Details
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Sub-task
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Status: Patch Available
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Major
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Resolution: Unresolved
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Description
The ETypeConverter class passes Writable objects to the collection converters in order to be read later by the map/reduce functions. These objects are all wrapped in a unique ArrayWritable object.
We can save some memory by returning the java primitive objects instead in order to prevent memory allocation. The only writable object needed by map/reduce is ArrayWritable. If we create another writable class where to store primitive objects (Object), then we can stop using all primitive wirtables.
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