add info files and fix simple issues

AUTHORS.md

@@ -0,0 +1,13 @@
+The Prometheus project was started by Matt T. Proud (emeritus) and
+Julius Volz in 2012.
+
+Maintainers of this repository:
+
+* Brian Brazil <brian.brazil@boxever.com>
+* Johannes 'fish' Ziemke <github@freigeist.org>
+* Tobias Schmidt <ts@soundcloud.com>
+
+The following individuals have contributed code to this repository
+(listed in alphabetical order):
+
+* Eugene Chertikhin <e.chertikhin@crestwavetech.ru>

CONTRIBUTING.md

@@ -0,0 +1,18 @@
+# Contributing
+
+Prometheus uses GitHub to manage reviews of pull requests.
+
+* If you have a trivial fix or improvement, go ahead and create a pull
+  request, addressing (with `@...`) one or more of the maintainers
+  (see [AUTHORS.md](AUTHORS.md)) in the description of the pull request.
+
+* If you plan to do something more involved, first discuss your ideas
+  on our [mailing list](https://groups.google.com/forum/?fromgroups#!forum/prometheus-developers).
+  This will avoid unnecessary work and surely give you and us a good deal
+  of inspiration.
+
+* Relevant coding style guidelines are the [Go Code Review
+  Comments](https://code.google.com/p/go-wiki/wiki/CodeReviewComments)
+  and the _Formatting and style_ section of Peter Bourgon's [Go: Best
+  Practices for Production
+  Environments](http://peter.bourgon.org/go-in-production/#formatting-and-style).

Makefile

@@ -1,4 +1,4 @@
-# Copyright 2013 The Prometheus Authors
+# Copyright 2015 The Prometheus Authors
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at

NOTICE

@@ -1,5 +1,2 @@
-Exporter for mysql daemon
-by Eugene Chertikhin <e.chertikhin@crestwavetech.ru>
-
-This product includes software developed at
-SoundCloud Ltd. (http://soundcloud.com/).
+Exporter for MySQL daemon.
+Copyright 2015 The Prometheus Authors

README.md

@@ -7,6 +7,14 @@ Exporter for MySQL server metrics http://prometheus.io/
     make
     ./mysqld_exporter <flags>
 
+Flags description
+
+Name               | Description
+-------------------|------------
+web.listen-address | Address to listen on for web interface and telemetry.
+web.telemetry-path | Path under which to expose metrics.
+config.file        | Config file name with connection string
+
 ## Configuration
 The configuration is in JSON. An example with all possible options:
 ```
@@ -16,10 +24,5 @@ The configuration is in JSON. An example with all possible options:
    }
 }
 ```
-Name     | Description
----------|------------
-login    | Login name for connect with server
-password | Password for connect with server
-host     | Server hostname or ip. May be omitted
-dbname   | Name of database
 
+Format of connection string described at https://github.com/go-sql-driver/mysql#dsn-data-source-name

mysqld_exporter.go

@@ -8,6 +8,7 @@ import (
 	"net/http"
 	"strconv"
 	"sync"
+	"strings"
 
 	"database/sql"
 	_ "github.com/go-sql-driver/mysql"
@@ -20,7 +21,7 @@ const (
 )
 
 var (
-	listenAddress = flag.String("web.listen-address", ":9091", "Address to listen on for web interface and telemetry.")
+	listenAddress = flag.String("web.listen-address", ":9104", "Address to listen on for web interface and telemetry.")
 	metricPath    = flag.String("web.telemetry-path", "/metrics", "Path under which to expose metrics.")
 	configFile    = flag.String("config.file", "mysqld_exporter.conf", "Path to config file.")
 )
@@ -59,12 +60,12 @@ func NewMySQLExporter(config *Config) *Exporter {
 		}),
 		totalScrapes: prometheus.NewCounter(prometheus.CounterOpts{
 			Namespace: namespace,
-			Name:      "exporter_total_scrapes",
+			Name:      "exporter_scrapes_total",
 			Help:      "Current total mysqld scrapes.",
 		}),
 		errorScrapes: prometheus.NewCounter(prometheus.CounterOpts{
 			Namespace: namespace,
-			Name:      "exporter_error_scrapes",
+			Name:      "exporter_scrape_errors_total",
 			Help:      "Error mysqld scrapes.",
 		}),
 		metrics: map[string]prometheus.Gauge{},
@@ -139,7 +140,7 @@ func (e *Exporter) scrape(scrapes chan<- []string) {
 func (e *Exporter) setMetrics(scrapes <-chan []string) {
 	for row := range scrapes {
 
-		name := row[0]
+		name := strings.ToLower(row[0])
 		value, err := strconv.ParseInt(row[1], 10, 64)
 		if err != nil {
 			// not really important