Java 17 Linux [extra Quality] 🆒

Create /etc/systemd/system/myapp.service :

# Check if THP is enabled (should be 'always' or 'madvise') cat /sys/kernel/mm/transparent_hugepage/enabled java -XX:+UseTransparentHugePages -jar app.jar Step 5: Running as a Linux Service (systemd) Do not run Java apps with nohup or & . Use a proper systemd unit. java 17 linux

Then:

Published: April 14, 2026 | Category: DevOps / Backend Development Create /etc/systemd/system/myapp

[Unit] Description=My Java 17 Application After=network.target [Service] Type=simple User=myappuser Group=myappuser Environment="JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64" Environment="APP_OPTS=-Xms512m -Xmx2g" ExecStart=$JAVA_HOME/bin/java $APP_OPTS -jar /opt/myapp/app.jar Restart=on-failure RestartSec=10 Here are three critical JVM flags for production: 1

curl -s "https://get.sdkman.io" | bash source "$HOME/.sdkman/bin/sdkman-init.sh" sdk install java 17.0.10-tem sdk default java 17.0.10-tem The Linux kernel behaves differently than macOS or Windows. Here are three critical JVM flags for production: 1. Use -XX:+UseContainerSupport (Enabled by default in Java 17) Java 17 correctly detects cgroup v1 and v2 memory limits. Do not set -Xmx manually unless you understand the heap. 2. Set -XX:ActiveProcessorCount On shared Linux servers, the JVM may see all host CPUs. Limit it: