| Commit message (Collapse) | Author | Age | Files | Lines |
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## What changes were proposed in this pull request?
Modify java example which is also reflect in document.
## How was this patch tested?
run test cases.
Author: sandy <phalodi@gmail.com>
Closes #14436 from phalodi/SPARK-16816.
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instead of MLlib Vector
## What changes were proposed in this pull request?
mllib.LDAExample uses ML pipeline and MLlib LDA algorithm. The former transforms original data into MLVector format, while the latter uses MLlibVector format.
## How was this patch tested?
Test manually.
Author: Xusen Yin <yinxusen@gmail.com>
Closes #14212 from yinxusen/SPARK-16558.
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## What changes were proposed in this pull request?
This PR makes various minor updates to examples of all language bindings to make sure they are consistent with each other. Some typos and missing parts (JDBC example in Scala/Java/Python) are also fixed.
## How was this patch tested?
Manually tested.
Author: Cheng Lian <lian@databricks.com>
Closes #14368 from liancheng/revise-examples.
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## What changes were proposed in this pull request?
Some Java examples are using mllib.linalg.Vectors instead of ml.linalg.Vectors and causes an exception when run. Also there are some Java examples that incorrectly specify data types in the schema, also causing an exception.
## How was this patch tested?
Ran corrected examples locally
Author: Bryan Cutler <cutlerb@gmail.com>
Closes #14405 from BryanCutler/java-examples-ml.Vectors-fix-SPARK-16800.
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whose side effects are required
## What changes were proposed in this pull request?
Use foreach/for instead of map where operation requires execution of body, not actually defining a transformation
## How was this patch tested?
Jenkins
Author: Sean Owen <sowen@cloudera.com>
Closes #14332 from srowen/SPARK-16694.
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language binding
This PR is based on PR #14098 authored by wangmiao1981.
## What changes were proposed in this pull request?
This PR replaces the original Python Spark SQL example file with the following three files:
- `sql/basic.py`
Demonstrates basic Spark SQL features.
- `sql/datasource.py`
Demonstrates various Spark SQL data sources.
- `sql/hive.py`
Demonstrates Spark SQL Hive interaction.
This PR also removes hard-coded Python example snippets in the SQL programming guide by extracting snippets from the above files using the `include_example` Liquid template tag.
## How was this patch tested?
Manually tested.
Author: wm624@hotmail.com <wm624@hotmail.com>
Author: Cheng Lian <lian@databricks.com>
Closes #14317 from liancheng/py-examples-update.
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definition and inherited from the parent
https://issues.apache.org/jira/browse/SPARK-16535
## What changes were proposed in this pull request?
When I scan through the pom.xml of sub projects, I found this warning as below and attached screenshot
```
Definition of groupId is redundant, because it's inherited from the parent
```
![screen shot 2016-07-13 at 3 13 11 pm](https://cloud.githubusercontent.com/assets/3925641/16823121/744f893e-4916-11e6-8a52-042f83b9db4e.png)
I've tried to remove some of the lines with groupId definition, and the build on my local machine is still ok.
```
<groupId>org.apache.spark</groupId>
```
As I just find now `<maven.version>3.3.9</maven.version>` is being used in Spark 2.x, and Maven-3 supports versionless parent elements: Maven 3 will remove the need to specify the parent version in sub modules. THIS is great (in Maven 3.1).
ref: http://stackoverflow.com/questions/3157240/maven-3-worth-it/3166762#3166762
## How was this patch tested?
I've tested by re-building the project, and build succeeded.
Author: Xin Ren <iamshrek@126.com>
Closes #14189 from keypointt/SPARK-16535.
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## What changes were proposed in this pull request?
This PR fixes four java linter `LineLength` errors. Those are all `LineLength` errors, but we had better remove all java linter errors before release.
## How was this patch tested?
After pass the Jenkins, `./dev/lint-java`.
Author: Dongjoon Hyun <dongjoon@apache.org>
Closes #14255 from dongjoon-hyun/minor_java_linter.
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## What changes were proposed in this pull request?
This PR moves one and the last hard-coded Scala example snippet from the SQL programming guide into `SparkSqlExample.scala`. It also renames all Scala/Java example files so that all "Sql" in the file names are updated to "SQL".
## How was this patch tested?
Manually verified the generated HTML page.
Author: Cheng Lian <lian@databricks.com>
Closes #14245 from liancheng/minor-scala-example-update.
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## What changes were proposed in this pull request?
