Prometheus errors when parsing /metrics generated by nginx-lua-prometheus

[tomwilkie]

Entries like this appear:

nginx_http_request_duration_seconds_bucket{host="'"",le="00.010"} 1
nginx_http_request_duration_seconds_bucket{host="'"",le="00.020"} 1
nginx_http_request_duration_seconds_bucket{host="'"",le="00.030"} 1
nginx_http_request_duration_seconds_bucket{host="'"",le="00.050"} 1
nginx_http_request_duration_seconds_bucket{host="'"",le="00.075"} 1
nginx_http_request_duration_seconds_bucket{host="'"",le="00.100"} 1
nginx_http_request_duration_seconds_bucket{host="'"",le="00.200"} 1
nginx_http_request_duration_seconds_bucket{host="'"",le="00.300"} 1
nginx_http_request_duration_seconds_bucket{host="'"",le="00.400"} 1
nginx_http_request_duration_seconds_bucket{host="'"",le="00.500"} 1
nginx_http_request_duration_seconds_bucket{host="'"",le="00.750"} 1
nginx_http_request_duration_seconds_bucket{host="'"",le="01.000"} 1
nginx_http_request_duration_seconds_bucket{host="'"",le="01.500"} 1
nginx_http_request_duration_seconds_bucket{host="'"",le="02.000"} 1
nginx_http_request_duration_seconds_bucket{host="'"",le="03.000"} 1
nginx_http_request_duration_seconds_bucket{host="'"",le="04.000"} 1
nginx_http_request_duration_seconds_bucket{host="'"",le="05.000"} 1
nginx_http_request_duration_seconds_bucket{host="'"",le="10.000"} 1
nginx_http_request_duration_seconds_bucket{host="'"",le="+Inf"} 1

I believe it because someone did a drive-by (host header attack)[http://www.skeletonscribe.net/2013/05/practical-http-host-header-attacks.html] on us. Should really do some escaping...

[knyar]

Hi Tom! :)
Thanks for reporting this, I'll get it fixed later today.