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JDK commands (java, javac) must be in the command path.
The Maven command (mvn) must be in the command path.
To generate the documentation, Oozie uses a patched Doxia plugin for Maven with improved twiki support.
The source of the modified plugin is available in the Oozie GitHub repository, in the ydoxia branch.
To build and install it locally run the following command in the ydoxia branch:
NOTE: SSH actions are deprecated in Oozie 2.
To run SSH Testcases and for easier Hadoop start/stop configure SSH to localhost to be passphrase-less.
Create your SSH keys without a passphrase and add the public key to the authorized file:
$ ssh-keygen -t dsa $ cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys2
Test that you can ssh without password:
$ ssh localhost
By default, the build configuration enforces that JDK 1.6.* is being used to compile and run the testcases.
There are 2 build properties that can be used to change the JDK version requirements:
IMPORTANT: If setting javaVersion to 1.7 , still the generated bytecode is for JDK 1.6 unless targetJavaVersion is also set to 1.7 .
The JARs for the specified Hadoop and Pig versions must be available in one of the Maven repositories defined in Oozie main 'pom.xml' file. Or they must be installed in the local Maven cache.
Using embedded Hadoop minicluster with 'simple' authentication:
$ mvn clean test
Using a Hadoop cluster with 'simple' authentication:
$ mvn clean test -Doozie.test.hadoop.minicluster=false
Using embedded Hadoop minicluster with 'simple' authentication and Derby database:
$ mvn clean test -Doozie.test.hadoop.minicluster=false -Doozie.test.db=derby
Using a Hadoop cluster with 'kerberos' authentication:
$ mvn clean test -Doozie.test.hadoop.minicluster=false -Doozie.test.hadoop.security=kerberos
NOTE: The embedded minicluster cannot be used when testing with 'kerberos' authentication.
Using a custom Oozie configuration for testcases:
$ mvn clean test -Doozie.test.config.file=/home/tucu/custom-oozie-sitel.xml
Running the testcases with different databases:
$ mvn clean test -Doozie.test.db=[hsqldb*|derby|mysql|postgres|oracle]
Using mysql and oracle enables profiles that will include their JARs files in the build. If using oracle , the Oracle JDBC JAR file must be manually installed in the local Maven cache (the JAR is not available in public Maven repos).
All these options can be set using -D .
Except for the options marked with (*) , the options can be specified in the test.properties in the root of the Oozie project. The options marked with (*) are used in Maven POMs, thus they don't take effect if specified in the test.properties file (which is loaded by the XTestCase class at class initialization time).
includeHadoopJars (*): includes Hadoop JARs and its transitive dependencies in the Oozie WAR file, default is undefined (Hadoop JARs are not included).
hadoop.version (*) : indicates the Hadoop version(Hadoop-1 or Hadoop-2) you wish to build Oozie against specifically. It will substitute this value in the Oozie POM properties and pull the corresponding Hadoop artifacts from Maven. Default version is 1.0.1 for Hadoop-1 (the most common case). For Hadoop-2, the version you can pass is 2.0.0-alpha .
generateSite (*): generates Oozie documentation, default is undefined (no documentation is generated)
skipTests (*): skips the execution of all testcases, no value required, default is undefined
test = (*): runs a single test case, to run a test give the test class name without package and extension, no default
oozie.test.db (*): indicates the database to use for running the testcases, supported values are 'hsqldb', 'derby', 'mysql', 'postgres' and 'oracle'; default value is 'hsqldb'. For each database there is =core/src/test/resources/DATABASE-oozie-site.xml file preconfigured.
oozie.test.properties (*): indicates the file to load the test properties from, by default is test.properties . Having this option allows having different test properties sets, for example: minicluster, simple & kerberos.
oozie.test.waitfor.ratio : multiplication factor for testcases using waitfor, the ratio is used to adjust the effective time out. For slow machines the ratio should be increased. The default value is =1 .
oozie.test.config.file = : indicates a custom Oozie configuration file for running the testcases. The specified file must be an absolute path. For example, it can be useful to specify different database than HSQL for running the testcases.
