[GitHub] spark issue #15097: [SPARK-17540][SparkR][Spark Core] fix SparkR array serde...

2016-10-08 Thread WeichenXu123
Github user WeichenXu123 commented on the issue:

https://github.com/apache/spark/pull/15097
  
@felixcheung 
it is the case when r-side pass an empty array and scala-side parameter 
type is Array[T] then there is some problem (as the TODO described in 
serialize.R: 166 line)...but passing an empty array as an parameter is rarely 
used, so I consider close this PR for now, thanks!


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[GitHub] spark issue #15097: [SPARK-17540][SparkR][Spark Core] fix SparkR array serde...

2016-09-25 Thread felixcheung
Github user felixcheung commented on the issue:

https://github.com/apache/spark/pull/15097
  
@WeichenXu123 do you have the user code and sample data that when run with 
SparkR will cause this issue? I think that will help us understand how this 
happens better.



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[GitHub] spark issue #15097: [SPARK-17540][SparkR][Spark Core] fix SparkR array serde...

2016-09-25 Thread WeichenXu123
Github user WeichenXu123 commented on the issue:

https://github.com/apache/spark/pull/15097
  
@felixcheung
I think out two ways for this problem, see the PR description.
which is better in your opinion?
Or whether it exists better solution? 


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[GitHub] spark issue #15097: [SPARK-17540][SparkR][Spark Core] fix SparkR array serde...

2016-09-18 Thread HyukjinKwon
Github user HyukjinKwon commented on the issue:

https://github.com/apache/spark/pull/15097
  
+1 for adding tests.


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[GitHub] spark issue #15097: [SPARK-17540][SparkR][Spark Core] fix SparkR array serde...

2016-09-17 Thread felixcheung
Github user felixcheung commented on the issue:

https://github.com/apache/spark/pull/15097
  
Please add tests for this?


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[GitHub] spark issue #15097: [SPARK-17540][SparkR][Spark Core] fix SparkR array serde...

2016-09-14 Thread WeichenXu123
Github user WeichenXu123 commented on the issue:

https://github.com/apache/spark/pull/15097
  
@shivaram 
Oh...I found this way still has problems, Array[Nothing] in scala, after 
compiling with type erasing, at last it turned into type `Ljava.lang.object`, 
but primitive type Array such as Array[Int] after compile turned into `[I` so 
the two type still not compatible...

Now I am thinking about another way, when R-side we pass an array with zero 
length, scala/java side regard it as `null` value, so it can be assigned to any 
type parameter.

A typical scenario of this problem is, we want to pass an array type 
parameter from R-side, but sometime we only want to pass `null` array to 
indicate we want to use the default parameter value.


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[GitHub] spark issue #15097: [SPARK-17540][SparkR][Spark Core] fix SparkR array serde...

2016-09-14 Thread AmplabJenkins
Github user AmplabJenkins commented on the issue:

https://github.com/apache/spark/pull/15097
  
Test FAILed.
Refer to this link for build results (access rights to CI server needed): 
https://amplab.cs.berkeley.edu/jenkins//job/SparkPullRequestBuilder/65376/
Test FAILed.


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[GitHub] spark issue #15097: [SPARK-17540][SparkR][Spark Core] fix SparkR array serde...

2016-09-14 Thread AmplabJenkins
Github user AmplabJenkins commented on the issue:

https://github.com/apache/spark/pull/15097
  
Merged build finished. Test FAILed.


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[GitHub] spark issue #15097: [SPARK-17540][SparkR][Spark Core] fix SparkR array serde...

2016-09-14 Thread SparkQA
Github user SparkQA commented on the issue:

https://github.com/apache/spark/pull/15097
  
**[Test build #65376 has 
finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/65376/consoleFull)**
 for PR 15097 at commit 
[`08e011f`](https://github.com/apache/spark/commit/08e011f1d38682dcedc93f4ef8b038ee13fbe5cb).
 * This patch **fails Spark unit tests**.
 * This patch merges cleanly.
 * This patch adds no public classes.


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[GitHub] spark issue #15097: [SPARK-17540][SparkR][Spark Core] fix SparkR array serde...

2016-09-14 Thread shivaram
Github user shivaram commented on the issue:

https://github.com/apache/spark/pull/15097
  
Thanks @WeichenXu123 Can we add some test cases for this ? Also was this 
fix related to any problem you saw ? If so we can also include that in the test 
cases etc.


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[GitHub] spark issue #15097: [SPARK-17540][SparkR][Spark Core] fix SparkR array serde...

2016-09-14 Thread SparkQA
Github user SparkQA commented on the issue:

https://github.com/apache/spark/pull/15097
  
**[Test build #65376 has 
started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/65376/consoleFull)**
 for PR 15097 at commit 
[`08e011f`](https://github.com/apache/spark/commit/08e011f1d38682dcedc93f4ef8b038ee13fbe5cb).


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