PropertyDef

PropertyDef

Defines a property to set in GVBuffer.

The PropertyDef Element is used by: ChangeGVBuffer, SpProperties, JbProperties, RemoteCommands.

The following table shows the PropertyDef element's attributes:

Attribute	Type	Description
name	required	Property name.
value	required	Property value. Can contains metadata
overwrite-body	optional	If "yes" the GVBuffer body is overwitten with the GVBuffer's property value or with the current property value, or is set to null. The body overwrite is execute prior of 'compress', 'crypto' or 'base64' operations. WARNING!!!!!!! The 'clear-data' operation is still performed invalidating the body overwriting. The attribute's admitted values are: yes no

Might contain the sub-element Description.

The following table shows the PropertyDef possible elements that can be set when a RemoteCommand is executed on the HDFS file system:

RemoteCommand	Possible Values
GVDownload	false] dfs.file.raw-local-filesystem [true|false] dfs.stream-buffer-size [default: 8192] These parameters can be used to specify the related action when a download operation is used on the HDFS file system.
GVUpload	false] dfs.file.overwrite [true|false] dfs.permissions.path [Unix-like permission Example: 777] dfs.stream-buffer-size dfs.replication [default 1:] dfs.blocksize [default: 1048576] dfs.permissions.user [hdfs user owner] dfs.permissions.group [hdfs user group] These parameters can be used to owerwrite the target destination with the source one, set the replication, permissions and the other properties on destination target when a download operation is used on the HDFS file system.