Repository: spark
Updated Branches:
refs/heads/master 3ef6d98a8 -> b0e5840d4
[SPARK-19134][EXAMPLE] Fix several sql, mllib and status api examples not
working
## What changes were proposed in this pull request?
**binary_classification_metrics_example.py**
LibSVM datasource loads `ml.linalg.SparseVector` whereas the example requires
it to be `mllib.linalg.SparseVector`. For the equivalent Scala exmaple,
`BinaryClassificationMetricsExample.scala` seems fine.
```
./bin/spark-submit
examples/src/main/python/mllib/binary_classification_metrics_example.py
```
```
File
".../spark/examples/src/main/python/mllib/binary_classification_metrics_example.py",
line 39, in <lambda>
.rdd.map(lambda row: LabeledPoint(row[0], row[1]))
File ".../spark/python/pyspark/mllib/regression.py", line 54, in __init__
self.features = _convert_to_vector(features)
File ".../spark/python/pyspark/mllib/linalg/__init__.py", line 80, in
_convert_to_vector
raise TypeError("Cannot convert type %s into Vector" % type(l))
TypeError: Cannot convert type <class 'pyspark.ml.linalg.SparseVector'> into
Vector
```
**status_api_demo.py** (this one does not work on Python 3.4.6)
It's `queue` in Python 3+.
```
PYSPARK_PYTHON=python3 ./bin/spark-submit
examples/src/main/python/status_api_demo.py
```
```
Traceback (most recent call last):
File ".../spark/examples/src/main/python/status_api_demo.py", line 22, in
<module>
import Queue
ImportError: No module named 'Queue'
```
**bisecting_k_means_example.py**
`BisectingKMeansModel` does not implement `save` and `load` in Python.
```bash
./bin/spark-submit examples/src/main/python/mllib/bisecting_k_means_example.py
```
```
Traceback (most recent call last):
File ".../spark/examples/src/main/python/mllib/bisecting_k_means_example.py",
line 46, in <module>
model.save(sc, path)
AttributeError: 'BisectingKMeansModel' object has no attribute 'save'
```
**elementwise_product_example.py**
It calls `collect` from the vector.
```bash
./bin/spark-submit examples/src/main/python/mllib/elementwise_product_example.py
```
```
Traceback (most recent call last):
File
".../spark/examples/src/main/python/mllib/elementwise_product_example.py", line
48, in <module>
for each in transformedData2.collect():
File ".../spark/python/pyspark/mllib/linalg/__init__.py", line 478, in
__getattr__
return getattr(self.array, item)
AttributeError: 'numpy.ndarray' object has no attribute 'collect'
```
**These three tests look throwing an exception for a relative path set in
`spark.sql.warehouse.dir`.**
**hive.py**
```
./bin/spark-submit examples/src/main/python/sql/hive.py
```
```
Traceback (most recent call last):
File ".../spark/examples/src/main/python/sql/hive.py", line 47, in <module>
spark.sql("CREATE TABLE IF NOT EXISTS src (key INT, value STRING) USING
hive")
File ".../spark/python/lib/pyspark.zip/pyspark/sql/session.py", line 541, in
sql
File ".../spark/python/lib/py4j-0.10.4-src.zip/py4j/java_gateway.py", line
1133, in __call__
File ".../spark/python/lib/pyspark.zip/pyspark/sql/utils.py", line 69, in deco
pyspark.sql.utils.AnalysisException:
'org.apache.hadoop.hive.ql.metadata.HiveException:
MetaException(message:java.lang.IllegalArgumentException:
java.net.URISyntaxException: Relative path in absolute URI:
file:./spark-warehouse);'
```
**SparkHiveExample.scala**
```
./bin/run-example sql.hive.SparkHiveExample
```
```
Exception in thread "main" org.apache.hadoop.hive.ql.metadata.HiveException:
Unable to alter table. java.lang.IllegalArgumentException:
java.net.URISyntaxException: Relative path in absolute URI:
file:./spark-warehouse
at org.apache.hadoop.hive.ql.metadata.Hive.alterTable(Hive.java:498)
at org.apache.hadoop.hive.ql.metadata.Hive.alterTable(Hive.java:484)
at org.apache.hadoop.hive.ql.metadata.Hive.loadTable(Hive.java:1668)
```
**JavaSparkHiveExample.java**
```
./bin/run-example sql.hive.JavaSparkHiveExample
```
```
Exception in thread "main" org.apache.hadoop.hive.ql.metadata.HiveException:
Unable to alter table. java.lang.IllegalArgumentException:
java.net.URISyntaxException: Relative path in absolute URI:
file:./spark-warehouse
at org.apache.hadoop.hive.ql.metadata.Hive.alterTable(Hive.java:498)
at org.apache.hadoop.hive.ql.metadata.Hive.alterTable(Hive.java:484)
at org.apache.hadoop.hive.ql.metadata.Hive.loadTable(Hive.java:1668)
