Download Hadoop For Mac

  1. Cloudera Hadoop Download For Mac
  2. Hadoop Mac Os X
  3. What Is Hadoop
  4. Install Hadoop On Linux
  5. Mac Hadoop Install
  6. Hadoop Download For Windows 10

Home Photos About Setting up Hadoop 2.6 on Mac OS X Yosemite. After comparing different guides on the internet, I ended up my own version base on the Hadoop official guide with manual download. Download MySql connector jar and place it in Hive library. Setup configuration files for local Hive Setup HDFS for storing Hive data Starting Hive Each Step is described in detail below Validating hadoop: Hadoop version can be checked using below command. $ hadoop version Output: Hadoop 3.0.3. Apache HBase is a free and open-source, distributed and scalable Hadoop database. Whenever you need random and real-time access to your Big Data, you can use the Apache HBase. Moreover, Apache HBase aims to make it possible to host large tables (with billions of rows) atop clusters of commodity hardware.

At the end of this eight-step process, we will be able to have a local Hadoop instance on our laptop for tests so that we can practice with it.

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Here is what I learned last week about Hadoop installation: Hadoop sounds like a really big thing with a complex installation process, lots of clusters, hundreds of machines, terabytes (if not petabytes) of data, etc. But actually, you can download a simple JAR and run Hadoop with HDFS on your laptop for practice. It's very easy!

Let's download Hadoop, run it on our local laptop without too much clutter, then run a sample job on it. At the end of this eight-step process, we want to be able to have a local Hadoop instance on our laptop for tests so that we can practice with it.

Our plan:

  1. Set up JAVA_HOME (Hadoop is built on Java).
  2. Download Hadoop tar.gz.
  3. Extract Hadoop tar.gz.
  4. Set up Hadoop configuration.
  5. Start and format HDFS.
  6. Upload files to HDFS.
  7. Run a Hadoop job on these uploaded files.
  8. Get back and print results!
Download

Sounds like a plan!

1. Set Up JAVA_HOME

As we said, Hadoop is built, on Java so we need JAVA_HOME set up.

2. Download Hadoop tar.gz

Next, we download Hadoop!

3. Extract Hadoop tar.gz

Now that we have tar.gz on our laptop, let's extract it.

4. Set Up HDFS

Now, let's configure HDFS on our laptop:

The configuration should be:

So, we configured the HDFS port — let's configure how many replicas we need. We are on a laptop, so we want only one replica for our data:

The above hdfs-site.xml is the site for replica configuration. Below is the configuration it should have (hint: 1):

Enable SSHD

Hadoop connects to nodes with SSH, so let's enable it on our Mac laptop:

You should be able to SSH with no pass:

If you can't do that, then do this:

5. Start HDFS

Next, we start and format HDFS on our laptop:

Cloudera Hadoop Download For Mac

6. Create Folders on HDFS

Next, we create a sample input folder on HDFS on our laptop:

Upload Test Data to HDFS

Now that we have HDFS up and running on our laptop, let's upload some files:

7. Run Hadoop Job

So, we have HDFS with files on our laptop — now, let's run a job on it:

Hadoop Mac Os X

8. Get Back and Print Results

For

And that's it. We managed to have a local Hadoop installation with HDFS for tests and run a test job! That is so cool!

big data,tutorial,hadoop,hdfs

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Need to install Hadoop for a class or a project? It can be hard. It took me 1 hour to install and that was after clear instructions provided by Professor.

So I did what a good Software Engineer does and automated it.

Comic credit: Automation by xkcd.

In this post, I will cover two ways to install Hadoop:

  1. Automatic install in 5 minutes
  2. Manual install in 15ish minutes

Unless you are a Software Engineer who wants to install it manually, I’d recommend going with Vagrant as it’s faster and you don’t have to fiddle with you OS.

Vagrant also has an added benefit of keeping your local OS clean and not having to install and troubleshoot different versions of jdk and other packages.

Installing Hadoop in 5 Minutes with Vagrant

  1. Make sure you have latest versions of VirtualBox and Vagrant installed.
  2. Download or clone Vagrant Hadoop repository.
  3. Navigate to the directory where you downloaded the repo using command line (want to learn command line? I’ve got you covered: 7 Essential Linux Commands You Need To Know)
  4. Run vagrant up
  5. Done

What Is Hadoop

That’s it. Once installation is done, run vagrant ssh to access your vagrant machine and use Hadoop.

Installing Hadoop Manually on macOS and Linux

Warning: I’ve only tested these instructions on Linux (Ubuntu to be specific). On macOS, you may need to use different folders or install additional software.

