[GitHub] spark issue #23012: [SPARK-26014][R] Deprecate R prior to version 3.4 in Spa...

2018-11-15 Thread HyukjinKwon
Github user HyukjinKwon commented on the issue:

https://github.com/apache/spark/pull/23012
  
Merged to master.

Thanks @felixcheung.


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[GitHub] spark issue #23012: [SPARK-26014][R] Deprecate R prior to version 3.4 in Spa...

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[GitHub] spark issue #23012: [SPARK-26014][R] Deprecate R prior to version 3.4 in Spa...

2018-11-14 Thread HyukjinKwon
Github user HyukjinKwon commented on the issue:

https://github.com/apache/spark/pull/23012
  
Yup, will address the other comments and update the PR accordingly.


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[GitHub] spark issue #23012: [SPARK-26014][R] Deprecate R prior to version 3.4 in Spa...

2018-11-14 Thread shaneknapp
Github user shaneknapp commented on the issue:

https://github.com/apache/spark/pull/23012
  
@felixcheung @HyukjinKwon 

yes:  deprecation in this case means we test against R-3.1.1


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[GitHub] spark issue #23012: [SPARK-26014][R] Deprecate R prior to version 3.4 in Spa...

2018-11-14 Thread felixcheung
Github user felixcheung commented on the issue:

https://github.com/apache/spark/pull/23012
  
Yea there are some problem with some packages we depend on that are not 
installable from CRAN (eg too old) so it will be hard to a new version of R and 
new installation.

So to clarify, depreciation as is we still test on R 3.1?





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[GitHub] spark issue #23012: [SPARK-26014][R] Deprecate R prior to version 3.4 in Spa...

2018-11-13 Thread HyukjinKwon
Github user HyukjinKwon commented on the issue:

https://github.com/apache/spark/pull/23012
  
Ah .. right makes sense to me. Thanks @shaneknapp. +1


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[GitHub] spark issue #23012: [SPARK-26014][R] Deprecate R prior to version 3.4 in Spa...

2018-11-13 Thread shaneknapp
Github user shaneknapp commented on the issue:

https://github.com/apache/spark/pull/23012
  
TL;DR:  let's go w/deprecation.

still TL;DR:  if i never have to install or manage R again, i will be a 
happy person!

@HyukjinKwon upgrading R is easy.  getting the right mix of R and all of 
the associated packages working "as expected" is a nightmare.

the biggest problem i foresee is if we upgrade R (and all other packages) 
on the workers, every version of spark will be tested against this...  and 
there will be bugs, test failures, and other time consuming (and obtuse) 
problems to debug.  multiply this by every branch, and you can see the rabbit 
hole you've just entered.

for example, a month ago when i finally had time to dive back in to the 
ubuntu port, after finally figuring out how to install R+friends on ubuntu in 
an identical way to the centos workers, i STILL was finding problems w/lintr 
(see:  https://github.com/apache/spark/pull/22896).

anyways:  i'm more than happy to upgrade R and all the packages to 
something much more recent, but i will definitely appreciate some help in the 
game of test-failure whack-a-mole.


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[GitHub] spark issue #23012: [SPARK-26014][R] Deprecate R prior to version 3.4 in Spa...

2018-11-13 Thread HyukjinKwon
Github user HyukjinKwon commented on the issue:

https://github.com/apache/spark/pull/23012
  
@shaneknapp, do you roughly know how difficult it is (and do you have some 
time shortly) to upgrade R from 3.1 to 3.4? I am asking this because I had some 
difficulties when I tried to manually upgrade from a certain low version to 
another non-latest version.

If it's expected to take a while, let's go deprecation step.
If that's expected to be less difficult, let's go saying unsupporting way.

Does this sound okay to you @felixcheung?


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[GitHub] spark issue #23012: [SPARK-26014][R] Deprecate R prior to version 3.4 in Spa...

2018-11-13 Thread felixcheung
Github user felixcheung commented on the issue:

https://github.com/apache/spark/pull/23012
  
Hey shane I don’t think we are saying to test multiple R version at all. 
In fact quite the opposite, just the new(er) version at some point in the 
future.

(We don’t have a better solution for packages though. There’s another 
PR for R arrow package for example)



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[GitHub] spark issue #23012: [SPARK-26014][R] Deprecate R prior to version 3.4 in Spa...

