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Fix processes collector long int parsing 

Update procfs library to include ignored fields ParseInt handling.

Wrap error returns so that the user can know more about what failed.
Returns from getAllocatedThreads() are errors anyway.

Fixes: https://github.com/prometheus/node_exporter/issues/2110

Signed-off-by: Ben Kochie <superq@gmail.com>
This commit is contained in:
Ben Kochie 2021-08-05 17:59:13 +02:00
parent 4200d7f0e1
commit 9b790f6973
No known key found for this signature in database
GPG Key ID: C646B23C9E3245F1
3 changed files with 6 additions and 6 deletions
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6
collector/processes_linux.go
View File

@ -105,7 +105,7 @@ func (c *processCollector) Update(ch chan<- prometheus.Metric) error {
func (c *processCollector) getAllocatedThreads() (int, map[string]int32, int, error) { func (c *processCollector) getAllocatedThreads() (int, map[string]int32, int, error) {
p, err := c.fs.AllProcs() p, err := c.fs.AllProcs()
if err != nil { if err != nil {
return 0, nil, 0, err return 0, nil, 0, fmt.Errorf("unable to list all processes: %w", err)
} }
pids := 0 pids := 0
thread := 0 thread := 0
@ -118,8 +118,8 @@ func (c *processCollector) getAllocatedThreads() (int, map[string]int32, int, er
level.Debug(c.logger).Log("msg", "file not found when retrieving stats for pid", "pid", pid, "err", err) level.Debug(c.logger).Log("msg", "file not found when retrieving stats for pid", "pid", pid, "err", err)
continue continue
} }
level.Debug(c.logger).Log("msg", "error reading stat for pid", "pid", pid, "err", err) level.Debug(c.logger).Log("msg", "error reading stat for pid", "pid", pid.PID, "err", err)
return 0, nil, 0, err return 0, nil, 0, fmt.Errorf("error reading stat for pid %d: %w", pid.PID, err)
} }
pids++ pids++
procStates[stat.State]++ procStates[stat.State]++

2
go.mod
View File

@ -16,7 +16,7 @@ require (
github.com/prometheus/client_model v0.2.0 github.com/prometheus/client_model v0.2.0
github.com/prometheus/common v0.29.0 github.com/prometheus/common v0.29.0
github.com/prometheus/exporter-toolkit v0.6.0 github.com/prometheus/exporter-toolkit v0.6.0
github.com/prometheus/procfs v0.7.1 github.com/prometheus/procfs v0.7.2
github.com/safchain/ethtool v0.0.0-20201023143004-874930cb3ce0 github.com/safchain/ethtool v0.0.0-20201023143004-874930cb3ce0
github.com/siebenmann/go-kstat v0.0.0-20210513183136-173c9b0a9973 // indirect github.com/siebenmann/go-kstat v0.0.0-20210513183136-173c9b0a9973 // indirect
github.com/soundcloud/go-runit v0.0.0-20150630195641-06ad41a06c4a github.com/soundcloud/go-runit v0.0.0-20150630195641-06ad41a06c4a

4
go.sum
View File

@ -238,8 +238,8 @@ github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R
github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA= github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
github.com/prometheus/procfs v0.1.3/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU= github.com/prometheus/procfs v0.1.3/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
github.com/prometheus/procfs v0.6.0/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1xBZuNvfVA= github.com/prometheus/procfs v0.6.0/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1xBZuNvfVA=
github.com/prometheus/procfs v0.7.1 h1:TlEtJq5GvGqMykEwWzbZWjjztF86swFhsPix1i0bkgA= github.com/prometheus/procfs v0.7.2 h1:zE6zJjRS9S916ptrZ326OU0++1XRwHgxkvCFflxx6Fo=
github.com/prometheus/procfs v0.7.1/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1xBZuNvfVA= github.com/prometheus/procfs v0.7.2/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1xBZuNvfVA=
github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4= github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
github.com/safchain/ethtool v0.0.0-20201023143004-874930cb3ce0 h1:eskphjc5kRCykOJyX7HHVbJCs25/8knprttvrVvEd8o= github.com/safchain/ethtool v0.0.0-20201023143004-874930cb3ce0 h1:eskphjc5kRCykOJyX7HHVbJCs25/8knprttvrVvEd8o=
github.com/safchain/ethtool v0.0.0-20201023143004-874930cb3ce0/go.mod h1:Z0q5wiBQGYcxhMZ6gUqHn6pYNLypFAvaL3UvgZLR0U4= github.com/safchain/ethtool v0.0.0-20201023143004-874930cb3ce0/go.mod h1:Z0q5wiBQGYcxhMZ6gUqHn6pYNLypFAvaL3UvgZLR0U4=