The second arg in method `update()` is never used. So I delete it.
## How was this patch tested?
local run with `./bin/spark-submit examples/src/main/python/als.py`
Author: Zheng RuiFeng <ruifengz@foxmail.com>
Closes #14247 from zhengruifeng/als_refine.
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## What changes were proposed in this pull request?
Fix code style from ad hoc review of RC4 doc
## How was this patch tested?
manual
shivaram
Author: Felix Cheung <felixcheung_m@hotmail.com>
Closes #14250 from felixcheung/rdocs2rc4.
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minor fixes
## What changes were proposed in this pull request?
Cleanup of examples, mostly from PySpark-ML to fix minor issues: unused imports, style consistency, pipeline_example is a duplicate, use future print funciton, and a spelling error.
* The "Pipeline Example" is duplicated by "Simple Text Classification Pipeline" in Scala, Python, and Java.
* "Estimator Transformer Param Example" is duplicated by "Simple Params Example" in Scala, Python and Java
* Synced random_forest_classifier_example.py with Scala by adding IndexToString label converted
* Synced train_validation_split.py (in Scala ModelSelectionViaTrainValidationExample) by adjusting data split, adding grid for intercept.
* RegexTokenizer was doing nothing in tokenizer_example.py and JavaTokenizerExample.java, synced with Scala version
## How was this patch tested?
local tests and run modified examples
Author: Bryan Cutler <cutlerb@gmail.com>
Closes #14081 from BryanCutler/examples-cleanup-SPARK-16403.
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## What changes were proposed in this pull request?
Minor example updates
## How was this patch tested?
manual
shivaram
Author: Felix Cheung <felixcheung_m@hotmail.com>
Closes #14171 from felixcheung/rexample.
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- Hard-coded Spark SQL sample snippets were moved into source files under examples sub-project.
- Removed the inconsistency between Scala and Java Spark SQL examples
- Scala and Java Spark SQL examples were updated
The work is still in progress. All involved examples were tested manually. An additional round of testing will be done after the code review.
![image](https://cloud.githubusercontent.com/assets/6235869/16710314/51851606-462a-11e6-9fbe-0818daef65e4.png)
Author: aokolnychyi <okolnychyyanton@gmail.com>
Closes #14119 from aokolnychyi/spark_16303.
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## What changes were proposed in this pull request?
A structured streaming example with event time windowing.
## How was this patch tested?
Run locally
Author: James Thomas <jamesjoethomas@gmail.com>
Closes #13957 from jjthomas/current.
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## What changes were proposed in this pull request?
* Update SparkR ML section to make them consistent with SparkR API docs.
* Since #13972 adds labelling support for the ```include_example``` Jekyll plugin, so that we can split the single ```ml.R``` example file into multiple line blocks with different labels, and include them in different algorithms/models in the generated HTML page.
## How was this patch tested?
Only docs update, manually check the generated docs.
Author: Yanbo Liang <ybliang8@gmail.com>
Closes #14011 from yanboliang/r-user-guide-update.
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## What changes were proposed in this pull request?
After SPARK-16476 (committed earlier today as #14128), we can finally bump the version number.
## How was this patch tested?
N/A
Author: Reynold Xin <rxin@databricks.com>
Closes #14130 from rxin/SPARK-16477.
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language binding
https://issues.apache.org/jira/browse/SPARK-16381
## What changes were proposed in this pull request?
Update SQL examples and programming guide for R language binding.
Here I just follow example https://github.com/apache/spark/compare/master...liancheng:example-snippet-extraction, created a separate R file to store all the example code.
## How was this patch tested?
Manual test on my local machine.
Screenshot as below:
![screen shot 2016-07-06 at 4 52 25 pm](https://cloud.githubusercontent.com/assets/3925641/16638180/13925a58-439a-11e6-8d57-8451a63dcae9.png)
Author: Xin Ren <iamshrek@126.com>
Closes #14082 from keypointt/SPARK-16381.
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## What changes were proposed in this pull request?
1). Remove unused import in Scala example;
2). Move spark session import outside example off;
3). Change parameter setting the same as Scala;
4). Change comment to be consistent;
5). Make sure that Scala and python using the same data set;
I did one pass and fixed the above issues. There are missing examples in python, which might be added later.
TODO: For some examples, there are comments on how to run examples; But there are many missing. We can add them later.
