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An nginx module for sending stats to statsd.

branch: master
README.mkd

nginx-statsd

An nginx module for sending statistics to statsd.

This is how to use the nginx-statsd module:

http {

    # Set the server that you want to send stats to.
    statsd_server your.statsd.server.com;

    # Randomly sample 10% of requests so that you do not overwhelm your statsd server.
    # Defaults to sending all statsd (100%). 
    statsd_sample_rate 10; # 10% of requests


    server {
        listen 80;
        server_name www.your.domain.com;

        # Increment "your_product.requests" by 1 whenever any request hits this server. 
        statsd_count "your_product.requests" 1;

        location / {

            # Increment the key by 1 when this location is hit.
            statsd_count "your_product.pages.index_requests" 1;

            # Increment the key by 1, but only if $request_completion is set to something.
            statsd_count "your_product.pages.index_responses" 1 "$request_completion";

            # Send a timing to "your_product.pages.index_response_time" equal to the value
            # returned from the upstream server. If this value evaluates to 0 or empty-string,
            # it will not be sent. Thus, there is no need to add a test.
            statsd_timing "your_product.pages.index_response_time" "$upstream_response_time";

            # Increment a key based on the value of a custom header. Only sends the value if
            # the custom header exists in the upstream response.
            statsd_count "your_product.custom_$upstream_http_x_some_custom_header" 1 
                "$upstream_http_x_some_custom_header";

            proxy_pass http://some.other.domain.com;
        }
    }
}
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