Set Max memory to use ?

[Sijan Shrestha]

Is there a way to set maximum memory to use (limit the amount of memory to use) ?

I can set the maximum CPU to be used, but i am unable to configure the max CPU's to be used.

Example 

       server = tornado.httpserver.HTTPServer(app, xheaders=True)                                                                                    

       server.bind(int(config.get("port")))  

       server.start(num_procs)

I want to limit the memory to prevent some processes to stop consuming a lot of memory. Is there a way to avoid this without using cgroups ? I couldn't din it in documentation . Any suggestion?

[A. Jesse Jiryu Davis]

No, Python itself (unlike Java) has no such feature, so Tornado cannot provide it. Fortunately, I've run Tornado in production and never needed a "maximum memory" dial.

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[Ben Darnell]

Tornado does have some related features: the @streaming_request_body decorator and options like max_body_size can be used to limit the amount of memory that tornado uses on behalf of a single connection. The biggest thing we're missing is a way to limit the number of connections (aside from file descriptor limits and other blunt instruments). This can be managed by running Tornado behind a proxy like haproxy or nginx which can limit the number of connections before they get to tornado.

-Ben

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[Phyo Arkar]

Run in a docker container , and then you can limit memory usage