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java.lang.OutOfMemoryError: Java heap space
Dumping heap to java_pid28720.hprof ...

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "kafka-producer-network-thread | ServiceListener"
Heap dump file created [6312146920 bytes in 156.469 secs]
Uncaught error from thread [opendaylight-cluster-data-akka.actor.default-dispatcher-13]: Java heap space, shutting down JVM since 'akka.jvm-exit-on-fatal-error' is enabled for ActorSystem[opendaylight-cluster-data]
Exception in thread "Timer-0" java.lang.OutOfMemoryError: Java heap space
Uncaught error from thread [opendaylight-cluster-data-akka.actor.default-dispatcher-5]: Java heap space, shutting down JVM since 'akka.jvm-exit-on-fatal-error' is enabled for ActorSystem[opendaylight-cluster-data]
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
Exception in thread "topology-schema-assembler-1" java.lang.OutOfMemoryError: Java heap space