AEM 6.x systemd start script

aem63_systemd.txt

The following start script has been tested with SLES 12 SP2, AEM 6.3 and Java 8u161.
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cat << 'EOF' > /etc/systemd/system/aem.service
[Unit]
Description=Adobe Experience Manager
After=network.target
 
[Service]
Type=forking
ExecStart=/data/aem/instance/crx-quickstart/bin/start
ExecStop=/data/aem/instance/crx-quickstart/bin/stop
User=aem
WorkingDirectory=/data/aem/instance
PIDFile=/data/aem/instance/crx-quickstart/conf/cq.pid
LimitNOFILE=16000
KillSignal=SIGINT

[Install]
WantedBy=multi-user.target
EOF

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mkdir /etc/systemd/system/aem.service.d/
 
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cat << 'EOF' > /etc/systemd/system/aem.service.d/aem.conf
[Service]
Environment="CQ_PORT=4502"
Environment="CQ_RUNMODE=author,runmode1,runmode2,nosamplecontent"
Environment="CQ_JVM_OPTS=-server \
-Djava.awt.headless=true \
-Djava.io.tmpdir=/data/aem/tmp/ \
-Djavax.net.ssl.trustStore=/data/java/jdk8_171/jre/lib/security/cacerts \
-Djavax.net.ssl.trustStorePassword=changeit \
-Xmx12g \
-XX:MaxMetaspaceSize=1g \
-XX:+HeapDumpOnOutOfMemoryError \
-XX:HeapDumpPath=/data/aem/dumps/ \
-XX:+PrintGCDateStamps -verbose:gc \
-XX:+PrintGCDetails \
-Xdebug \
-Xrunjdwp:transport=dt_socket,server=y,address=45028,suspend=n \
-XX:+JavaMonitorsInStackTrace \
-Dcom.sun.management.jmxremote.port=45029 \
-Dcom.sun.management.jmxremote.ssl=false \
-Dcom.sun.management.jmxremote.authenticate=false \
-XX:+UseGCLogFileRotation \
-XX:NumberOfGCLogFiles=5 \
-XX:GCLogFileSize=20M \
-Xloggc:/data/aem/logs/gc.log"
EOF

Would't it be better to monitor the AEM pid via PIDFile=/path/to/aem/crx-quickstart/conf/cq.pid and also set Type=forking? In this case you also don't need the RemainAfterExit parameter anymore.

You are right with your suggestions. At work we already do it as you described but I didn't update the snippet here. Thx for pointing it out, I'll update this now.