```
## How was this patch tested?
Manually via
```
./bin/spark-submit
examples/src/main/python/mllib/binary_classification_metrics_example.py
```
```
PYSPARK_PYTHON=python3 ./bin/spark-submit
examples/src/main/python/status_api_demo.py
```
```
./bin/spark-submit examples/src/main/python/mllib/bisecting_k_means_example.py
```
```
./bin/spark-submit examples/src/main/python/mllib/elementwise_product_example.py
```
```
./bin/spark-submit examples/src/main/python/sql/hive.py
```
```
./bin/run-example sql.hive.JavaSparkHiveExample
```
```
./bin/run-example sql.hive.SparkHiveExample
```
These were found via
```bash
find ./examples/src/main/python -name "*.py" -exec spark-submit {} \;
```
Author: hyukjinkwon <[email protected]>
Closes #16515 from HyukjinKwon/minor-example-fix.
Project: http://git-wip-us.apache.org/repos/asf/spark/repo
Commit: http://git-wip-us.apache.org/repos/asf/spark/commit/b0e5840d
Tree: http://git-wip-us.apache.org/repos/asf/spark/tree/b0e5840d
Diff: http://git-wip-us.apache.org/repos/asf/spark/diff/b0e5840d
Branch: refs/heads/master
Commit: b0e5840d4b37d7b73e300671795185bba37effb0
Parents: 3ef6d98
Author: hyukjinkwon <[email protected]>
Authored: Tue Jan 10 02:18:07 2017 -0800
Committer: Yanbo Liang <[email protected]>
Committed: Tue Jan 10 02:18:07 2017 -0800
----------------------------------------------------------------------
.../examples/sql/hive/JavaSparkHiveExample.java | 3 ++-
.../mllib/binary_classification_metrics_example.py | 15 +++++----------
.../main/python/mllib/bisecting_k_means_example.py | 5 -----
.../main/python/mllib/elementwise_product_example.py | 2 +-
examples/src/main/python/sql/hive.py | 4 ++--
examples/src/main/python/status_api_demo.py | 6 +++++-
.../spark/examples/sql/hive/SparkHiveExample.scala | 4 +++-
7 files changed, 18 insertions(+), 21 deletions(-)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/spark/blob/b0e5840d/examples/src/main/java/org/apache/spark/examples/sql/hive/JavaSparkHiveExample.java
----------------------------------------------------------------------
diff --git
a/examples/src/main/java/org/apache/spark/examples/sql/hive/JavaSparkHiveExample.java
b/examples/src/main/java/org/apache/spark/examples/sql/hive/JavaSparkHiveExample.java
index 8d06d38..2fe1307 100644
---
a/examples/src/main/java/org/apache/spark/examples/sql/hive/JavaSparkHiveExample.java
+++
b/examples/src/main/java/org/apache/spark/examples/sql/hive/JavaSparkHiveExample.java
@@ -17,6 +17,7 @@
package org.apache.spark.examples.sql.hive;
// $example on:spark_hive$
+import java.io.File;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
@@ -56,7 +57,7 @@ public class JavaSparkHiveExample {
public static void main(String[] args) {
// $example on:spark_hive$
// warehouseLocation points to the default location for managed databases
and tables
- String warehouseLocation = "spark-warehouse";
+ String warehouseLocation = new File("spark-warehouse").getAbsolutePath();
SparkSession spark = SparkSession
.builder()
.appName("Java Spark Hive Example")
http://git-wip-us.apache.org/repos/asf/spark/blob/b0e5840d/examples/src/main/python/mllib/binary_classification_metrics_example.py
----------------------------------------------------------------------
diff --git
a/examples/src/main/python/mllib/binary_classification_metrics_example.py
b/examples/src/main/python/mllib/binary_classification_metrics_example.py
index 91f8378..d14ce79 100644
--- a/examples/src/main/python/mllib/binary_classification_metrics_example.py
+++ b/examples/src/main/python/mllib/binary_classification_metrics_example.py
@@ -18,25 +18,20 @@
Binary Classification Metrics Example.
