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* [SPARK-14301][EXAMPLES] Java examples code merge and clean up.Yong Tang2016-04-108-534/+16
| | | | | | | | | | | | | | | | | | | | | | | ## What changes were proposed in this pull request? This fix tries to remove duplicate Java code in examples/mllib and examples/ml. The following changes have been made: ``` deleted: ml/JavaCrossValidatorExample.java (duplicate of JavaModelSelectionViaCrossValidationExample.java) deleted: ml/JavaTrainValidationSplitExample.java (duplicated of JavaModelSelectionViaTrainValidationSplitExample.java) deleted: mllib/JavaFPGrowthExample.java (duplicate of JavaSimpleFPGrowth.java) deleted: mllib/JavaLDAExample.java (duplicate of JavaLatentDirichletAllocationExample.java) deleted: mllib/JavaKMeans.java (merged with JavaKMeansExample.java) deleted: mllib/JavaLR.java (duplicate of JavaLinearRegressionWithSGDExample.java) updated: mllib/JavaKMeansExample.java (merged with mllib/JavaKMeans.java) ``` ## How was this patch tested? Existing tests passed. Author: Yong Tang <yong.tang.github@outlook.com> Closes #12143 from yongtang/SPARK-14301.
* [SPARK-14355][BUILD] Fix typos in Exception/Testcase/Comments and static ↵Dongjoon Hyun2016-04-035-17/+17
| | | | | | | | | | | | | | | | | | | | | analysis results ## What changes were proposed in this pull request? This PR contains the following 5 types of maintenance fix over 59 files (+94 lines, -93 lines). - Fix typos(exception/log strings, testcase name, comments) in 44 lines. - Fix lint-java errors (MaxLineLength) in 6 lines. (New codes after SPARK-14011) - Use diamond operators in 40 lines. (New codes after SPARK-13702) - Fix redundant semicolon in 5 lines. - Rename class `InferSchemaSuite` to `CSVInferSchemaSuite` in CSVInferSchemaSuite.scala. ## How was this patch tested? Manual and pass the Jenkins tests. Author: Dongjoon Hyun <dongjoon@apache.org> Closes #12139 from dongjoon-hyun/SPARK-14355.
* [MINOR] Fix newly added java-lint errorsDongjoon Hyun2016-03-262-2/+2
| | | | | | | | | | | | | | ## What changes were proposed in this pull request? This PR fixes some newly added java-lint errors(unused-imports, line-lengsth). ## How was this patch tested? Pass the Jenkins tests. Author: Dongjoon Hyun <dongjoon@apache.org> Closes #11968 from dongjoon-hyun/SPARK-14167.
* [SPARK-14073][STREAMING][TEST-MAVEN] Move flume back to SparkShixiong Zhu2016-03-251-0/+75
| | | | | | | | | | | | | | ## What changes were proposed in this pull request? This PR moves flume back to Spark as per the discussion in the dev mail-list. ## How was this patch tested? Existing Jenkins tests. Author: Shixiong Zhu <shixiong@databricks.com> Closes #11895 from zsxwing/move-flume-back.
* [SPARK-13017][DOCS] Replace example code in mllib-feature-extraction.md ↵Xin Ren2016-03-242-0/+161
| | | | | | | | | | | | | | | | | | | | | using include_example Replace example code in mllib-feature-extraction.md using include_example https://issues.apache.org/jira/browse/SPARK-13017 The example code in the user guide is embedded in the markdown and hence it is not easy to test. It would be nice to automatically test them. This JIRA is to discuss options to automate example code testing and see what we can do in Spark 1.6. Goal is to move actual example code to spark/examples and test compilation in Jenkins builds. Then in the markdown, we can reference part of the code to show in the user guide. This requires adding a Jekyll tag that is similar to https://github.com/jekyll/jekyll/blob/master/lib/jekyll/tags/include.rb, e.g., called include_example. `{% include_example scala/org/apache/spark/examples/mllib/TFIDFExample.scala %}` Jekyll will find `examples/src/main/scala/org/apache/spark/examples/mllib/TFIDFExample.scala` and pick code blocks marked "example" and replace code block in `{% highlight %}` in the markdown. See more sub-tasks in parent ticket: https://issues.apache.org/jira/browse/SPARK-11337 Author: Xin Ren <iamshrek@126.com> Closes #11142 from keypointt/SPARK-13017.
