How It Works: Why does ScaleArcs Query Log report entries from loopback address '127.0.0.1'

Release	Classification	Level	DB Platform	Categories
ALL	Information		ALL	Logging

QUESTION

Why do i see a bunch of Query Logs from loopback address [Client IP: 127.0.0.1] as shown - 

ANSWER

If your ScaleArc Cluster is setup with "Outbound: All IPs" as shown below, Then ScaleArc's internal Cluster Monitoring logic will use the loopback address to verify if its able to connect to DB server from the clusters Outbound IP on a periodic basis. Hence the logs indicate Client IP: 127.0.0.1

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