MAPREDUCE-7400. New MapReduce example - Sentiment Analysis

[MeetuPatel]

Description of PR

I am looking to add a new map reduce example, i.e, sentiment analysis. Sentiment analysis map reduce job helps in determining the sentiment score for a user. It takes each tweet made by an user and assigns a sentiment score for that tweet/sentence for a particular user and then aggregates the sentiment scores for all tweets made by all users.

This example takes the twitter dataset which contains users and the tweets made by users and gives the output as <username, sentiment score>. For each user, the sentiment score is calculated for all the tweets made by that particular user.

How was this patch tested?

This patch was tested using the twitter dataset on a single node Hadoop cluster in pseudo-distributed mode.

For code changes:

• Does the title or this PR starts with the corresponding JIRA issue id (e.g. 'HADOOP-17799. Your PR title ...')?
• Object storage: have the integration tests been executed and the endpoint declared according to the connector-specific documentation?
• If adding new dependencies to the code, are these dependencies licensed in a way that is compatible for inclusion under ASF 2.0?
• If applicable, have you updated the LICENSE, LICENSE-binary, NOTICE-binary files?

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	1m 2s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 1s		No case conflicting files found.
+0 🆗	codespell	0m 0s		codespell was not available.
+0 🆗	detsecrets	0m 0s		detect-secrets was not available.
+0 🆗	xmllint	0m 0s		xmllint was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
+1 💚	test4tests	0m 0s		The patch appears to include 1 new or modified test files.
			_ trunk Compile Tests _
+1 💚	mvninstall	38m 19s		trunk passed
+1 💚	compile	0m 39s		trunk passed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1
+1 💚	compile	0m 36s		trunk passed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
+1 💚	checkstyle	0m 44s		trunk passed
+1 💚	mvnsite	0m 42s		trunk passed
+1 💚	javadoc	0m 53s		trunk passed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1
+1 💚	javadoc	0m 44s		trunk passed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
+1 💚	spotbugs	1m 11s		trunk passed
+1 💚	shadedclient	20m 18s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 26s		the patch passed
+1 💚	compile	0m 28s		the patch passed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1
+1 💚	javac	0m 28s		the patch passed
+1 💚	compile	0m 24s		the patch passed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
+1 💚	javac	0m 24s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
-0 ⚠️	checkstyle	0m 22s	/results-checkstyle-hadoop-mapreduce-project_hadoop-mapreduce-examples.txt	hadoop-mapreduce-project/hadoop-mapreduce-examples: The patch generated 181 new + 15 unchanged - 0 fixed = 196 total (was 15)
+1 💚	mvnsite	0m 30s		the patch passed
+1 💚	javadoc	0m 25s		the patch passed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1
+1 💚	javadoc	0m 24s		the patch passed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
-1 ❌	spotbugs	0m 56s	/new-spotbugs-hadoop-mapreduce-project_hadoop-mapreduce-examples.html	hadoop-mapreduce-project/hadoop-mapreduce-examples generated 2 new + 0 unchanged - 0 fixed = 2 total (was 0)
+1 💚	shadedclient	19m 59s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
-1 ❌	unit	0m 57s	/patch-unit-hadoop-mapreduce-project_hadoop-mapreduce-examples.txt	hadoop-mapreduce-examples in the patch passed.
-1 ❌	asflicense	0m 43s	/results-asflicense.txt	The patch generated 1 ASF License warnings.
		92m 19s

Reason	Tests
SpotBugs	module:hadoop-mapreduce-project/hadoop-mapreduce-examples
	Found reliance on default encoding in org.apache.hadoop.examples.SentimentAnalysis$SentimentMapper.getList(Mapper$Context):in org.apache.hadoop.examples.SentimentAnalysis$SentimentMapper.getList(Mapper$Context): new java.io.InputStreamReader(InputStream) At SentimentAnalysis.java:[line 84]
	org.apache.hadoop.examples.SentimentAnalysis$SentimentMapper.getList(Mapper$Context) invokes System.exit(...), which shuts down the entire virtual machine At SentimentAnalysis.java:down the entire virtual machine At SentimentAnalysis.java:[line 92]
Failed junit tests	hadoop.examples.TestSentiment

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4808/1/artifact/out/Dockerfile
GITHUB PR	#4808
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient codespell detsecrets xmllint spotbugs checkstyle
uname	Linux f43454b9fe70 4.15.0-191-generic #202-Ubuntu SMP Thu Aug 4 01:49:29 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / cf1463c
Default Java	Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
Multi-JDK versions	/usr/lib/jvm/java-11-openjdk-amd64:Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4808/1/testReport/
Max. process+thread count	727 (vs. ulimit of 5500)
modules	C: hadoop-mapreduce-project/hadoop-mapreduce-examples U: hadoop-mapreduce-project/hadoop-mapreduce-examples
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4808/1/console
versions	git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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