Fix rollover bug in mountstats collector (#1364)

* Update procfs vendor to pull in github.com/prometheus/procfs/pull/165 * Update mountstats collector to use new types. * Rollover counter automatically to avoid float64 accuracy issues. * Update e2e test. Signed-off-by: Ben Kochie <superq@gmail.com>
2024-12-28 23:19:46 -08:00 · 2019-05-31 18:30:37 +02:00 · 2019-05-31 18:30:37 +02:00 · 8146998945
parent 501ccf9fb4
commit 8146998945
21 changed files with 771 additions and 76 deletions
--- a/collector/fixtures/e2e-64k-page-output.txt
+++ b/collector/fixtures/e2e-64k-page-output.txt
@ -1577,6 +1577,7 @@ node_mountstats_nfs_event_write_extension_total{export="192.168.1.1:/srv/test",p
 node_mountstats_nfs_event_write_extension_total{export="192.168.1.1:/srv/test",protocol="udp"} 0
 # HELP node_mountstats_nfs_operations_major_timeouts_total Number of times a request has had a major timeout for a given operation.
 # TYPE node_mountstats_nfs_operations_major_timeouts_total counter
+node_mountstats_nfs_operations_major_timeouts_total{export="192.168.1.1:/srv/test",operation="ACCESS",protocol="udp"} 0
 node_mountstats_nfs_operations_major_timeouts_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="tcp"} 0
 node_mountstats_nfs_operations_major_timeouts_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="udp"} 0
 node_mountstats_nfs_operations_major_timeouts_total{export="192.168.1.1:/srv/test",operation="READ",protocol="tcp"} 0
@ -1585,6 +1586,7 @@ node_mountstats_nfs_operations_major_timeouts_total{export="192.168.1.1:/srv/tes
 node_mountstats_nfs_operations_major_timeouts_total{export="192.168.1.1:/srv/test",operation="WRITE",protocol="udp"} 0
 # HELP node_mountstats_nfs_operations_queue_time_seconds_total Duration all requests spent queued for transmission for a given operation before they were sent, in seconds.
 # TYPE node_mountstats_nfs_operations_queue_time_seconds_total counter
+node_mountstats_nfs_operations_queue_time_seconds_total{export="192.168.1.1:/srv/test",operation="ACCESS",protocol="udp"} 9.007044786793922e+12
 node_mountstats_nfs_operations_queue_time_seconds_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="tcp"} 0
 node_mountstats_nfs_operations_queue_time_seconds_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="udp"} 0
 node_mountstats_nfs_operations_queue_time_seconds_total{export="192.168.1.1:/srv/test",operation="READ",protocol="tcp"} 0.006
@ -1593,6 +1595,7 @@ node_mountstats_nfs_operations_queue_time_seconds_total{export="192.168.1.1:/srv
 node_mountstats_nfs_operations_queue_time_seconds_total{export="192.168.1.1:/srv/test",operation="WRITE",protocol="udp"} 0
 # HELP node_mountstats_nfs_operations_received_bytes_total Number of bytes received for a given operation, including RPC headers and payload.
 # TYPE node_mountstats_nfs_operations_received_bytes_total counter
+node_mountstats_nfs_operations_received_bytes_total{export="192.168.1.1:/srv/test",operation="ACCESS",protocol="udp"} 3.62996810236e+11
 node_mountstats_nfs_operations_received_bytes_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="tcp"} 0
 node_mountstats_nfs_operations_received_bytes_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="udp"} 0
 node_mountstats_nfs_operations_received_bytes_total{export="192.168.1.1:/srv/test",operation="READ",protocol="tcp"} 1.210292152e+09
@ -1601,6 +1604,7 @@ node_mountstats_nfs_operations_received_bytes_total{export="192.168.1.1:/srv/tes
 node_mountstats_nfs_operations_received_bytes_total{export="192.168.1.1:/srv/test",operation="WRITE",protocol="udp"} 0
 # HELP node_mountstats_nfs_operations_request_time_seconds_total Duration all requests took from when a request was enqueued to when it was completely handled for a given operation, in seconds.
 # TYPE node_mountstats_nfs_operations_request_time_seconds_total counter
+node_mountstats_nfs_operations_request_time_seconds_total{export="192.168.1.1:/srv/test",operation="ACCESS",protocol="udp"} 1.953587717e+06
 node_mountstats_nfs_operations_request_time_seconds_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="tcp"} 0
 node_mountstats_nfs_operations_request_time_seconds_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="udp"} 0
 node_mountstats_nfs_operations_request_time_seconds_total{export="192.168.1.1:/srv/test",operation="READ",protocol="tcp"} 79.407
@ -1609,6 +1613,7 @@ node_mountstats_nfs_operations_request_time_seconds_total{export="192.168.1.1:/s
 node_mountstats_nfs_operations_request_time_seconds_total{export="192.168.1.1:/srv/test",operation="WRITE",protocol="udp"} 0
 # HELP node_mountstats_nfs_operations_requests_total Number of requests performed for a given operation.
 # TYPE node_mountstats_nfs_operations_requests_total counter
+node_mountstats_nfs_operations_requests_total{export="192.168.1.1:/srv/test",operation="ACCESS",protocol="udp"} 2.927395007e+09
 node_mountstats_nfs_operations_requests_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="tcp"} 0
 node_mountstats_nfs_operations_requests_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="udp"} 0
 node_mountstats_nfs_operations_requests_total{export="192.168.1.1:/srv/test",operation="READ",protocol="tcp"} 1298
@ -1617,6 +1622,7 @@ node_mountstats_nfs_operations_requests_total{export="192.168.1.1:/srv/test",ope
 node_mountstats_nfs_operations_requests_total{export="192.168.1.1:/srv/test",operation="WRITE",protocol="udp"} 0
 # HELP node_mountstats_nfs_operations_response_time_seconds_total Duration all requests took to get a reply back after a request for a given operation was transmitted, in seconds.
 # TYPE node_mountstats_nfs_operations_response_time_seconds_total counter
+node_mountstats_nfs_operations_response_time_seconds_total{export="192.168.1.1:/srv/test",operation="ACCESS",protocol="udp"} 1.667369447e+06
 node_mountstats_nfs_operations_response_time_seconds_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="tcp"} 0
 node_mountstats_nfs_operations_response_time_seconds_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="udp"} 0
 node_mountstats_nfs_operations_response_time_seconds_total{export="192.168.1.1:/srv/test",operation="READ",protocol="tcp"} 79.386
@ -1625,6 +1631,7 @@ node_mountstats_nfs_operations_response_time_seconds_total{export="192.168.1.1:/
 node_mountstats_nfs_operations_response_time_seconds_total{export="192.168.1.1:/srv/test",operation="WRITE",protocol="udp"} 0
 # HELP node_mountstats_nfs_operations_sent_bytes_total Number of bytes sent for a given operation, including RPC headers and payload.
 # TYPE node_mountstats_nfs_operations_sent_bytes_total counter
+node_mountstats_nfs_operations_sent_bytes_total{export="192.168.1.1:/srv/test",operation="ACCESS",protocol="udp"} 5.26931094212e+11
 node_mountstats_nfs_operations_sent_bytes_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="tcp"} 0
 node_mountstats_nfs_operations_sent_bytes_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="udp"} 0
 node_mountstats_nfs_operations_sent_bytes_total{export="192.168.1.1:/srv/test",operation="READ",protocol="tcp"} 207680
@ -1633,6 +1640,7 @@ node_mountstats_nfs_operations_sent_bytes_total{export="192.168.1.1:/srv/test",o
 node_mountstats_nfs_operations_sent_bytes_total{export="192.168.1.1:/srv/test",operation="WRITE",protocol="udp"} 0
 # HELP node_mountstats_nfs_operations_transmissions_total Number of times an actual RPC request has been transmitted for a given operation.
 # TYPE node_mountstats_nfs_operations_transmissions_total counter
+node_mountstats_nfs_operations_transmissions_total{export="192.168.1.1:/srv/test",operation="ACCESS",protocol="udp"} 2.927394995e+09
 node_mountstats_nfs_operations_transmissions_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="tcp"} 0
 node_mountstats_nfs_operations_transmissions_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="udp"} 0
 node_mountstats_nfs_operations_transmissions_total{export="192.168.1.1:/srv/test",operation="READ",protocol="tcp"} 1298
