Sandbox for Apache nifi

Introduction

Vagrant project to spin up a cluster of 1 virtual machine with Hadoop 3.2.2, Kafka 1.0.0, Nifi 1.14.0 and Nifi Registry 1.14.0.

• Hadoop
• Kafka
• Nifi
• Nifi-Registry

Currently, Nifi and Nifi Registry integration needs to be setup by manually. See this document: https://community.hortonworks.com/articles/161761/new-features-in-apache-nifi-15-apache-nifi-registr.html Nifi Registry should be running at http://localhost:18080.

Getting Started

1. Download and install VirtualBox
2. Download and install Vagrant.
3. Run vagrant box add geerlingguy/centos7
4. Git clone this project, and change directory (cd) into this project (directory).
5. Run vagrant up to create the VM.
6. Run vagrant ssh to get into your VM.
7. Run vagrant destroy when you want to destroy and get rid of the VM.

Some gotcha's.

1. Make sure you download Vagrant v2.2.17 or higher.
2. Make sure when you clone this project, you preserve the Unix/OSX end-of-line (EOL) characters. The scripts will fail with Windows EOL characters.
3. Make sure you have 4Gb of free memory for the VM. You may change the Vagrantfile to specify smaller memory requirements.
4. This project has NOT been tested with the VMWare provider for Vagrant.
5. You may change the script (common.sh) to point to a different location for Hadoop, Kafka and Nifi to be downloaded from. Here is a list of mirrors for Hadoop: http://www.apache.org/dyn/closer.cgi/hadoop/common/.
6. Basically, Hadoop YARN is installed, but not started. If you want YARN Service, uncomment YARN section of scripts/init-start-all-services.sh and scripts/start-all-services.sh.

Advanced Stuff

-If you have the resources (CPU + Disk Space + Memory), you may modify Vagrantfile to have even more HDFS DataNodes, YARN NodeManagers. Just find the line that says "numNodes = 4" in Vagrantfile and increase that number. The scripts should dynamically provision the additional slaves for you.-

How to Change Stack Versions

Edit variables in scripts/common.sh.

OS

nifi-sandbox uses CentOS 6.8 for default. It can be changed to other version/distribution. Just edit the Vagrantfile's following lines:

    node.vm.box = "geerlingguy/centos7"

Make sure the OS box has virtualbox guest addition.

java

Default settings use jdk-8u91-linux-x64.tar.gz or java-1.8.0-openjdk.x86_64. Edit following lines from scripts/common.sh for oracle JDK:

#java
JAVA_ARCHIVE=jdk-8u91-linux-x64.tar.gz

In case of OpenJDK, edit scripts/setup-java.sh:

function installRemoteJava {
	echo "install open jdk"
	yum install -y java-1.8.0-openjdk.x86_64
}

hadoop

Hadoop version is described in scripts/common.sh:

HADOOP_VERSION=2.7.3
HADOOP_ARCHIVE=hadoop-${HADOOP_VERSION}.tar.gz
HADOOP_MIRROR_DOWNLOAD=http://archive.apache.org/dist/hadoop/core/hadoop-${HADOOP_VERSION}/${HADOOP_ARCHIVE}

To build the sandbox, Make sure HADOOP_MIRROR_DOWNLOAD is available for downloading.

Kafka

Kafka version is described in scripts/common.sh

#Kafka
KAFKA_VERSION=1.0.0
KAFKA_NAME=kafka_2.10-${KAFKA_VERSION}
KAFKA_ARCHIVE=${KAFKA_NAME}.tgz
KAFKA_MIRROR_DOWNLOAD=http://www.apache.org/dist/kafka/${KAFKA_VERSION}/${KAFKA_ARCHIVE}
KAFKA_RES_DIR=/vagrant/resources/kafka
KAFKA_HOME=/usr/local/kafka
KAFKA_CONF=${KAFKA_HOME}/conf

Nifi

Nifi version is described in scripts/common.sh

#Nifi
NIFI_VERSION=1.14.0
NIFI_NAME=nifi-${NIFI_VERSION}
NIFI_ARCHIVE=${NIFI_NAME}-bin.tar.gz
NIFI_MIRROR_DOWNLOAD=http://www.apache.org/dist/${NIFI_VERSION}/${NIFI_ARCHIVE}
NIFI_RES_DIR=/vagrant/resources/nifi
NIFI_HOME=/usr/local/nifi
NIFI_CONF=$NIFI_HOME/config

Make the VMs setup faster

You can make the VM setup even faster if you pre-download the Hadoop, Kafka and Oracle JDK into the /resources directory.

1. /resources/hadoop-3.2.2.tar.gz
2. /resources/jdk-8u152-linux-x64.gz
3. /resources/kafka_2.11-1.0.0.tgz
4. /resources/nifi-1.14.0-bin.tar.gz

The setup script will automatically detect if these files (with precisely the same names) exist and use them instead. If you are using slightly different versions, you will have to modify the script accordingly.

Web UI

You can check the following URLs to monitor the Hadoop daemons.

1. [NameNode] (http://10.10.10.101:9870/dfshealth.html)
2. [Nifi] (http://10.10.10.101:8080/nifi)
3. [NifiRegistry] (http://10.10.10.101:18080/nifi-registry)

Vagrant box location

The Vagrant box is downloaded to the ~/.vagrant.d/boxes directory. On Windows, this is C:/Users/{your-username}/.vagrant.d/boxes.

Acknowledgements

This project is started from Jee Vang's vagrant-hadoop-2.4.1-spark-1.0.1. Thanks a lot.

License

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.