Devs, We've been seeing some OutOfMemoryErrors on the NCM of our 10-node cluster recently. The flow has ~600 processors, and the NCM runs on a VM with 8GB RAM. We have 6G allocated to the Nifi JVM on this node.
The specific log message we see is: WARN [Process NCM Request-6] org.apache.nifi.io.socket.SocketListener Dispatching socket request encountered exception due to: java.lang.OutOfMemoryError: Java heap space First, I'm hoping there's some advice on how to avoid this in the first place, but barring that, is there a way to configure Nifi to auto-restart the NCM when it gets this error? I seem to remember seeing this in the past, but I couldn't find anything in bootstrap.conf or nifi.properties that looked related. Thanks, Joe
