You can stop the system monitoring using the ARIS Cloud Controller.
Procedure
set monitoring.monitor.runnable.memory.usage=off
set monitoring.interval.network.cxns=-1
reconfigure <runnable instance id>
+plugin.health.monitoring.value.memUsageBytes.enabled=false +plugin.health.monitoring.value.memUsageMegabytes.enabled=false +plugin.health.monitoring.value.memUsagePercent.enabled=false -JAVA-Dcom.sun.management.jmxremote.port -JAVA-Dcom.sun.management.jmxremote -JAVA-Dcom.sun.management.jmxremote.authenticate -JAVA-Dcom.sun.management.jmxremote.ssl