--- a/collector/fixtures/e2e-output.txt
+++ b/collector/fixtures/e2e-output.txt
@ -1577,6 +1577,7 @@ node_mountstats_nfs_event_write_extension_total{export="192.168.1.1:/srv/test",p
 node_mountstats_nfs_event_write_extension_total{export="192.168.1.1:/srv/test",protocol="udp"} 0
 # HELP node_mountstats_nfs_operations_major_timeouts_total Number of times a request has had a major timeout for a given operation.
 # TYPE node_mountstats_nfs_operations_major_timeouts_total counter
+node_mountstats_nfs_operations_major_timeouts_total{export="192.168.1.1:/srv/test",operation="ACCESS",protocol="udp"} 0
 node_mountstats_nfs_operations_major_timeouts_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="tcp"} 0
 node_mountstats_nfs_operations_major_timeouts_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="udp"} 0
 node_mountstats_nfs_operations_major_timeouts_total{export="192.168.1.1:/srv/test",operation="READ",protocol="tcp"} 0
@ -1585,6 +1586,7 @@ node_mountstats_nfs_operations_major_timeouts_total{export="192.168.1.1:/srv/tes
 node_mountstats_nfs_operations_major_timeouts_total{export="192.168.1.1:/srv/test",operation="WRITE",protocol="udp"} 0
 # HELP node_mountstats_nfs_operations_queue_time_seconds_total Duration all requests spent queued for transmission for a given operation before they were sent, in seconds.
 # TYPE node_mountstats_nfs_operations_queue_time_seconds_total counter
+node_mountstats_nfs_operations_queue_time_seconds_total{export="192.168.1.1:/srv/test",operation="ACCESS",protocol="udp"} 9.007044786793922e+12
 node_mountstats_nfs_operations_queue_time_seconds_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="tcp"} 0
 node_mountstats_nfs_operations_queue_time_seconds_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="udp"} 0
 node_mountstats_nfs_operations_queue_time_seconds_total{export="192.168.1.1:/srv/test",operation="READ",protocol="tcp"} 0.006
@ -1593,6 +1595,7 @@ node_mountstats_nfs_operations_queue_time_seconds_total{export="192.168.1.1:/srv
 node_mountstats_nfs_operations_queue_time_seconds_total{export="192.168.1.1:/srv/test",operation="WRITE",protocol="udp"} 0
 # HELP node_mountstats_nfs_operations_received_bytes_total Number of bytes received for a given operation, including RPC headers and payload.
 # TYPE node_mountstats_nfs_operations_received_bytes_total counter
+node_mountstats_nfs_operations_received_bytes_total{export="192.168.1.1:/srv/test",operation="ACCESS",protocol="udp"} 3.62996810236e+11
 node_mountstats_nfs_operations_received_bytes_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="tcp"} 0
 node_mountstats_nfs_operations_received_bytes_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="udp"} 0
 node_mountstats_nfs_operations_received_bytes_total{export="192.168.1.1:/srv/test",operation="READ",protocol="tcp"} 1.210292152e+09
@ -1601,6 +1604,7 @@ node_mountstats_nfs_operations_received_bytes_total{export="192.168.1.1:/srv/tes
 node_mountstats_nfs_operations_received_bytes_total{export="192.168.1.1:/srv/test",operation="WRITE",protocol="udp"} 0
 # HELP node_mountstats_nfs_operations_request_time_seconds_total Duration all requests took from when a request was enqueued to when it was completely handled for a given operation, in seconds.
 # TYPE node_mountstats_nfs_operations_request_time_seconds_total counter
+node_mountstats_nfs_operations_request_time_seconds_total{export="192.168.1.1:/srv/test",operation="ACCESS",protocol="udp"} 1.953587717e+06
 node_mountstats_nfs_operations_request_time_seconds_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="tcp"} 0
 node_mountstats_nfs_operations_request_time_seconds_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="udp"} 0
 node_mountstats_nfs_operations_request_time_seconds_total{export="192.168.1.1:/srv/test",operation="READ",protocol="tcp"} 79.407
@ -1609,6 +1613,7 @@ node_mountstats_nfs_operations_request_time_seconds_total{export="192.168.1.1:/s
 node_mountstats_nfs_operations_request_time_seconds_total{export="192.168.1.1:/srv/test",operation="WRITE",protocol="udp"} 0
 # HELP node_mountstats_nfs_operations_requests_total Number of requests performed for a given operation.
 # TYPE node_mountstats_nfs_operations_requests_total counter
+node_mountstats_nfs_operations_requests_total{export="192.168.1.1:/srv/test",operation="ACCESS",protocol="udp"} 2.927395007e+09
 node_mountstats_nfs_operations_requests_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="tcp"} 0
 node_mountstats_nfs_operations_requests_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="udp"} 0
 node_mountstats_nfs_operations_requests_total{export="192.168.1.1:/srv/test",operation="READ",protocol="tcp"} 1298
@ -1617,6 +1622,7 @@ node_mountstats_nfs_operations_requests_total{export="192.168.1.1:/srv/test",ope
 node_mountstats_nfs_operations_requests_total{export="192.168.1.1:/srv/test",operation="WRITE",protocol="udp"} 0
 # HELP node_mountstats_nfs_operations_response_time_seconds_total Duration all requests took to get a reply back after a request for a given operation was transmitted, in seconds.
 # TYPE node_mountstats_nfs_operations_response_time_seconds_total counter
+node_mountstats_nfs_operations_response_time_seconds_total{export="192.168.1.1:/srv/test",operation="ACCESS",protocol="udp"} 1.667369447e+06
 node_mountstats_nfs_operations_response_time_seconds_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="tcp"} 0
 node_mountstats_nfs_operations_response_time_seconds_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="udp"} 0
 node_mountstats_nfs_operations_response_time_seconds_total{export="192.168.1.1:/srv/test",operation="READ",protocol="tcp"} 79.386
@ -1625,6 +1631,7 @@ node_mountstats_nfs_operations_response_time_seconds_total{export="192.168.1.1:/
 node_mountstats_nfs_operations_response_time_seconds_total{export="192.168.1.1:/srv/test",operation="WRITE",protocol="udp"} 0
 # HELP node_mountstats_nfs_operations_sent_bytes_total Number of bytes sent for a given operation, including RPC headers and payload.
 # TYPE node_mountstats_nfs_operations_sent_bytes_total counter
+node_mountstats_nfs_operations_sent_bytes_total{export="192.168.1.1:/srv/test",operation="ACCESS",protocol="udp"} 5.26931094212e+11
 node_mountstats_nfs_operations_sent_bytes_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="tcp"} 0
 node_mountstats_nfs_operations_sent_bytes_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="udp"} 0
 node_mountstats_nfs_operations_sent_bytes_total{export="192.168.1.1:/srv/test",operation="READ",protocol="tcp"} 207680
@ -1633,6 +1640,7 @@ node_mountstats_nfs_operations_sent_bytes_total{export="192.168.1.1:/srv/test",o
 node_mountstats_nfs_operations_sent_bytes_total{export="192.168.1.1:/srv/test",operation="WRITE",protocol="udp"} 0
 # HELP node_mountstats_nfs_operations_transmissions_total Number of times an actual RPC request has been transmitted for a given operation.
 # TYPE node_mountstats_nfs_operations_transmissions_total counter
+node_mountstats_nfs_operations_transmissions_total{export="192.168.1.1:/srv/test",operation="ACCESS",protocol="udp"} 2.927394995e+09
 node_mountstats_nfs_operations_transmissions_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="tcp"} 0
 node_mountstats_nfs_operations_transmissions_total{export="192.168.1.1:/srv/test",operation="NULL",protocol="udp"} 0
 node_mountstats_nfs_operations_transmissions_total{export="192.168.1.1:/srv/test",operation="READ",protocol="tcp"} 1298
--- a/collector/fixtures/proc/10/mountstats
+++ b/collector/fixtures/proc/10/mountstats
@ -31,6 +31,7 @@ device 192.168.1.1:/srv/test mounted on /mnt/nfs/test-dupe with fstype nfs4 stat
 	        NULL: 0 0 0 0 0 0 0 0
 	        READ: 1298 1298 0 207680 1210292152 6 79386 79407
 	       WRITE: 0 0 0 0 0 0 0 0
+	      ACCESS: 2927395007 2927394995 0 526931094212 362996810236 18446743919241604546 1667369447 1953587717

 device 192.168.1.1:/srv/test mounted on /mnt/nfs/test-dupe with fstype nfs4 statvers=1.1
 	opts:	rw,vers=4.0,rsize=1048576,wsize=1048576,namlen=255,acregmin=3,acregmax=60,acdirmin=30,acdirmax=60,hard,proto=udp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=192.168.1.5,local_lock=none
@ -46,3 +47,4 @@ device 192.168.1.1:/srv/test mounted on /mnt/nfs/test-dupe with fstype nfs4 stat
 	        NULL: 0 0 0 0 0 0 0 0
 	        READ: 1298 1298 0 207680 1210292152 6 79386 79407
 	       WRITE: 0 0 0 0 0 0 0 0
+	      ACCESS: 2927395007 2927394995 0 526931094212 362996810236 18446743919241604546 1667369447 1953587717
--- a/collector/mountstats_linux.go
+++ b/collector/mountstats_linux.go
@ -21,6 +21,11 @@ import (
 	"github.com/prometheus/procfs"
 )

+var (
+	// 64-bit float mantissa: https://en.wikipedia.org/wiki/Double-precision_floating-point_format
+	float64Mantissa uint64 = 9007199254740992
+)
+
 type mountStatsCollector struct {
 	// General statistics
 	NFSAgeSecondsTotal *prometheus.Desc
@ -618,7 +623,7 @@ func (c *mountStatsCollector) updateNFSStats(ch chan<- prometheus.Metric, export
 	ch <- prometheus.MustNewConstMetric(
 		c.NFSTransportIdleTimeSeconds,
 		prometheus.GaugeValue,
-		s.Transport.IdleTime.Seconds(),
+		float64(s.Transport.IdleTimeSeconds%float64Mantissa),
 		export,
 		protocol,
 	)
@ -728,7 +733,7 @@ func (c *mountStatsCollector) updateNFSStats(ch chan<- prometheus.Metric, export
 		ch <- prometheus.MustNewConstMetric(
 			c.NFSOperationsQueueTimeSecondsTotal,
 			prometheus.CounterValue,
-			op.CumulativeQueueTime.Seconds(),
+			float64(op.CumulativeQueueMilliseconds%float64Mantissa)/1000.0,
 			export,
 			protocol,
 			op.Operation,
@ -737,7 +742,7 @@ func (c *mountStatsCollector) updateNFSStats(ch chan<- prometheus.Metric, export
 		ch <- prometheus.MustNewConstMetric(
 			c.NFSOperationsResponseTimeSecondsTotal,
 			prometheus.CounterValue,
-			op.CumulativeTotalResponseTime.Seconds(),
+			float64(op.CumulativeTotalResponseMilliseconds%float64Mantissa)/1000.0,
 			export,
 			protocol,
 			op.Operation,
@ -746,7 +751,7 @@ func (c *mountStatsCollector) updateNFSStats(ch chan<- prometheus.Metric, export
 		ch <- prometheus.MustNewConstMetric(
 			c.NFSOperationsRequestTimeSecondsTotal,
 			prometheus.CounterValue,
-			op.CumulativeTotalRequestTime.Seconds(),
+			float64(op.CumulativeTotalRequestMilliseconds%float64Mantissa)/1000.0,
 			export,
 			protocol,
 			op.Operation,
--- a/go.mod
+++ b/go.mod
@ -18,7 +18,7 @@ require (
 	github.com/prometheus/client_golang v0.9.2
 	github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90
 	github.com/prometheus/common v0.3.0
-	github.com/prometheus/procfs v0.0.0-20190507043628-bc6930f2d510
+	github.com/prometheus/procfs v0.0.0-20190529155944-65bdadfa96ae
 	github.com/siebenmann/go-kstat v0.0.0-20160321171754-d34789b79745
 	github.com/sirupsen/logrus v1.4.1 // indirect
 	github.com/soundcloud/go-runit v0.0.0-20150630195641-06ad41a06c4a
--- a/go.sum
+++ b/go.sum
@ -65,8 +65,8 @@ github.com/prometheus/common v0.3.0 h1:taZ4h8Tkxv2kNyoSctBvfXEHmBmxrwmIidZTIaHon
 github.com/prometheus/common v0.3.0/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
 github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
 github.com/prometheus/procfs v0.0.0-20181204211112-1dc9a6cbc91a/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
-github.com/prometheus/procfs v0.0.0-20190507043628-bc6930f2d510 h1:xDFyJxLucSC7yg81N/VozfnSEEB2dRj1VgR/YEzl5dA=
-github.com/prometheus/procfs v0.0.0-20190507043628-bc6930f2d510/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
+github.com/prometheus/procfs v0.0.0-20190529155944-65bdadfa96ae h1:kF6Y/ES9NQmW3t400V0XH+lO1jqvCpXBC1XoLDkvuMM=
+github.com/prometheus/procfs v0.0.0-20190529155944-65bdadfa96ae/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
 github.com/siebenmann/go-kstat v0.0.0-20160321171754-d34789b79745 h1:IuH7WumZNax0D+rEqmy2TyhKCzrtMGqbZO0b8rO00JA=
 github.com/siebenmann/go-kstat v0.0.0-20160321171754-d34789b79745/go.mod h1:G81aIFAMS9ECrwBYR9YxhlPjWgrItd+Kje78O6+uqm8=
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
--- a/vendor/github.com/prometheus/procfs/MAINTAINERS.md
+++ b/vendor/github.com/prometheus/procfs/MAINTAINERS.md
@ -1,2 +1,2 @@
-* Tobias Schmidt <tobidt@gmail.com> @grobie
 * Johannes 'fish' Ziemke <github@freigeist.org> @discordianfish
+* Paul Gier <pgier@redhat.com> @pgier
--- a/vendor/github.com/prometheus/procfs/Makefile
+++ b/vendor/github.com/prometheus/procfs/Makefile
@ -14,6 +14,7 @@
 include Makefile.common

 %/.unpacked: %.ttar
+	@echo ">> extracting fixtures"
 	./ttar -C $(dir $*) -x -f $*.ttar
 	touch $@

--- a/vendor/github.com/prometheus/procfs/Makefile.common
+++ b/vendor/github.com/prometheus/procfs/Makefile.common
@ -69,7 +69,7 @@ else
 	GO_BUILD_PLATFORM ?= $(GOHOSTOS)-$(GOHOSTARCH)
 endif

-PROMU_VERSION ?= 0.3.0
+PROMU_VERSION ?= 0.4.0
 PROMU_URL     := https://github.com/prometheus/promu/releases/download/v$(PROMU_VERSION)/promu-$(PROMU_VERSION).$(GO_BUILD_PLATFORM).tar.gz

 GOLANGCI_LINT :=
--- a/vendor/github.com/prometheus/procfs/README.md
+++ b/vendor/github.com/prometheus/procfs/README.md
@ -1,7 +1,7 @@
 # procfs

 This procfs package provides functions to retrieve system, kernel and process
-metrics from the pseudo-filesystem proc.
+metrics from the pseudo-filesystems /proc and /sys.

 *WARNING*: This package is a work in progress. Its API may still break in
 backwards-incompatible ways without warnings. Use it at your own risk.
@ -9,3 +9,38 @@ backwards-incompatible ways without warnings. Use it at your own risk.
 [![GoDoc](https://godoc.org/github.com/prometheus/procfs?status.png)](https://godoc.org/github.com/prometheus/procfs)
 [![Build Status](https://travis-ci.org/prometheus/procfs.svg?branch=master)](https://travis-ci.org/prometheus/procfs)
 [![Go Report Card](https://goreportcard.com/badge/github.com/prometheus/procfs)](https://goreportcard.com/report/github.com/prometheus/procfs)
+
+## Usage
+
+The procfs library is organized by packages based on whether the gathered data is coming from
+/proc, /sys, or both.  Each package contains an `FS` type which represents the path to either /proc, /sys, or both.  For example, current cpu statistics are gathered from
+`/proc/stat` and are available via the root procfs package.  First, the proc filesystem mount
+point is initialized, and then the stat information is read.
+
+```go
+fs, err := procfs.NewFS("/proc")
+stats, err := fs.NewStat()
+```
+
+## Building and Testing
+
+The procfs library is normally built as part of another application.  However, when making
+changes to the library, the `make test` command can be used to run the API test suite.
+
+### Updating Test Fixtures
+
+The procfs library includes a set of test fixtures which include many example files from
+the `/proc` and `/sys` filesystems.  These fixtures are included as a ttar (text tar) file
+which is extracted automatically during testing.  To add/update the test fixtures, first
+ensure the `fixtures` directory is up to date by removing the existing directory and then
+extracting the ttar file using `make fixtures/.unpacked` or just `make test`.
+
+```bash
+rm -rf fixtures
+make test
+```
+
+Next, make the required changes to the extracted files in the `fixtures` directory.  When
+the changes are complete, run `make update_fixtures` to create a new `fixtures.ttar` file
+based on the updated `fixtures` directory.  And finally, verify the changes using
+`git diff fixtures.ttar`.
--- a/vendor/github.com/prometheus/procfs/fixtures.ttar
+++ b/vendor/github.com/prometheus/procfs/fixtures.ttar
@ -75,13 +75,13 @@ Max realtime timeout      unlimited            unlimited            us
 Mode: 644
 # ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 Path: fixtures/proc/26231/mountstats
-Lines: 19
+Lines: 20
 device rootfs mounted on / with fstype rootfs
 device sysfs mounted on /sys with fstype sysfs
 device proc mounted on /proc with fstype proc
 device /dev/sda1 mounted on / with fstype ext4
 device 192.168.1.1:/srv/test mounted on /mnt/nfs/test with fstype nfs4 statvers=1.1
-	opts:	rw,vers=4.0,rsize=1048576,wsize=1048576,namlen=255,acregmin=3,acregmax=60,acdirmin=30,acdirmax=60,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=192.168.1.5,local_lock=none
+	opts:	rw,vers=4.0,rsize=1048576,wsize=1048576,namlen=255,acregmin=3,acregmax=60,acdirmin=30,acdirmax=60,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,mountaddr=192.168.1.1,clientaddr=192.168.1.5,local_lock=none
 	age:	13968
 	caps:	caps=0xfff7,wtmult=512,dtsize=32768,bsize=0,namlen=255
 	nfsv4:	bm0=0xfdffafff,bm1=0xf9be3e,bm2=0x0,acl=0x0,pnfs=not configured
@ -94,6 +94,7 @@ device 192.168.1.1:/srv/test mounted on /mnt/nfs/test with fstype nfs4 statvers=
 	        NULL: 0 0 0 0 0 0 0 0
 	        READ: 1298 1298 0 207680 1210292152 6 79386 79407
 	       WRITE: 0 0 0 0 0 0 0 0
+	      ACCESS: 2927395007 2927394995 0 526931094212 362996810236 18446743919241604546 1667369447 1953587717

