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Hadoop graphs

Time:09-15

Save the children Hadoop, graphs with eclipes
1, analyze the global temperature data, and according to the temperature of 15 degrees - 25 degrees data in part - r - 00000 partitions, the rest of the data in part - r - 00001 partition,
Partition and part part - r - 00000 - r - 00001 for the input statistical data partition global annual maximum temperature and minimum temperature, graphs and output results include the year, the highest temperature, lowest temperature, and in accordance with the highest temperature descending sort order, if the highest temperature is the same, is the lowest temperature ascending sort,
The process according to the 2000 act a logical fragmentation graphs (map) executable program, the results output to/exam + student id, concludes that the directory exists, such as existence, delete and then executed program,

CodePudding user response:

Data,,,

CodePudding user response:

A little, in detail,
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