[google-cloud-sql-discuss] Re: Big difference in network latency of 1st gen vs 2nd gen

Is your app server onsite or hosted? Can you share details as to how you are measuring latency?

On Saturday, February 4, 2017 at 11:59:30 AM UTC-5, Son Nguyen wrote:

I have 4 SQL instances in "us-central1-b" (same region, same zone), two 1st gen (173.194.xx.xx) and two 2nd gen (104.154.xx.xx, 130.211.xx.xx)

Network latency from my app server (Dallas, TX) (similar results from other locations)

173.194.xx.xx => 7ms (1st gen)

104.154.xx.xx => 23ms (2nd gen)

130.211.xx.xx => 28ms (2nd gen)

Surprise! 1st gen has much better and faster network latency that 2nd gen. 

I've also tried to change the zone within us-central and different IPs but same result.

Anyone knows why there is such a big difference in latency (7ms vs. 23/28ms)?

Thanks

S

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