GitHub user HyukjinKwon opened a pull request:
https://github.com/apache/spark/pull/18335
[SPARK-21128][R] Remove both "spark-warehouse" and "metastore_db" before
listing files in R tests
## What changes were proposed in this pull request?
This PR proposes to list the files before test _after_ removing both
"spark-warehouse" and "metastore_db" so that the next run of R tests pass fine.
This is sometimes a bit annoying.
## How was this patch tested?
Manually running multiple times R tests via `./R/run-tests.sh`.
**Before**
Second run:
```
SparkSQL functions: Spark package found in SPARK_HOME: .../spark
...............................................................................................................................................................
...............................................................................................................................................................
...............................................................................................................................................................
...............................................................................................................................................................
...............................................................................................................................................................
....................................................................................................1234.......................
Failed
-------------------------------------------------------------------------
1. Failure: No extra files are created in SPARK_HOME by starting session
and making calls (@test_sparkSQL.R#3384)
length(list1) not equal to length(list2).
1/1 mismatches
[1] 25 - 23 == 2
2. Failure: No extra files are created in SPARK_HOME by starting session
and making calls (@test_sparkSQL.R#3384)
sort(list1, na.last = TRUE) not equal to sort(list2, na.last = TRUE).
10/25 mismatches
x[16]: "metastore_db"
y[16]: "pkg"
x[17]: "pkg"
y[17]: "R"
x[18]: "R"
y[18]: "README.md"
x[19]: "README.md"
y[19]: "run-tests.sh"
x[20]: "run-tests.sh"
y[20]: "SparkR_2.2.0.tar.gz"
x[21]: "metastore_db"
y[21]: "pkg"
x[22]: "pkg"
y[22]: "R"
x[23]: "R"
y[23]: "README.md"
x[24]: "README.md"
y[24]: "run-tests.sh"
x[25]: "run-tests.sh"
y[25]: "SparkR_2.2.0.tar.gz"
3. Failure: No extra files are created in SPARK_HOME by starting session
and making calls (@test_sparkSQL.R#3388)
length(list1) not equal to length(list2).
1/1 mismatches
[1] 25 - 23 == 2
4. Failure: No extra files are created in SPARK_HOME by starting session
and making calls (@test_sparkSQL.R#3388)
sort(list1, na.last = TRUE) not equal to sort(list2, na.last = TRUE).
10/25 mismatches
x[16]: "metastore_db"
y[16]: "pkg"
x[17]: "pkg"
y[17]: "R"
x[18]: "R"
y[18]: "README.md"
x[19]: "README.md"
y[19]: "run-tests.sh"
x[20]: "run-tests.sh"
y[20]: "SparkR_2.2.0.tar.gz"
x[21]: "metastore_db"
y[21]: "pkg"
x[22]: "pkg"
y[22]: "R"
x[23]: "R"
y[23]: "README.md"
x[24]: "README.md"
y[24]: "run-tests.sh"
x[25]: "run-tests.sh"
y[25]: "SparkR_2.2.0.tar.gz"
DONE
===========================================================================
```
**After**
Second run:
```
SparkSQL functions: Spark package found in SPARK_HOME: .../spark
...............................................................................................................................................................
...............................................................................................................................................................
...............................................................................................................................................................
...............................................................................................................................................................
...............................................................................................................................................................
...............................................................................................................................
```
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/HyukjinKwon/spark SPARK-21128
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/18335.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 #18335
----
commit ac55645f5fced19700360594b999e169425049cb
Author: hyukjinkwon <gurwls...@gmail.com>
Date: 2017-06-17T10:22:26Z
Running R tests multiple times failed due to pre-exiting "spark-warehouse"
/ "metastore_db"
----
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