 Mode: 644
 # ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
@ -125,6 +126,63 @@ Lines: 1
 26231 (vim) R 5392 7446 5392 34835 7446 4218880 32533 309516 26 82 1677 44 158 99 20 0 1 0 82375 56274944 1981 18446744073709551615 4194304 6294284 140736914091744 140736914087944 139965136429984 0 0 12288 1870679807 0 0 0 17 0 0 0 31 0 0 8391624 8481048 16420864 140736914093252 140736914093279 140736914093279 140736914096107 0
 Mode: 644
 # ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: fixtures/proc/26231/status
+Lines: 53
+
+Name:	prometheus
+Umask:	0022
+State:	S (sleeping)
+Tgid:	1
+Ngid:	0
+Pid:	1
+PPid:	0
+TracerPid:	0
+Uid:	0	0	0	0
+Gid:	0	0	0	0
+FDSize:	128
+Groups:
+NStgid:	1
+NSpid:	1
+NSpgid:	1
+NSsid:	1
+VmPeak:	   58472 kB
+VmSize:	   58440 kB
+VmLck:	       0 kB
+VmPin:	       0 kB
+VmHWM:	    8028 kB
+VmRSS:	    6716 kB
+RssAnon:	    2092 kB
+RssFile:	    4624 kB
+RssShmem:	       0 kB
+VmData:	    2580 kB
+VmStk:	     136 kB
+VmExe:	     948 kB
+VmLib:	    6816 kB
+VmPTE:	     128 kB
+VmPMD:	      12 kB
+VmSwap:	     660 kB
+HugetlbPages:	       0 kB
+Threads:	1
+SigQ:	8/63965
+SigPnd:	0000000000000000
+ShdPnd:	0000000000000000
+SigBlk:	7be3c0fe28014a03
+SigIgn:	0000000000001000
+SigCgt:	00000001800004ec
+CapInh:	0000000000000000
+CapPrm:	0000003fffffffff
+CapEff:	0000003fffffffff
+CapBnd:	0000003fffffffff
+CapAmb:	0000000000000000
+Seccomp:	0
+Cpus_allowed:	ff
+Cpus_allowed_list:	0-7
+Mems_allowed:	00000000,00000001
+Mems_allowed_list:	0
+voluntary_ctxt_switches:	4742839
+nonvoluntary_ctxt_switches:	1727500
+Mode: 644
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 Directory: fixtures/proc/26232
 Mode: 755
 # ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
@ -402,6 +460,26 @@ proc4 2 2 10853
 proc4ops 72 0 0 0 1098 2 0 0 0 0 8179 5896 0 0 0 0 5900 0 0 2 0 2 0 9609 0 2 150 1272 0 0 0 1236 0 0 0 0 3 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
 Mode: 644
 # ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: fixtures/proc/net/unix
+Lines: 6
+Num       RefCount Protocol Flags    Type St Inode Path
+0000000000000000: 00000002 00000000 00010000 0001 01 3442596 /var/run/postgresql/.s.PGSQL.5432
+0000000000000000: 0000000a 00000000 00010000 0005 01 10061 /run/udev/control
+0000000000000000: 00000007 00000000 00000000 0002 01 12392 /dev/log
+0000000000000000: 00000003 00000000 00000000 0001 03 4787297 /var/run/postgresql/.s.PGSQL.5432
+0000000000000000: 00000003 00000000 00000000 0001 03 5091797
+Mode: 644
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: fixtures/proc/net/unix_without_inode
+Lines: 6
+Num       RefCount Protocol Flags    Type St Path
+0000000000000000: 00000002 00000000 00010000 0001 01 /var/run/postgresql/.s.PGSQL.5432
+0000000000000000: 0000000a 00000000 00010000 0005 01 /run/udev/control
+0000000000000000: 00000007 00000000 00000000 0002 01 /dev/log
+0000000000000000: 00000003 00000000 00000000 0001 03 /var/run/postgresql/.s.PGSQL.5432
+0000000000000000: 00000003 00000000 00000000 0001 03
+Mode: 644
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 Path: fixtures/proc/net/xfrm_stat
 Lines: 28
 XfrmInError                     1
@ -1107,6 +1185,22 @@ Mode: 644
 Directory: fixtures/sys/devices/system
 Mode: 775
 # ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Directory: fixtures/sys/devices/system/clocksource
+Mode: 775
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Directory: fixtures/sys/devices/system/clocksource/clocksource0
+Mode: 775
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: fixtures/sys/devices/system/clocksource/clocksource0/available_clocksource
+Lines: 1
+tsc hpet acpi_pm 
+Mode: 444
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: fixtures/sys/devices/system/clocksource/clocksource0/current_clocksource
+Lines: 1
+tsc
+Mode: 644
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 Directory: fixtures/sys/devices/system/cpu
 Mode: 775
 # ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
--- a/vendor/github.com/prometheus/procfs/fs.go
+++ b/vendor/github.com/prometheus/procfs/fs.go
@ -27,7 +27,7 @@ type FS struct {
 const DefaultMountPoint = fs.DefaultProcMountPoint

 // NewFS returns a new proc FS mounted under the given proc mountPoint. It will error
-// if the mount point dirctory can't be read or is a file.
+// if the mount point directory can't be read or is a file.
 func NewFS(mountPoint string) (FS, error) {
 	fs, err := fs.NewFS(mountPoint)
 	if err != nil {
--- a/vendor/github.com/prometheus/procfs/mountstats.go
+++ b/vendor/github.com/prometheus/procfs/mountstats.go
@ -69,8 +69,8 @@ type MountStats interface {
 type MountStatsNFS struct {
 	// The version of statistics provided.
 	StatVersion string
-	// The optional mountaddr of the NFS mount.
-	MountAddress string
+	// The mount options of the NFS mount.
+	Opts map[string]string
 	// The age of the NFS mount.
 	Age time.Duration
 	// Statistics related to byte counters for various operations.
@ -181,11 +181,11 @@ type NFSOperationStats struct {
 	// Number of bytes received for this operation, including RPC headers and payload.
 	BytesReceived uint64
 	// Duration all requests spent queued for transmission before they were sent.
-	CumulativeQueueTime time.Duration
+	CumulativeQueueMilliseconds uint64
 	// Duration it took to get a reply back after the request was transmitted.
-	CumulativeTotalResponseTime time.Duration
+	CumulativeTotalResponseMilliseconds uint64
 	// Duration from when a request was enqueued to when it was completely handled.
-	CumulativeTotalRequestTime time.Duration
+	CumulativeTotalRequestMilliseconds uint64
 }

 // A NFSTransportStats contains statistics for the NFS mount RPC requests and
@ -204,7 +204,7 @@ type NFSTransportStats struct {
 	// spent waiting for connections to the server to be established.
 	ConnectIdleTime uint64
 	// Duration since the NFS mount last saw any RPC traffic.
-	IdleTime time.Duration
+	IdleTimeSeconds uint64
 	// Number of RPC requests for this mount sent to the NFS server.
 	Sends uint64
 	// Number of RPC responses for this mount received from the NFS server.
@ -342,10 +342,15 @@ func parseMountStatsNFS(s *bufio.Scanner, statVersion string) (*MountStatsNFS, e

 		switch ss[0] {
 		case fieldOpts:
+			if stats.Opts == nil {
+				stats.Opts = map[string]string{}
+			}
 			for _, opt := range strings.Split(ss[1], ",") {
 				split := strings.Split(opt, "=")
-				if len(split) == 2 && split[0] == "mountaddr" {
-					stats.MountAddress = split[1]
+				if len(split) == 2 {
+					stats.Opts[split[0]] = split[1]
+				} else {
+					stats.Opts[opt] = ""
 				}
 			}
 		case fieldAge:
@ -525,9 +530,9 @@ func parseNFSOperationStats(s *bufio.Scanner) ([]NFSOperationStats, error) {
 			MajorTimeouts:                       ns[2],
 			BytesSent:                           ns[3],
 			BytesReceived:                       ns[4],
-			CumulativeQueueTime:         time.Duration(ns[5]) * time.Millisecond,
-			CumulativeTotalResponseTime: time.Duration(ns[6]) * time.Millisecond,
-			CumulativeTotalRequestTime:  time.Duration(ns[7]) * time.Millisecond,
+			CumulativeQueueMilliseconds:         ns[5],
+			CumulativeTotalResponseMilliseconds: ns[6],
+			CumulativeTotalRequestMilliseconds:  ns[7],
 		})
 	}

@ -603,7 +608,7 @@ func parseNFSTransportStats(ss []string, statVersion string) (*NFSTransportStats
 		Bind:                     ns[1],
 		Connect:                  ns[2],
 		ConnectIdleTime:          ns[3],
-		IdleTime:                 time.Duration(ns[4]) * time.Second,
+		IdleTimeSeconds:          ns[4],
 		Sends:                    ns[5],
 		Receives:                 ns[6],
 		BadTransactionIDs:        ns[7],
--- a/vendor/github.com/prometheus/procfs/net_dev.go
+++ b/vendor/github.com/prometheus/procfs/net_dev.go
@ -75,7 +75,7 @@ func newNetDev(file string) (NetDev, error) {
 	}
 	defer f.Close()

