Unable to start node_exporter err="could not get power_supply class info: error obtaining power_supply class info: failed to read file \"/sys/class/power_supply/BAT0/current_now\": no such device" #3108
Description
Host operating system: output of uname -a
Linux hostname 6.8.0-40-generic #40~22.04.3-Ubuntu SMP PREEMPT_DYNAMIC Tue Jul 30 17:30:19 UTC 2 x86_64 x86_64 x86_64 GNU/Linux
node_exporter version: output of node_exporter --version
node_exporter, version 1.8.2 (branch: HEAD, revision: f1e0e8360aa60b6cb5e5cc1560bed348fc2c1895)
build user: root@03d440803209
build date: 20240714-11:53:45
go version: go1.22.5
platform: linux/amd64
tags: unknown
node_exporter command line flags
without flags, in systemd service file:
[Service]
User=node_exporter
Group=node_exporter
Type=simple
ExecStart=/usr/local/bin/node_exporter
node_exporter log output
ts=2024-09-03T09:02:53.463Z caller=node_exporter.go:193 level=info msg="Starting node_exporter" version="(version=1.8.2, branch=HEAD, revision=f1e0e8360aa60b6cb5e5cc1560bed348fc2c1895)"
ts=2024-09-03T09:02:53.463Z caller=node_exporter.go:194 level=info msg="Build context" build_context="(go=go1.22.5, platform=linux/amd64, user=root@03d440803209, date=20240714-11:53:45, tags=unknown)"
ts=2024-09-03T09:02:53.464Z caller=node_exporter.go:196 level=warn msg="Node Exporter is running as root user. This exporter is designed to run as unprivileged user, root is not required."
ts=2024-09-03T09:02:53.464Z caller=filesystem_common.go:111 level=info collector=filesystem msg="Parsed flag --collector.filesystem.mount-points-exclude" flag=^/(dev|proc|run/credentials/.+|sys|var/lib/docker/.+|var/lib/containers/storage/.+)($|/)
ts=2024-09-03T09:02:53.464Z caller=filesystem_common.go:113 level=info collector=filesystem msg="Parsed flag --collector.filesystem.fs-types-exclude" flag=^(autofs|binfmt_misc|bpf|cgroup2?|configfs|debugfs|devpts|devtmpfs|fusectl|hugetlbfs|iso9660|mqueue|nsfs|overlay|proc|procfs|pstore|rpc_pipefs|securityfs|selinuxfs|squashfs|sysfs|tracefs)$
ts=2024-09-03T09:02:53.464Z caller=diskstats_common.go:111 level=info collector=diskstats msg="Parsed flag --collector.diskstats.device-exclude" flag=^(z?ram|loop|fd|(h|s|v|xv)d[a-z]|nvme\d+n\d+p)\d+$
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:111 level=info msg="Enabled collectors"
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=arp
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=bcache
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=bonding
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=btrfs
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=conntrack
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=cpu
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=cpufreq
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=diskstats
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=dmi
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=edac
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=entropy
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=fibrechannel
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=filefd
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=filesystem
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=hwmon
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=infiniband
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=ipvs
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=loadavg
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=mdadm
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=meminfo
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=netclass
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=netdev
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=netstat
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=nfs
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=nfsd
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=nvme
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=os
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=powersupplyclass
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=pressure
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=rapl
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=schedstat
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=selinux
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=sockstat
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=softnet
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=stat
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=tapestats
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=textfile
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=thermal_zone
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=time
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=timex
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=udp_queues
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=uname
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=vmstat
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=watchdog
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=xfs
ts=2024-09-03T09:02:53.465Z caller=node_exporter.go:118 level=info collector=zfs
ts=2024-09-03T09:02:53.465Z caller=tls_config.go:313 level=info msg="Listening on" address=[::]:9100
ts=2024-09-03T09:02:53.465Z caller=tls_config.go:316 level=info msg="TLS is disabled." http2=false address=[::]:9100
ts=2024-09-03T09:03:28.987Z caller=collector.go:169 level=error msg="collector failed" name=powersupplyclass duration_seconds=0.009142353 err="could not get power_supply class info: error obtaining power_supply class info: failed to read file \"/sys/class/power_supply/BAT0/current_now\": no such device"
panic: runtime error: slice bounds out of range [:-1520805024]
goroutine 86 [running]:
github.com/prometheus/node_exporter/collector.sysReadFile({0xc00003fd10?, 0x2?})
/app/collector/hwmon_linux.go:108 +0x1cb
github.com/prometheus/node_exporter/collector.addValueFile(0xc00016fbd0, {0xc0004636e8, 0x6}, {0xc000463647, 0x5}, {0xc00003fd10?, 0xc00016f788?})
/app/collector/hwmon_linux.go:76 +0x3b
github.com/prometheus/node_exporter/collector.collectSensorData({0xc0003f26d8, 0x17}, 0xc00016fbd0)
/app/collector/hwmon_linux.go:152 +0x21a
github.com/prometheus/node_exporter/collector.(*hwMonCollector).updateHwmon(0xc000208320, 0xc00022a840, {0xc0003f26d8, 0x17})
/app/collector/hwmon_linux.go:172 +0x231
github.com/prometheus/node_exporter/collector.(*hwMonCollector).Update(0xc000208320, 0xc00022a840)
/app/collector/hwmon_linux.go:466 +0x374
github.com/prometheus/node_exporter/collector.execute({0xbc6c13, 0x5}, {0xcf0120, 0xc000208320}, 0xc00022a840, {0xcef880, 0xc00004e4c0})
/app/collector/collector.go:161 +0x90
github.com/prometheus/node_exporter/collector.NodeCollector.Collect.func1({0xbc6c13?, 0x0?}, {0xcf0120?, 0xc000208320?})
/app/collector/collector.go:152 +0x37
created by github.com/prometheus/node_exporter/collector.NodeCollector.Collect in goroutine 59
/app/collector/collector.go:151 +0xce
Are you running node_exporter in Docker?
No
What did you do that produced an error?
after node_exporter started, send a curl or open using web browser to http://localhost:9100/metrics
What did you expect to see?
metrics are shown
What did you see instead?
curl return curl: (52) Empty reply from server while node_exporter process is crashed