CCA175 Exam Dumps | CORRECT TEXT Problem Scenario 27 : You need to implement near real time solutions for collecting information

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Question 14/50

CORRECT TEXT
Problem Scenario 27 : You need to implement near real time solutions for collecting information when submitted in file with below information.
Data
echo "IBM,100,20160104" >> /tmp/spooldir/bb/.bb.txt
echo "IBM,103,20160105" >> /tmp/spooldir/bb/.bb.txt
mv /tmp/spooldir/bb/.bb.txt /tmp/spooldir/bb/bb.txt
After few mins
echo "IBM,100.2,20160104" >> /tmp/spooldir/dr/.dr.txt
echo "IBM,103.1,20160105" >> /tmp/spooldir/dr/.dr.txt
mv /tmp/spooldir/dr/.dr.txt /tmp/spooldir/dr/dr.txt
Requirements:
You have been given below directory location (if not available than create it) /tmp/spooldir .
You have a finacial subscription for getting stock prices from BloomBerg as well as
Reuters and using ftp you download every hour new files from their respective ftp site in directories /tmp/spooldir/bb and /tmp/spooldir/dr respectively.
As soon as file committed in this directory that needs to be available in hdfs in
/tmp/flume/finance location in a single directory.
Write a flume configuration file named flume7.conf and use it to load data in hdfs with following additional properties .
1 . Spool /tmp/spooldir/bb and /tmp/spooldir/dr
2 . File prefix in hdfs sholuld be events
3 . File suffix should be .log
4 . If file is not commited and in use than it should have _ as prefix.
5 . Data should be written as text to hdfs

Correct Answer:

See the explanation for Step by Step Solution and configuration.
Explanation:
Solution :
Step 1 : Create directory mkdir /tmp/spooldir/bb mkdir /tmp/spooldir/dr
Step 2 : Create flume configuration file, with below configuration for
agent1.sources = source1 source2
agent1 .sinks = sink1
agent1.channels = channel1
agent1 .sources.source1.channels = channel1
agentl .sources.source2.channels = channell agent1 .sinks.sinkl.channel = channell agent1 .sources.source1.type = spooldir agent1 .sources.sourcel.spoolDir = /tmp/spooldir/bb agent1 .sources.source2.type = spooldir
agent1 .sources.source2.spoolDir = /tmp/spooldir/dr
agent1 .sinks.sink1.type = hdfs
agent1 .sinks.sink1.hdfs.path = /tmp/flume/finance
agent1-sinks.sink1.hdfs.filePrefix = events
agent1.sinks.sink1.hdfs.fileSuffix = .log
agent1 .sinks.sink1.hdfs.inUsePrefix = _
agent1 .sinks.sink1.hdfs.fileType = Data Stream
agent1.channels.channel1.type = file
Step 4 : Run below command which will use this configuration file and append data in hdfs.
Start flume service:
flume-ng agent -conf /home/cloudera/flumeconf -conf-file
/home/cloudera/fIumeconf/fIume7.conf --name agent1
Step 5 : Open another terminal and create a file in /tmp/spooldir/
echo "IBM,100,20160104" > /tmp/spooldir/bb/.bb.txt
echo "IBM,103,20160105" > /tmp/spooldir/bb/.bb.txt mv /tmp/spooldir/bb/.bb.txt
/tmp/spooldir/bb/bb.txt
After few mins
echo "IBM,100.2,20160104" > /tmp/spooldir/dr/.dr.txt
echo "IBM,103.1,20160105" >/tmp/spooldir/dr/.dr.txt mv /tmp/spooldir/dr/.dr.txt
/tmp/spooldir/dr/dr.txt

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