/minimalExampleCollapsed.scala Secret
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November 22, 2016 11:35
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| package at.ac.tuwien.thesis.problem | |
| import org.apache.log4j.{Level, Logger} | |
| import org.apache.spark.SparkConf | |
| import org.apache.spark.sql.SparkSession | |
| import org.apache.spark.sql.functions._ | |
| case class FooBar(city: String, postcode: String) | |
| object Foo extends App { | |
| // Logger.getLogger("org").setLevel(Level.WARN) | |
| val conf: SparkConf = new SparkConf() | |
| .setAppName("spark error") | |
| .setMaster("local[*]") | |
| .set("spark.executor.memory", "2G") | |
| .set("spark.executor.cores", "4") | |
| .set("spark.default.parallelism", "4") | |
| .set("spark.driver.memory", "1G") | |
| .set("spark.serializer", "org.apache.spark.serializer.KryoSerializer") | |
| .set("spark.speculation", "false") | |
| .set("spark.sql.codegen.maxCaseBranches", "1") | |
| val spark: SparkSession = SparkSession | |
| .builder() | |
| .config(conf) | |
| // .enableHiveSupport() | |
| .getOrCreate() | |
| import spark.implicits._ | |
| val myDf = Seq(("Ma. Lanzendorf", "0001"), ("123", "Munich"), ("?nnsbruck", "0104"), ("Deutschwagram", "1200"), | |
| ("Kirchschlag i.d. Buckl.Welt", "1234"), ("Bruck/Lth", "4567"), ("Schwarzach/Pg", "9801"), ("somethingTofilter", "foo"), | |
| ("A", "12"), ("Wien-Vereinte Nationen", "1400"), ("someREally long string name", "2346"), ("C", "333"), | |
| ("D", "3456"), ("E", "5432"), ("F", "1234"), ("F", "2345"), ("G", "4554"), ("H", "4544"), ("j", "7777")) | |
| .toDF("city", "postcode") | |
| .as[FooBar] | |
| myDf.show | |
| /** This is a fix for the possibly very simple match & replace cases | |
| * http://stackoverflow.com/questions/40730223/spark-spelling-correction-via-udf not so sure about the more complex ones | |
| * val spellingMistakes = Map( | |
| * "error1" -> "fix1" | |
| * ) | |
| * * | |
| * val spellingNameCorrection: (String => String) = (t: String) => { | |
| *titles.get(t) match { | |
| * case Some(tt) => tt // correct spelling | |
| * case None => t // keep original | |
| * } | |
| * } | |
| * val spellingUDF = udf(spellingNameCorrection) | |
| * * | |
| * val misspellings1 = hiddenSeasonalities | |
| * .withColumn("A", spellingUDF('A)) | |
| */ | |
| val misspellings1 = myDf | |
| .filter('city =!= "somethingTofilter") | |
| .withColumn("postcode", | |
| when(('city === "A") and ('postcode === "12"), "2212") | |
| .when(('city === "someREally long string name") and ('postcode === "2346"), "2340") | |
| .when(('city === "D") and ('postcode === "3456"), "3500") | |
| .when(('city === "F") and ('postcode === "1234"), "2222") | |
| .when(('city === "F") and ('postcode === "2345"), "2222") | |
| .otherwise('postcode) | |
| ) | |
| .withColumn("city", | |