* [SPARK-13019][DOCS] fix for scala-2.10 build: Replace example code in ↵Xin Ren2016-03-246-0/+387
| | | | | | | | | | | | | | | | | | | | | | mllib-statistics.md using include_example ## What changes were proposed in this pull request? This PR for ticket SPARK-13019 is based on previous PR(https://github.com/apache/spark/pull/11108). Since PR(https://github.com/apache/spark/pull/11108) is breaking scala-2.10 build, more work is needed to fix build errors. What I did new in this PR is adding keyword argument for 'fractions': ` val approxSample = data.sampleByKey(withReplacement = false, fractions = fractions)` ` val exactSample = data.sampleByKeyExact(withReplacement = false, fractions = fractions)` I reopened ticket on JIRA but sorry I don't know how to reopen a GitHub pull request, so I just submitting a new pull request. ## How was this patch tested? Manual build testing on local machine, build based on scala-2.10. Author: Xin Ren <iamshrek@126.com> Closes #11901 from keypointt/SPARK-13019.
* Revert "[SPARK-13019][DOCS] Replace example code in mllib-statistics.md ↵Xiangrui Meng2016-03-216-387/+0
| | | | | | using include_example" This reverts commit 1af8de200c4d3357bcb09e7bbc6deece00e885f2.
* [SPARK-13019][DOCS] Replace example code in mllib-statistics.md using ↵Xin Ren2016-03-216-0/+387
| | | | | | | | | | | | | | | | | | | | include_example https://issues.apache.org/jira/browse/SPARK-13019 The example code in the user guide is embedded in the markdown and hence it is not easy to test. It would be nice to automatically test them. This JIRA is to discuss options to automate example code testing and see what we can do in Spark 1.6. Goal is to move actual example code to spark/examples and test compilation in Jenkins builds. Then in the markdown, we can reference part of the code to show in the user guide. This requires adding a Jekyll tag that is similar to https://github.com/jekyll/jekyll/blob/master/lib/jekyll/tags/include.rb, e.g., called include_example. `{% include_example scala/org/apache/spark/examples/mllib/SummaryStatisticsExample.scala %}` Jekyll will find `examples/src/main/scala/org/apache/spark/examples/mllib/SummaryStatisticsExample.scala` and pick code blocks marked "example" and replace code block in `{% highlight %}` in the markdown. See more sub-tasks in parent ticket: https://issues.apache.org/jira/browse/SPARK-11337 Author: Xin Ren <iamshrek@126.com> Closes #11108 from keypointt/SPARK-13019.
* [SPARK-14011][CORE][SQL] Enable `LineLength` Java checkstyle ruleDongjoon Hyun2016-03-2112-34/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ## What changes were proposed in this pull request? [Spark Coding Style Guide](https://cwiki.apache.org/confluence/display/SPARK/Spark+Code+Style+Guide) has 100-character limit on lines, but it's disabled for Java since 11/09/15. This PR enables **LineLength** checkstyle again. To help that, this also introduces **RedundantImport** and **RedundantModifier**, too. The following is the diff on `checkstyle.xml`. ```xml - <!-- TODO: 11/09/15 disabled - the lengths are currently > 100 in many places --> - <!-- <module name="LineLength"> <property name="max" value="100"/> <property name="ignorePattern" value="^package.*|^import.*|a href|href|http://|https://|ftp://"/> </module> - --> <module name="NoLineWrap"/> <module name="EmptyBlock"> <property name="option" value="TEXT"/> -167,5 +164,7 </module> <module name="CommentsIndentation"/> <module name="UnusedImports"/> + <module name="RedundantImport"/> + <module name="RedundantModifier"/> ``` ## How was this patch tested? Currently, `lint-java` is disabled in Jenkins. It needs a manual test. After passing the Jenkins tests, `dev/lint-java` should passes locally. Author: Dongjoon Hyun <dongjoon@apache.org> Closes #11831 from dongjoon-hyun/SPARK-14011.
