修改aws emr系统datanode的ulimit值

原創 玉羽凌风 2020-02-22 19:58

1.hadoop用户登录到EMR集群的core节点

2.执行sudo su命令切换到root用户

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

4. reboot

5.重新登录到hadoop用户，执行unlimit -n查看值是否生效

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

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