Install Hadoop On Linux

Here are the instructions:

  1. Make sure that apt-get knows about latest repos using sudo apt-get update
  2. Install Java
    sudo apt-get install openjdk-11-jdk
  3. Download Hadoop
    wget http://mirrors.koehn.com/apache/hadoop/common/hadoop-3.2.0/hadoop-3.2.0.tar.gz
  4. Copy Hadoop files to /usr/local/bin (this is a personal preference, you can copy to any folder, just make sure you change the commands going forward)
    sudo tar -xvzf hadoop-3.2.0.tar.gz -C /usr/local/bin/
  5. Rename the hadoop folder. Again, this is a personal preference, you can leave it the way you want but you’ll need to change the paths going forward.
    sudo mv /usr/local/bin/hadoop-3.2.0 /usr/local/bin/hadoop/
  6. Update path variables:
    echo'export JAVA_HOME=/usr'>> /home/vagrant/.bashrc
    echo'export HADOOP_LOG_DIR=/hadoop_logs'>> /home/vagrant/.bashrc
    echo'export PATH=$PATH:/usr/local/bin/hadoop/bin:/usr/local/bin/hadoop/sbin'>> /home/vagrant/.bashrc
    source~/.bashrc
  7. Update Hadoop environment variables:
    echo'export JAVA_HOME=/usr'| sudo tee --append /usr/local/bin/hadoop/etc/hadoop/hadoop-env.sh
    echo'export HADOOP_LOG_DIR=/hadoop_logs'| sudo tee --append /usr/local/bin/hadoop/etc/hadoop/hadoop-env.sh
    echo'export HDFS_NAMENODE_USER='vagrant''| sudo tee --append /usr/local/bin/hadoop/etc/hadoop/hadoop-env.sh
    echo'export HDFS_DATANODE_USER='vagrant''| sudo tee --append /usr/local/bin/hadoop/etc/hadoop/hadoop-env.sh
    echo'export HDFS_SECONDARYNAMENODE_USER='vagrant''| sudo tee --append /usr/local/bin/hadoop/etc/hadoop/hadoop-env.sh
    echo'export YARN_RESOURCEMANAGER_USER='vagrant''| sudo tee --append /usr/local/bin/hadoop/etc/hadoop/hadoop-env.sh
    echo'export YARN_NODEMANAGER_USER='vagrant''| sudo tee --append /usr/local/bin/hadoop/etc/hadoop/hadoop-env.sh
  8. Generate a SSH key and add it to authorized_keys (thanks to Stack Overflow user sapy: Hadoop “Permission denied” warning)
    ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa
    cat /home/vagrant/.ssh/id_rsa.pub >>~/.ssh/authorized_keys
  9. You’ll need to edit the /usr/local/bin/hadoop/etc/hadoop/core-site.xml file to add fs.defaultFS setting. Here’s my configuration file:
    <?xml version='1.0' encoding='UTF-8'?>
    <?xml-stylesheet type='text/xsl' href='configuration.xsl'?>
    <!--
    Licensed under the Apache License, Version 2.0 (the 'License');
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at
    http://www.apache.org/licenses/LICENSE-2.0
    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an 'AS IS' BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License. See accompanying LICENSE file.
    -->
    <!-- Put site-specific property overrides in this file. -->
    <configuration>
    <property>
    <name>fs.defaultFS</name>
    <value>hdfs://localhost:9000</value>
    </property>
    </configuration>
  10. Next, edit the /usr/local/bin/hadoop/etc/hadoop/hdfs-site.xml file to add 3 properties. As SachinJ noted on Stack Overlow, hdfs will reset every time you reboot your OS without the first two of these. (Hadoop namenode needs to be formatted after every computer start)
    <?xml version='1.0' encoding='UTF-8'?>
    <?xml-stylesheet type='text/xsl' href='configuration.xsl'?>
    <!--
    Licensed under the Apache License, Version 2.0 (the 'License');
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at
    http://www.apache.org/licenses/LICENSE-2.0
    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an 'AS IS' BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License. See accompanying LICENSE file.
    -->
    <!-- Put site-specific property overrides in this file. -->
    <configuration>
    <property>
    <name>dfs.name.dir</name>
    <value>file:///vagrant_data/hadoop/name</value>
    </property>
    <property>
    <name>dfs.data.dir</name>
    <value>file:///vagrant_data/hadoop/data</value>
    </property>
    <property>
    <name>dfs.replication</name>
    <value>1</value>
    </property>
    </configuration>
  11. Initialize the hdfs
    /usr/local/bin/hadoop/bin/hdfs namenode -format
  12. Run dfs using /usr/local/bin/hadoop/sbin/start-dfs.sh
  13. Test everything is running fine by creating a directory in hdfs using hdfs dfs -mkdir /test

Mac Hadoop Install

That’s it. If you got Hadoop working, do share the post to help others.

Hadoop Download For Windows 10

Faced any issues? Tell me in comments and I’ll see how I can help.