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26 commits

Author SHA1 Message Date
Felix Cheung 888b84abe8 [SPARK-20704][SPARKR] change CRAN test to run single thread
## What changes were proposed in this pull request?

- [x] need to test by running R CMD check --as-cran
- [x] sanity check vignettes

## How was this patch tested?

Jenkins

Author: Felix Cheung <felixcheung_m@hotmail.com>

Closes #17945 from felixcheung/rchangesforpackage.
2017-05-11 23:10:04 -07:00
Felix Cheung fc472bddd1 [SPARK-20543][SPARKR] skip tests when running on CRAN
## What changes were proposed in this pull request?

General rule on skip or not:
skip if
- RDD tests
- tests could run long or complicated (streaming, hivecontext)
- tests on error conditions
- tests won't likely change/break

## How was this patch tested?

unit tests, `R CMD check --as-cran`, `R CMD check`

Author: Felix Cheung <felixcheung_m@hotmail.com>

Closes #17817 from felixcheung/rskiptest.
2017-05-03 21:40:18 -07:00
zero323 80e9cf1b59 [SPARK-20490][SPARKR] Add R wrappers for eqNullSafe and ! / not
## What changes were proposed in this pull request?

- Add null-safe equality operator `%<=>%` (sames as `o.a.s.sql.Column.eqNullSafe`, `o.a.s.sql.Column.<=>`)
- Add boolean negation operator `!` and function `not `.

## How was this patch tested?

Existing unit tests, additional unit tests, `check-cran.sh`.

Author: zero323 <zero323@users.noreply.github.com>

Closes #17783 from zero323/SPARK-20490.
2017-04-30 22:07:12 -07:00
Yanbo Liang 478fbc866f [SPARK-19925][SPARKR] Fix SparkR spark.getSparkFiles fails when it was called on executors.
## What changes were proposed in this pull request?
SparkR ```spark.getSparkFiles``` fails when it was called on executors, see details at [SPARK-19925](https://issues.apache.org/jira/browse/SPARK-19925).

## How was this patch tested?
Add unit tests, and verify this fix at standalone and yarn cluster.

Author: Yanbo Liang <ybliang8@gmail.com>

Closes #17274 from yanboliang/spark-19925.
2017-03-21 21:50:54 -07:00
Yanbo Liang 93c743f1ac [SPARK-17577][FOLLOW-UP][SPARKR] SparkR spark.addFile supports adding directory recursively
## What changes were proposed in this pull request?
#15140 exposed ```JavaSparkContext.addFile(path: String, recursive: Boolean)``` to Python/R, then we can update SparkR ```spark.addFile``` to support adding directory recursively.

## How was this patch tested?
Added unit test.

Author: Yanbo Liang <ybliang8@gmail.com>

Closes #15216 from yanboliang/spark-17577-2.
2016-09-26 16:47:57 -07:00
Yanbo Liang c133907c5d [SPARK-17577][SPARKR][CORE] SparkR support add files to Spark job and get by executors
## What changes were proposed in this pull request?
Scala/Python users can add files to Spark job by submit options ```--files``` or ```SparkContext.addFile()```. Meanwhile, users can get the added file by ```SparkFiles.get(filename)```.
We should also support this function for SparkR users, since they also have the requirements for some shared dependency files. For example, SparkR users can download third party R packages to driver firstly, add these files to the Spark job as dependency by this API and then each executor can install these packages by ```install.packages```.

## How was this patch tested?
Add unit test.

Author: Yanbo Liang <ybliang8@gmail.com>

Closes #15131 from yanboliang/spark-17577.
2016-09-21 20:08:28 -07:00
Felix Cheung c34b546d67 [SPARK-16519][SPARKR] Handle SparkR RDD generics that create warnings in R CMD check
## What changes were proposed in this pull request?

Rename RDD functions for now to avoid CRAN check warnings.
Some RDD functions are sharing generics with DataFrame functions (hence the problem) so after the renames we need to add new generics, for now.

## How was this patch tested?

unit tests

Author: Felix Cheung <felixcheung_m@hotmail.com>

Closes #14626 from felixcheung/rrddfunctions.
2016-08-16 11:19:18 -07:00
Felix Cheung d27fe9ba67 [SPARK-16027][SPARKR] Fix R tests SparkSession init/stop
## What changes were proposed in this pull request?

Fix R SparkSession init/stop, and warnings of reusing existing Spark Context

## How was this patch tested?

unit tests

shivaram

Author: Felix Cheung <felixcheung_m@hotmail.com>

Closes #14177 from felixcheung/rsessiontest.
2016-07-17 19:02:21 -07:00
Felix Cheung b5a997667f [SPARK-16088][SPARKR] update setJobGroup, cancelJobGroup, clearJobGroup
## What changes were proposed in this pull request?

