Missing node_zfs_zpool_state metrics

### Host operating system: output of `uname -a`

`Linux expanse 5.15.0-39-generic #42-Ubuntu SMP Thu Jun 9 23:42:32 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux`

### node_exporter version: output of `node_exporter --version`

`v1.3.1`

### Are you running node_exporter in Docker?

```yaml
---
version: "3.8"

services:
  node-exporter:
    image: quay.io/prometheus/node-exporter:v1.3.1
    container_name: node-exporter
    restart: unless-stopped
    command:
      - --path.procfs=/host/proc
      - --path.rootfs=/rootfs
      - --path.sysfs=/host/sys
      - --collector.filesystem.mount-points-exclude=^/(sys|proc|dev|host|etc)($$|/)
    volumes:
      - /proc:/host/proc:ro
      - /sys:/host/sys:ro
      - /:/rootfs:ro,rslave
    ports:
      - 9100:9100
```

### What did you do that produced an error?

### What did you expect to see?

I expected to see `node_zfs_zpool_state` metrics

### What did you see instead?

Logs show zfs is enabled:

```sh
❯ docker logs ebef38fa83bf -f
ts=2022-08-05T16:29:01.797Z caller=node_exporter.go:182 level=info msg="Starting node_exporter" version="(version=1.3.1, branch=HEAD, revision=a2321e7b940ddcff26873612bccdf7cd4c42b6b6)"
ts=2022-08-05T16:29:01.797Z caller=node_exporter.go:183 level=info msg="Build context" build_context="(go=go1.17.3, user=root@243aafa5525c, date=20211205-11:09:49)"
ts=2022-08-05T16:29:01.798Z caller=filesystem_common.go:111 level=info collector=filesystem msg="Parsed flag --collector.filesystem.mount-points-exclude" flag=^/(sys|proc|dev|host|etc)($|/)
ts=2022-08-05T16:29:01.798Z caller=filesystem_common.go:113 level=info collector=filesystem msg="Parsed flag --collector.filesystem.fs-types-exclude" flag=^(autofs|binfmt_misc|bpf|cgroup2?|configfs|debugfs|devpts|devtmpfs|fusectl|hugetlbfs|iso9660|mqueue|nsfs|overlay|proc|procfs|pstore|rpc_pipefs|securityfs|selinuxfs|squashfs|sysfs|tracefs)$
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:108 level=info msg="Enabled collectors"
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=arp
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=bcache
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=bonding
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=btrfs
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=conntrack
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=cpu
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=cpufreq
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=diskstats
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=dmi
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=edac
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=entropy
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=fibrechannel
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=filefd
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=filesystem
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=hwmon
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=infiniband
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=ipvs
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=loadavg
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=mdadm
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=meminfo
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=netclass
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=netdev
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=netstat
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=nfs
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=nfsd
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=nvme
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=os
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=powersupplyclass
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=pressure
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=rapl
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=schedstat
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=sockstat
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=softnet
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=stat
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=tapestats
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=textfile
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=thermal_zone
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=time
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=timex
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=udp_queues
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=uname
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=vmstat
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=xfs
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:115 level=info collector=zfs
ts=2022-08-05T16:29:01.798Z caller=node_exporter.go:199 level=info msg="Listening on" address=:9100
ts=2022-08-05T16:29:01.798Z caller=tls_config.go:195 level=info msg="TLS is disabled." http2=false
```

No `node_zfs_zpool_state` metrics returned:

```sh
curl -sL 127.0.0.1:9100/metrics | grep zpool

(nothing found)
```

Other zfs metrics are returned:

```sh
curl -sL 127.0.0.1:9100/metrics | grep zfs_ | head -n 10

# HELP node_zfs_abd_linear_cnt kstat.zfs.misc.abdstats.linear_cnt
# TYPE node_zfs_abd_linear_cnt untyped
node_zfs_abd_linear_cnt 300
# HELP node_zfs_abd_linear_data_size kstat.zfs.misc.abdstats.linear_data_size
# TYPE node_zfs_abd_linear_data_size untyped
node_zfs_abd_linear_data_size 172544
# HELP node_zfs_abd_scatter_chunk_waste kstat.zfs.misc.abdstats.scatter_chunk_waste
# TYPE node_zfs_abd_scatter_chunk_waste untyped
node_zfs_abd_scatter_chunk_waste 216064
# HELP node_zfs_abd_scatter_cnt kstat.zfs.misc.abdstats.scatter_cnt
```

state appears to be where node_exporter is looking on the host

```sh
cat /proc/spl/kstat/zfs/tycho/state

ONLINE
```

and it also appears in the docker container:

```sh
cat /host/proc/spl/kstat/zfs/tycho/state

ONLINE
```

zfs version:

```sh
zfs --version

zfs-2.1.4-0ubuntu0.1
zfs-kmod-2.1.2-1ubuntu3
```

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Missing node_zfs_zpool_state metrics #2442

Host operating system: output of `uname -a`

node_exporter version: output of `node_exporter --version`

Are you running node_exporter in Docker?

What did you do that produced an error?

What did you expect to see?

What did you see instead?

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Missing node_zfs_zpool_state metrics #2442

Description

Host operating system: output of uname -a

node_exporter version: output of node_exporter --version

Are you running node_exporter in Docker?

What did you do that produced an error?

What did you expect to see?

What did you see instead?

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions

Host operating system: output of `uname -a`

node_exporter version: output of `node_exporter --version`