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The following commit(s) were added to refs/heads/master by this push:
     new 3e2470de7ea [SPARK-45536][BUILD] Lower the default `-Xmx` of 
`build/mvn` to 3g
3e2470de7ea is described below

commit 3e2470de7ea8b97dcdd8875ef25f044998fb7588
Author: yangjie01 <yangji...@baidu.com>
AuthorDate: Fri Oct 13 22:55:19 2023 +0800

    [SPARK-45536][BUILD] Lower the default `-Xmx` of `build/mvn` to 3g
    
    ### What changes were proposed in this pull request?
    This pr lower the default `-Xmx` of `build/mvn` from 4g to 3g to reduce the 
peak memory usage of Maven compilation.
    
    ### Why are the changes needed?
    This can potentially fix the snapshot build being failed: 
https://github.com/apache/spark/actions/runs/6502277099
    
    ### Does this PR introduce _any_ user-facing change?
    No
    
    ### How was this patch tested?
    
    - Manual check.
    
    run
    ```
    build/mvn clean install -DskipTests -Pyarn -Pkubernetes -Pvolcano -Phive 
-Phive-thriftserver -Pspark-ganglia-lgpl -Phadoop-cloud
    ```
    
    **Before**
    
    Peak memory usage is at 6.1GB.
    
    **After**
    
    Peak memory usage is at 5GB, but the compilation time has increased by 10%.
    
    ### Was this patch authored or co-authored using generative AI tooling?
    No
    
    Closes #43364 from LuciferYang/r-xmx-3g.
    
    Authored-by: yangjie01 <yangji...@baidu.com>
    Signed-off-by: yangjie01 <yangji...@baidu.com>
---
 build/mvn | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build/mvn b/build/mvn
index 3179099304c..ad753833c69 100755
--- a/build/mvn
+++ b/build/mvn
@@ -36,7 +36,7 @@ _DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 # Preserve the calling directory
 _CALLING_DIR="$(pwd)"
 # Options used during compilation
-_COMPILE_JVM_OPTS="-Xss128m -Xmx4g -XX:ReservedCodeCacheSize=128m"
+_COMPILE_JVM_OPTS="-Xss128m -Xmx3g -XX:ReservedCodeCacheSize=128m"
 
 # Installs any application tarball given a URL, the expected tarball name,
 # and, optionally, a checkable binary path to determine if the binary has


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