2018-11-13 Thread shaneknapp
Github user shaneknapp commented on the issue:

https://github.com/apache/spark/pull/23012
  
howdy howdy!

unless we dockerize spark builds (someday!), we're going to be stuck 
w/testing against one version of R on the jenkins workers...   i've been 
looking in to packrat to help manage packages, but having more than one version 
of R will require me manually building and disting it out.  and i really, 
truly, don't want to do that.

let me know how you think i should proceed.


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[GitHub] spark issue #23012: [SPARK-26014][R] Deprecate R prior to version 3.4 in Spa...

2018-11-13 Thread felixcheung
Github user felixcheung commented on the issue:

https://github.com/apache/spark/pull/23012
  
I think it's easier to say unsupported if we are not testing it in jenkins 
or appveyer. I don't know if we any coverage at release for older R version 
anyway, so it's better to unsupported then deprecate. 

but agree maybe the way to do this is deprecate without updating R in 
jenkins


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[GitHub] spark issue #23012: [SPARK-26014][R] Deprecate R prior to version 3.4 in Spa...

2018-11-12 Thread HyukjinKwon
Github user HyukjinKwon commented on the issue:

https://github.com/apache/spark/pull/23012
  
In this way, we could postpone R upgrade after Spark 3.0.0 release in 
Jenkins, and could still test the deprecated R version 3.1.


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[GitHub] spark issue #23012: [SPARK-26014][R] Deprecate R prior to version 3.4 in Spa...

2018-11-12 Thread HyukjinKwon
Github user HyukjinKwon commented on the issue:

https://github.com/apache/spark/pull/23012
  
Nice. Thanks!. BTW Felix, are you maybe worrying about that we happen to 
upgrade R version in Jenkins to 3.4 and .. we could break lower deprecated R 
version support in Spark 3.0 I guess?

If so, let me put the version check into both places `generic.R` and 
`shell.R`. In this way, both shell and submit still show the errors but the 
tests will pass.


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[GitHub] spark issue #23012: [SPARK-26014][R] Deprecate R prior to version 3.4 in Spa...

2018-11-12 Thread felixcheung
Github user felixcheung commented on the issue:

https://github.com/apache/spark/pull/23012
  
FYI
This is unused code I’m going to remove it

https://github.com/apache/spark/blob/master/R/pkg/src-native/string_hash_code.c





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[GitHub] spark issue #23012: [SPARK-26014][R] Deprecate R prior to version 3.4 in Spa...

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[GitHub] spark issue #23012: [SPARK-26014][R] Deprecate R prior to version 3.4 in Spa...

2018-11-12 Thread HyukjinKwon
Github user HyukjinKwon commented on the issue:

https://github.com/apache/spark/pull/23012
  
Yea will take a look to address. But about documenting unsupported, if we 
explicitly are going to say it's unsupported and dropped, for instance, we 
should remove the compatibility change 
(https://github.com/apache/spark/blob/master/R/pkg/src-native/string_hash_code.c)
 and I assume previous versions don't work. Deprecation step might be more 
concervative and consistent with dropping steps of other language APIs.


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[GitHub] spark issue #23012: [SPARK-26014][R] Deprecate R prior to version 3.4 in Spa...

2018-11-12 Thread felixcheung
Github user felixcheung commented on the issue:

https://github.com/apache/spark/pull/23012
  
Also I think the warning should be in .First in general.R




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[GitHub] spark issue #23012: [SPARK-26014][R] Deprecate R prior to version 3.4 in Spa...

2018-11-12 Thread felixcheung
Github user felixcheung commented on the issue:

https://github.com/apache/spark/pull/23012
  
I think this should say unsupported (ie could still work) instead of 
deprecated

Also the compareVersion should check both major and minor ie 3.4.0



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[GitHub] spark issue #23012: [SPARK-26014][R] Deprecate R prior to version 3.4 in Spa...

2018-11-11 Thread HyukjinKwon
Github user HyukjinKwon commented on the issue:

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adding @srowen too.


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[GitHub] spark issue #23012: [SPARK-26014][R] Deprecate R prior to version 3.4 in Spa...

2018-11-11 Thread HyukjinKwon
Github user HyukjinKwon commented on the issue:

https://github.com/apache/spark/pull/23012
  
Tests probably will fail since it produces warnings. 

cc @felixcheung. @shaneknapp, @viirya, @shivaram, @falaki, @mengxr, 
@yanboliang FYI.

This PR is made per 
http://apache-spark-developers-list.1001551.n3.nabble.com/discuss-SparkR-CRAN-feasibility-check-server-problem-td25605.html


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