FMonE: A Flexible Monitoring Solution at the Edge

Figure 6

The configuration of our experiments. A central region hosts both a cluster of Cassandra and Kafka. On the edge, three regions of different size host the YCSB clients communicating with the Cassandra database together with the FMonE agents sending their metrics to Kafka. Note that Kafka and Cassandra are running on different nodes to avoid overhead. Bandwidth and latency between regions are limited to 4Mb/s and 50 ms, respectively.