Updated setJobGroup, cancelJobGroup, clearJobGroup to not require sc/SparkContext as parameter.
Also updated roxygen2 doc and R programming guide on deprecations.

## How was this patch tested?

unit tests

Author: Felix Cheung <felixcheung_m@hotmail.com>

Closes #13838 from felixcheung/rjobgroup.
2016-06-23 09:45:01 -07:00
Felix Cheung dbfdae4e41 [SPARK-16096][SPARKR] add union and deprecate unionAll
## What changes were proposed in this pull request?

add union and deprecate unionAll, separate roxygen2 doc for rbind (since their usage and parameter lists are quite different)

`explode` is also deprecated - but seems like replacement is a combination of calls; not sure if we should deprecate it in SparkR, yet.

## How was this patch tested?

unit tests, manual checks for r doc

Author: Felix Cheung <felixcheung_m@hotmail.com>

Closes #13805 from felixcheung/runion.
2016-06-21 13:36:50 -07:00
Felix Cheung 46d98e0a1f [SPARK-16028][SPARKR] spark.lapply can work with active context
## What changes were proposed in this pull request?

spark.lapply and setLogLevel

## How was this patch tested?

unit test

shivaram thunterdb

Author: Felix Cheung <felixcheung_m@hotmail.com>

Closes #13752 from felixcheung/rlapply.
2016-06-20 12:08:42 -07:00
Felix Cheung 8c198e246d [SPARK-15159][SPARKR] SparkR SparkSession API
## What changes were proposed in this pull request?

This PR introduces the new SparkSession API for SparkR.
`sparkR.session.getOrCreate()` and `sparkR.session.stop()`

"getOrCreate" is a bit unusual in R but it's important to name this clearly.

SparkR implementation should
- SparkSession is the main entrypoint (vs SparkContext; due to limited functionality supported with SparkContext in SparkR)
- SparkSession replaces SQLContext and HiveContext (both a wrapper around SparkSession, and because of API changes, supporting all 3 would be a lot more work)
- Changes to SparkSession is mostly transparent to users due to SPARK-10903
- Full backward compatibility is expected - users should be able to initialize everything just in Spark 1.6.1 (`sparkR.init()`), but with deprecation warning
- Mostly cosmetic changes to parameter list - users should be able to move to `sparkR.session.getOrCreate()` easily
- An advanced syntax with named parameters (aka varargs aka "...") is supported; that should be closer to the Builder syntax that is in Scala/Python (which unfortunately does not work in R because it will look like this: `enableHiveSupport(config(config(master(appName(builder(), "foo"), "local"), "first", "value"), "next, "value"))`
- Updating config on an existing SparkSession is supported, the behavior is the same as Python, in which config is applied to both SparkContext and SparkSession
- Some SparkSession changes are not matched in SparkR, mostly because it would be breaking API change: `catalog` object, `createOrReplaceTempView`
- Other SQLContext workarounds are replicated in SparkR, eg. `tables`, `tableNames`
- `sparkR` shell is updated to use the SparkSession entrypoint (`sqlContext` is removed, just like with Scale/Python)
- All tests are updated to use the SparkSession entrypoint
- A bug in `read.jdbc` is fixed

TODO
- [x] Add more tests
- [ ] Separate PR - update all roxygen2 doc coding example
- [ ] Separate PR - update SparkR programming guide

## How was this patch tested?

unit tests, manual tests

shivaram sun-rui rxin

Author: Felix Cheung <felixcheung_m@hotmail.com>
Author: felixcheung <felixcheung_m@hotmail.com>

Closes #13635 from felixcheung/rsparksession.
2016-06-17 21:36:01 -07:00
Felix Cheung d30b7e6696 [SPARK-15637][SPARK-15931][SPARKR] Fix R masked functions checks
## What changes were proposed in this pull request?

Because of the fix in SPARK-15684, this exclusion is no longer necessary.

## How was this patch tested?

unit tests

shivaram

Author: Felix Cheung <felixcheung_m@hotmail.com>

Closes #13636 from felixcheung/rendswith.
2016-06-15 10:29:07 -07:00
felixcheung 74c1b79f3f [SPARK-15637][SPARKR] fix R tests on R 3.2.2
## What changes were proposed in this pull request?

Change version check in R tests

## How was this patch tested?

R tests
shivaram

Author: felixcheung <felixcheung_m@hotmail.com>

Closes #13369 from felixcheung/rversioncheck.
2016-05-28 10:32:40 -07:00
hyukjinkwon 1c403733b8 [SPARK-8603][SPARKR] Use shell() instead of system2() for SparkR on Windows
## What changes were proposed in this pull request?

This PR corrects SparkR to use `shell()` instead of `system2()` on Windows.

Using `system2(...)` on Windows does not process windows file separator `\`. `shell(tralsate = TRUE, ...)` can treat this problem. So, this was changed to be chosen according to OS.

