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CLUSTERED BY 将数据分组以进入不同的bucket中 INTO num_buckets BUCKETS]With the following options:
| Option | Description |
| -c CORES | The number of cores on each host. |
| -m MEMORY | The amount of memory on each host in GB. |
| -d DISKS | The number of disks on each host. |
| -k HBASE | "True" if HBase is installed, "False" if not. |
Note: You can also use the -h or --help option to display a Help message that describes the options.
Running the following command:
[root@jason3 scripts]# python yarn-utils.py -c 24 -m 64 -d 12 -k FalseUsing cores=24 memory=64GB disks=12 hbase=FalseProfile: cores=24 memory=57344MB reserved=8GB usableMem=56GB disks=12Num Container=22Container Ram=2560MBUsed Ram=55GBUnused Ram=8GByarn.scheduler.minimum-allocation-mb=2560yarn.scheduler.maximum-allocation-mb=56320yarn.nodemanager.resource.memory-mb=56320mapreduce.map.memory.mb=2560mapreduce.map.java.opts=-Xmx2048mmapreduce.reduce.memory.mb=2560mapreduce.reduce.java.opts=-Xmx2048myarn.app.mapreduce.am.resource.mb=2560yarn.app.mapreduce.am.command-opts=-Xmx2048mmapreduce.task.io.sort.mb=1024[root@jason3 scripts]#
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原文地址：http://www.cnblogs.com/zwCHAN/p/4494053.html
