hdfs dfsadmin

最新推荐文章于 2024-12-27 22:40:09 发布

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最新推荐文章于 2024-12-27 22:40:09 发布 · 2.4k 阅读

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#hadoop

这篇博客主要介绍了HDFS的管理工具`hdfs dfsadmin`，特别是如何使用`hadoop dfsadmin -refreshNodes`命令来删除节点。强调了在Hadoop启动前必须正确配置相关设置。

bin/hdfs dfsadmin

管理HDFS

Hagrid01@Hagrid01:[/Hagrid/hadoop-2.6.2]bin/hdfs dfsadmin
Usage: hdfs dfsadmin
Note: Administrative commands can only be run as the HDFS superuser.
        **[-report [-live] [-dead] [-decommissioning]] 报告集群的状况**
        [-safemode <enter | leave | get | wait>]
        [-saveNamespace]
        [-rollEdits]
        [-restoreFailedStorage true|false|check]
        [-refreshNodes]
        [-setQuota <quota> <dirname>...<dirname>]
        [-clrQuota <dirname>...<dirname>]
        [-setSpaceQuota <quota> <dirname>...<dirname>]
        [-clrSpaceQuota <dirname>...<dirname>]
        [-finalizeUpgrade]
        [-rollingU