2 second RPC call to same url according to StackDriver?

[James Crowley]

Hi - I'm trying to diagnose some significant performance issues when running PHP 7 in the standard AppEngine environment.

I've enabled stackdriver tracing (we start the trace as the first step in our PHP app, in the entry point php file), and it seems to be showing the root URL doing an RPC call to the root URL, taking 2 seconds before any of our code executes?

J

[James Crowley]

Can someone on the Google team pick this up? It turns out this is a crazy non-obvious gotcha to hit. It turns out my app.yaml had this:

- url: /.*

script: auto

secure: always

and it should have been (no slash)

- url: .*

script: auto

secure: always

This change reduced our load times by 2 seconds per request. 

Thanks

James

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James Crowley

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[James Crowley]

I may have spoken too soon - turns out POST requests don't have this behaviour, and GET requests do.

Anyone have any ideas what would cause this? 

[Elliott (Cloud Platform Support)]

Hello James,

Please note that Google Groups are reserved for general Google Cloud Platform-end product discussions and not for reporting issues, which is why I suggest moving the troubleshooting to Issue Tracker, where issues can be turned private in case we need to gather any project specific details.

[James Crowley]

Thanks Elliott - I wasn't aware of that tracker.

On Tue, 30 Jul 2019 at 21:10, 'Elliott (Cloud Platform Support)' via Google App Engine <google-a...@googlegroups.com> wrote:

Hello James,

Please note that Google Groups are reserved for general Google Cloud Platform-end product discussions and not for reporting issues, which is why I suggest moving the troubleshooting to Issue Tracker, where issues can be turned private in case we need to gather any project specific details.

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