Speed up mvn clean install with parallel builds and forked test execution#5795
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Speed up mvn clean install with parallel builds and forked test execution#5795
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…ution - Add .mvn/maven.config with -T 1C for parallel module builds - Configure surefire forkCount=1C and reuseForks=true for parallel test execution Co-authored-by: dkayiwa <1390773+dkayiwa@users.noreply.github.com>
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[WIP] Improve build speed for mvn clean install
Speed up mvn clean install with parallel builds and forked test execution
Feb 13, 2026
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Build runs single-threaded by default — both module builds and test execution. With ~400 test files in
apialone, this leaves most cores idle..mvn/maven.configwith-T 1C(one thread per core). Independent modules (bom,tools,test,liquibase) build concurrently.forkCount=1C+reuseForks=trueonmaven-surefire-plugin. Distributes test classes across one forked JVM per core.Each surefire fork is a separate JVM process, so H2
mem:databases, Spring contexts, and static state are fully isolated — no test changes needed.Warning
Firewall rules blocked me from connecting to one or more addresses (expand for details)
I tried to connect to the following addresses, but was blocked by firewall rules:
mavenrepo.openmrs.org/usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java -classpath /home/REDACTED/.m2/wrapper/dists/apache-maven-3.9.9/3477a4f1/boot/plexus-classworlds-2.8.0.jar -Dclassworlds.conf=/home/REDACTED/.m2/wrapper/dists/apache-maven-3.9.9/3477a4f1/bin/m2.conf -Dmaven.home=/home/REDACTED/.m2/wrapper/dists/apache-maven-3.9.9/3477a4f1 -Dlibrary.jansi.path=/home/REDACTED/.m2/wrapper/dists/apache-maven-3.9.9/3477a4f1/lib/jansi-native -Dmaven.multiModuleProjectDirectory=/home/REDACTED/work/openmrs-core/openmrs-core org.codehaus.plexus.classworlds.launcher.Launcher validate -pl api -q(dns block)/usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java -classpath /home/REDACTED/.m2/wrapper/dists/apache-maven-3.9.9/3477a4f1/boot/plexus-classworlds-2.8.0.jar -Dclassworlds.conf=/home/REDACTED/.m2/wrapper/dists/apache-maven-3.9.9/3477a4f1/bin/m2.conf -Dmaven.home=/home/REDACTED/.m2/wrapper/dists/apache-maven-3.9.9/3477a4f1 -Dlibrary.jansi.path=/home/REDACTED/.m2/wrapper/dists/apache-maven-3.9.9/3477a4f1/lib/jansi-native -Dmaven.multiModuleProjectDirectory=/home/REDACTED/work/openmrs-core/openmrs-core org.codehaus.plexus.classworlds.launcher.Launcher help:effective-pom -pl api -Doutput=/tmp/effective-pom.xml -q(dns block)/usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java -classpath /home/REDACTED/.m2/wrapper/dists/apache-maven-3.9.9/3477a4f1/boot/plexus-classworlds-2.8.0.jar -Dclassworlds.conf=/home/REDACTED/.m2/wrapper/dists/apache-maven-3.9.9/3477a4f1/bin/m2.conf -Dmaven.home=/home/REDACTED/.m2/wrapper/dists/apache-maven-3.9.9/3477a4f1 -Dlibrary.jansi.path=/home/REDACTED/.m2/wrapper/dists/apache-maven-3.9.9/3477a4f1/lib/jansi-native -Dmaven.multiModuleProjectDirectory=/home/REDACTED/work/openmrs-core/openmrs-core org.codehaus.plexus.classworlds.launcher.Launcher validate -pl api --also-make --no-transfer-progress -q(dns block)If you need me to access, download, or install something from one of these locations, you can either:
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