HADOOP-15279. increase maven heap size recommendations

Signed-off-by: Jason Lowe <jlowe@apache.org>
Signed-off-by: Chris Douglas <cdouglas@apache.org>
(cherry picked from commit d4cc50f62279dc4d607cd05c16de480a76f05880)
(cherry picked from commit dbd69cb2ce2a060e36280b222cac05fc05e065d1)

BUILDING.txt

@@ -219,10 +219,10 @@ If the build process fails with an out of memory error, you should be able to fi
 it by increasing the memory used by maven -which can be done via the environment
 variable MAVEN_OPTS.
 
-Here is an example setting to allocate between 256 and 512 MB of heap space to
+Here is an example setting to allocate between 256 MB and 1.5 GB of heap space to
 Maven
 
-export MAVEN_OPTS="-Xms256m -Xmx512m"
+export MAVEN_OPTS="-Xms256m -Xmx1536m"
 
 ----------------------------------------------------------------------------------
 

dev-support/docker/Dockerfile

@@ -76,7 +76,7 @@ RUN cabal update && cabal install shellcheck --global
 ###
 # Avoid out of memory errors in builds
 ###
-ENV MAVEN_OPTS -Xms256m -Xmx512m
+ENV MAVEN_OPTS -Xms256m -Xmx1536m
 
 ###
 # Everything past this point is either not needed for testing or breaks Yetus.

hadoop-common-project/hadoop-common/CHANGES.txt

@@ -27,6 +27,9 @@ Release 2.7.6 - UNRELEASED
     HADOOP-15283. Upgrade from findbugs 3.0.1 to spotbugs 3.1.2 in branch-2
     to fix docker image build. (aajisaka)
 
+    HADOOP-15279. Increase maven heap size recommendations.
+    (Allen Wittenauer via aajisaka)
+
   OPTIMIZATIONS
 
   BUG FIXES