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Pedro changes for videos #5

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Merged
merged 3 commits into from
Dec 17, 2017
Merged

Pedro changes for videos #5

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f9c885f
Removed gradle files
Dec 17, 2017
a6dc078
Changed SortedWordCountSolution.py to use the sortBy operation
Dec 17, 2017
76f5cce
Changed scripts to use the conf paramenter on the SparkContext constr…
Dec 17, 2017
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33 changes: 0 additions & 33 deletions build.gradle
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6 changes: 0 additions & 6 deletions gradle/wrapper/gradle-wrapper.properties
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160 changes: 0 additions & 160 deletions gradlew
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90 changes: 0 additions & 90 deletions gradlew.bat
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7 changes: 3 additions & 4 deletions pairRdd/aggregation/reducebykey/WordCount.py
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Original file line number Diff line number Diff line change
@@ -1,9 +1,8 @@
from pyspark import SparkContext
from pyspark import SparkContext, SparkConf

if __name__ == "__main__":

sc = SparkContext("local", "wordCounts")
sc.setLogLevel("ERROR")
conf = SparkConf().setAppName("wordCounts").setMaster("local[3]")
sc = SparkContext(conf = conf)

lines = sc.textFile("in/word_count.text")
wordRdd = lines.flatMap(lambda line: line.split(" "))
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7 changes: 3 additions & 4 deletions pairRdd/create/PairRddFromRegularRdd.py
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Original file line number Diff line number Diff line change
@@ -1,9 +1,8 @@
from pyspark import SparkContext
from pyspark import SparkContext, SparkConf

if __name__ == "__main__":

sc = SparkContext("local", "create")
sc.setLogLevel("ERROR")
conf = SparkConf().setAppName("create").setMaster("local")
sc = SparkContext(conf = conf)

inputStrings = ["Lily 23", "Jack 29", "Mary 29", "James 8"]
regularRDDs = sc.parallelize(inputStrings)
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7 changes: 3 additions & 4 deletions pairRdd/create/PairRddFromTupleList.py
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Original file line number Diff line number Diff line change
@@ -1,9 +1,8 @@
from pyspark import SparkContext
from pyspark import SparkContext, SparkConf

if __name__ == "__main__":

sc = SparkContext("local", "create")
sc.setLogLevel("ERROR")
conf = SparkConf().setAppName("create").setMaster("local")
sc = SparkContext(conf = conf)

tuples = [("Lily", 23), ("Jack", 29), ("Mary", 29), ("James", 8)]
pairRDD = sc.parallelize(tuples)
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15 changes: 9 additions & 6 deletions pairRdd/groupbykey/GroupByKeyVsReduceByKey.py
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Original file line number Diff line number Diff line change
@@ -1,18 +1,21 @@
from pyspark import SparkContext
from pyspark import SparkContext, SparkConf

if __name__ == "__main__":

sc = SparkContext("local", "GroupByKeyVsReduceByKey")
sc.setLogLevel("ERROR")
conf = SparkConf().setAppName('GroupByKeyVsReduceByKey').setMaster("local[*]")
sc = SparkContext(conf = conf)

words = ["one", "two", "two", "three", "three", "three"]
wordsPairRdd = sc.parallelize(words).map(lambda word: (word, 1))

wordCountsWithReduceByKey = wordsPairRdd.reduceByKey(lambda x, y: x + y).collect()
wordCountsWithReduceByKey = wordsPairRdd \
.reduceByKey(lambda x, y: x + y) \
.collect()
print("wordCountsWithReduceByKey: {}".format(list(wordCountsWithReduceByKey)))

wordCountsWithGroupByKey = wordsPairRdd \
.groupByKey() \
.mapValues(lambda intIterable: len(intIterable)) \
.mapValues(len) \
.collect()
print("wordCountsWithGroupByKey: {}".format(list(wordCountsWithGroupByKey)))


7 changes: 3 additions & 4 deletions pairRdd/join/JoinOperations.py
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Original file line number Diff line number Diff line change
@@ -1,9 +1,8 @@
from pyspark import SparkContext
from pyspark import SparkContext, SparkConf

if __name__ == "__main__":

sc = SparkContext("local", "JoinOperations")
sc.setLogLevel("ERROR")
conf = SparkConf().setAppName("JoinOperations").setMaster("local[1]")
sc = SparkContext(conf = conf)

ages = sc.parallelize([("Tom", 29), ("John", 22)])
addresses = sc.parallelize([("James", "USA"), ("John", "UK")])
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