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]#ls
apache-hive-1.2.1  hadoop-2.6.0   lib           share
bin                IMFdatatest    libexec       spark-1.0.0-bin-hadoop1
derby.log          IMFlinuxshell  metastore_db  spark-1.6.0-bin-hadoop2.6
etc                include        sbin          src
games              jdk1.7.0_79    scala-2.10.4
hadoop-1.2.1       jdk1.8.0_65    setup_tools

[root@master local]#cd hadoop-2.6.0
[root@master hadoop-2.6.0]#ls
bin  file:    lib      LICENSE.txt  NOTICE.txt  sbin   testdata
etc  include  libexec  logs         README.txt  share  tmp
[root@master hadoop-2.6.0]#cd sbin
[root@master sbin]#ls
                         refresh-namenodes.sh  stop-all.sh
derby.log                slaves.sh             stop-balancer.sh
distribute-exclude.sh    start-all.cmd         stop-dfs.cmd
hadoop-daemon.sh         start-a