# EasyMapReduce

**Repository Path**: fanx-dev/EasyMapReduce

## Basic Information

- **Project Name**: EasyMapReduce
- **Description**: 基于Hadoop的大数据分析工具
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 1
- **Forks**: 0
- **Created**: 2020-10-04
- **Last Updated**: 2024-12-23

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# EasyMapReduce

Write Hadoop MapReduce in high-level API. Inspired by Apache Spark

# Word Count
```
  Void main() {
    init
    ds := c.load(input).map{ it.split(' ').join("\n") }.reduce(0)|Int r,v|{ r + 1 }
    ds.save(output)
  }
```

#### Run

```
cd demo
fan wordCount.fan
```

#### Config
set 'HADOOP_HOME' env vars

#### Debug
Running in a local simulation env.
```
fan wordCount.fan -debug
```

#### How it works
Show more detail by '-debug_show' args.
```
fan wordCount.fan -debug_show
```

#### Passing Hadoop Args
```
fan wordCount.fan -hadoop '-files ./dict,./data'
```
More [Hadoop Streaming Args](https://hadoop.apache.org/docs/r1.2.1/streaming.html)