Existing tests were failed on Windows due to this problem. For example, those were failed.

  ```
8. Failure: sparkJars tag in SparkContext (test_includeJAR.R#34)
9. Failure: sparkJars tag in SparkContext (test_includeJAR.R#36)
```

The cases above were due to using of `system2`.

In addition, this PR also fixes some tests failed on Windows.

  ```
5. Failure: sparkJars sparkPackages as comma-separated strings (test_context.R#128)
6. Failure: sparkJars sparkPackages as comma-separated strings (test_context.R#131)
7. Failure: sparkJars sparkPackages as comma-separated strings (test_context.R#134)
```

  The cases above were due to a weird behaviour of `normalizePath()`. On Linux, if the path does not exist, it just prints out the input but it prints out including the current path on Windows.

  ```r
# On Linus
path <- normalizePath("aa")
print(path)
[1] "aa"

# On Windows
path <- normalizePath("aa")
print(path)
[1] "C:\\Users\\aa"
```

## How was this patch tested?

Jenkins tests and manually tested in a Window machine as below:

Here is the [stdout](https://gist.github.com/HyukjinKwon/4bf35184f3a30f3bce987a58ec2bbbab) of testing.

Closes #7025

Author: hyukjinkwon <gurwls223@gmail.com>
Author: Hyukjin Kwon <gurwls223@gmail.com>
Author: Prakash PC <prakash.chinnu@gmail.com>

Closes #13165 from HyukjinKwon/pr/7025.
2016-05-26 20:55:06 -07:00
felixcheung c76457c8e4 [SPARK-10903][SPARKR] R - Simplify SQLContext method signatures and use a singleton
Eliminate the need to pass sqlContext to method since it is a singleton - and we don't want to support multiple contexts in a R session.

Changes are done in a back compat way with deprecation warning added. Method signature for S3 methods are added in a concise, clean approach such that in the next release the deprecated signature can be taken out easily/cleanly (just delete a few lines per method).

Custom method dispatch is implemented to allow for multiple JVM reference types that are all 'jobj' in R and to avoid having to add 30 new exports.

Author: felixcheung <felixcheung_m@hotmail.com>

Closes #9192 from felixcheung/rsqlcontext.
2016-05-26 11:20:20 -07:00
wm624@hotmail.com 06bae8af17 [SPARK-15439][SPARKR] Failed to run unit test in SparkR
## What changes were proposed in this pull request?

(Please fill in changes proposed in this fix)
There are some failures when running SparkR unit tests.
In this PR, I fixed two of these failures in test_context.R and test_sparkSQL.R
The first one is due to different masked name. I added missed names in the expected arrays.
The second one is because one PR removed the logic of a previous fix of missing subset method.

The file privilege issue is still there. I am debugging it. SparkR shell can run the test case successfully.
test_that("pipeRDD() on RDDs", {
  actual <- collect(pipeRDD(rdd, "more"))
When using run-test script, it complains no such directories as below:
cannot open file '/tmp/Rtmp4FQbah/filee2273f9d47f7': No such file or directory

## How was this patch tested?

(Please explain how this patch was tested. E.g. unit tests, integration tests, manual tests)
Manually test it

Author: wm624@hotmail.com <wm624@hotmail.com>

Closes #13284 from wangmiao1981/R.
2016-05-25 21:08:03 -07:00
Sun Rui 8b6491fc0b [SPARK-15091][SPARKR] Fix warnings and a failure in SparkR test cases with testthat version 1.0.1
## What changes were proposed in this pull request?
Fix warnings and a failure in SparkR test cases with testthat version 1.0.1

## How was this patch tested?
SparkR unit test cases.

Author: Sun Rui <sunrui2016@gmail.com>

Closes #12867 from sun-rui/SPARK-15091.
2016-05-03 09:29:49 -07:00
Timothy Hunter 769a909d13 [SPARK-7264][ML] Parallel lapply for sparkR
## What changes were proposed in this pull request?

This PR adds a new function in SparkR called `sparkLapply(list, function)`. This function implements a distributed version of `lapply` using Spark as a backend.

TODO:
 - [x] check documentation
 - [ ] check tests

Trivial example in SparkR:

```R
sparkLapply(1:5, function(x) { 2 * x })
```

Output:

```
[[1]]
[1] 2

[[2]]
[1] 4

[[3]]
[1] 6

[[4]]
[1] 8

[[5]]
[1] 10
```

Here is a slightly more complex example to perform distributed training of multiple models. Under the hood, Spark broadcasts the dataset.

```R
library("MASS")
data(menarche)
families <- c("gaussian", "poisson")
train <- function(family){glm(Menarche ~ Age  , family=family, data=menarche)}
results <- sparkLapply(families, train)
```

## How was this patch tested?

This PR was tested in SparkR. I am unfamiliar with R and SparkR, so any feedback on style, testing, etc. will be much appreciated.

cc falaki davies

Author: Timothy Hunter <timhunter@databricks.com>

Closes #12426 from thunterdb/7264.
2016-04-28 22:42:48 -07:00
Dongjoon Hyun 411454475a [SPARK-14780] [R] Add setLogLevel to SparkR
## What changes were proposed in this pull request?

