DfsBlock Class

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[This is preliminary documentation and is subject to change.]

Work item describing an Dfs block to be read at a worker.

Inheritance Hierarchy

SystemObject
Microsoft.Research.Naiad.Frameworks.Storage.DfsDfsBlock

Namespace: Microsoft.Research.Naiad.Frameworks.Storage.Dfs
Assembly: Microsoft.Research.Naiad.Storage (in Microsoft.Research.Naiad.Storage.dll) Version: 0.5.0.0 (0.5.0.0)

Syntax

[SerializableAttribute]
public class DfsBlock

The DfsBlock type exposes the following members.

Constructors

	Name	Description
	DfsBlock	Initializes a new instance of the DfsBlock class

Fields

	Name	Description
	dataNodeAddress	address and port of the preferred datanode to use to read the block from; this saves one redirection through the namenode during the webhdfs protocol
	fileLength	total length of the file
	length	length of the block to read
	offset	offset of the block in the file
	path	path of the file being read

Remarks

This is currently somewhat HDFS-specific, and would probably be generalized if another file system were added