1 2 3 4 5 6 | <property> <name>yarn.nodemanager.resource.memory-mb</name> <value>3072</value> <description>Amount of physical memory, in MB, that can be allocated for containers.</description> </property> |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | <property> <name> yarn.scheduler.minimum-allocation-mb</name> <value>512</value> <description>The minimum allocation for every container request at the RM, in MBs. Memory requests lower than this won't take effect, and the specified value will get allocated at minimum.</description> </property> <property> <name>yarn.scheduler.maximum-allocation-mb</name> <value>3072</value> <description>The maximum allocation for every container request at the RM, in MBs. Memory requests higher than this won't take effect, and will get capped to this value.</description> </property> |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | <property> <name>mapreduce.map.memory.mb</name> <value>512</value> </property> <property> <name>mapreduce.map.java.opts</name> <value>-Xmx410m</value> </property> <property> <name>mapreduce.reduce.memory.mb</name> <value>1024</value> </property> <property> <name>mapreduce.reduce.java.opts</name> <value>-Xmx819m</value> </property> |
1 2 3 4 5 6 7 8 | <property> <name>yarn.app.mapreduce.am.resource.mb</name> <value>1024</value> </property> <property> <name>yarn.app.mapreduce.am.command-opts</name> <value>-Xmx819m</value> </property> |
1 2 3 | $ hadoop fs -put /etc/hadoop/conf.yarn input/conf.yarn $ hadoop jar /usr/lib/hadoop-mapreduce/hadoop-mapreduce-examples.jar wordcount conf.yarn output/wordcount/conf.yarn |
1 2 3 4 5 6 | <property> <name>yarn.nodemanager.vmem-check-enabled</name> <value>false</value> <description>Whether virtual memory limits will be enforced for containers.</description> </property> 重新启动 NodeManager 让更改生效: $ sudo /etc/init.d/hadoop-yarn-nodemanager restart。 |
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