-	nd := NetDev{}
+	netDev := NetDev{}
 	s := bufio.NewScanner(f)
 	for n := 0; s.Scan(); n++ {
 		// Skip the 2 header lines.
@ -83,20 +83,20 @@ func newNetDev(file string) (NetDev, error) {
 			continue
 		}

-		line, err := nd.parseLine(s.Text())
+		line, err := netDev.parseLine(s.Text())
 		if err != nil {
-			return nd, err
+			return netDev, err
 		}

-		nd[line.Name] = *line
+		netDev[line.Name] = *line
 	}

-	return nd, s.Err()
+	return netDev, s.Err()
 }

 // parseLine parses a single line from the /proc/net/dev file. Header lines
 // must be filtered prior to calling this method.
-func (nd NetDev) parseLine(rawLine string) (*NetDevLine, error) {
+func (netDev NetDev) parseLine(rawLine string) (*NetDevLine, error) {
 	parts := strings.SplitN(rawLine, ":", 2)
 	if len(parts) != 2 {
 		return nil, errors.New("invalid net/dev line, missing colon")
@ -185,11 +185,11 @@ func (nd NetDev) parseLine(rawLine string) (*NetDevLine, error) {

 // Total aggregates the values across interfaces and returns a new NetDevLine.
 // The Name field will be a sorted comma separated list of interface names.
-func (nd NetDev) Total() NetDevLine {
+func (netDev NetDev) Total() NetDevLine {
 	total := NetDevLine{}

-	names := make([]string, 0, len(nd))
-	for _, ifc := range nd {
+	names := make([]string, 0, len(netDev))
+	for _, ifc := range netDev {
 		names = append(names, ifc.Name)
 		total.RxBytes += ifc.RxBytes
 		total.RxPackets += ifc.RxPackets
--- a/vendor/github.com/prometheus/procfs/net_unix.go
+++ b/vendor/github.com/prometheus/procfs/net_unix.go
@ -0,0 +1,275 @@
+// Copyright 2018 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
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package procfs
+
+import (
+	"bufio"
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"strconv"
+	"strings"
+)
+
+// For the proc file format details,
+// see https://elixir.bootlin.com/linux/v4.17/source/net/unix/af_unix.c#L2815
+// and https://elixir.bootlin.com/linux/latest/source/include/uapi/linux/net.h#L48.
+
+const (
+	netUnixKernelPtrIdx = iota
+	netUnixRefCountIdx
+	_
+	netUnixFlagsIdx
+	netUnixTypeIdx
+	netUnixStateIdx
+	netUnixInodeIdx
+
+	// Inode and Path are optional.
+	netUnixStaticFieldsCnt = 6
+)
+
+const (
+	netUnixTypeStream    = 1
+	netUnixTypeDgram     = 2
+	netUnixTypeSeqpacket = 5
+
+	netUnixFlagListen = 1 << 16
+
+	netUnixStateUnconnected  = 1
+	netUnixStateConnecting   = 2
+	netUnixStateConnected    = 3
+	netUnixStateDisconnected = 4
+)
+
+var errInvalidKernelPtrFmt = errors.New("Invalid Num(the kernel table slot number) format")
+
+// NetUnixType is the type of the type field.
+type NetUnixType uint64
+
+// NetUnixFlags is the type of the flags field.
+type NetUnixFlags uint64
+
+// NetUnixState is the type of the state field.
+type NetUnixState uint64
+
+// NetUnixLine represents a line of /proc/net/unix.
+type NetUnixLine struct {
+	KernelPtr string
+	RefCount  uint64
+	Protocol  uint64
+	Flags     NetUnixFlags
+	Type      NetUnixType
+	State     NetUnixState
+	Inode     uint64
+	Path      string
+}
+
+// NetUnix holds the data read from /proc/net/unix.
+type NetUnix struct {
+	Rows []*NetUnixLine
+}
+
+// NewNetUnix returns data read from /proc/net/unix.
+func NewNetUnix() (*NetUnix, error) {
+	fs, err := NewFS(DefaultMountPoint)
+	if err != nil {
+		return nil, err
+	}
+
+	return fs.NewNetUnix()
+}
+
+// NewNetUnix returns data read from /proc/net/unix.
+func (fs FS) NewNetUnix() (*NetUnix, error) {
+	return NewNetUnixByPath(fs.proc.Path("net/unix"))
+}
+
+// NewNetUnixByPath returns data read from /proc/net/unix by file path.
+// It might returns an error with partial parsed data, if an error occur after some data parsed.
+func NewNetUnixByPath(path string) (*NetUnix, error) {
+	f, err := os.Open(path)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+	return NewNetUnixByReader(f)
+}
+
+// NewNetUnixByReader returns data read from /proc/net/unix by a reader.
+// It might returns an error with partial parsed data, if an error occur after some data parsed.
+func NewNetUnixByReader(reader io.Reader) (*NetUnix, error) {
+	nu := &NetUnix{
+		Rows: make([]*NetUnixLine, 0, 32),
+	}
+	scanner := bufio.NewScanner(reader)
+	// Omit the header line.
+	scanner.Scan()
+	header := scanner.Text()
+	// From the man page of proc(5), it does not contain an Inode field,
+	// but in actually it exists.
+	// This code works for both cases.
+	hasInode := strings.Contains(header, "Inode")
+
+	minFieldsCnt := netUnixStaticFieldsCnt
+	if hasInode {
+		minFieldsCnt++
+	}
+	for scanner.Scan() {
+		line := scanner.Text()
+		item, err := nu.parseLine(line, hasInode, minFieldsCnt)
+		if err != nil {
+			return nu, err
+		}
+		nu.Rows = append(nu.Rows, item)
+	}
+
+	return nu, scanner.Err()
+}
+
+func (u *NetUnix) parseLine(line string, hasInode bool, minFieldsCnt int) (*NetUnixLine, error) {
+	fields := strings.Fields(line)
+	fieldsLen := len(fields)
+	if fieldsLen < minFieldsCnt {
+		return nil, fmt.Errorf(
+			"Parse Unix domain failed: expect at least %d fields but got %d",
+			minFieldsCnt, fieldsLen)
+	}
+	kernelPtr, err := u.parseKernelPtr(fields[netUnixKernelPtrIdx])
+	if err != nil {
+		return nil, fmt.Errorf("Parse Unix domain num(%s) failed: %s", fields[netUnixKernelPtrIdx], err)
+	}
+	users, err := u.parseUsers(fields[netUnixRefCountIdx])
+	if err != nil {
+		return nil, fmt.Errorf("Parse Unix domain ref count(%s) failed: %s", fields[netUnixRefCountIdx], err)
+	}
+	flags, err := u.parseFlags(fields[netUnixFlagsIdx])
+	if err != nil {
+		return nil, fmt.Errorf("Parse Unix domain flags(%s) failed: %s", fields[netUnixFlagsIdx], err)
+	}
+	typ, err := u.parseType(fields[netUnixTypeIdx])
+	if err != nil {
+		return nil, fmt.Errorf("Parse Unix domain type(%s) failed: %s", fields[netUnixTypeIdx], err)
+	}
+	state, err := u.parseState(fields[netUnixStateIdx])
+	if err != nil {
+		return nil, fmt.Errorf("Parse Unix domain state(%s) failed: %s", fields[netUnixStateIdx], err)
+	}
+	var inode uint64
+	if hasInode {
+		inodeStr := fields[netUnixInodeIdx]
+		inode, err = u.parseInode(inodeStr)
+		if err != nil {
+			return nil, fmt.Errorf("Parse Unix domain inode(%s) failed: %s", inodeStr, err)
+		}
+	}
+
+	nuLine := &NetUnixLine{
+		KernelPtr: kernelPtr,
+		RefCount:  users,
+		Type:      typ,
+		Flags:     flags,
+		State:     state,
+		Inode:     inode,
+	}
+
+	// Path field is optional.
+	if fieldsLen > minFieldsCnt {
+		pathIdx := netUnixInodeIdx + 1
+		if !hasInode {
+			pathIdx--
+		}
+		nuLine.Path = fields[pathIdx]
+	}
+
+	return nuLine, nil
+}
+
+func (u NetUnix) parseKernelPtr(str string) (string, error) {
+	if !strings.HasSuffix(str, ":") {
+		return "", errInvalidKernelPtrFmt
+	}
+	return str[:len(str)-1], nil
+}
+
+func (u NetUnix) parseUsers(hexStr string) (uint64, error) {
+	return strconv.ParseUint(hexStr, 16, 32)
+}
+
+func (u NetUnix) parseProtocol(hexStr string) (uint64, error) {
+	return strconv.ParseUint(hexStr, 16, 32)
+}
+
+func (u NetUnix) parseType(hexStr string) (NetUnixType, error) {
+	typ, err := strconv.ParseUint(hexStr, 16, 16)
+	if err != nil {
+		return 0, err
+	}
+	return NetUnixType(typ), nil
+}
+
+func (u NetUnix) parseFlags(hexStr string) (NetUnixFlags, error) {
+	flags, err := strconv.ParseUint(hexStr, 16, 32)
+	if err != nil {
+		return 0, err
+	}
+	return NetUnixFlags(flags), nil
+}
+
+func (u NetUnix) parseState(hexStr string) (NetUnixState, error) {
+	st, err := strconv.ParseInt(hexStr, 16, 8)
+	if err != nil {
+		return 0, err
+	}
+	return NetUnixState(st), nil
+}
+
+func (u NetUnix) parseInode(inodeStr string) (uint64, error) {
+	return strconv.ParseUint(inodeStr, 10, 64)
+}
+
+func (t NetUnixType) String() string {
+	switch t {
+	case netUnixTypeStream:
+		return "stream"
+	case netUnixTypeDgram:
+		return "dgram"
+	case netUnixTypeSeqpacket:
+		return "seqpacket"
+	}
+	return "unknown"
+}
+
+func (f NetUnixFlags) String() string {
+	switch f {
+	case netUnixFlagListen:
+		return "listen"
+	default:
+		return "default"
+	}
+}
+
+func (s NetUnixState) String() string {
+	switch s {
+	case netUnixStateUnconnected:
+		return "unconnected"
+	case netUnixStateConnecting:
+		return "connecting"
+	case netUnixStateConnected:
+		return "connected"
+	case netUnixStateDisconnected:
+		return "disconnected"
+	}
+	return "unknown"
+}
--- a/vendor/github.com/prometheus/procfs/nfs/parse.go
+++ b/vendor/github.com/prometheus/procfs/nfs/parse.go
@ -118,7 +118,7 @@ func parseClientRPC(v []uint64) (ClientRPC, error) {