## How was this patch tested?
(Please explain how this patch was tested. E.g. unit tests, integration tests, manual tests)
Manually test them
Author: wm624@hotmail.com <wm624@hotmail.com>
Closes #14021 from wangmiao1981/ann.
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guide example snippets from source files instead of hard code them
## What changes were proposed in this pull request?
I extract 6 example programs from GraphX programming guide and replace them with
`include_example` label.
The 6 example programs are:
- AggregateMessagesExample.scala
- SSSPExample.scala
- TriangleCountingExample.scala
- ConnectedComponentsExample.scala
- ComprehensiveExample.scala
- PageRankExample.scala
All the example code can run using
`bin/run-example graphx.EXAMPLE_NAME`
## How was this patch tested?
Manual.
Author: WeichenXu <WeichenXu123@outlook.com>
Closes #14015 from WeichenXu123/graphx_example_plugin.
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## What changes were proposed in this pull request?
This PR adds labelling support for the `include_example` Jekyll plugin, so that we may split a single source file into multiple line blocks with different labels, and include them in multiple code snippets in the generated HTML page.
## How was this patch tested?
Manually tested.
<img width="923" alt="screenshot at jun 29 19-53-21" src="https://cloud.githubusercontent.com/assets/230655/16451099/66a76db2-3e33-11e6-84fb-63104c2f0688.png">
Author: Cheng Lian <lian@databricks.com>
Closes #13972 from liancheng/include-example-with-labels.
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## What changes were proposed in this pull request?
Some appNames in ML examples are incorrect, mostly in PySpark but one in Scala. This corrects the names.
## How was this patch tested?
Style, local tests
Author: Bryan Cutler <cutlerb@gmail.com>
Closes #13949 from BryanCutler/pyspark-example-appNames-fix-SPARK-16261.
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## What changes were proposed in this pull request?
Network word count example for structured streaming
## How was this patch tested?
Run locally
Author: James Thomas <jamesjoethomas@gmail.com>
Author: James Thomas <jamesthomas@Jamess-MacBook-Pro.local>
Closes #13816 from jjthomas/master.
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ML style vectors
## What changes were proposed in this pull request?
Need to convert ML Vectors to the old MLlib style before doing Statistics.colStats operations on the DataFrame
## How was this patch tested?
Ran example, local tests
Author: Bryan Cutler <cutlerb@gmail.com>
Closes #13928 from BryanCutler/pyspark-ml-example-vector-conv-SPARK-16231.
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## What changes were proposed in this pull request?
reduce the denominator of SparkPi by 1
## How was this patch tested?
integration tests
Author: 杨浩 <yanghaogn@163.com>
Closes #13910 from yanghaogn/patch-1.
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and CountVectorizer
## What changes were proposed in this pull request?
Made changes to HashingTF,QuantileVectorizer and CountVectorizer
Author: GayathriMurali <gayathri.m@intel.com>
Closes #13745 from GayathriMurali/SPARK-15997.
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updates
## What changes were proposed in this pull request?
roxygen2 doc, programming guide, example updates
## How was this patch tested?
manual checks
shivaram
Author: Felix Cheung <felixcheung_m@hotmail.com>
Closes #13751 from felixcheung/rsparksessiondoc.
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## What changes were proposed in this pull request?
Make user guide changes to SparkR documentation for all changes that happened in 2.0 to Machine Learning APIs
Author: GayathriMurali <gayathri.m@intel.com>
Closes #13285 from GayathriMurali/SPARK-15129.
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regression
## What changes were proposed in this pull request?
add ml doc for ml isotonic regression
add scala example for ml isotonic regression
add java example for ml isotonic regression
add python example for ml isotonic regression
modify scala example for mllib isotonic regression
modify java example for mllib isotonic regression
modify python example for mllib isotonic regression
add data/mllib/sample_isotonic_regression_libsvm_data.txt
delete data/mllib/sample_isotonic_regression_data.txt
## How was this patch tested?
N/A
Author: WeichenXu <WeichenXu123@outlook.com>
Closes #13381 from WeichenXu123/add_isotonic_regression_doc.
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## What changes were proposed in this pull request?
Currently, R examples(`dataframe.R` and `data-manipulation.R`) fail like the following. We had better update them before releasing 2.0 RC. This PR updates them to use up-to-date APIs.
```bash
$ bin/spark-submit examples/src/main/r/dataframe.R
...
Warning message:
'createDataFrame(sqlContext...)' is deprecated.
Use 'createDataFrame(data, schema = NULL, samplingRatio = 1.0)' instead.
