FS Action

Function

The FS Action node is a Hadoop distributed file system (HDFS) operation node. You can create and delete HDFS files and folders and grant permissions for HDFS files and folders using this node.

Parameter Description

Table 1 describes parameters used on the FS Action node.

**Table 1** Parameters
Parameter	Meaning
name	Identifies an FS action.
delete	Deletes a specified file or folder.
move	Moves a file from the source directory to the target directory.
chmod	Modifies file or folder access rights.
path	Indicates the current file path.
source	Indicates the source file path.
target	Indicates the target file path.
permissions	Indicates permissions.

${variable name} indicates the value defined in job.properties.

For example, ${nameNode} indicates hdfs://hacluster. (See job.properties.)

Example Codes

<action name="copyData">
    <fs>
        <delete path='${nameNode}/user/oozie_cli/${dataLoadRoot}/result'/>
        <move source='${nameNode}/user/${wf:user()}/${dataLoadRoot}/output-data/map-reduce' target='${nameNode}/user/oozie_cli/${dataLoadRoot}/result'/>
        <chmod path='${nameNode}/user/oozie_cli/${dataLoadRoot}/reuslt' permissions='-rwxrw-rw-' dir-files='true'></chmod>
     </fs>
     <ok to="end"/>
     <error to="fail"/>
</action>

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