 func parseV2Stats(v []uint64) (V2Stats, error) {
 	values := int(v[0])
-	if len(v[1:]) != values || values != 18 {
+	if len(v[1:]) != values || values < 18 {
 		return V2Stats{}, fmt.Errorf("invalid V2Stats line %q", v)
 	}

@ -146,7 +146,7 @@ func parseV2Stats(v []uint64) (V2Stats, error) {

 func parseV3Stats(v []uint64) (V3Stats, error) {
 	values := int(v[0])
-	if len(v[1:]) != values || values != 22 {
+	if len(v[1:]) != values || values < 22 {
 		return V3Stats{}, fmt.Errorf("invalid V3Stats line %q", v)
 	}

--- a/vendor/github.com/prometheus/procfs/proc_ns.go
+++ b/vendor/github.com/prometheus/procfs/proc_ns.go
@ -29,7 +29,7 @@ type Namespace struct {
 // Namespaces contains all of the namespaces that the process is contained in.
 type Namespaces map[string]Namespace

-// NewNamespaces reads from /proc/[pid/ns/* to get the namespaces of which the
+// NewNamespaces reads from /proc/<pid>/ns/* to get the namespaces of which the
 // process is a member.
 func (p Proc) NewNamespaces() (Namespaces, error) {
 	d, err := os.Open(p.path("ns"))
--- a/vendor/github.com/prometheus/procfs/proc_status.go
+++ b/vendor/github.com/prometheus/procfs/proc_status.go
@ -0,0 +1,162 @@
+// Copyright 2018 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
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package procfs
+
+import (
+	"bytes"
+	"io/ioutil"
+	"os"
+	"strconv"
+	"strings"
+)
+
+// ProcStat provides status information about the process,
+// read from /proc/[pid]/stat.
+type ProcStatus struct {
+	// The process ID.
+	PID int
+	// The process name.
+	Name string
+
+	// Peak virtual memory size.
+	VmPeak uint64
+	// Virtual memory size.
+	VmSize uint64
+	// Locked memory size.
+	VmLck uint64
+	// Pinned memory size.
+	VmPin uint64
+	// Peak resident set size.
+	VmHWM uint64
+	// Resident set size (sum of RssAnnon RssFile and RssShmem).
+	VmRSS uint64
+	// Size of resident anonymous memory.
+	RssAnon uint64
+	// Size of resident file mappings.
+	RssFile uint64
+	// Size of resident shared memory.
+	RssShmem uint64
+	// Size of data segments.
+	VmData uint64
+	// Size of stack segments.
+	VmStk uint64
+	// Size of text segments.
+	VmExe uint64
+	// Shared library code size.
+	VmLib uint64
+	// Page table entries size.
+	VmPTE uint64
+	// Size of second-level page tables.
+	VmPMD uint64
+	// Swapped-out virtual memory size by anonymous private.
+	VmSwap uint64
+	// Size of hugetlb memory portions
+	HugetlbPages uint64
+
+	// Number of voluntary context switches.
+	VoluntaryCtxtSwitches uint64
+	// Number of involuntary context switches.
+	NonVoluntaryCtxtSwitches uint64
+}
+
+// NewStatus returns the current status information of the process.
+func (p Proc) NewStatus() (ProcStatus, error) {
+	f, err := os.Open(p.path("status"))
+	if err != nil {
+		return ProcStatus{}, err
+	}
+	defer f.Close()
+
+	data, err := ioutil.ReadAll(f)
+	if err != nil {
+		return ProcStatus{}, err
+	}
+
+	s := ProcStatus{PID: p.PID}
+
+	lines := strings.Split(string(data), "\n")
+	for _, line := range lines {
+		if !bytes.Contains([]byte(line), []byte(":")) {
+			continue
+		}
+
+		kv := strings.SplitN(line, ":", 2)
+
+		// removes spaces
+		k := string(strings.TrimSpace(kv[0]))
+		v := string(strings.TrimSpace(kv[1]))
+		// removes "kB"
+		v = string(bytes.Trim([]byte(v), " kB"))
+
+		// value to int when possible
+		// we can skip error check here, 'cause vKBytes is not used when value is a string
+		vKBytes, _ := strconv.ParseUint(v, 10, 64)
+		// convert kB to B
+		vBytes := vKBytes * 1024
+
+		s.fillStatus(k, v, vKBytes, vBytes)
+	}
+
+	return s, nil
+}
+
+func (s *ProcStatus) fillStatus(k string, vString string, vUint uint64, vUintBytes uint64) {
+	switch k {
+	case "Name":
+		s.Name = vString
+	case "VmPeak":
+		s.VmPeak = vUintBytes
+	case "VmSize":
+		s.VmSize = vUintBytes
+	case "VmLck":
+		s.VmLck = vUintBytes
+	case "VmPin":
+		s.VmPin = vUintBytes
+	case "VmHWM":
+		s.VmHWM = vUintBytes
+	case "VmRSS":
+		s.VmRSS = vUintBytes
+	case "RssAnon":
+		s.RssAnon = vUintBytes
+	case "RssFile":
+		s.RssFile = vUintBytes
+	case "RssShmem":
+		s.RssShmem = vUintBytes
+	case "VmData":
+		s.VmData = vUintBytes
+	case "VmStk":
+		s.VmStk = vUintBytes
+	case "VmExe":
+		s.VmExe = vUintBytes
+	case "VmLib":
+		s.VmLib = vUintBytes
+	case "VmPTE":
+		s.VmPTE = vUintBytes
+	case "VmPMD":
+		s.VmPMD = vUintBytes
+	case "VmSwap":
+		s.VmSwap = vUintBytes
+	case "HugetlbPages":
+		s.HugetlbPages = vUintBytes
+	case "voluntary_ctxt_switches":
+		s.VoluntaryCtxtSwitches = vUint
+	case "nonvoluntary_ctxt_switches":
+		s.NonVoluntaryCtxtSwitches = vUint
+	}
+}
+
+// TotalCtxtSwitches returns the total context switch.
+func (s ProcStatus) TotalCtxtSwitches() uint64 {
+	return s.VoluntaryCtxtSwitches + s.NonVoluntaryCtxtSwitches
+}
--- a/vendor/github.com/prometheus/procfs/sysfs/clocksource.go
+++ b/vendor/github.com/prometheus/procfs/sysfs/clocksource.go
@ -0,0 +1,76 @@
+// Copyright 2019 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
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build !windows
