[spark] branch branch-3.2 updated: [SPARK-8731] Beeline doesn't work with -e option when started in background

[yao]

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yao pushed a commit to branch branch-3.2
in repository https://gitbox.apache.org/repos/asf/spark.git


The following commit(s) were added to refs/heads/branch-3.2 by this push:
     new 3cc2ba998e1 [SPARK-8731] Beeline doesn't work with -e option when 
started in background
3cc2ba998e1 is described below

commit 3cc2ba998e1fa098f40779d1f2154df3fbd7a78d
Author: zhouyifan279 <zhouyifan...@gmail.com>
AuthorDate: Wed Oct 12 11:34:43 2022 +0800

    [SPARK-8731] Beeline doesn't work with -e option when started in background
    
    ### What changes were proposed in this pull request?
    Append jline option "-Djline.terminal=jline.UnsupportedTerminal" to  enable 
the Beeline process to run in background.
    
    ### Why are the changes needed?
    Currently, if we execute spark Beeline in background, the Beeline process 
stops immediately.
    <img width="1350" alt="image" 
src="https://user-images.githubusercontent.com/88070094/194742935-8235b1ba-386e-4470-b182-873ef185e19f.png";>
    
    ### Does this PR introduce _any_ user-facing change?
    User will be able to execute Spark Beeline in background.
    
    ### How was this patch tested?
    
    1. Start Spark ThriftServer
    2. Execute command `./bin/beeline -u "jdbc:hive2://localhost:10000" -e 
"select 1;" &`
    3. Verify Beeline process output in console:
    <img width="1407" alt="image" 
src="https://user-images.githubusercontent.com/88070094/194743153-ff3f1d19-ac23-443b-97a6-f024719008cd.png";>
    
    ### Note
    
    Beeline works fine on Windows when backgrounded:
    
![image](https://user-images.githubusercontent.com/88070094/194743797-7dc4fc21-dec6-4056-8b13-21fc96f1476e.png)
    
    Closes #38172 from zhouyifan279/SPARK-8731.
    
    Authored-by: zhouyifan279 <zhouyifan...@gmail.com>
    Signed-off-by: Kent Yao <y...@apache.org>
    (cherry picked from commit cb0d6ed46acee7271597764e018558b86aa8c29b)
    Signed-off-by: Kent Yao <y...@apache.org>
---
 bin/load-spark-env.sh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/bin/load-spark-env.sh b/bin/load-spark-env.sh
index 04adaeed7ac..fc5e881dd0d 100644
--- a/bin/load-spark-env.sh
+++ b/bin/load-spark-env.sh
@@ -63,3 +63,8 @@ if [ -z "$SPARK_SCALA_VERSION" ]; then
     export SPARK_SCALA_VERSION=${SCALA_VERSION_2}
   fi
 fi
+
+# Append jline option to enable the Beeline process to run in background.
+if [[ ( ! $(ps -o stat= -p $$) =~ "+" ) && ! ( -p /dev/stdin ) ]]; then
+  export SPARK_BEELINE_OPTS="$SPARK_BEELINE_OPTS 
-Djline.terminal=jline.UnsupportedTerminal"
+fi


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