[GitHub] [apisix] atealxt commented on issue #3020: request help: How to fix the log with `upstream response is buffered to a temporary file` was found in `error.log`

[GitBox <gi...@apache.org>]

atealxt commented on issue #3020:
URL: https://github.com/apache/apisix/issues/3020#issuecomment-1161009773

   > This is because the Nginx upstream module default has a non-zero temp file size configuration:
   > 
   > > Syntax:	proxy_max_temp_file_size size;
   > > Default:
   > > proxy_max_temp_file_size 1024m;
   > > Context:	http, server, location
   > > When buffering of responses from the proxied server is enabled, and the whole response does not fit into the buffers set by
   > > the proxy_buffer_size and proxy_buffers directives, a part of the response can be saved to a temporary file. This directive sets the maximum size of the temporary file. The size of data written to the temporary file at a time is set by the
   > > proxy_temp_file_write_size directive.
   > > The zero value disables buffering of responses to temporary files.
   > 
   > So when the request is out of in-memory buf, data will be saved into files.
   > 
   > Don't worry it's not a problem.
   
   Hi, could you please explain "it's not a problem"? Whether it's impact performance(If not why)? 
   
   And how can I disable the warning log?


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