* [MINOR][DOC] Fix nits in JavaStreamingTestExampleZheng RuiFeng2016-03-181-9/+11
| | | | | | | | | | | | | | | | | ## What changes were proposed in this pull request? Fix some nits discussed in https://github.com/apache/spark/pull/11776#issuecomment-198207419 use !rdd.isEmpty instead of rdd.count > 0 use static instead of AtomicInteger remove unneeded "throws Exception" ## How was this patch tested? manual tests Author: Zheng RuiFeng <ruifengz@foxmail.com> Closes #11821 from zhengruifeng/je_fix.
* [MINOR][DOC] Add JavaStreamingTestExampleZheng RuiFeng2016-03-171-0/+121
| | | | | | | | | | | | | | ## What changes were proposed in this pull request? Add the java example of StreamingTest ## How was this patch tested? manual tests in CLI: bin/run-example mllib.JavaStreamingTestExample dataDir 5 100 Author: Zheng RuiFeng <ruifengz@foxmail.com> Closes #11776 from zhengruifeng/streaming_je.
* [SPARK-13843][STREAMING] Remove streaming-flume, streaming-mqtt, ↵Shixiong Zhu2016-03-143-394/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | streaming-zeromq, streaming-akka, streaming-twitter to Spark packages ## What changes were proposed in this pull request? Currently there are a few sub-projects, each for integrating with different external sources for Streaming. Now that we have better ability to include external libraries (spark packages) and with Spark 2.0 coming up, we can move the following projects out of Spark to https://github.com/spark-packages - streaming-flume - streaming-akka - streaming-mqtt - streaming-zeromq - streaming-twitter They are just some ancillary packages and considering the overhead of maintenance, running tests and PR failures, it's better to maintain them out of Spark. In addition, these projects can have their different release cycles and we can release them faster. I have already copied these projects to https://github.com/spark-packages ## How was this patch tested? Jenkins tests Author: Shixiong Zhu <shixiong@databricks.com> Closes #11672 from zsxwing/remove-external-pkg.
* [SPARK-13823][CORE][STREAMING][SQL] Always specify Charset in String <-> ↵Sean Owen2016-03-131-1/+3
| | | | | | | | | | | | | | | | | | | | byte[] conversions (and remaining Coverity items) ## What changes were proposed in this pull request? - Fixes calls to `new String(byte[])` or `String.getBytes()` that rely on platform default encoding, to use UTF-8 - Same for `InputStreamReader` and `OutputStreamWriter` constructors - Standardizes on UTF-8 everywhere - Standardizes specifying the encoding with `StandardCharsets.UTF-8`, not the Guava constant or "UTF-8" (which means handling `UnuspportedEncodingException`) - (also addresses the other remaining Coverity scan issues, which are pretty trivial; these are separated into commit https://github.com/srowen/spark/commit/1deecd8d9ca986d8adb1a42d315890ce5349d29c ) ## How was this patch tested? Jenkins tests Author: Sean Owen <sowen@cloudera.com> Closes #11657 from srowen/SPARK-13823.
* [SPARK-13841][SQL] Removes Dataset.collectRows()/takeRows()Cheng Lian2016-03-1313-14/+17
| | | | | | | | | | | | | | ## What changes were proposed in this pull request? This PR removes two methods, `collectRows()` and `takeRows()`, from `Dataset[T]`. These methods were added in PR #11443, and were later considered not useful. ## How was this patch tested? Existing tests should do the work. Author: Cheng Lian <lian@databricks.com> Closes #11678 from liancheng/remove-collect-rows-and-take-rows.
* [SPARK-13817][BUILD][SQL] Re-enable MiMA and removes object DataFrameCheng Lian2016-03-1110-10/+0
| | | | | | | | | | | | | | | | ## What changes were proposed in this pull request? PR #11443 temporarily disabled MiMA check, this PR re-enables it. One extra change is that `object DataFrame` is also removed. The only purpose of introducing `object DataFrame` was to use it as an internal factory for creating `Dataset[Row]`. By replacing this internal factory with `Dataset.newDataFrame`, both `DataFrame` and `DataFrame$` are entirely removed from the API, so that we can simply put a `MissingClassProblem` filter in `MimaExcludes.scala` for most DataFrame API changes. ## How was this patch tested? Tested by MiMA check triggered by Jenkins. Author: Cheng Lian <lian@databricks.com> Closes #11656 from liancheng/re-enable-mima.
