I installed my Node.js application to register any request that returns 404. Example:
console.error("404: " + req.url);
Now that debugging another problem, I found out that my log is flooded with the following:
404: /_ah/health 404: /_ah/health 404: /_ah/health
They are countless in number and they are not divided by 1 m.
What is it? Who sent them? Is it from GAE? Some kind of health survey or something else? Should I serve this URL? What should I serve at this URL?
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