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HDFS-14507. Document -blockingDecommission option for hdfs dfsadmin -listOpenFiles 

Signed-off-by: Takanobu Asanuma <tasanuma@apache.org>
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Siyao Meng 2019-05-22 13:20:46 +09:00 committed by Takanobu Asanuma
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commit 9dff6eff81
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hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HDFSCommands.md
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@ -412,7 +412,7 @@ Usage:
| `-getDatanodeInfo` \<datanode\_host:ipc\_port\> | Get the information about the given datanode. See [Rolling Upgrade document](./HdfsRollingUpgrade.html#dfsadmin_-getDatanodeInfo) for the detail. |
| `-metasave` filename | Save Namenode's primary data structures to *filename* in the directory specified by hadoop.log.dir property. *filename* is overwritten if it exists. *filename* will contain one line for each of the following<br/>1. Datanodes heart beating with Namenode<br/>2. Blocks waiting to be replicated<br/>3. Blocks currently being replicated<br/>4. Blocks waiting to be deleted |
| `-triggerBlockReport` `[-incremental]` \<datanode\_host:ipc\_port\> | Trigger a block report for the given datanode. If 'incremental' is specified, it will be otherwise, it will be a full block report. |
| `-listOpenFiles` `[-blockingDecommission]` `[-path <path>]` | List all open files currently managed by the NameNode along with client name and client machine accessing them. Open files list will be filtered by given type and path. |
| `-listOpenFiles` `[-blockingDecommission]` `[-path <path>]` | List all open files currently managed by the NameNode along with client name and client machine accessing them. Open files list will be filtered by given type and path. Add -blockingDecommission option if you only want to list open files that are blocking the DataNode decommissioning. |
| `-help` [cmd] | Displays help for the given command or all commands if none is specified. |
Runs a HDFS dfsadmin client.