* [HOT-FIX][SQL][ML] Fix compile error from use of DataFrame in Java ↵Nick Pentreath2016-03-111-3/+4
| | | | | | | | | | | | | | | | MaxAbsScaler example ## What changes were proposed in this pull request? Fix build failure introduced in #11392 (change `DataFrame` -> `Dataset<Row>`). ## How was this patch tested? Existing build/unit tests Author: Nick Pentreath <nick.pentreath@gmail.com> Closes #11653 from MLnick/java-maxabs-example-fix.
* [SPARK-13512][ML] add example and doc for MaxAbsScalerYuhao Yang2016-03-111-0/+52
| | | | | | | | | | | | | | ## What changes were proposed in this pull request? jira: https://issues.apache.org/jira/browse/SPARK-13512 Add example and doc for ml.feature.MaxAbsScaler. ## How was this patch tested? unit tests Author: Yuhao Yang <hhbyyh@gmail.com> Closes #11392 from hhbyyh/maxabsdoc.
* [SPARK-13244][SQL] Migrates DataFrame to DatasetCheng Lian2016-03-1052-213/+252
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ## What changes were proposed in this pull request? This PR unifies DataFrame and Dataset by migrating existing DataFrame operations to Dataset and make `DataFrame` a type alias of `Dataset[Row]`. Most Scala code changes are source compatible, but Java API is broken as Java knows nothing about Scala type alias (mostly replacing `DataFrame` with `Dataset<Row>`). There are several noticeable API changes related to those returning arrays: 1. `collect`/`take` - Old APIs in class `DataFrame`: ```scala def collect(): Array[Row] def take(n: Int): Array[Row] ``` - New APIs in class `Dataset[T]`: ```scala def collect(): Array[T] def take(n: Int): Array[T] def collectRows(): Array[Row] def takeRows(n: Int): Array[Row] ``` Two specialized methods `collectRows` and `takeRows` are added because Java doesn't support returning generic arrays. Thus, for example, `DataFrame.collect(): Array[T]` actually returns `Object` instead of `Array<T>` from Java side. Normally, Java users may fall back to `collectAsList` and `takeAsList`. The two new specialized versions are added to avoid performance regression in ML related code (but maybe I'm wrong and they are not necessary here). 1. `randomSplit` - Old APIs in class `DataFrame`: ```scala def randomSplit(weights: Array[Double], seed: Long): Array[DataFrame] def randomSplit(weights: Array[Double]): Array[DataFrame] ``` - New APIs in class `Dataset[T]`: ```scala def randomSplit(weights: Array[Double], seed: Long): Array[Dataset[T]] def randomSplit(weights: Array[Double]): Array[Dataset[T]] ``` Similar problem as above, but hasn't been addressed for Java API yet. We can probably add `randomSplitAsList` to fix this one. 1. `groupBy` Some original `DataFrame.groupBy` methods have conflicting signature with original `Dataset.groupBy` methods. To distinguish these two, typed `Dataset.groupBy` methods are renamed to `groupByKey`. Other noticeable changes: 1. Dataset always do eager analysis now We used to support disabling DataFrame eager analysis to help reporting partially analyzed malformed logical plan on analysis failure. However, Dataset encoders requires eager analysi during Dataset construction. To preserve the error reporting feature, `AnalysisException` now takes an extra `Option[LogicalPlan]` argument to hold the partially analyzed plan, so that we can check the plan tree when reporting test failures. This plan is passed by `QueryExecution.assertAnalyzed`. ## How was this patch tested? Existing tests do the work. ## TODO - [ ] Fix all tests - [ ] Re-enable MiMA check - [ ] Update ScalaDoc (`since`, `group`, and example code) Author: Cheng Lian <lian@databricks.com> Author: Yin Huai <yhuai@databricks.com> Author: Wenchen Fan <wenchen@databricks.com> Author: Cheng Lian <liancheng@users.noreply.github.com> Closes #11443 from liancheng/ds-to-df.
