These include solutions for processing real-time cellular and satellite-based stream gage data, and analytical software for timely data-informed decision making. Thoughtfully designed instrumentation, software, and customized systems deliver reliable performance on every continent, in every climate, and on every ocean worldwide in the most isolated and harsh environments.įor decades, international hydrology and meteorology entities have recognized SUTRON’s industry-leading technologies. Our end-to-end systems collect, measure, store, transmit, and display vital data to help organizations forecast weather, and monitor and manage water resources. Since 1975, SUTRON has supported mission-critical decisions for a range of hydrological, meteorological, oceanic, and aviation applications. rw-r-r- 1 hdadmin supergroup 17 04:39 hdfs dfs -cat /flume_sink/ forecasting and monitoring of weather, and water conditions saves lives and safeguards property, resources, and infrastructure. We have copied ‘data2.txt’ into our spool directory and after that its status have been changed into ‘completed’ state. Now copy some files in spoolDir, they will be automatically being stored in HDFS. Now start the agent as, flume-ng agent -n agent1 -f /home/hdadmin/apache-flume-1.5.0-cdh5.3.2-bin/conf/nf COMPLETEDĪ.path = hdfs://localhost.localdomain:9000/flume_sinkĪ-sink1_1.hdfs.batchSize = 1000Ī.rollSize = 2684Ī.rollInterval = 0Ī.rollCount = 5000Ī.writeFormat=TextĪ.fileType = DataStreamĪ = fileChannel1Ī = fileChannel1 #Spooldir in my case is /home/hadoop/Desktop/flume_sinkĪ = /home/hdadmin/Desktop/flume_sinkĪ = falseĪ =. Let us see one more example for flume using “spooling directory” source.įirst create flume configuration file, cat nfĪ = 2000Ī = 100 No we have got the data into HDFS which was mentioned by source using “cat /home/hdadmin/tuple1”. Now open other terminal and check for hdfs://localhost:9000/flume-00001. We are using =DEBUG,console so that if any problem occurs it will be written on console. conf-location of configuration directory 05:06:47,268 (conf-file-poller-0) Checking file:conf/nf for changes 05:06:17,265 (conf-file-poller-0) Checking file:conf/nf for changes conf/ -f conf/nf -n agent1 =DEBUG,console Now execute the flume configuration file as, bin/flume-ng agent -conf. The sink is HDFS sink which means we are writing the data into HDFS.ĭataStream means it will not write any metadata, only actual data will be collected. Here “agent1” is the name of the agent and we are using ‘exec’ source. We need to set the property “type” for every component in Flume.įirst we need to write the java properties file as, cd cat nfĪ = cat /home/hdadmin/tuple1Ī = Channel1Ī.path = hdfs://localhost:9000/flume-00001 Source, Channel, Sink has its own set of properties. # properties for sourcesĮach component i.e. Then we need to set the properties of each source, sink and channel. # To point the source and sink to the channel Note– A source instance can specify multiple channels, but a sink instance can only specify one channel.sources = The configuration controls the types of sources, sinks, and channels that are used, as well as how they are connected together.įirst we need to list the sources, sinks and channels for the given agent which we are using, and then point the source and sink to a channel. We configure the flume agent using java properties file. Here we are using single source-channel-sink. Let just imagine that new files are continuously ingested into flume, but here we will be adding files by ourselves.
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