GitHub user HyukjinKwon opened a pull request:
https://github.com/apache/spark/pull/23012
[SPARK-26014][R] Deprecate R prior to version 3.4 in SparkR
## What changes were proposed in this pull request?
This PR proposes to bump up the minimum versions of R from 3.1 to 3.4.
R version. 3.1.x is too old. It's released 4.5 years ago. R 3.4.0 is
released 1.5 years ago. Considering the timing for Spark 3.0, deprecating lower
versions, bumping up R to 3.4 might be reasonable option.
It should be good to deprecate and drop < R 3.4 support.
If we think about the practice, nothing particular is required within R
codes as far as I can tell, except:
1.
https://github.com/apache/spark/blob/master/R/pkg/src-native/string_hash_code.c
2. `env` becomes immutable but in some low versions they are mutable ... if
I remember correctly .. shouldn't be a big deal in SparkR side.
3. We will need to upgrade Jenkins's R version to 3.4, which mean we're not
going to test 3.1 R version - this should be okay because we're already not
testing R 3.2, 3.3 and 3.4. We test 3.5 in Appveyor, and 3.1 in Jenkins.
## How was this patch tested?
Jenkins tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/HyukjinKwon/spark SPARK-26014
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/23012.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #23012
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commit dc2dbd923a1396ca5a7a950df35da57cc70c2ab8
Author: hyukjinkwon <gurwls223@...>
Date: 2018-11-12T05:39:14Z
Deprecate R prior to version 3.4 in SparkR
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