How to debug increase in response latencies.

[Creative Cubs]

Hi, 

6AM 8/16 PST, I am seeing 9X increased latency in my app engine (95Percentile 100ms  to 900ms). 

I did not make any deployments around this time. 

App has two front end APIs, three crons, and one push queue task executor. How can I know which API is taking more time? 

Sarath. 

[Patrice (Cloud Platform Support)]

Hi Sarath,

After the fact, it might be a little bit hard to check it precisely. But for the future, you can enable Cloud Monitoring to check on latency.

Cheers!

[Alex Martelli]

I would also recommend a recent blog post by our esteemed colleague John Lowry -- http://googlecloudplatform.blogspot.com/2015/08/How-to-Troubleshoot-Latency-in-Your-App-Engine-Application.html

Alex

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[Dimitri Adamou]

Are your cron running on the front-end aswell? If so you may aswell make a seperate module and let the crons hit that instead