"""
from __future__ import print_function
-from pyspark.sql import SparkSession
+from pyspark import SparkContext
# $example on$
from pyspark.mllib.classification import LogisticRegressionWithLBFGS
from pyspark.mllib.evaluation import BinaryClassificationMetrics
-from pyspark.mllib.regression import LabeledPoint
+from pyspark.mllib.util import MLUtils
# $example off$
if __name__ == "__main__":
- spark = SparkSession\
- .builder\
- .appName("BinaryClassificationMetricsExample")\
- .getOrCreate()
+ sc = SparkContext(appName="BinaryClassificationMetricsExample")
# $example on$
# Several of the methods available in scala are currently missing from
pyspark
# Load training data in LIBSVM format
- data = spark\
-
.read.format("libsvm").load("data/mllib/sample_binary_classification_data.txt")\
- .rdd.map(lambda row: LabeledPoint(row[0], row[1]))
+ data = MLUtils.loadLibSVMFile(sc,
"data/mllib/sample_binary_classification_data.txt")
# Split data into training (60%) and test (40%)
training, test = data.randomSplit([0.6, 0.4], seed=11)
@@ -58,4 +53,4 @@ if __name__ == "__main__":
print("Area under ROC = %s" % metrics.areaUnderROC)
# $example off$
- spark.stop()
+ sc.stop()
http://git-wip-us.apache.org/repos/asf/spark/blob/b0e5840d/examples/src/main/python/mllib/bisecting_k_means_example.py
----------------------------------------------------------------------
diff --git a/examples/src/main/python/mllib/bisecting_k_means_example.py
b/examples/src/main/python/mllib/bisecting_k_means_example.py
index 7f4d040..31f3e72 100644
--- a/examples/src/main/python/mllib/bisecting_k_means_example.py
+++ b/examples/src/main/python/mllib/bisecting_k_means_example.py
@@ -40,11 +40,6 @@ if __name__ == "__main__":
# Evaluate clustering
cost = model.computeCost(parsedData)
print("Bisecting K-means Cost = " + str(cost))
-
- # Save and load model
- path =
"target/org/apache/spark/PythonBisectingKMeansExample/BisectingKMeansModel"
- model.save(sc, path)
- sameModel = BisectingKMeansModel.load(sc, path)
# $example off$
sc.stop()
http://git-wip-us.apache.org/repos/asf/spark/blob/b0e5840d/examples/src/main/python/mllib/elementwise_product_example.py
----------------------------------------------------------------------
diff --git a/examples/src/main/python/mllib/elementwise_product_example.py
b/examples/src/main/python/mllib/elementwise_product_example.py
index 6d8bf6d..8ae9afb 100644
--- a/examples/src/main/python/mllib/elementwise_product_example.py
+++ b/examples/src/main/python/mllib/elementwise_product_example.py
@@ -45,7 +45,7 @@ if __name__ == "__main__":
print(each)
print("transformedData2:")
- for each in transformedData2.collect():
+ for each in transformedData2:
print(each)
sc.stop()
http://git-wip-us.apache.org/repos/asf/spark/blob/b0e5840d/examples/src/main/python/sql/hive.py
----------------------------------------------------------------------
diff --git a/examples/src/main/python/sql/hive.py
b/examples/src/main/python/sql/hive.py
index ba01544..1f175d7 100644
--- a/examples/src/main/python/sql/hive.py
+++ b/examples/src/main/python/sql/hive.py
@@ -18,7 +18,7 @@
from __future__ import print_function
# $example on:spark_hive$
-from os.path import expanduser, join
+from os.path import expanduser, join, abspath
from pyspark.sql import SparkSession
from pyspark.sql import Row
@@ -34,7 +34,7 @@ Run with:
if __name__ == "__main__":
# $example on:spark_hive$
# warehouse_location points to the default location for managed databases
and tables
- warehouse_location = 'spark-warehouse'
+ warehouse_location = abspath('spark-warehouse')
spark = SparkSession \
.builder \
http://git-wip-us.apache.org/repos/asf/spark/blob/b0e5840d/examples/src/main/python/status_api_demo.py
----------------------------------------------------------------------
diff --git a/examples/src/main/python/status_api_demo.py
b/examples/src/main/python/status_api_demo.py
index 49b7902..8cc8cc8 100644
--- a/examples/src/main/python/status_api_demo.py
+++ b/examples/src/main/python/status_api_demo.py
@@ -19,7 +19,11 @@ from __future__ import print_function
import time
import threading
-import Queue
+import sys
+if sys.version >= '3':
+ import queue as Queue
+else:
+ import Queue
from pyspark import SparkConf, SparkContext
http://git-wip-us.apache.org/repos/asf/spark/blob/b0e5840d/examples/src/main/scala/org/apache/spark/examples/sql/hive/SparkHiveExample.scala
----------------------------------------------------------------------
diff --git
a/examples/src/main/scala/org/apache/spark/examples/sql/hive/SparkHiveExample.scala
b/examples/src/main/scala/org/apache/spark/examples/sql/hive/SparkHiveExample.scala
index d29ed95..3de2636 100644
---
a/examples/src/main/scala/org/apache/spark/examples/sql/hive/SparkHiveExample.scala
+++
b/examples/src/main/scala/org/apache/spark/examples/sql/hive/SparkHiveExample.scala
@@ -17,6 +17,8 @@
package org.apache.spark.examples.sql.hive
// $example on:spark_hive$
+import java.io.File
+
import org.apache.spark.sql.Row
import org.apache.spark.sql.SparkSession
// $example off:spark_hive$
@@ -38,7 +40,7 @@ object SparkHiveExample {
// $example on:spark_hive$
// warehouseLocation points to the default location for managed databases
and tables
- val warehouseLocation = "spark-warehouse"
+ val warehouseLocation = new File("spark-warehouse").getAbsolutePath
val spark = SparkSession
.builder()
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