Spark应用程序突然被杀死

Question

我试图在spark中实现power iteration clustering。我从spark shell运行它，shell突然退出并显示以下错误信息

/opt/spark/spark-1.4.1-bin-hadoop2.6/bin/spark-shell: line 54: 30324 Killed
     "$FWDIR"/bin/spark-submit --class org.apache.spark.repl.Main "$@"

行为的任何原因