| when('city === "Ma. Lanzendorf", "Maria Lanzendorf") | |
| .when('city === "123", "Munich") | |
| .when('city === "?nnsbruck", "Innsbruck") | |
| .when('city === "Deutschwagram", "Deutsch-Wagram") | |
| .when('city === "Kirchschlag i.d. Buckl.Welt", "Kirchschlag in der Buckligen Welt") | |
| .when('city === "Bruck/Lth", "Gemeinde Bruck an der Leitha") | |
| .when('city === "Schwarzach/Pg", "Schwarzach im Pongau") | |
| .when(('city === "Wien-Vereinte Nationen") and ('postcode === "1400"), "Internationales Zentrum Wien") | |
| .when(('city === "C") and ('postcode === "3333"), "fooCity") | |
| .when('city === "D", "D_city") | |
| .when(('city === "E") and ('postcode === "5432"), "Humenberg") | |
| .when(('city === "G") and ('city === "6111"), "g_city") | |
| .when(('city === "H") and ('postcode === "4544"), "Hfixed") | |
| .when(('city === "j") and ('postcode === "7777"), "jfixed") | |
| .otherwise('city)) | |
| // val misspellings1 = myDf.filter('city =!= "somethingTofilter") | |
| // .withColumn("city", when('city === "Ma. Lanzendorf", "Maria Lanzendorf").otherwise('city)) | |
| // .withColumn("city", when('city === "123", "Munich").otherwise('city)) | |
| // .withColumn("city", when('city === "?nnsbruck", "Innsbruck").otherwise('city)) | |
| // .withColumn("city", when('city === "Deutschwagram", "Deutsch-Wagram").otherwise('city)) | |
| // .withColumn("city", when('city === "Kirchschlag i.d. Buckl.Welt", "Kirchschlag in der Buckligen Welt").otherwise('city)) | |
| // .withColumn("city", when('city === "Bruck/Lth", "Gemeinde Bruck an der Leitha").otherwise('city)) | |
| // .withColumn("city", when('city === "Schwarzach/Pg", "Schwarzach im Pongau").otherwise('city)) | |
| // .withColumn("postcode", when(('city === "A") and ('postcode === 12), "2212").otherwise('postcode)) | |
| // .withColumn("city", when(('city === "Wien-Vereinte Nationen") and ('postcode === 1400), "Internationales Zentrum Wien").otherwise('city)) | |
| // .withColumn("postcode", when(('city === "someREally long string name") and ('postcode === 2346), "2340").otherwise('postcode)) | |
| // // in this minimal example apparently several more columns than initially supported work. but still it shows the same problems if columns up to here are enabled | |
| // .withColumn("city", when(('city === "C") and ('postcode === 3333), "fooCity").otherwise('city)) | |
| // .withColumn("postcode", when(('city === "D") and ('postcode === 3456), "3500").otherwise('postcode)) | |
| // .withColumn("city", when('city === "D", "D_city").otherwise('city)) | |
| // .withColumn("city", when(('city === "E") and ('postcode === 5432), "Humenberg").otherwise('city)) | |
| // .withColumn("postcode", when(('city === "F") and ('postcode === 1234), "2222").otherwise('postcode)) | |
| // .withColumn("postcode", when(('city === "F") and ('postcode === 2345), "2222").otherwise('postcode)) | |