See help("Deprecated")
...
Warning message:
'read.json(sqlContext...)' is deprecated.
Use 'read.json(path)' instead.
See help("Deprecated")
...
Error: could not find function "registerTempTable"
Execution halted
```
## How was this patch tested?
Manual.
```
curl -LO http://s3-us-west-2.amazonaws.com/sparkr-data/flights.csv
bin/spark-submit examples/src/main/r/dataframe.R
bin/spark-submit examples/src/main/r/data-manipulation.R flights.csv
```
Author: Dongjoon Hyun <dongjoon@apache.org>
Closes #13714 from dongjoon-hyun/SPARK-15996.
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## What changes were proposed in this pull request?
We want to maintain API compatibility for DataFrameReader.text, and will introduce a new API called DataFrameReader.textFile which returns Dataset[String].
affected PRs:
https://github.com/apache/spark/pull/11731
https://github.com/apache/spark/pull/13104
https://github.com/apache/spark/pull/13184
## How was this patch tested?
N/A
Author: Wenchen Fan <wenchen@databricks.com>
Closes #13604 from cloud-fan/revert.
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## What changes were proposed in this pull request?
- Deprecate old Java accumulator API; should use Scala now
- Update Java tests and examples
- Don't bother testing old accumulator API in Java 8 (too)
- (fix a misspelling too)
## How was this patch tested?
Jenkins tests
Author: Sean Owen <sowen@cloudera.com>
Closes #13606 from srowen/SPARK-15086.
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Matrix APIs in the ML pipeline based algorithms
## What changes were proposed in this pull request?
This PR fixes Python examples to use the new ML Vector and Matrix APIs in the ML pipeline based algorithms.
I firstly executed this shell command, `grep -r "from pyspark.mllib" .` and then executed them all.
Some of tests in `ml` produced the error messages as below:
```
pyspark.sql.utils.IllegalArgumentException: u'requirement failed: Input type must be VectorUDT but got org.apache.spark.mllib.linalg.VectorUDTf71b0bce.'
```
So, I fixed them to use new ones just identically with some Python tests fixed in https://github.com/apache/spark/pull/12627
## How was this patch tested?
Manually tested for all the examples listed by `grep -r "from pyspark.mllib" .`.
Author: hyukjinkwon <gurwls223@gmail.com>
Closes #13393 from HyukjinKwon/SPARK-14615.
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if possible
## What changes were proposed in this pull request?
Instead of using local variable `sc` like the following example, this PR uses `spark.sparkContext`. This makes examples more concise, and also fixes some misleading, i.e., creating SparkContext from SparkSession.
```
- println("Creating SparkContext")
- val sc = spark.sparkContext
-
println("Writing local file to DFS")
val dfsFilename = dfsDirPath + "/dfs_read_write_test"
- val fileRDD = sc.parallelize(fileContents)
+ val fileRDD = spark.sparkContext.parallelize(fileContents)
```
This will change 12 files (+30 lines, -52 lines).
## How was this patch tested?
Manual.
Author: Dongjoon Hyun <dongjoon@apache.org>
Closes #13520 from dongjoon-hyun/SPARK-15773.
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## What changes were proposed in this pull request?
Made DefaultParamsReadable, DefaultParamsWritable public. Also added relevant doc and annotations. Added UnaryTransformerExample to demonstrate use of UnaryTransformer and DefaultParamsReadable,Writable.
## How was this patch tested?
Wrote example making use of the now-public APIs. Compiled and ran locally
Author: Joseph K. Bradley <joseph@databricks.com>
Closes #13461 from jkbradley/defaultparamswritable.
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ML examples
## What changes were proposed in this pull request?
Since [SPARK-15617](https://issues.apache.org/jira/browse/SPARK-15617) deprecated ```precision``` in ```MulticlassClassificationEvaluator```, many ML examples broken.
```python
pyspark.sql.utils.IllegalArgumentException: u'MulticlassClassificationEvaluator_4c3bb1d73d8cc0cedae6 parameter metricName given invalid value precision.'
```
We should use ```accuracy``` to replace ```precision``` in these examples.
## How was this patch tested?
Offline tests.
Author: Yanbo Liang <ybliang8@gmail.com>
Closes #13519 from yanboliang/spark-15771.
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## What changes were proposed in this pull request?
