Add retries for flow tables in Prometheus.
Add retries for flow tables in Prometheus.

shivarammysore/faucet,wackerly/faucet,trungdtbk/faucet,trentindav/faucet,faucetsdn/faucet,gizmoguy/faucet,mwutzke/faucet,trungdtbk/faucet,faucetsdn/faucet,anarkiwi/faucet,gizmoguy/faucet,wackerly/faucet,shivarammysore/faucet,mwutzke/faucet,anarkiwi/faucet,REANNZ/faucet,REANNZ/faucet,trentindav/faucet