Merge pull request #258 from knweiss/filefd

filefd collector

README.md

@@ -22,7 +22,7 @@ conntrack | Shows conntrack statistics (does nothing if no `/proc/sys/net/netfil
 cpu | Exposes CPU statistics | FreeBSD
 diskstats | Exposes disk I/O statistics from `/proc/diskstats`. | Linux
 entropy | Exposes available entropy. | Linux
-filefd | Exposes file descriptor statistics. | Linux
+filefd | Exposes file descriptor statistics from `/proc/sys/fs/file-nr`. | Linux
 filesystem | Exposes filesystem statistics, such as disk space used. | FreeBSD, Linux, OpenBSD
 loadavg | Exposes load average. | Darwin, Dragonfly, FreeBSD, Linux, NetBSD, OpenBSD, Solaris
 mdadm | Exposes statistics about devices in `/proc/mdstat` (does nothing if no `/proc/mdstat` present). | Linux

collector/filefd_linux.go

@@ -89,7 +89,7 @@ func parseFileFDStats(r io.Reader, fileName string) (map[string]string, error) {
 	var fileFDStat = map[string]string{}
 	// The file-nr proc is only 1 line with 3 values.
 	fileFDStat["allocated"] = line[0]
-	// The second value is skipped as it will alwasy be zero in linux 2.6.
+	// The second value is skipped as it will always be zero in linux 2.6.
 	fileFDStat["maximum"] = line[2]
 
 	return fileFDStat, nil