[jira] [Commented] (SPARK-1834) NoSuchMethodError when invoking JavaPairRDD.reduce() in Java
[
https://issues.apache.org/jira/browse/SPARK-1834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14156464#comment-14156464
]
Alexis Seigneurin commented on SPARK-1834:
--
Same issue here with Spark 1.1.0: reduce() is not implemented on JavaPairRDD.
{code}
Tuple2 r = sc.textFile(filename)
.mapToPair(s -> new Tuple2(s[3], 1L))
.reduceByKey((x, y) -> x + y)
.reduce((t1, t2) -> t1._2 > t2._2 ? t1 : t2);
{code}
Produces:
{code}
Exception in thread "main" java.lang.NoSuchMethodError:
org.apache.spark.api.java.JavaPairRDD.reduce(Lorg/apache/spark/api/java/function/Function2;)Lscala/Tuple2;
at fr.ippon.dojo.spark.AnalyseParisTrees.main(AnalyseParisTrees.java:33)
{code}
However, reduce() is implemented on JavaRDD. I have had to add an intermediate
map() operation:
{code}
Tuple2 r = sc.textFile(filename)
.mapToPair(s -> new Tuple2(s[3], 1L))
.reduceByKey((x, y) -> x + y)
.map(t -> t)
.reduce((t1, t2) -> t1._2 > t2._2 ? t1 : t2);
{code}
> NoSuchMethodError when invoking JavaPairRDD.reduce() in Java
>
>
> Key: SPARK-1834
> URL: https://issues.apache.org/jira/browse/SPARK-1834
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
>Affects Versions: 0.9.1
> Environment: Redhat Linux, Java 7, Hadoop 2.2, Scala 2.10.4
>Reporter: John Snodgrass
>
> I get a java.lang.NoSuchMethod error when invoking JavaPairRDD.reduce(). Here
> is the partial stack trace:
> Exception in thread "main" java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:601)
> at
> org.apache.spark.deploy.worker.DriverWrapper$.main(DriverWrapper.scala:39)
> at
> org.apache.spark.deploy.worker.DriverWrapper.main(DriverWrapper.scala)
> Caused by: java.lang.NoSuchMethodError:
> org.apache.spark.api.java.JavaPairRDD.reduce(Lorg/apache/spark/api/java/function/Function2;)Lscala/Tuple2;
> at JavaPairRDDReduceTest.main(JavaPairRDDReduceTest.java:49)...
> I'm using Spark 0.9.1. I checked to ensure that I'm compiling with the same
> version of Spark as I am running on the cluster. The reduce() method works
> fine with JavaRDD, just not with JavaPairRDD. Here is a code snippet that
> exhibits the problem:
> ArrayList array = new ArrayList<>();
> for (int i = 0; i < 10; ++i) {
> array.add(i);
> }
> JavaRDD rdd = javaSparkContext.parallelize(array);
> JavaPairRDD testRDD = rdd.map(new
> PairFunction() {
> @Override
> public Tuple2 call(Integer t) throws Exception {
> return new Tuple2<>("" + t, t);
> }
> }).cache();
>
> testRDD.reduce(new Function2, Tuple2 Integer>, Tuple2>() {
> @Override
> public Tuple2 call(Tuple2 arg0,
> Tuple2 arg1) throws Exception {
> return new Tuple2<>(arg0._1 + arg1._1, arg0._2 * 10 + arg0._2);
> }
> });
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[jira] [Commented] (SPARK-1834) NoSuchMethodError when invoking JavaPairRDD.reduce() in Java
[
https://issues.apache.org/jira/browse/SPARK-1834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14156477#comment-14156477
]
Sean Owen commented on SPARK-1834:
--
Weird, I can reproduce this. I have a new test case for {{JavaAPISuite}} and am
investigating. It compiles fine but fails at runtime. I sense Scala shenanigans.
> NoSuchMethodError when invoking JavaPairRDD.reduce() in Java
>
>
> Key: SPARK-1834
> URL: https://issues.apache.org/jira/browse/SPARK-1834
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
>Affects Versions: 0.9.1
> Environment: Redhat Linux, Java 7, Hadoop 2.2, Scala 2.10.4
>Reporter: John Snodgrass
>
> I get a java.lang.NoSuchMethod error when invoking JavaPairRDD.reduce(). Here
> is the partial stack trace:
> Exception in thread "main" java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:601)
> at
> org.apache.spark.deploy.worker.DriverWrapper$.main(DriverWrapper.scala:39)
> at
> org.apache.spark.deploy.worker.DriverWrapper.main(DriverWrapper.scala)
> Caused by: java.lang.NoSuchMethodError:
> org.apache.spark.api.java.JavaPairRDD.reduce(Lorg/apache/spark/api/java/function/Function2;)Lscala/Tuple2;
> at JavaPairRDDReduceTest.main(JavaPairRDDReduceTest.java:49)...