See [SPARK-15605](https://issues.apache.org/jira/browse/SPARK-15605) for the detail of this bug. This PR fix 2 major bugs in this example:
* The java example class use Param ```maxIter```, it will fail when calling ```Param.shouldOwn```. We need add a public method which return the ```maxIter``` Object. Because ```Params.params``` use java reflection to list all public method whose return type is ```Param```, and invoke them to get all defined param objects in the instance.
* The ```uid``` member defined in Java class will be initialized after Scala traits such as ```HasFeaturesCol```. So when ```HasFeaturesCol``` being constructed, they get ```uid``` with null, which will cause ```Param.shouldOwn``` check fail.
so, here is my changes:
* Add public method:
```public IntParam getMaxIterParam() {return maxIter;}```
* Use Java anonymous class overriding ```uid()``` to defined the ```uid```, and it solve the second problem described above.
* To make the ```getMaxIterParam ``` can be invoked using java reflection, we must make the two class (MyJavaLogisticRegression and MyJavaLogisticRegressionModel) public. so I make them become inner public static class.
## How was this patch tested?
Offline tests.
Author: Yanbo Liang <ybliang8@gmail.com>
Closes #13353 from yanboliang/spark-15605.
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AccumulatorV2
## What changes were proposed in this pull request?
The patch updates the codes & docs in the example module as well as the related doc module:
- [ ] [docs] `streaming-programming-guide.md`
- [x] scala code part
- [ ] java code part
- [ ] python code part
- [x] [examples] `RecoverableNetworkWordCount.scala`
- [ ] [examples] `JavaRecoverableNetworkWordCount.java`
- [ ] [examples] `recoverable_network_wordcount.py`
## How was this patch tested?
Ran the examples and verified results manually.
Author: Liwei Lin <lwlin7@gmail.com>
Closes #12981 from lw-lin/accumulatorV2-examples.
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## What changes were proposed in this pull request?
This PR changes function `SparkSession.builder.sparkContext(..)` from **private[sql]** into **private[spark]**, and uses it if applicable like the followings.
```
- val spark = SparkSession.builder().config(sc.getConf).getOrCreate()
+ val spark = SparkSession.builder().sparkContext(sc).getOrCreate()
```
## How was this patch tested?
Pass the existing Jenkins tests.
Author: Dongjoon Hyun <dongjoon@apache.org>
Closes #13365 from dongjoon-hyun/SPARK-15618.
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## What changes were proposed in this pull request?
No code change, just some typo fixing.
## How was this patch tested?
Manually run project build with testing, and build is successful.
Author: Xin Ren <iamshrek@126.com>
Closes #13385 from keypointt/codeWalkThroughStreaming.
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## What changes were proposed in this pull request?
Temp directory used to save records is not deleted after program exit in DataFrameExample. Although it called deleteOnExit, it doesn't work as the directory is not empty. Similar things happend in ContextCleanerSuite. Update the code to make sure temp directory is deleted after program exit.
## How was this patch tested?
unit tests and local build.
Author: dding3 <ding.ding@intel.com>
Closes #13328 from dding3/master.
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## What changes were proposed in this pull request?
(Please fill in changes proposed in this fix)
In the MLLib naivebayes example, scala and python example doesn't use libsvm data, but Java does.
I make changes in scala and python example to use the libsvm data as the same as Java example.
## How was this patch tested?
Manual tests
Author: wm624@hotmail.com <wm624@hotmail.com>
Closes #13301 from wangmiao1981/example.
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## What changes were proposed in this pull request?
`a` -> `an`
I use regex to generate potential error lines:
`grep -in ' a [aeiou]' mllib/src/main/scala/org/apache/spark/ml/*/*scala`
and review them line by line.
## How was this patch tested?
local build
`lint-java` checking
Author: Zheng RuiFeng <ruifengz@foxmail.com>
Closes #13317 from zhengruifeng/a_an.
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## What changes were proposed in this pull request?
Several classes and methods have been deprecated and are creating lots of build warnings in branch-2.0. This issue is to identify and fix those items:
* WithSGD classes: Change to make class not deprecated, object deprecated, and public class constructor deprecated. Any public use will require a deprecated API. We need to keep a non-deprecated private API since we cannot eliminate certain uses: Python API, streaming algs, and examples.
* Use in PythonMLlibAPI: Change to using private constructors
* Streaming algs: No warnings after we un-deprecate the classes
* Examples: Deprecate or change ones which use deprecated APIs
* MulticlassMetrics fields (precision, etc.)
* LinearRegressionSummary.model field
## How was this patch tested?
Existing tests. Checked for warnings manually.