* [SPARK-13702][CORE][SQL][MLLIB] Use diamond operator for generic instance ↵Dongjoon Hyun2016-03-0925-42/+40
| | | | | | | | | | | | | | | | | | | | | | | | | creation in Java code. ## What changes were proposed in this pull request? In order to make `docs/examples` (and other related code) more simple/readable/user-friendly, this PR replaces existing codes like the followings by using `diamond` operator. ``` - final ArrayList<Product2<Object, Object>> dataToWrite = - new ArrayList<Product2<Object, Object>>(); + final ArrayList<Product2<Object, Object>> dataToWrite = new ArrayList<>(); ``` Java 7 or higher supports **diamond** operator which replaces the type arguments required to invoke the constructor of a generic class with an empty set of type parameters (<>). Currently, Spark Java code use mixed usage of this. ## How was this patch tested? Manual. Pass the existing tests. Author: Dongjoon Hyun <dongjoon@apache.org> Closes #11541 from dongjoon-hyun/SPARK-13702.
* [SPARK-13692][CORE][SQL] Fix trivial Coverity/Checkstyle defectsDongjoon Hyun2016-03-0922-4/+46
| | | | | | | | | | | | | | | | | | | | | | | | | ## What changes were proposed in this pull request? This issue fixes the following potential bugs and Java coding style detected by Coverity and Checkstyle. - Implement both null and type checking in equals functions. - Fix wrong type casting logic in SimpleJavaBean2.equals. - Add `implement Cloneable` to `UTF8String` and `SortedIterator`. - Remove dereferencing before null check in `AbstractBytesToBytesMapSuite`. - Fix coding style: Add '{}' to single `for` statement in mllib examples. - Remove unused imports in `ColumnarBatch` and `JavaKinesisStreamSuite`. - Remove unused fields in `ChunkFetchIntegrationSuite`. - Add `stop()` to prevent resource leak. Please note that the last two checkstyle errors exist on newly added commits after [SPARK-13583](https://issues.apache.org/jira/browse/SPARK-13583). ## How was this patch tested? manual via `./dev/lint-java` and Coverity site. Author: Dongjoon Hyun <dongjoon@apache.org> Closes #11530 from dongjoon-hyun/SPARK-13692.
* [MINOR] Fix typos in comments and testcase name of codeDongjoon Hyun2016-03-031-1/+1
| | | | | | | | | | | | | | ## What changes were proposed in this pull request? This PR fixes typos in comments and testcase name of code. ## How was this patch tested? manual. Author: Dongjoon Hyun <dongjoon@apache.org> Closes #11481 from dongjoon-hyun/minor_fix_typos_in_code.
* [SPARK-13013][DOCS] Replace example code in mllib-clustering.md using ↵Xin Ren2016-03-034-0/+241
| | | | | | | | | | | | | | | | | | | | | include_example Replace example code in mllib-clustering.md using include_example https://issues.apache.org/jira/browse/SPARK-13013 The example code in the user guide is embedded in the markdown and hence it is not easy to test. It would be nice to automatically test them. This JIRA is to discuss options to automate example code testing and see what we can do in Spark 1.6. Goal is to move actual example code to spark/examples and test compilation in Jenkins builds. Then in the markdown, we can reference part of the code to show in the user guide. This requires adding a Jekyll tag that is similar to https://github.com/jekyll/jekyll/blob/master/lib/jekyll/tags/include.rb, e.g., called include_example. `{% include_example scala/org/apache/spark/examples/mllib/KMeansExample.scala %}` Jekyll will find `examples/src/main/scala/org/apache/spark/examples/mllib/KMeansExample.scala` and pick code blocks marked "example" and replace code block in `{% highlight %}` in the markdown. See more sub-tasks in parent ticket: https://issues.apache.org/jira/browse/SPARK-11337 Author: Xin Ren <iamshrek@126.com> Closes #11116 from keypointt/SPARK-13013.
* [SPARK-13583][CORE][STREAMING] Remove unused imports and add checkstyle ruleDongjoon Hyun2016-03-032-3/+0
| | | | | | | | | | | | | | | | | ## What changes were proposed in this pull request? After SPARK-6990, `dev/lint-java` keeps Java code healthy and helps PR review by saving much time. This issue aims remove unused imports from Java/Scala code and add `UnusedImports` checkstyle rule to help developers. ## How was this patch tested? ``` ./dev/lint-java ./build/sbt compile ``` Author: Dongjoon Hyun <dongjoon@apache.org> Closes #11438 from dongjoon-hyun/SPARK-13583.