> I'm using Spark 0.9.1. I checked to ensure that I'm compiling with the same
> version of Spark as I am running on the cluster. The reduce() method works
> fine with JavaRDD, just not with JavaPairRDD. Here is a code snippet that
> exhibits the problem:
> ArrayList array = new ArrayList<>();
> for (int i = 0; i < 10; ++i) {
> array.add(i);
> }
> JavaRDD rdd = javaSparkContext.parallelize(array);
> JavaPairRDD testRDD = rdd.map(new
> PairFunction() {
> @Override
> public Tuple2 call(Integer t) throws Exception {
> return new Tuple2<>("" + t, t);
> }
> }).cache();
>
> testRDD.reduce(new Function2, Tuple2 Integer>, Tuple2>() {
> @Override
> public Tuple2 call(Tuple2 arg0,
> Tuple2 arg1) throws Exception {
> return new Tuple2<>(arg0._1 + arg1._1, arg0._2 * 10 + arg0._2);
> }
> });
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[jira] [Commented] (SPARK-1834) NoSuchMethodError when invoking JavaPairRDD.reduce() in Java
[
https://issues.apache.org/jira/browse/SPARK-1834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14365438#comment-14365438
]
Josh Rosen commented on SPARK-1834:
---
Note that SPARK-3266 has now been fixed for 1.3.1 / 1.4.0.
> NoSuchMethodError when invoking JavaPairRDD.reduce() in Java
>
>
> Key: SPARK-1834
> URL: https://issues.apache.org/jira/browse/SPARK-1834
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
>Affects Versions: 0.9.1
> Environment: Redhat Linux, Java 7, Hadoop 2.2, Scala 2.10.4
>Reporter: John Snodgrass
>
> I get a java.lang.NoSuchMethod error when invoking JavaPairRDD.reduce(). Here
> is the partial stack trace:
> Exception in thread "main" java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:601)
> at
> org.apache.spark.deploy.worker.DriverWrapper$.main(DriverWrapper.scala:39)
> at
> org.apache.spark.deploy.worker.DriverWrapper.main(DriverWrapper.scala)
> Caused by: java.lang.NoSuchMethodError:
> org.apache.spark.api.java.JavaPairRDD.reduce(Lorg/apache/spark/api/java/function/Function2;)Lscala/Tuple2;
> at JavaPairRDDReduceTest.main(JavaPairRDDReduceTest.java:49)...
> I'm using Spark 0.9.1. I checked to ensure that I'm compiling with the same
> version of Spark as I am running on the cluster. The reduce() method works
> fine with JavaRDD, just not with JavaPairRDD. Here is a code snippet that
> exhibits the problem:
> ArrayList array = new ArrayList<>();
> for (int i = 0; i < 10; ++i) {
> array.add(i);
> }
> JavaRDD rdd = javaSparkContext.parallelize(array);
> JavaPairRDD testRDD = rdd.map(new
> PairFunction() {
> @Override
> public Tuple2 call(Integer t) throws Exception {
> return new Tuple2<>("" + t, t);
> }
> }).cache();
>
> testRDD.reduce(new Function2, Tuple2 Integer>, Tuple2>() {
> @Override
> public Tuple2 call(Tuple2 arg0,
> Tuple2 arg1) throws Exception {
> return new Tuple2<>(arg0._1 + arg1._1, arg0._2 * 10 + arg0._2);
> }
> });
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[jira] [Commented] (SPARK-1834) NoSuchMethodError when invoking JavaPairRDD.reduce() in Java
[
https://issues.apache.org/jira/browse/SPARK-1834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14085567#comment-14085567
]
Franklyn Dsouza commented on SPARK-1834:
There is no reduce function in JavaPairRDD
> NoSuchMethodError when invoking JavaPairRDD.reduce() in Java
>
>
> Key: SPARK-1834
> URL: https://issues.apache.org/jira/browse/SPARK-1834
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
>Affects Versions: 0.9.1
> Environment: Redhat Linux, Java 7, Hadoop 2.2, Scala 2.10.4
>Reporter: John Snodgrass
>
> I get a java.lang.NoSuchMethod error when invoking JavaPairRDD.reduce(). Here
> is the partial stack trace:
> Exception in thread "main" java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:601)
> at
> org.apache.spark.deploy.worker.DriverWrapper$.main(DriverWrapper.scala:39)
> at
> org.apache.spark.deploy.worker.DriverWrapper.main(DriverWrapper.scala)
> Caused by: java.lang.NoSuchMethodError:
> org.apache.spark.api.java.JavaPairRDD.reduce(Lorg/apache/spark/api/java/function/Function2;)Lscala/Tuple2;
> at JavaPairRDDReduceTest.main(JavaPairRDDReduceTest.java:49)...
