Apache Oozie Configuration with Hadoop 2.6.0

My idea of writing this post is to help people who are trying to install Oozie with Hadoop 2+ environment. As I had to refer different places for fixing the errors which I encountered during the process. Here’s it goes..

Step 1: Download Oozie 4.1 from the Apache URL and save the tarball to any directory

cd ~/Downloads
tar -zxf oozie-4.1.0.tar.gz
sudo mv oozie-4.1.0 /usr/local/oozie-4.1.0

Step 2: Assuming you have maven installed, if not, refer to the installation instructions here

Step 3: Update the pom.xml to change the default hadoop version to 2.3.0. The reason we’re not changing it to hadoop version 2.6.0 here is because 2.3.0-oozie-4.1.0.jar is the latest available jar file. Luckily it works with higher versions in 2.x series

cd /usr/local/oozie-4.1.0
vim pom.xml
--Search for
<hadoop.version>1.1.1</hadoop.version>
--Replace it with
<hadoop.version>2.3.0</hadoop.version>

Step 4: Build Oozie executable

mvn clean package assembly:single -P hadoop-2 -DskipTests

Step 5: The executable will be generated in the target sub directory under distro dir. Move it to a new folder under /usr/local/

cd ~/Downloads/oozie-4.1.0/distro/target
tar -zxf oozie-4.1.0-distro.tar.gz
sudo mv oozie-4.1.0 /user/local/oozie-4.1.0

Step 6: Copy the hadoop lib files and Download ext-2.2.zip, this file is no longer available on the extjs.com, that’s why downloading from cloudera archive

cd /usr/local/oozie-4.1.0
mkdir libext
cp -R ~/Downloads/oozie-4.1.0/hadooplibs/hadoop-2/target/hadooplibs/hadooplib-2.3.0.oozie-4.1.0/* libext
cd libext
curl -O http://archive.cloudera.com/gplextras/misc/ext-2.2.zip

Step 7: Build the war file for oozie web console

cd ..
./bin/oozie-startup.sh prepare-war

Step 8: Create sharelib directory under user home dir on HDFS. Please check for the Namenode port in your configuration, I’m using 54310. This command will create ~/share/lib/ directory in your HDFS home and will copy the required lib file

./bin/oozie-setup.sh sharelib create fs -hdfs://localhost:54310

Step 9: Setup oozie metadata repository. By default oozie uses a derby database as the metadata store, however, I’ve chosen local MySQL instance to get the real feel of enterprise installation.  To install MySQL, please refer here

 For Derby metastore:
./bin/ooziedb.sh create -sqlfile oozie.sql -run
For MySQL metastore: login to MySQL and run create the database and schema for repository
mysql>CREATE DATABASE OOZIEDB;
mysql>CREATE USER "OOZIE" IDENTIFIED BY "PASSWORD";
mysql>GRANT ALL PRIVILEGES ON *.* TO OOZIE;
mysql>FLUSH PRIVILEGES;

Ensure that mysql driver is placed in libext folder, change the following properties under con/oozie-site.xml

  • oozie.service.JPAService.jdbc.driver, set it to com.mysql.jdbc.Driver
  • oozie.service.JPAService.jdbc.url set it to jdbc:mysql://OOZIEDB
  • oozie.service.JPAService.jdbc.username, set it to mysql user name
  • oozie.service.JPAService.jdbc.password for password

Run the below command to create metadata tables in the repository:

./bin/ooziedb.sh create db -run

Step 10: Configure Hadoop, etc/hadoop/core-site.xml  for Oozie proxy process. Replace $USER with the user which will run oozie process. For Mac OS, you may have to provide group name explicitly

<property>
<name>hadoop.proxyuser.$USER.hosts</name>
<value>*</value>
</property>
<property>
<name>hadoop.proxyuser.$USER.groups</name>
<value>*/value>
</property>

Step 11: All set, now let’s start Oozie. Once started, the web console should be up at http://localhost:11000/oozie/

cd $OOZIE_HOME/bin
./oozied.sh start

Step 12: Test the installation by submitting an example workflow. Oozie workflow is defined in an xml file and its execution properties are defined in job.properties file.Change the port numbers according to your setup

cd examples/apps/map-reduce/
vim job.properties
##########################################
nameNode=hdfs://localhost:54310
jobTracker=localhost:8050
queueName=default
examplesRoot=examples
oozie.wf.application.path=${nameNode}/user/${user.name}/${examplesRoot}/apps/map-reduce
outputDir=map-reduce

Before submitting the workflow, we need to copy the examples directory under $OOZIE_HOME to the user home on HDFS.

hadoop fs -put examples examples

Now submit the workflow from $OOZIE_HOME dir

./bin/oozie job -oozie http://localhost:11000/oozie -config /examples/apps/map-reduce/job.properties -run

Step 13: Check the job status from oozie web console and job tracker console

Oozie Console

Screen Shot 2015-08-23 at 1.02.04 PM

Screen Shot 2015-08-23 at 1.03.37 PM

Job tracker Console

Screen Shot 2015-08-23 at 1.03.17 PM

Output on HDFS

Screen Shot 2015-08-23 at 1.04.25 PM

Yay! it works!!

This completes Oozie installation and configuration, I’ll soon be writing a post about developing and scheduling oozie workflows.

Cheers!

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3 thoughts on “Apache Oozie Configuration with Hadoop 2.6.0

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