+
+package sysfs
+
+import (
+	"path/filepath"
+	"strings"
+
+	"github.com/prometheus/procfs/internal/util"
+)
+
+// ClockSource contains metrics related to the clock source
+type ClockSource struct {
+	Name      string
+	Available []string
+	Current   string
+}
+
+// ClockSources returns clocksource information including current and available clocksources
+// read from '/sys/devices/system/clocksource'
+func (fs FS) ClockSources() ([]ClockSource, error) {
+
+	clocksourcePaths, err := filepath.Glob(fs.sys.Path("devices/system/clocksource/clocksource[0-9]*"))
+	if err != nil {
+		return nil, err
+	}
+
+	clocksources := make([]ClockSource, len(clocksourcePaths))
+	for i, clocksourcePath := range clocksourcePaths {
+		clocksourceName := strings.TrimPrefix(filepath.Base(clocksourcePath), "clocksource")
+
+		clocksource, err := parseClocksource(clocksourcePath)
+		if err != nil {
+			return nil, err
+		}
+		clocksource.Name = clocksourceName
+		clocksources[i] = *clocksource
+	}
+
+	return clocksources, nil
+}
+
+func parseClocksource(clocksourcePath string) (*ClockSource, error) {
+
+	stringFiles := []string{
+		"available_clocksource",
+		"current_clocksource",
+	}
+	stringOut := make([]string, len(stringFiles))
+	var err error
+
+	for i, f := range stringFiles {
+		stringOut[i], err = util.SysReadFile(filepath.Join(clocksourcePath, f))
+		if err != nil {
+			return &ClockSource{}, err
+		}
+	}
+
+	return &ClockSource{
+		Available: strings.Fields(stringOut[0]),
+		Current:   stringOut[1],
+	}, nil
+}
--- a/vendor/github.com/prometheus/procfs/ttar
+++ b/vendor/github.com/prometheus/procfs/ttar
@ -88,6 +88,8 @@ Usage:   $bname [-C <DIR>] -c -f <ARCHIVE> <FILE...> (create archive)
 Options:
         -C <DIR>           (change directory)
         -v                 (verbose)
+         --recursive-unlink (recursively delete existing directory if path
+                             collides with file or directory to extract)

 Example: Change to sysfs directory, create ttar file from fixtures directory
         $bname -C sysfs -c -f sysfs/fixtures.ttar fixtures/
@ -111,8 +113,9 @@ function set_cmd {
 }

 unset VERBOSE
+unset RECURSIVE_UNLINK

-while getopts :cf:htxvC: opt; do
+while getopts :cf:-:htxvC: opt; do
    case $opt in
        c)
            set_cmd "create"
@ -136,6 +139,18 @@ while getopts :cf:htxvC: opt; do
        C)
            CDIR=$OPTARG
            ;;
+        -)
+            case $OPTARG in
+                recursive-unlink)
+                    RECURSIVE_UNLINK="yes"
+                    ;;
+                *)
+                    echo -e "Error: invalid option -$OPTARG"
+                    echo
+                    usage 1
+                    ;;
+            esac
+            ;;
        *)
            echo >&2 "ERROR: invalid option -$OPTARG"
            echo
@ -212,16 +227,16 @@ function extract {
        local eof_without_newline
        if [ "$size" -gt 0 ]; then
            if [[ "$line" =~ [^\\]EOF ]]; then
-                # An EOF not preceeded by a backslash indicates that the line
+                # An EOF not preceded by a backslash indicates that the line
                # does not end with a newline
                eof_without_newline=1
            else
                eof_without_newline=0
            fi
            # Replace NULLBYTE with null byte if at beginning of line
-            # Replace NULLBYTE with null byte unless preceeded by backslash
+            # Replace NULLBYTE with null byte unless preceded by backslash
            # Remove one backslash in front of NULLBYTE (if any)
-            # Remove EOF unless preceeded by backslash
+            # Remove EOF unless preceded by backslash
            # Remove one backslash in front of EOF
            if [ $USE_PYTHON -eq 1 ]; then
                echo -n "$line" | python -c "$PYTHON_EXTRACT_FILTER" >> "$path"
@ -245,7 +260,16 @@ function extract {
        fi
        if [[ $line =~ ^Path:\ (.*)$ ]]; then
            path=${BASH_REMATCH[1]}
-            if [ -e "$path" ] || [ -L "$path" ]; then
+            if [ -L "$path" ]; then
+                rm "$path"
+            elif [ -d "$path" ]; then
+                if [ "${RECURSIVE_UNLINK:-}" == "yes" ]; then
+                    rm -r "$path"
+                else
+                    # Safe because symlinks to directories are dealt with above
+                    rmdir "$path"
+                fi
+            elif [ -e "$path" ]; then
                rm "$path"
            fi
        elif [[ $line =~ ^Lines:\ (.*)$ ]]; then
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@ -45,7 +45,7 @@ github.com/prometheus/common/version
 github.com/prometheus/common/expfmt
 github.com/prometheus/common/model
 github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg
-# github.com/prometheus/procfs v0.0.0-20190507043628-bc6930f2d510
+# github.com/prometheus/procfs v0.0.0-20190529155944-65bdadfa96ae
 github.com/prometheus/procfs
 github.com/prometheus/procfs/bcache
 github.com/prometheus/procfs/nfs