flume案例--监控文件夹采集数据

最新推荐文章于 2024-04-22 15:22:55 发布

青眼酷白龙

最新推荐文章于 2024-04-22 15:22:55 发布

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分类专栏： flume 文章标签： flume

本文链接：https://blog.youkuaiyun.com/qq_36382679/article/details/106975585

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6 篇文章

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本文详细介绍了如何使用Flume进行日志采集，包括配置spool-hdfs.conf文件的具体参数，启动Flume代理的过程，以及创建监控目录和测试日志采集的方法。通过实例展示了从配置到测试的完整流程。

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1 配置spool-hdfs.conf文件

# Name the components on this agent
a1.sources = r1
a1.sinks = k1
a1.channels = c1

# Describe/configure the source
##注意：不能往监控目中重复丢同名文件
a1.sources.r1.type = spooldir
a1.sources.r1.spoolDir = /root/logs2
a1.sources.r1.fileHeader = true

# Describe the sink
a1.sinks.k1.type = hdfs
a1.sinks.k1.channel = c1
a1.sinks.k1.hdfs.path = /flume/events/%y-%m-%d/%H%M/
a1.sinks.k1.hdfs.filePrefix = allen-
a1.sinks.k1.hdfs.round = true
a1.sinks.k1.hdfs.roundValue = 10
a1.sinks.k1.hdfs.roundUnit = minute
a1.sinks.k1.hdfs.rollInterval = 3
a1.sinks.k1.hdfs.rollSize = 20
a1.sinks.k1.hdfs.rollCount = 5
a1.sinks.k1.hdfs.batchSize = 1
a1.sinks.k1.hdfs.useLocalTimeStamp = true
#生成的文件类型，默认是Sequencefile，可用DataStream，则为普通文本
a1.sinks.k1.hdfs.fileType = DataStream

# Use a channel which buffers events in memory
a1.channels.c1.type = memory
a1.channels.c1.capacity = 1000
a1.channels.c1.transactionCapacity = 100

# Bind the source and sink to the channel
a1.sources.r1.channels = c1
a1.sinks.k1.channel = c1

2 启动flume

bin/flume-ng agent -c ./conf -f ./conf/spool-hdfs.conf -n a1 -Dflume.root.logger=INFO,console

3 创建监控目录/root/logs2

mkdir -p /root/logs2

4 向监控目录移动文件

cp world.txt /root/logs2/

5 测试

2020-06-23 04:24:23,250 (pool-5-thread-1) [INFO - org.apache.flume.client.avro.ReliableSpoolingFileEventReader.readEvents(ReliableSpoolingFileEventReader.java:324)] Last read took us just up to a file boundary. Rolling to the next file, if there is one.
2020-06-23 04:24:23,251 (pool-5-thread-1) [INFO - org.apache.flume.client.avro.ReliableSpoolingFileEventReader.rollCurrentFile(ReliableSpoolingFileEventReader.java:433)] Preparing to move file /root/logs2/world.txt to /root/logs2/world.txt.COMPLETED
2020-06-23 04:24:23,397 (SinkRunner-PollingRunner-DefaultSinkProcessor) [INFO - org.apache.flume.sink.hdfs.HDFSDataStream.configure(HDFSDataStream.java:57)] Serializer = TEXT, UseRawLocalFileSystem = false
2020-06-23 04:24:23,589 (SinkRunner-PollingRunner-DefaultSinkProcessor) [INFO - org.apache.flume.sink.hdfs.BucketWriter.open(BucketWriter.java:251)] Creating /flume/events/20-06-23/0420//wangjie-.1592857463398.tmp
2020-06-23 04:24:25,194 (SinkRunner-PollingRunner-DefaultSinkProcessor) [INFO - org.apache.flume.sink.hdfs.BucketWriter.close(BucketWriter.java:393)] Closing /flume/events/20-06-23/0420//wangjie-.1592857463398.tmp
2020-06-23 04:24:25,248 (hdfs-k1-call-runner-6) [INFO - org.apache.flume.sink.hdfs.BucketWriter$8.call(BucketWriter.java:655)] Renaming /flume/events/20-06-23/0420/wangjie-.1592857463398.tmp to /flume/events/20-06-23/0420/wangjie-.1592857463398
2020-06-23 04:24:25,280 (SinkRunner-PollingRunner-DefaultSinkProcessor) [INFO - org.apache.flume.sink.hdfs.BucketWriter.open(BucketWriter.java:251)] Creating /flume/events/20-06-23/0420//wangjie-.1592857463399.tmp
2020-06-23 04:24:25,347 (SinkRunner-PollingRunner-DefaultSinkProcessor) [INFO - org.apache.flume.sink.hdfs.BucketWriter.close(BucketWriter.java:393)] Closing /flume/events/20-06-23/0420//wangjie-.1592857463399.tmp
2020-06-23 04:24:25,355 (hdfs-k1-call-runner-1) [INFO - org.apache.flume.sink.hdfs.BucketWriter$8.call(BucketWriter.java:655)] Renaming /flume/events/20-06-23/0420/wangjie-.1592857463399.tmp to /flume/events/20-06-23/0420/wangjie-.1592857463399
2020-06-23 04:24:25,377 (SinkRunner-PollingRunner-DefaultSinkProcessor) [INFO - org.apache.flume.sink.hdfs.BucketWriter.open(BucketWriter.java:251)] Creating /flume/events/20-06-23/0420//wangjie-.1592857463400.tmp
2020-06-23 04:24:28,399 (hdfs-k1-roll-timer-0) [INFO - org.apache.flume.sink.hdfs.BucketWriter.close(BucketWriter.java:393)] Closing /flume/events/20-06-23/0420//wangjie-.1592857463400.tmp
2020-06-23 04:24:28,410 (hdfs-k1-call-runner-6) [INFO - org.apache.flume.sink.hdfs.BucketWriter$8.call(BucketWriter.java:655)] Renaming /flume/events/20-06-23/0420/wangjie-.1592857463400.tmp to /flume/events/20-06-23/0420/wangjie-.1592857463400
2020-06-23 04:24:28,412 (hdfs-k1-roll-timer-0) [INFO - org.apache.flume.sink.hdfs.HDFSEventSink$1.run(HDFSEventSink.java:382)] Writer callback called.

6 扩展启动命令解释

bin/flume-ng agent --conf conf --conf-file conf/netcat-logger.conf --name a1 -Dflume.root.logger=INFO,console

bin/flume-ng agent -c ./conf -f ./conf/spool-hdfs.conf -n a1 -Dflume.root.logger=INFO,console

--conf(-c)  指定flume默认的配置文件路径。要求改路径下必须有两个文件：
			flume-env.sh 	
			log4j.properties
--conf-file(-f) 指定采集方案的路径
--name(-n)       指定本agent进程名  要和采集方案中对应上
-Dflume.root.logger=INFO,console  开启日志 打印在控制台