - kafka.utils.Logging$class.info(Logging.scala:68)] Disconnecting from localhost:9092
6. 2017-07-08 00:12:55,582 (SinkRunner-PollingRunner-DefaultSinkProcessor) [INFO - kafka.utils.Logging$class.info(Logging.scala:68)] Connected to slave2:9092 for producing

启动kafka的消费者，监听topic主题：

1. kafka-console-consumer.sh --zookeeper localhost:2181 --topic test

运行成功日志如下：

1. [root@master kafka_2.11-0.9.0.0]# kafka-console-consumer.sh --zookeeper localhost:2181 --topic test
2. "2017-07-08 00:28:53.0"
3. "2017-07-08 00:29:03.0"
4. "2017-07-08 00:29:13.0"
5. "2017-07-08 00:29:23.0"
6. "2017-07-08 00:29:33.0"
7. "2017-07-08 00:29:43.0"
8. "2017-07-08 00:29:53.0"
9. "2017-07-08 00:30:03.0"

 

6、常见报错解决办法

1. 2017-06-27 16:26:01,293 (C3P0PooledConnectionPoolManager[identityToken->1hgey889o1sjxqn51anc3fr|29938ba5]-AdminTaskTimer) [WARN - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector.run(ThreadPoolAsynchronousRunner.java:759)] com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@2d6227f3 -- APPARENT DEADLOCK!!! Complete Status:​

连接超时，造成死锁，仔细检查jdbc:oracle:thin:@192.168.168.100:1521/orcl，用户名/密码是否正确；

如果正确，还是连接不上，请检查oralce数据库是否开启了防火墙，如果是，添加入站规则或直接关闭防火墙。