IMF 传奇行动 启动SPARK master无法启动 内存不够问题解决) failed to map 715849728 bytes for committing reserved memory.

[root@master hadoop]#cd /usr/local[root@master local]#lsapache-hive-1.2.1  hadoop-2.6.0   lib           sharebin                IMFdatatest    libexec       spark-1.0.0-bin-hadoop1derby.log          IMFlinuxshell  metastore_db  spark-1.6.0-bin-hadoop2.6etc                include        sbin          srcgames              jdk1.7.0_79    scala-2.10.4hadoop-1.2.1       jdk1.8.0_65    setup_tools

[root@master local]#cd hadoop-2.6.0[root@master hadoop-2.6.0]#lsbin  file:    lib      LICENSE.txt  NOTICE.txt  sbin   testdataetc  include  libexec  logs         README.txt  share  tmp[root@master hadoop-2.6.0]#cd sbin[root@master sbin]#ls                         refresh-namenodes.sh  stop-all.shderby.log                slaves.sh             stop-balancer.shdistribute-exclude.sh    start-all.cmd         stop-dfs.cmdhadoop-daemon.sh         start-all