| // .withColumn("city", when(('city === "G") and ('city === 6111), "g_city").otherwise('city)) | |
| // .withColumn("city", when(('city === "H") and ('postcode === 4544), "Hfixed").otherwise('city)) | |
| // .withColumn("city", when(('city === "j") and ('postcode === 7777), "jfixed").otherwise('city)) | |
| // if all are enabled again I get the familiar out of memory error | |
| // misspellings1.debugCodegen | |
| // print(misspellings1.explain(true)) | |
| // import org.apache.spark.sql.execution.debug._ | |
| // print(misspellings1.debugCodegen) | |
| misspellings1.show(10000) | |
| // | |
| Thread.sleep(100000) | |
| spark.stop | |
| } |
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== Parsed Logical Plan ==
GlobalLimit 10001
+- LocalLimit 10001
+- Project [CASE WHEN (city#5 = Ma. Lanzendorf) THEN Maria Lanzendorf WHEN (city#5 = 123) THEN Munich WHEN (city#5 = ?nnsbruck) THEN Innsbruck WHEN (city#5 = Deutschwagram) THEN Deutsch-Wagram WHEN (city#5 = Kirchschlag i.d. Buckl.Welt) THEN Kirchschlag in der Buckligen Welt WHEN (city#5 = Bruck/Lth) THEN Gemeinde Bruck an der Leitha WHEN (city#5 = Schwarzach/Pg) THEN Schwarzach im Pongau WHEN ((city#5 = Wien-Vereinte Nationen) && (postcode#18 = 1400)) THEN Internationales Zentrum Wien WHEN ((city#5 = C) && (postcode#18 = 3333)) THEN fooCity WHEN (city#5 = D) THEN D_city WHEN ((city#5 = E) && (postcode#18 = 5432)) THEN Humenberg WHEN ((city#5 = G) && (city#5 = 6111)) THEN g_city WHEN ((city#5 = H) && (postcode#18 = 4544)) THEN Hfixed WHEN ((city#5 = j) && (postcode#18 = 7777)) THEN jfixed ELSE city#5 END AS city#22, postcode#18]
+- Project [city#5, CASE WHEN ((city#5 = A) && (postcode#6 = 12)) THEN 2212 WHEN ((city#5 = someREally long string name) && (postcode#6 = 2346)) THEN 2340 WHEN ((city#5 = D) && (postcode#6 = 3456)) THEN 3500 WHEN ((city#5 = F) && (postcode#6 = 1234)) THEN 2222 WHEN ((city#5 = F) && (postcode#6 = 2345)) THEN 2222 ELSE postcode#6 END AS postcode#18]
+- Filter NOT (city#5 = somethingTofilter)
+- Project [_1#2 AS city#5, _2#3 AS postcode#6]
+- LocalRelation [_1#2, _2#3]
== Analyzed Logical Plan ==
city: string, postcode: string
GlobalLimit 10001
+- LocalLimit 10001
+- Project [CASE WHEN (city#5 = Ma. Lanzendorf) THEN Maria Lanzendorf WHEN (city#5 = 123) THEN Munich WHEN (city#5 = ?nnsbruck) THEN Innsbruck WHEN (city#5 = Deutschwagram) THEN Deutsch-Wagram WHEN (city#5 = Kirchschlag i.d. Buckl.Welt) THEN Kirchschlag in der Buckligen Welt WHEN (city#5 = Bruck/Lth) THEN Gemeinde Bruck an der Leitha WHEN (city#5 = Schwarzach/Pg) THEN Schwarzach im Pongau WHEN ((city#5 = Wien-Vereinte Nationen) && (postcode#18 = 1400)) THEN Internationales Zentrum Wien WHEN ((city#5 = C) && (postcode#18 = 3333)) THEN fooCity WHEN (city#5 = D) THEN D_city WHEN ((city#5 = E) && (postcode#18 = 5432)) THEN Humenberg WHEN ((city#5 = G) && (city#5 = 6111)) THEN g_city WHEN ((city#5 = H) && (postcode#18 = 4544)) THEN Hfixed WHEN ((city#5 = j) && (postcode#18 = 7777)) THEN jfixed ELSE city#5 END AS city#22, postcode#18]