oozie.test.hadoop.minicluster = : indicates if Hadoop minicluster should be started for testcases, default value 'true'
oozie.test.job.tracker = : indicates the URI of the JobTracker when using a Hadoop cluster for testing, default value 'localhost:8021'
oozie.test.name.node = : indicates the URI of the NameNode when using a Hadoop cluster for testing, default value 'hdfs://localhost:8020'
oozie.test.hadoop.security = : indicates the type of Hadoop authentication for testing, valid values are 'simple' or 'kerberos, default value 'simple'
oozie.test.kerberos.keytab.file = : indicates the location of the keytab file, default value '${user.home}/oozie.keytab'
oozie.test.kerberos.realm = : indicates the Kerberos real, default value 'LOCALHOST'
oozie.test.kerberos.oozie.principal = : indicates the Kerberos principal for oozie, default value '${user.name}/localhost'
oozie.test.kerberos.jobtracker.principal = : indicates the Kerberos principal for the JobTracker, default value 'mapred/localhost'
oozie.test.kerberos.namenode.principal = : indicates the Kerberos principal for the NameNode, default value 'hdfs/localhost'
oozie.test.user.oozie : specifies the user ID used to start Oozie server in testcases, default value is =${user.name} .
oozie.test.user.test : specifies primary user ID used as the user submitting jobs to Oozie Server in testcases, default value is =test .
oozie.test.user.test2 : specifies secondary user ID used as the user submitting jobs to Oozie Server in testcases, default value is =test2 .
oozie.test.user.test3 : specifies secondary user ID used as the user submitting jobs to Oozie Server in testcases, default value is =test3 .
oozie.test.group : specifies group ID used as group when submitting jobs to Oozie Server in testcases, default value is =testg .
NOTE: The users/group specified in oozie.test.user.test2 , oozie.test.user.test3 = and oozie.test.user.group = are used for the authorization testcases only.
oozie.test.dir : specifies the directory where the =oozietests directory will be created, default value is /tmp . The oozietests directory is used by testcases when they need a local filesystem directory.
hadoop.log.dir : specifies the directory where Hadoop minicluster will write its logs during testcases, default value is =/tmp .
test.exclude : specifies a testcase class (just the class name) to exclude for the tests run, for example =TestSubmitCommand .
test.exclude.pattern : specifies one or more patterns for testcases to exclude, for example =**/Test*Command.java .
Pipes testcases require Hadoop's wordcount-simple pipes binary example to run. The wordcount-simple pipes binary should be compiled for the build platform and copied into Oozie's core/src/test/resources/ directory. The binary file must be named wordcount-simple .
If the wordcount-simple pipes binary file is not available the testcase will do a NOP and it will print to its output file the following message 'SKIPPING TEST: TestPipesMain, binary 'wordcount-simple' not available in the classpath'.
There are 2 testcases that use the wordcount-simple pipes binary, TestPipesMain and TestMapReduceActionExecutor , the 'SKIPPING TEST..." message would appear in the testcase log file of both testcases.
An Oozie distribution bundles an embedded Tomcat server. The Oozie distro module downloads Tomcat TAR.GZ from Apache once (in the distro/downloads/ directory) and uses it when creating the distro.
The following Maven invocation builds an Oozie distribution:
$ mvn clean package assembly:single
Build instructions with Hadoop Yarn (Hadoop-2.x)
Following values can be passed as maven properties
For e.g.
$ mvn clean package assembly:single -Dhadoop.version=2.0.0-alpha
If none of these parameters are specified, the defaults are
IMPORTANT: It is strongly recommend to use a Bigtop distribution if using Hadoop 2.x because the Oozie sharelibs built from the tarball distribution will not work with it.
The following properties should be specified when building a release:
The provided bin/mkdistro.sh script runs the above Maven invocation setting all these properties to the right values (the 'vc.*' properties are obtained from the local git repository).
Eclipse and IntelliJ can use directly Oozie Maven project files.
The only special consideration is that the following source directories from the client module must be added to the core module source path: