Running tests in parallel within a single surefire-instance is a little different from running multiple surefire-runs (from separate projects), since there will be different classloaders.
Distributing tests among your modules is likely to improve performance, putting all your tests in one module decreases it - unless you run one of the parallel surefire test providers. 20-50% speed improvement is quite common. This depends greatly on your module structure, but the following observations have been made: The parallel build functionality is brand new, and although they are tested with quite a few projects they do not have the general wisdom accumulated by running on multiple project types on multiple platforms within the community. We recommend that users of the parallel build feature establish their own reference as to how well this works for their project, preferably starting with everyday builds as opposed to final production releases. The parallel build feature has been subject to extensive testing, but the maven ecosystem is diverse so there will be undiscovered issues. The above mentioned thread per cpu core means the number of cores is used as a multiplier Experimental feature for 3.0! This build-mode analyzes your project's dependency graph and schedules modules that can be built in parallel according to the dependency graph of your project. Mvn -T 4 clean install # Builds with 4 threads mvn -T 1C clean install # 1 thread per cpu core mvn -T 1.5C clean install # 1.5 thread per cpu core export M2_HOME=/usr/local/apache-maven/apache-maven-2.2.Maven 3.x has the capability to perform parallel builds. Open command terminal and set environment variables Set the M2_Home and MAVEN_OPTS in linux environment If you see similar message, means your Apache Maven is installed successfully on Windows. To verify it, in command prompt, type “ mvn –version“. Path = %JAVA_HOME%\bin %M2% Because (M2= %M2_HOME%\bin ) 
Update PATH variable, append “Maven bin folder” path, so that you can run the Maven’s command everywhere. M2 = %M2_HOME%\bin (Optional – This M2 vaiable will add in the path variable) M2_HOME = D:\Eclipse_Maven_Tomcat\apache-maven-3.2.3 (Mandatory) Add M2_HOME variable and MAVEN_OPTS variableĪdd a new M2_HOME variable to the Windows environment, and point it to your Maven folder.
I extracted in the path D:\Eclipse_Maven_TomcatĤ. Make sure JDK is installed, and “ JAVA_HOME” variable is added in Windows environment variableĮxtract the downloaded zip file. Download the Maven 3.2.3 software from the below urlįile Name : apache-maven-3.2.3-bin.zip 2. Apache Maven is not require to install on Windows as a service component, you just need to download the Maven’s zip file, extract it and configure the Windows environment path variable.
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