[bigtop] branch master updated: BIGTOP-3140. [Test] TestHadoopExamples.groovy can have $USER = null when running in Docker (#450)

[ev...@apache.org]

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evansye pushed a commit to branch master
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The following commit(s) were added to refs/heads/master by this push:
     new 5ba5800  BIGTOP-3140. [Test] TestHadoopExamples.groovy can have $USER = null when running in Docker (#450)
5ba5800 is described below

commit 5ba58003ee6a4074b20e244c428413a2e02bff44
Author: Evans Ye <ev...@apache.org>
AuthorDate: Sat Jan 19 15:40:33 2019 +0800

    BIGTOP-3140. [Test] TestHadoopExamples.groovy can have $USER = null when running in Docker (#450)
---
 .../org/apache/bigtop/itest/hadoop/mapreduce/TestHadoopExamples.groovy | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/bigtop-tests/test-artifacts/hadoop/src/main/groovy/org/apache/bigtop/itest/hadoop/mapreduce/TestHadoopExamples.groovy b/bigtop-tests/test-artifacts/hadoop/src/main/groovy/org/apache/bigtop/itest/hadoop/mapreduce/TestHadoopExamples.groovy
index 1033180..6f7f07d 100644
--- a/bigtop-tests/test-artifacts/hadoop/src/main/groovy/org/apache/bigtop/itest/hadoop/mapreduce/TestHadoopExamples.groovy
+++ b/bigtop-tests/test-artifacts/hadoop/src/main/groovy/org/apache/bigtop/itest/hadoop/mapreduce/TestHadoopExamples.groovy
@@ -48,8 +48,9 @@ class TestHadoopExamples {
   private static final String HADOOP_COMMAND = System.getenv('HADOOP_COMMAND') ?: "hadoop";
 
   // BIGTOP-3129: Only yarn can successfully write to staging dir, hence workaround by running as yarn.
+  // For normal case, use BIGTOP_TEST_USER variable when it's defined. Otherwise run as current user.
   private static final String BIGTOP_TEST_USER = "${HADOOP_COMMAND}" == "hadoop-qfs" ?
-    "yarn" : (System.getenv('BIGTOP_TEST_USER') ?: System.getenv('USER'))
+    "yarn" : (System.getenv('BIGTOP_TEST_USER') ?: "")
 
   private static String hadoopExamplesJar =
     JarContent.getJarName(HADOOP_MAPRED_HOME, 'hadoop.*examples.*.jar');