[#HADOOP-3380] need comparators in serializer framework

Hadoop Common

need comparators in serializer framework

Created: 13/May/08 04:31 PM Updated: 26/Jan/09 10:05 PM

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File Attachments:

File Name	Date Attached	Attached By	Size
comparator_wip1.patch	2008-05-20 08:15 AM	Enis Soztutar	44 kB
comparator_wip1.patch	2008-05-20 08:03 AM	Enis Soztutar	41 kB

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The new serialization framework permits Hadoop to incorporate different serialization systems, including Hadoop's Writable, Thrift, Java Serialization, etc. It provides a generic, extensible means (SerializationFactory) to create serializers and deserializers for arbitrary Java classes. However it does not include a generic means to create comparators for these classes. Comparators are required for MapReduce keys and many other computations. Thus we should enhance the serialization framwork to provide comparators too.

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Doug Cutting made changes - 13/May/08 04:36 PM

Field	Original Value	New Value
Link		This issue blocks ~~HADOOP-3315~~ [ ~~HADOOP-3315~~ ]

Enis Soztutar made changes - 20/May/08 08:03 AM

Attachment

comparator_wip1.patch [ 12382359 ]

Enis Soztutar made changes - 20/May/08 08:15 AM

Attachment

comparator_wip1.patch [ 12382360 ]

Hong Tang made changes - 26/Jan/09 10:05 PM

Link

This issue blocks ~~HADOOP-3315~~ [ ~~HADOOP-3315~~ ]