* [SPARK-13423][WIP][CORE][SQL][STREAMING] Static analysis fixes for 2.xSean Owen2016-03-031-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | ## What changes were proposed in this pull request? Make some cross-cutting code improvements according to static analysis. These are individually up for discussion since they exist in separate commits that can be reverted. The changes are broadly: - Inner class should be static - Mismatched hashCode/equals - Overflow in compareTo - Unchecked warnings - Misuse of assert, vs junit.assert - get(a) + getOrElse(b) -> getOrElse(a,b) - Array/String .size -> .length (occasionally, -> .isEmpty / .nonEmpty) to avoid implicit conversions - Dead code - tailrec - exists(_ == ) -> contains find + nonEmpty -> exists filter + size -> count - reduce(_+_) -> sum map + flatten -> map The most controversial may be .size -> .length simply because of its size. It is intended to avoid implicits that might be expensive in some places. ## How was the this patch tested? Existing Jenkins unit tests. Author: Sean Owen <sowen@cloudera.com> Closes #11292 from srowen/SPARK-13423.
* [SPARK-13550][ML] Add java example for ml.clustering.BisectingKMeansZheng RuiFeng2016-02-291-0/+81
| | | | | | | | | | | | | | | | | | JIRA: https://issues.apache.org/jira/browse/SPARK-13550 ## What changes were proposed in this pull request? Just add a java example for ml.clustering.BisectingKMeans ## How was this patch tested? manual tests were done. (If this patch involves UI changes, please attach a screenshot; otherwise, remove this) Author: Zheng RuiFeng <ruifengz@foxmail.com> Closes #11428 from zhengruifeng/ml_bkm_je.
* [SPARK-13551][MLLIB] Fix wrong comment and remove meanless lines in ↵Zheng RuiFeng2016-02-291-4/+2
| | | | | | | | | | | | | | | | | | mllib.JavaBisectingKMeansExample JIRA: https://issues.apache.org/jira/browse/SPARK-13551 ## What changes were proposed in this pull request? Fix wrong comment and remove meanless lines in mllib.JavaBisectingKMeansExample ## How was this patch tested? manual test Author: Zheng RuiFeng <ruifengz@foxmail.com> Closes #11429 from zhengruifeng/mllib_bkm_je.
* [SPARK-11381][DOCS] Replace example code in mllib-linear-methods.md using ↵Dongjoon Hyun2016-02-263-0/+255
| | | | | | | | | | | | | | | | | | | | | include_example ## What changes were proposed in this pull request? This PR replaces example codes in `mllib-linear-methods.md` using `include_example` by doing the followings: * Extracts the example codes(Scala,Java,Python) as files in `example` module. * Merges some dialog-style examples into a single file. * Hide redundant codes in HTML for the consistency with other docs. ## How was the this patch tested? manual test. This PR can be tested by document generations, `SKIP_API=1 jekyll build`. Author: Dongjoon Hyun <dongjoon@apache.org> Closes #11320 from dongjoon-hyun/SPARK-11381.
* [SPARK-13012][DOCUMENTATION] Replace example code in ml-guide.md using ↵Devaraj K2016-02-226-0/+488
| | | | | | | | | | include_example Replaced example code in ml-guide.md using include_example Author: Devaraj K <devaraj@apache.org> Closes #11053 from devaraj-kavali/SPARK-13012.
* [SPARK-13016][DOCUMENTATION] Replace example code in ↵Devaraj K2016-02-222-0/+135
| | | | | | | | | | | mllib-dimensionality-reduction.md using include_example Replaced example example code in mllib-dimensionality-reduction.md using include_example Author: Devaraj K <devaraj@apache.org> Closes #11132 from devaraj-kavali/SPARK-13016.
* [SPARK-13248][STREAMING] Remove deprecated Streaming APIs.Luciano Resende2016-02-211-9/+9
| | | | | | | | Remove deprecated Streaming APIs and adjust sample applications. Author: Luciano Resende <lresende@apache.org> Closes #11139 from lresende/streaming-deprecated-apis.
* [SPARK-12247][ML][DOC] Documentation for spark.ml's ALS and collaborative ↵BenFradet2016-02-161-0/+125
| | | | | | | | | | filtering in general This documents the implementation of ALS in `spark.ml` with example code in scala, java and python. Author: BenFradet <benjamin.fradet@gmail.com> Closes #10411 from BenFradet/SPARK-12247.