> I'm using Spark 0.9.1. I checked to ensure that I'm compiling with the same
> version of Spark as I am running on the cluster. The reduce() method works
> fine with JavaRDD, just not with JavaPairRDD. Here is a code snippet that
> exhibits the problem:
> ArrayList array = new ArrayList<>();
> for (int i = 0; i < 10; ++i) {
> array.add(i);
> }
> JavaRDD rdd = javaSparkContext.parallelize(array);
> JavaPairRDD testRDD = rdd.map(new
> PairFunction() {
> @Override
> public Tuple2 call(Integer t) throws Exception {
> return new Tuple2<>("" + t, t);
> }
> }).cache();
>
> testRDD.reduce(new Function2, Tuple2 Integer>, Tuple2>() {
> @Override
> public Tuple2 call(Tuple2 arg0,
> Tuple2 arg1) throws Exception {
> return new Tuple2<>(arg0._1 + arg1._1, arg0._2 * 10 + arg0._2);
> }
> });
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[jira] [Commented] (SPARK-1834) NoSuchMethodError when invoking JavaPairRDD.reduce() in Java
[
https://issues.apache.org/jira/browse/SPARK-1834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14086085#comment-14086085
]
Sean Owen commented on SPARK-1834:
--
[~franklynDsouza] There is a reduce method available in JavaPairRDD, but it is
defined in the superclass JavaRDDLike.
[~jws] This method does exist. When you encounter NoSuchMethodError it's a sign
that the compile and runtime versions don't match, but here this method should
have been present for a long time in Spark. I don't know if this matters, but I
see you use map to generate a JavaPairRDD when I thought you had to use
mapToPair to get it using a PairFunction.
> NoSuchMethodError when invoking JavaPairRDD.reduce() in Java
>
>
> Key: SPARK-1834
> URL: https://issues.apache.org/jira/browse/SPARK-1834
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
>Affects Versions: 0.9.1
> Environment: Redhat Linux, Java 7, Hadoop 2.2, Scala 2.10.4
>Reporter: John Snodgrass
>
> I get a java.lang.NoSuchMethod error when invoking JavaPairRDD.reduce(). Here
> is the partial stack trace:
> Exception in thread "main" java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:601)
> at
> org.apache.spark.deploy.worker.DriverWrapper$.main(DriverWrapper.scala:39)
> at
> org.apache.spark.deploy.worker.DriverWrapper.main(DriverWrapper.scala)
> Caused by: java.lang.NoSuchMethodError:
> org.apache.spark.api.java.JavaPairRDD.reduce(Lorg/apache/spark/api/java/function/Function2;)Lscala/Tuple2;
> at JavaPairRDDReduceTest.main(JavaPairRDDReduceTest.java:49)...
> I'm using Spark 0.9.1. I checked to ensure that I'm compiling with the same
> version of Spark as I am running on the cluster. The reduce() method works
> fine with JavaRDD, just not with JavaPairRDD. Here is a code snippet that
> exhibits the problem:
> ArrayList array = new ArrayList<>();
> for (int i = 0; i < 10; ++i) {
> array.add(i);
> }
> JavaRDD rdd = javaSparkContext.parallelize(array);
> JavaPairRDD testRDD = rdd.map(new
> PairFunction() {
> @Override
> public Tuple2 call(Integer t) throws Exception {
> return new Tuple2<>("" + t, t);
> }
> }).cache();
>
> testRDD.reduce(new Function2, Tuple2 Integer>, Tuple2>() {
> @Override
> public Tuple2 call(Tuple2 arg0,
> Tuple2 arg1) throws Exception {
> return new Tuple2<>(arg0._1 + arg1._1, arg0._2 * 10 + arg0._2);
> }
> });
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[jira] [Commented] (SPARK-1834) NoSuchMethodError when invoking JavaPairRDD.reduce() in Java
[
https://issues.apache.org/jira/browse/SPARK-1834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14086643#comment-14086643
]
John Snodgrass commented on SPARK-1834:
---
[~srowen] In version 0.9.1, the map method was overloaded:
https://spark.apache.org/docs/0.9.1/api/core/index.html#org.apache.spark.api.java.JavaRDD
It was broken out into several different methods, including mapToPair, in a
later version of Spark. I think it was 1.0.0. I'm running 0.9.1.
