Kent Yao 35bab33984 [SPARK-30121][BUILD] Fix memory usage in sbt build script ... ### What changes were proposed in this pull request? 1. the default memory setting is missing in usage instructions ``` build/sbt -h ``` before ``` -mem <integer> set memory options (default: , which is -Xms2048m -Xmx2048m -XX:ReservedCodeCacheSize=256m) ``` after ``` -mem <integer> set memory options (default: 2048, which is -Xms2048m -Xmx2048m -XX:ReservedCodeCacheSize=256m) ``` 2. the Perm space is not needed anymore, since java7 is removed. the changes in this pr are based on the main sbt script of the newest stable version 1.3.4. ### Why are the changes needed? bug fix ### Does this PR introduce any user-facing change? no ### How was this patch tested? manually Closes #26757 from yaooqinn/SPARK-30121. Authored-by: Kent Yao <yaooqinn@hotmail.com> Signed-off-by: Sean Owen <sean.owen@databricks.com>		2019-12-05 11:50:55 -06:00
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mvn	[SPARK-29159][BUILD] Increase ReservedCodeCacheSize to 1G	2019-09-19 00:24:15 -07:00
sbt	[SPARK-30121][BUILD] Fix memory usage in sbt build script	2019-12-05 11:50:55 -06:00
sbt-launch-lib.bash	[SPARK-30121][BUILD] Fix memory usage in sbt build script	2019-12-05 11:50:55 -06:00
spark-build-info	[SPARK-14279][BUILD] Pick the spark version from pom	2016-06-06 09:42:50 -07:00