+- Project [city#5, CASE WHEN ((city#5 = A) && (postcode#6 = 12)) THEN 2212 WHEN ((city#5 = someREally long string name) && (postcode#6 = 2346)) THEN 2340 WHEN ((city#5 = D) && (postcode#6 = 3456)) THEN 3500 WHEN ((city#5 = F) && (postcode#6 = 1234)) THEN 2222 WHEN ((city#5 = F) && (postcode#6 = 2345)) THEN 2222 ELSE postcode#6 END AS postcode#18]
+- Filter NOT (city#5 = somethingTofilter)
+- Project [_1#2 AS city#5, _2#3 AS postcode#6]
+- LocalRelation [_1#2, _2#3]
== Optimized Logical Plan ==
GlobalLimit 10001
+- LocalLimit 10001
+- Project [CASE WHEN (_1#2 = Ma. Lanzendorf) THEN Maria Lanzendorf WHEN (_1#2 = 123) THEN Munich WHEN (_1#2 = ?nnsbruck) THEN Innsbruck WHEN (_1#2 = Deutschwagram) THEN Deutsch-Wagram WHEN (_1#2 = Kirchschlag i.d. Buckl.Welt) THEN Kirchschlag in der Buckligen Welt WHEN (_1#2 = Bruck/Lth) THEN Gemeinde Bruck an der Leitha WHEN (_1#2 = Schwarzach/Pg) THEN Schwarzach im Pongau WHEN ((_1#2 = Wien-Vereinte Nationen) && (CASE WHEN ((_1#2 = A) && (_2#3 = 12)) THEN 2212 WHEN ((_1#2 = someREally long string name) && (_2#3 = 2346)) THEN 2340 WHEN ((_1#2 = D) && (_2#3 = 3456)) THEN 3500 WHEN ((_1#2 = F) && (_2#3 = 1234)) THEN 2222 WHEN ((_1#2 = F) && (_2#3 = 2345)) THEN 2222 ELSE _2#3 END = 1400)) THEN Internationales Zentrum Wien WHEN ((_1#2 = C) && (CASE WHEN ((_1#2 = A) && (_2#3 = 12)) THEN 2212 WHEN ((_1#2 = someREally long string name) && (_2#3 = 2346)) THEN 2340 WHEN ((_1#2 = D) && (_2#3 = 3456)) THEN 3500 WHEN ((_1#2 = F) && (_2#3 = 1234)) THEN 2222 WHEN ((_1#2 = F) && (_2#3 = 2345)) THEN 2222 ELSE _2#3 END = 3333)) THEN fooCity WHEN (_1#2 = D) THEN D_city WHEN ((_1#2 = E) && (CASE WHEN ((_1#2 = A) && (_2#3 = 12)) THEN 2212 WHEN ((_1#2 = someREally long string name) && (_2#3 = 2346)) THEN 2340 WHEN ((_1#2 = D) && (_2#3 = 3456)) THEN 3500 WHEN ((_1#2 = F) && (_2#3 = 1234)) THEN 2222 WHEN ((_1#2 = F) && (_2#3 = 2345)) THEN 2222 ELSE _2#3 END = 5432)) THEN Humenberg WHEN ((_1#2 = G) && (_1#2 = 6111)) THEN g_city WHEN ((_1#2 = H) && (CASE WHEN ((_1#2 = A) && (_2#3 = 12)) THEN 2212 WHEN ((_1#2 = someREally long string name) && (_2#3 = 2346)) THEN 2340 WHEN ((_1#2 = D) && (_2#3 = 3456)) THEN 3500 WHEN ((_1#2 = F) && (_2#3 = 1234)) THEN 2222 WHEN ((_1#2 = F) && (_2#3 = 2345)) THEN 2222 ELSE _2#3 END = 4544)) THEN Hfixed WHEN ((_1#2 = j) && (CASE WHEN ((_1#2 = A) && (_2#3 = 12)) THEN 2212 WHEN ((_1#2 = someREally long string name) && (_2#3 = 2346)) THEN 2340 WHEN ((_1#2 = D) && (_2#3 = 3456)) THEN 3500 WHEN ((_1#2 = F) && (_2#3 = 1234)) THEN 2222 WHEN ((_1#2 = F) && (_2#3 = 2345)) THEN 2222 ELSE _2#3 END = 7777)) THEN jfixed ELSE _1#2 END AS city#22, CASE WHEN ((_1#2 = A) && (_2#3 = 12)) THEN 2212 WHEN ((_1#2 = someREally long string name) && (_2#3 = 2346)) THEN 2340 WHEN ((_1#2 = D) && (_2#3 = 3456)) THEN 3500 WHEN ((_1#2 = F) && (_2#3 = 1234)) THEN 2222 WHEN ((_1#2 = F) && (_2#3 = 2345)) THEN 2222 ELSE _2#3 END AS postcode#18]