This PR aims to add `setLogLevel` function to SparkR shell.

**Spark Shell**
```scala
scala> sc.setLogLevel("ERROR")
```

**PySpark**
```python
>>> sc.setLogLevel("ERROR")
```

**SparkR (this PR)**
```r
> setLogLevel(sc, "ERROR")
NULL
```

## How was this patch tested?

Pass the Jenkins tests including a new R testcase.

Author: Dongjoon Hyun <dongjoon@apache.org>

Closes #12547 from dongjoon-hyun/SPARK-14780.
2016-04-21 16:09:50 -07:00
Sun Rui 8eedf0b553 [SPARK-13905][SPARKR] Change signature of as.data.frame() to be consistent with the R base package.
## What changes were proposed in this pull request?

Change the signature of as.data.frame() to be consistent with that in the R base package to meet R user's convention.

## How was this patch tested?
dev/lint-r
SparkR unit tests

Author: Sun Rui <rui.sun@intel.com>

Closes #11811 from sun-rui/SPARK-13905.
2016-04-19 19:57:03 -07:00
Burak Yavuz 1146c534d6 [SPARK-14353] Dataset Time Window window API for R
## What changes were proposed in this pull request?

The `window` function was added to Dataset with [this PR](https://github.com/apache/spark/pull/12008).
This PR adds the R API for this function.

With this PR, SQL, Java, and Scala will share the same APIs as in users can use:
 - `window(timeColumn, windowDuration)`
 - `window(timeColumn, windowDuration, slideDuration)`
 - `window(timeColumn, windowDuration, slideDuration, startTime)`

In Python and R, users can access all APIs above, but in addition they can do
 - In R:
   `window(timeColumn, windowDuration, startTime=...)`

that is, they can provide the startTime without providing the `slideDuration`. In this case, we will generate tumbling windows.

## How was this patch tested?

Unit tests + manual tests

Author: Burak Yavuz <brkyvz@gmail.com>

Closes #12141 from brkyvz/R-windows.
2016-04-05 17:21:41 -07:00
Sun Rui 1b2a918e59 [SPARK-12204][SPARKR] Implement drop method for DataFrame in SparkR.
Author: Sun Rui <rui.sun@intel.com>

Closes #10201 from sun-rui/SPARK-12204.
2016-01-20 21:08:15 -08:00
felixcheung 488bbb216c [SPARK-12232][SPARKR] New R API for read.table to avoid name conflict
shivaram sorry it took longer to fix some conflicts, this is the change to add an alias for `table`

Author: felixcheung <felixcheung_m@hotmail.com>

Closes #10406 from felixcheung/readtable.
2016-01-19 18:31:03 -08:00
felixcheung 37fefa66cb [SPARK-12168][SPARKR] Add automated tests for conflicted function in R
Currently this is reported when loading the SparkR package in R (probably would add is.nan)
```
Loading required package: methods

Attaching package: ‘SparkR’

The following objects are masked from ‘package:stats’:

    cov, filter, lag, na.omit, predict, sd, var

The following objects are masked from ‘package:base’:

    colnames, colnames<-, intersect, rank, rbind, sample, subset,
    summary, table, transform
```

Adding this test adds an automated way to track changes to masked method.
Also, the second part of this test check for those functions that would not be accessible without namespace/package prefix.

Incidentally, this might point to how we would fix those inaccessible functions in base or stats.
Looking for feedback for adding this test.

Author: felixcheung <felixcheung_m@hotmail.com>

Closes #10171 from felixcheung/rmaskedtest.
2016-01-19 16:33:48 -08:00
Sun Rui 39d677c8f1 [SPARK-12034][SPARKR] Eliminate warnings in SparkR test cases.
This PR:
1. Suppress all known warnings.
2. Cleanup test cases and fix some errors in test cases.
3. Fix errors in HiveContext related test cases. These test cases are actually not run previously due to a bug of creating TestHiveContext.
4. Support 'testthat' package version 0.11.0 which prefers that test cases be under 'tests/testthat'
5. Make sure the default Hadoop file system is local when running test cases.
6. Turn on warnings into errors.

Author: Sun Rui <rui.sun@intel.com>

Closes #10030 from sun-rui/SPARK-12034.
2015-12-07 10:38:17 -08:00
Renamed from R/pkg/inst/tests/test_context.R (Browse further)