Thanks Carl for those graphs. Just from the latency graph I would say that there are some very slow requests (because 95th percentile is 0.5 second but the 99th percentile is over 7 seconds) and that the change seems to have occurred on the 3rd of October.
Now, because we're suspecting the CloudSQL server to be the bottleneck, can you look at it in the Cloud Console? (https://console.cloud.google.com/sql/instances). Probably the most useful graphs would be the "CPU utilization", "Read/write operations" and "MySQL queries" for the last 30 days. I also found it useful to look at the running queries using something like mytop (https://www.tecmint.com/mysql-performance-monitoring/) or just doing "SHOW FULL PROCESSLIST" repeatedly. All the best, Attila -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/6cf24cbe-e425-407e-b469-e09846e76971%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