+- Filter (isnotnull(_1#2) && NOT (_1#2 = somethingTofilter))
+- LocalRelation [_1#2, _2#3]
== Physical Plan ==
CollectLimit 10001
+- Project [CASE WHEN (_1#2 = Ma. Lanzendorf) THEN Maria Lanzendorf WHEN (_1#2 = 123) THEN Munich WHEN (_1#2 = ?nnsbruck) THEN Innsbruck WHEN (_1#2 = Deutschwagram) THEN Deutsch-Wagram WHEN (_1#2 = Kirchschlag i.d. Buckl.Welt) THEN Kirchschlag in der Buckligen Welt WHEN (_1#2 = Bruck/Lth) THEN Gemeinde Bruck an der Leitha WHEN (_1#2 = Schwarzach/Pg) THEN Schwarzach im Pongau WHEN ((_1#2 = Wien-Vereinte Nationen) && (CASE WHEN ((_1#2 = A) && (_2#3 = 12)) THEN 2212 WHEN ((_1#2 = someREally long string name) && (_2#3 = 2346)) THEN 2340 WHEN ((_1#2 = D) && (_2#3 = 3456)) THEN 3500 WHEN ((_1#2 = F) && (_2#3 = 1234)) THEN 2222 WHEN ((_1#2 = F) && (_2#3 = 2345)) THEN 2222 ELSE _2#3 END = 1400)) THEN Internationales Zentrum Wien WHEN ((_1#2 = C) && (CASE WHEN ((_1#2 = A) && (_2#3 = 12)) THEN 2212 WHEN ((_1#2 = someREally long string name) && (_2#3 = 2346)) THEN 2340 WHEN ((_1#2 = D) && (_2#3 = 3456)) THEN 3500 WHEN ((_1#2 = F) && (_2#3 = 1234)) THEN 2222 WHEN ((_1#2 = F) && (_2#3 = 2345)) THEN 2222 ELSE _2#3 END = 3333)) THEN fooCity WHEN (_1#2 = D) THEN D_city WHEN ((_1#2 = E) && (CASE WHEN ((_1#2 = A) && (_2#3 = 12)) THEN 2212 WHEN ((_1#2 = someREally long string name) && (_2#3 = 2346)) THEN 2340 WHEN ((_1#2 = D) && (_2#3 = 3456)) THEN 3500 WHEN ((_1#2 = F) && (_2#3 = 1234)) THEN 2222 WHEN ((_1#2 = F) && (_2#3 = 2345)) THEN 2222 ELSE _2#3 END = 5432)) THEN Humenberg WHEN ((_1#2 = G) && (_1#2 = 6111)) THEN g_city WHEN ((_1#2 = H) && (CASE WHEN ((_1#2 = A) && (_2#3 = 12)) THEN 2212 WHEN ((_1#2 = someREally long string name) && (_2#3 = 2346)) THEN 2340 WHEN ((_1#2 = D) && (_2#3 = 3456)) THEN 3500 WHEN ((_1#2 = F) && (_2#3 = 1234)) THEN 2222 WHEN ((_1#2 = F) && (_2#3 = 2345)) THEN 2222 ELSE _2#3 END = 4544)) THEN Hfixed WHEN ((_1#2 = j) && (CASE WHEN ((_1#2 = A) && (_2#3 = 12)) THEN 2212 WHEN ((_1#2 = someREally long string name) && (_2#3 = 2346)) THEN 2340 WHEN ((_1#2 = D) && (_2#3 = 3456)) THEN 3500 WHEN ((_1#2 = F) && (_2#3 = 1234)) THEN 2222 WHEN ((_1#2 = F) && (_2#3 = 2345)) THEN 2222 ELSE _2#3 END = 7777)) THEN jfixed ELSE _1#2 END AS city#22, CASE WHEN ((_1#2 = A) && (_2#3 = 12)) THEN 2212 WHEN ((_1#2 = someREally long string name) && (_2#3 = 2346)) THEN 2340 WHEN ((_1#2 = D) && (_2#3 = 3456)) THEN 3500 WHEN ((_1#2 = F) && (_2#3 = 1234)) THEN 2222 WHEN ((_1#2 = F) && (_2#3 = 2345)) THEN 2222 ELSE _2#3 END AS postcode#18]
+- *Filter (isnotnull(_1#2) && NOT (_1#2 = somethingTofilter))
+- LocalTableScan [_1#2, _2#3]