修改aws emr系統datanode的ulimit值

原創 玉羽凌风 2020-02-22 19:58

1.hadoop用戶登錄到EMR集羣的core節點

2.執行sudo su命令切換到root用戶

3. 執行 echo ' * - nofile 65535' >> /etc/security/limits.conf

4. reboot

5.重新登錄到hadoop用戶，執行unlimit -n查看值是否生效

6.執行sudo stop hadoop-hdfs-datanode && sudo start hadoop-hdfs-datanode

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