Hadoop Internals


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ReduceTask


Table of contents:

Startup

Hadoop (MapReduce): ReduceTask - Startup

Shuffle

Hadoop (MapReduce): ReduceTask - Shuffle

Local Fetcher

Hadoop (MapReduce): ReduceTask - Local Fetcher

Fetcher

Hadoop (MapReduce): ReduceTask - Fetcher

Shuffle - Merge

Hadoop (MapReduce): ReduceTask - Shuffle Merge Hadoop (MapReduce): ReduceTask - Shuffle Merge (2)

Execution

Hadoop (MapReduce): ReduceTask - Execution