https://github.com/sepandhaghighi/hadoop

Anagram Python Script In Hadoop
https://github.com/sepandhaghighi/hadoop

anagram anagram-solver linux localhost map-reduce python3 script

Last synced: 6 months ago
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Anagram Python Script In Hadoop

Host: GitHub
URL: https://github.com/sepandhaghighi/hadoop
Owner: sepandhaghighi
Created: 2017-07-20T19:24:01.000Z (about 8 years ago)
Default Branch: master
Last Pushed: 2017-07-23T09:06:57.000Z (about 8 years ago)
Last Synced: 2025-02-05T23:26:55.240Z (8 months ago)
Topics: anagram, anagram-solver, linux, localhost, map-reduce, python3, script
Language: Python
Homepage:
Size: 44.7 MB
Stars: 3
Watchers: 3
Forks: 0
Open Issues: 0
Metadata Files:
- Readme: README.md

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README

----------

# Anagram Sorter (Python + Hadoop)
### Sharif University Of Technology
### Green Computing Final Project Spring 2017

## Requirements

- [Python 2.7+](https://www.python.org/ftp/python/2.7.13/python-2.7.13.msi "Python 2.7+")
- [Hadoop Framework](http://hadoop.apache.org/ "Hadoop")
- [JDK 7+](www.oracle.com/technetwork/java/javase/downloads/index.html "JDK 7+")
- SSH
- Git

## Install Hadoop

1. Install Java
- ```sudo apt-get update```
- ```sudo apt-get install default-jdk```
2. Add User
- ```sudo addgroup hadoop```
- ```sudo adduser --ingroup hadoop username```
- ```sudo adduser username sudo```
3. Install And Config SSH
- ```sudo apt-get install ssh```
- ```su username```
- ``` ssh-keygen -t rsa -P ""```
- ``` cat $HOME/.ssh/id_rsa.pub >> $HOME/.ssh/authorized_keys```
4. Install Hadoop
- [http://hadoop.apache.org/releases.html](http://hadoop.apache.org/releases.html "Hadoop Download Page")
- Extract File (without Error !!)
- ```sudo mv * /usr/local/hadoop```
- ```sudo chmod -R 777 /usr/local/hadoop```
5. Setup Configuration Files
- ```update-alternatives --config java```
- ```nano ~/.bashrc``` and append this items
- ```export JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64```
- ```export HADOOP_INSTALL=/usr/local/hadoop```
- ```export PATH=$PATH:$HADOOP_INSTALL/bin```
- ```export PATH=$PATH:$HADOOP_INSTALL/sbin```
- ```export HADOOP_MAPRED_HOME=$HADOOP_INSTALL```
- ```export HADOOP_COMMON_HOME=$HADOOP_INSTALL```
- ```export HADOOP_HDFS_HOME=$HADOOP_INSTALL```
- ```export YARN_HOME=$HADOOP_INSTALL```
- ```export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_INSTALL/lib/native```
- ```export HADOOP_OPTS="-Djava.library.path=$HADOOP_INSTALL/lib" ``` and save file
- ```source ~/.bashrc```
- ``` nano /usr/local/hadoop/etc/hadoop/hadoop-env.sh``` append this line
- ```export JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64```
- ``` sudo mkdir -p /app/hadoop/tmp```
- ``` sudo chown username:hadoop /app/hadoop/tmp```
- ``` nano /usr/local/hadoop/etc/hadoop/core-site.xml``` enter the following in between the tag
- ```

hadoop.tmp.dir
/app/hadoop/tmp
A base for other temporary directories.

fs.default.name
hdfs://localhost:54310
The name of the default file system. A URI whose
scheme and authority determine the FileSystem implementation. The
uri's scheme determines the config property (fs.SCHEME.impl) naming
the FileSystem implementation class. The uri's authority is used to
determine the host, port, etc. for a filesystem.

```
- ```cp /usr/local/hadoop/etc/hadoop/mapred-site.xml.template /usr/local/hadoop/etc/hadoop/mapred-site.xml```
- ``` nano /usr/local/hadoop/etc/hadoop/mapred-site.xml``` enter the following in between the tag
- ```

mapred.job.tracker
localhost:54311
The host and port that the MapReduce job tracker runs
at. If "local", then jobs are run in-process as a single map
and reduce task.

```
- ```sudo mkdir -p /usr/local/hadoop_store/hdfs/namenode```
- ```sudo mkdir -p /usr/local/hadoop_store/hdfs/datanode```
- ```sudo chown -R username:hadoop /usr/local/hadoop_store```
- ```nano /usr/local/hadoop/etc/hadoop/hdfs-site.xml``` enter the following in between the tag
- ```

dfs.replication
1
Default block replication.
The actual number of replications can be specified when the file is created.
The default is used if replication is not specified in create time.

dfs.namenode.name.dir
file:/usr/local/hadoop_store/hdfs/namenode

dfs.datanode.data.dir
file:/usr/local/hadoop_store/hdfs/datanode

```
6. Start Hadoop
- ```hadoop namenode -format```
- ```cd /usr/local/hadoop/sbin```
- ```start-all.sh```
- In Connection Refused Problems Check [https://wiki.apache.org/hadoop/ConnectionRefused](https://wiki.apache.org/hadoop/ConnectionRefused "Connection Refused")

## Clone Repo
- ```cd /home/username```
- ```git clone https://github.com/sepandhaghighi/hadoop```
- ``` chmod -R 777 /home/username/hadoop```

## HDFS Commands

1. Add input to filesystem --> ``` hadoop fs -put inputfile inputfile```
2. Read output file --> ``` hadoop fs -cat /output/part-00000```
3. Copy output file --> ``` hadoop fs -get /output/part-00000 /home/username/hadoop/output.txt```
4. Remove output folder --> ``` hadoop fs -rmr /output/```

## Run Map/Reduce
``` hadoop jar /usr/local/hadoop/share/hadoop/tools/lib/hadoop-streaming-2.8.0.jar -input input.txt -mapper /home/hduser/hadoop/mapper.py -reducer /home/hduser/hadoop/reducer.py -output /output```

## Samples & Screenshots

[Download Run Full Video](http://www.shaghighi.ir/hadoop/Full.mkv "Download") 43MB ( This video recorded by [simplescreenrecorder](http://www.maartenbaert.be/simplescreenrecorder/ "simplescreenrecorder") )

Input.txt and output.txt in data folder