* [SPARK-3369][CORE][STREAMING] Java mapPartitions Iterator->Iterable is ↵Sean Owen2016-01-2611-41/+44
| | | | | | | | | | | | inconsistent with Scala's Iterator->Iterator Fix Java function API methods for flatMap and mapPartitions to require producing only an Iterator, not Iterable. Also fix DStream.flatMap to require a function producing TraversableOnce only, not Traversable. CC rxin pwendell for API change; tdas since it also touches streaming. Author: Sean Owen <sowen@cloudera.com> Closes #10413 from srowen/SPARK-3369.
* [SPARK-7799][SPARK-12786][STREAMING] Add "streaming-akka" projectShixiong Zhu2016-01-201-5/+9
| | | | | | | | | | | | | Include the following changes: 1. Add "streaming-akka" project and org.apache.spark.streaming.akka.AkkaUtils for creating an actorStream 2. Remove "StreamingContext.actorStream" and "JavaStreamingContext.actorStream" 3. Update the ActorWordCount example and add the JavaActorWordCount example 4. Make "streaming-zeromq" depend on "streaming-akka" and update the codes accordingly Author: Shixiong Zhu <shixiong@databricks.com> Closes #10744 from zsxwing/streaming-akka-2.
* [SPARK-12830] Java style: disallow trailing whitespaces.Reynold Xin2016-01-142-2/+2
| | | | | | Author: Reynold Xin <rxin@databricks.com> Closes #10764 from rxin/SPARK-12830.
* [SPARK-4819] Remove Guava's "Optional" from public APISean Owen2016-01-081-12/+8
| | | | | | | | | | Replace Guava `Optional` with (an API clone of) Java 8 `java.util.Optional` (edit: and a clone of Guava `Optional`) See also https://github.com/apache/spark/pull/10512 Author: Sean Owen <sowen@cloudera.com> Closes #10513 from srowen/SPARK-4819.
* [SPARK-12618][CORE][STREAMING][SQL] Clean up build warnings: 2.0.0 editionSean Owen2016-01-085-37/+41
| | | | | | | | Fix most build warnings: mostly deprecated API usages. I'll annotate some of the changes below. CC rxin who is leading the charge to remove the deprecated APIs. Author: Sean Owen <sowen@cloudera.com> Closes #10570 from srowen/SPARK-12618.
* [SPARK-12510][STREAMING] Refactor ActorReceiver to support JavaShixiong Zhu2016-01-071-0/+137
| | | | | | | | | | | | | This PR includes the following changes: 1. Rename `ActorReceiver` to `ActorReceiverSupervisor` 2. Remove `ActorHelper` 3. Add a new `ActorReceiver` for Scala and `JavaActorReceiver` for Java 4. Add `JavaActorWordCount` example Author: Shixiong Zhu <shixiong@databricks.com> Closes #10457 from zsxwing/java-actor-stream.
* [SPARK-12615] Remove some deprecated APIs in RDD/SparkContextReynold Xin2016-01-051-6/+6
| | | | | | | | I looked at each case individually and it looks like they can all be removed. The only one that I had to think twice was toArray (I even thought about un-deprecating it, until I realized it was a problem in Java to have toArray returning java.util.List). Author: Reynold Xin <rxin@databricks.com> Closes #10569 from rxin/SPARK-12615.
* [SPARK-12429][STREAMING][DOC] Add Accumulator and Broadcast example for ↵Shixiong Zhu2015-12-221-4/+67
| | | | | | | | | | Streaming This PR adds Scala, Java and Python examples to show how to use Accumulator and Broadcast in Spark Streaming to support checkpointing. Author: Shixiong Zhu <shixiong@databricks.com> Closes #10385 from zsxwing/accumulator-broadcast-example.
* [SPARK-9057][STREAMING] Twitter example joining to static RDD of word ↵Jeff L2015-12-181-0/+180
| | | | | | | | | | sentiment values Example of joining a static RDD of word sentiments to a streaming RDD of Tweets in order to demo the usage of the transform() method. Author: Jeff L <sha0lin@alumni.carnegiemellon.edu> Closes #8431 from Agent007/SPARK-9057.
* [SPARK-6518][MLLIB][EXAMPLE][DOC] Add example code and user guide for ↵Yu ISHIKAWA2015-12-161-0/+69
| | | | | | | | | | | bisecting k-means This PR includes only an example code in order to finish it quickly. I'll send another PR for the docs soon. Author: Yu ISHIKAWA <yuu.ishikawa@gmail.com> Closes #9952 from yu-iskw/SPARK-6518.