> NoSuchMethodError when invoking JavaPairRDD.reduce() in Java
>
>
> Key: SPARK-1834
> URL: https://issues.apache.org/jira/browse/SPARK-1834
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
>Affects Versions: 0.9.1
> Environment: Redhat Linux, Java 7, Hadoop 2.2, Scala 2.10.4
>Reporter: John Snodgrass
>
> I get a java.lang.NoSuchMethod error when invoking JavaPairRDD.reduce(). Here
> is the partial stack trace:
> Exception in thread "main" java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:601)
> at
> org.apache.spark.deploy.worker.DriverWrapper$.main(DriverWrapper.scala:39)
> at
> org.apache.spark.deploy.worker.DriverWrapper.main(DriverWrapper.scala)
> Caused by: java.lang.NoSuchMethodError:
> org.apache.spark.api.java.JavaPairRDD.reduce(Lorg/apache/spark/api/java/function/Function2;)Lscala/Tuple2;
> at JavaPairRDDReduceTest.main(JavaPairRDDReduceTest.java:49)...
> I'm using Spark 0.9.1. I checked to ensure that I'm compiling with the same
> version of Spark as I am running on the cluster. The reduce() method works
> fine with JavaRDD, just not with JavaPairRDD. Here is a code snippet that
> exhibits the problem:
> ArrayList array = new ArrayList<>();
> for (int i = 0; i < 10; ++i) {
> array.add(i);
> }
> JavaRDD rdd = javaSparkContext.parallelize(array);
> JavaPairRDD testRDD = rdd.map(new
> PairFunction() {
> @Override
> public Tuple2 call(Integer t) throws Exception {
> return new Tuple2<>("" + t, t);
> }
> }).cache();
>
> testRDD.reduce(new Function2, Tuple2 Integer>, Tuple2>() {
> @Override
> public Tuple2 call(Tuple2 arg0,
> Tuple2 arg1) throws Exception {
> return new Tuple2<>(arg0._1 + arg1._1, arg0._2 * 10 + arg0._2);
> }
> });
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[jira] [Commented] (SPARK-1834) NoSuchMethodError when invoking JavaPairRDD.reduce() in Java
[
https://issues.apache.org/jira/browse/SPARK-1834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14086649#comment-14086649
]
Sean Owen commented on SPARK-1834:
--
Ah, you're right:
https://github.com/apache/spark/commit/181ec5030792a10f3ce77e997d0e2eda9bcd6139
It was unlikely to be the problem anyway. Very strange.
> NoSuchMethodError when invoking JavaPairRDD.reduce() in Java
>
>
> Key: SPARK-1834
> URL: https://issues.apache.org/jira/browse/SPARK-1834
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
>Affects Versions: 0.9.1
> Environment: Redhat Linux, Java 7, Hadoop 2.2, Scala 2.10.4
>Reporter: John Snodgrass
>
> I get a java.lang.NoSuchMethod error when invoking JavaPairRDD.reduce(). Here
> is the partial stack trace:
> Exception in thread "main" java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:601)
> at
> org.apache.spark.deploy.worker.DriverWrapper$.main(DriverWrapper.scala:39)
> at
> org.apache.spark.deploy.worker.DriverWrapper.main(DriverWrapper.scala)
> Caused by: java.lang.NoSuchMethodError:
> org.apache.spark.api.java.JavaPairRDD.reduce(Lorg/apache/spark/api/java/function/Function2;)Lscala/Tuple2;
> at JavaPairRDDReduceTest.main(JavaPairRDDReduceTest.java:49)...
> I'm using Spark 0.9.1. I checked to ensure that I'm compiling with the same
> version of Spark as I am running on the cluster. The reduce() method works
> fine with JavaRDD, just not with JavaPairRDD. Here is a code snippet that
> exhibits the problem:
> ArrayList array = new ArrayList<>();
> for (int i = 0; i < 10; ++i) {
> array.add(i);
> }
> JavaRDD rdd = javaSparkContext.parallelize(array);
> JavaPairRDD testRDD = rdd.map(new
> PairFunction() {
> @Override
> public Tuple2 call(Integer t) throws Exception {
> return new Tuple2<>("" + t, t);
> }
> }).cache();
>
> testRDD.reduce(new Function2, Tuple2 Integer>, Tuple2>() {
> @Override
> public Tuple2 call(Tuple2 arg0,
> Tuple2 arg1) throws Exception {
> return new Tuple2<>(arg0._1 + arg1._1, arg0._2 * 10 + arg0._2);
> }
> });
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