Author: Sean Owen <sowen@cloudera.com>
Author: Joseph K. Bradley <joseph@databricks.com>
Closes #13314 from jkbradley/warning-cleanups.
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spark-shell error
## What changes were proposed in this pull request?
(Please fill in changes proposed in this fix)
The Binarization scala example val dataFrame : Dataframe = spark.createDataFrame(data).toDF("label", "feature"), which can't be pasted in the spark-shell as Dataframe is not imported. Compared with other examples, this explicit type is not required.
So I removed Dataframe in the code.
## How was this patch tested?
(Please explain how this patch was tested. E.g. unit tests, integration tests, manual tests)
Manually tested
Author: wm624@hotmail.com <wm624@hotmail.com>
Closes #13266 from wangmiao1981/unit.
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SparkSession.sparkContext instead of _sc
## What changes were proposed in this pull request?
Some PySpark examples need a SparkContext and get it by accessing _sc directly from the session. These examples should use the provided property `sparkContext` in `SparkSession` instead.
## How was this patch tested?
Ran modified examples
Author: Bryan Cutler <cutlerb@gmail.com>
Closes #13303 from BryanCutler/pyspark-session-sparkContext-MINOR.
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#### What changes were proposed in this pull request?
The `hive.metastore.warehouse.dir` property in hive-site.xml is deprecated since Spark 2.0.0. Users might not be able to connect to the existing metastore if they do not use the new conf parameter `spark.sql.warehouse.dir`.
This PR is to update the document and example for explaining the latest changes in the configuration of default location of database.
Below is the screenshot of the latest generated docs:
<img width="681" alt="screenshot 2016-05-20 08 38 10" src="https://cloud.githubusercontent.com/assets/11567269/15433296/a05c4ace-1e66-11e6-8d2b-73682b32e9c2.png">
<img width="789" alt="screenshot 2016-05-20 08 53 26" src="https://cloud.githubusercontent.com/assets/11567269/15433734/645dc42e-1e68-11e6-9476-effc9f8721bb.png">
<img width="789" alt="screenshot 2016-05-20 08 53 37" src="https://cloud.githubusercontent.com/assets/11567269/15433738/68569f92-1e68-11e6-83d3-ef5bb221a8d8.png">
No change is made in the R's example.
<img width="860" alt="screenshot 2016-05-20 08 54 38" src="https://cloud.githubusercontent.com/assets/11567269/15433779/965b8312-1e68-11e6-8bc4-53c88ceacde2.png">
#### How was this patch tested?
N/A
Author: gatorsmile <gatorsmile@gmail.com>
Closes #13225 from gatorsmile/document.
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## What changes were proposed in this pull request?
Use `SparkSession` according to [SPARK-15031](https://issues.apache.org/jira/browse/SPARK-15031)
`MLLLIB` is not recommended to use now, so examples in `MLLIB` are ignored in this PR.
`StreamingContext` can not be directly obtained from `SparkSession`, so example in `Streaming` are ignored too.
cc andrewor14
## How was this patch tested?
manual tests with spark-submit
Author: Zheng RuiFeng <ruifengz@foxmail.com>
Closes #13164 from zhengruifeng/use_sparksession_ii.
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## What changes were proposed in this pull request?
Update example code in examples/src/main/r/ml.R to reflect the new algorithms.
* spark.glm and glm
* spark.survreg
* spark.naiveBayes
* spark.kmeans
## How was this patch tested?
Offline test.
Author: Yanbo Liang <ybliang8@gmail.com>
Closes #13000 from yanboliang/spark-15222.
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## What changes were proposed in this pull request?
MLlib are not recommended to use, and some methods are even deprecated.
Update the warning message to recommend ML usage.
```
def showWarning() {
System.err.println(
"""WARN: This is a naive implementation of Logistic Regression and is given as an example!
|Please use either org.apache.spark.mllib.classification.LogisticRegressionWithSGD or
|org.apache.spark.mllib.classification.LogisticRegressionWithLBFGS
|for more conventional use.
""".stripMargin)
}
```
To
```
def showWarning() {
System.err.println(
"""WARN: This is a naive implementation of Logistic Regression and is given as an example!
|Please use org.apache.spark.ml.classification.LogisticRegression
|for more conventional use.
""".stripMargin)
}
```
## How was this patch tested?
local build
Author: Zheng RuiFeng <ruifengz@foxmail.com>
Closes #13190 from zhengruifeng/update_recd.
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