* [SPARK-12215][ML][DOC] User guide section for KMeans in spark.mlYu ISHIKAWA2015-12-161-2/+6
| | | | | | | | cc jkbradley Author: Yu ISHIKAWA <yuu.ishikawa@gmail.com> Closes #10244 from yu-iskw/SPARK-12215.
* [MINOR][ML] Rename weights to coefficients for examples/DeveloperApiExampleYanbo Liang2015-12-151-11/+11
| | | | | | | | | | Rename ```weights``` to ```coefficients``` for examples/DeveloperApiExample. cc mengxr jkbradley Author: Yanbo Liang <ybliang8@gmail.com> Closes #10280 from yanboliang/spark-coefficients.
* [SPARK-12199][DOC] Follow-up: Refine example code in ml-features.mdXusen Yin2015-12-121-1/+1
| | | | | | | | | | | | https://issues.apache.org/jira/browse/SPARK-12199 Follow-up PR of SPARK-11551. Fix some errors in ml-features.md mengxr Author: Xusen Yin <yinxusen@gmail.com> Closes #10193 from yinxusen/SPARK-12199.
* [SPARK-12244][SPARK-12245][STREAMING] Rename trackStateByKey to mapWithState ↵Tathagata Das2015-12-091-8/+8
| | | | | | | | | | | | | | | | | | | and change tracking function signature SPARK-12244: Based on feedback from early users and personal experience attempting to explain it, the name trackStateByKey had two problem. "trackState" is a completely new term which really does not give any intuition on what the operation is the resultant data stream of objects returned by the function is called in docs as the "emitted" data for the lack of a better. "mapWithState" makes sense because the API is like a mapping function like (Key, Value) => T with State as an additional parameter. The resultant data stream is "mapped data". So both problems are solved. SPARK-12245: From initial experiences, not having the key in the function makes it hard to return mapped stuff, as the whole information of the records is not there. Basically the user is restricted to doing something like mapValue() instead of map(). So adding the key as a parameter. Author: Tathagata Das <tathagata.das1565@gmail.com> Closes #10224 from tdas/rename.
* [SPARK-11551][DOC] Replace example code in ml-features.md using include_exampleXusen Yin2015-12-0918-0/+1205
| | | | | | | | | PR on behalf of somideshmukh, thanks! Author: Xusen Yin <yinxusen@gmail.com> Author: somideshmukh <somilde@us.ibm.com> Closes #10219 from yinxusen/SPARK-11551.
* [SPARK-12159][ML] Add user guide section for IndexToString transformerBenFradet2015-12-081-0/+75
| | | | | | | | Documentation regarding the `IndexToString` label transformer with code snippets in Scala/Java/Python. Author: BenFradet <benjamin.fradet@gmail.com> Closes #10166 from BenFradet/SPARK-12159.
* [SPARK-11551][DOC][EXAMPLE] Revert PR #10002Cheng Lian2015-12-0818-1198/+0
| | | | | | | | | | This reverts PR #10002, commit 78209b0ccaf3f22b5e2345dfb2b98edfdb746819. The original PR wasn't tested on Jenkins before being merged. Author: Cheng Lian <lian@databricks.com> Closes #10200 from liancheng/revert-pr-10002.
* [SPARK-11958][SPARK-11957][ML][DOC] SQLTransformer user guide and example codeYanbo Liang2015-12-071-0/+59
| | | | | | | | Add ```SQLTransformer``` user guide, example code and make Scala API doc more clear. Author: Yanbo Liang <ybliang8@gmail.com> Closes #10006 from yanboliang/spark-11958.
* [SPARK-11551][DOC][EXAMPLE] Replace example code in ml-features.md using ↵somideshmukh2015-12-0718-0/+1198
| | | | | | | | | | | | | include_example Made new patch contaning only markdown examples moved to exmaple/folder. Ony three java code were not shfted since they were contaning compliation error ,these classes are 1)StandardScale 2)NormalizerExample 3)VectorIndexer Author: Xusen Yin <yinxusen@gmail.com> Author: somideshmukh <somilde@us.ibm.com> Closes #10002 from somideshmukh/SomilBranch1.33.
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