mirror of
https://github.com/prometheus/node_exporter.git
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29cdbd63fe
When the zfs collector fails on FreeBSD it doesn't log which `mib` triggered the issue. This makes diagnostics hard. Incompatibilities in the list of supported mibs is not uncommon with major os updates. By adding this change, it'll be easier for users to report the specific mib that is triggering the failure. Related to #2847 Signed-off-by: Daniel Kimsey <90741+dekimsey@users.noreply.github.com>
290 lines
8.9 KiB
Go
290 lines
8.9 KiB
Go
// Copyright 2019 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build !nozfs
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// +build !nozfs
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package collector
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import (
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"github.com/go-kit/log"
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"github.com/go-kit/log/level"
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"github.com/prometheus/client_golang/prometheus"
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)
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type zfsCollector struct {
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sysctls []bsdSysctl
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logger log.Logger
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}
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const (
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zfsCollectorSubsystem = "zfs"
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)
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func init() {
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registerCollector("zfs", defaultEnabled, NewZfsCollector)
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}
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func NewZfsCollector(logger log.Logger) (Collector, error) {
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return &zfsCollector{
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sysctls: []bsdSysctl{
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{
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name: "abdstats_linear_count_total",
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description: "ZFS ARC buffer data linear count",
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mib: "kstat.zfs.misc.abdstats.linear_cnt",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.CounterValue,
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},
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{
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name: "abdstats_linear_data_bytes",
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description: "ZFS ARC buffer data linear data size",
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mib: "kstat.zfs.misc.abdstats.linear_data_size",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.GaugeValue,
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},
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{
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name: "abdstats_scatter_chunk_waste_bytes",
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description: "ZFS ARC buffer data scatter chunk waste",
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mib: "kstat.zfs.misc.abdstats.scatter_chunk_waste",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.GaugeValue,
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},
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{
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name: "abdstats_scatter_count_total",
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description: "ZFS ARC buffer data scatter count",
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mib: "kstat.zfs.misc.abdstats.scatter_cnt",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.CounterValue,
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},
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{
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name: "abdstats_scatter_data_bytes",
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description: "ZFS ARC buffer data scatter data size",
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mib: "kstat.zfs.misc.abdstats.scatter_data_size",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.GaugeValue,
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},
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{
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name: "abdstats_struct_bytes",
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description: "ZFS ARC buffer data struct size",
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mib: "kstat.zfs.misc.abdstats.struct_size",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.GaugeValue,
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},
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{
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name: "arcstats_anon_bytes",
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description: "ZFS ARC anon size",
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mib: "kstat.zfs.misc.arcstats.anon_size",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.GaugeValue,
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},
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{
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name: "arcstats_c_bytes",
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description: "ZFS ARC target size",
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mib: "kstat.zfs.misc.arcstats.c",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.GaugeValue,
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},
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{
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name: "arcstats_c_max_bytes",
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description: "ZFS ARC maximum size",
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mib: "kstat.zfs.misc.arcstats.c_max",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.GaugeValue,
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},
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{
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name: "arcstats_c_min_bytes",
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description: "ZFS ARC minimum size",
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mib: "kstat.zfs.misc.arcstats.c_min",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.GaugeValue,
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},
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{
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name: "arcstats_data_bytes",
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description: "ZFS ARC data size",
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mib: "kstat.zfs.misc.arcstats.data_size",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.GaugeValue,
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},
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{
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name: "arcstats_demand_data_hits_total",
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description: "ZFS ARC demand data hits",
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mib: "kstat.zfs.misc.arcstats.demand_data_hits",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.CounterValue,
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},
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{
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name: "arcstats_demand_data_misses_total",
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description: "ZFS ARC demand data misses",
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mib: "kstat.zfs.misc.arcstats.demand_data_misses",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.CounterValue,
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},
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{
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name: "arcstats_demand_metadata_hits_total",
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description: "ZFS ARC demand metadata hits",
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mib: "kstat.zfs.misc.arcstats.demand_metadata_hits",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.CounterValue,
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},
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{
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name: "arcstats_demand_metadata_misses_total",
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description: "ZFS ARC demand metadata misses",
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mib: "kstat.zfs.misc.arcstats.demand_metadata_misses",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.CounterValue,
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},
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{
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name: "arcstats_hdr_bytes",
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description: "ZFS ARC header size",
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mib: "kstat.zfs.misc.arcstats.hdr_size",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.GaugeValue,
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},
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{
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name: "arcstats_hits_total",
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description: "ZFS ARC hits",
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mib: "kstat.zfs.misc.arcstats.hits",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.CounterValue,
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},
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{
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name: "arcstats_misses_total",
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description: "ZFS ARC misses",
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mib: "kstat.zfs.misc.arcstats.misses",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.CounterValue,
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},
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{
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name: "arcstats_mfu_ghost_hits_total",
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description: "ZFS ARC MFU ghost hits",
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mib: "kstat.zfs.misc.arcstats.mfu_ghost_hits",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.CounterValue,
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},
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{
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name: "arcstats_mfu_ghost_size",
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description: "ZFS ARC MFU ghost size",
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mib: "kstat.zfs.misc.arcstats.mfu_ghost_size",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.GaugeValue,
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},
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{
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name: "arcstats_mfu_bytes",
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description: "ZFS ARC MFU size",
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mib: "kstat.zfs.misc.arcstats.mfu_size",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.GaugeValue,
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},
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{
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name: "arcstats_mru_ghost_hits_total",
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description: "ZFS ARC MRU ghost hits",
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mib: "kstat.zfs.misc.arcstats.mru_ghost_hits",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.CounterValue,
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},
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{
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name: "arcstats_mru_ghost_bytes",
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description: "ZFS ARC MRU ghost size",
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mib: "kstat.zfs.misc.arcstats.mru_ghost_size",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.GaugeValue,
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},
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{
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name: "arcstats_mru_bytes",
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description: "ZFS ARC MRU size",
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mib: "kstat.zfs.misc.arcstats.mru_size",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.GaugeValue,
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},
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{
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name: "arcstats_other_bytes",
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description: "ZFS ARC other size",
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mib: "kstat.zfs.misc.arcstats.other_size",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.GaugeValue,
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},
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// when FreeBSD 14.0+, `meta/pm/pd` install of `p`.
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{
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name: "arcstats_p_bytes",
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description: "ZFS ARC MRU target size",
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mib: "kstat.zfs.misc.arcstats.p",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.GaugeValue,
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},
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{
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name: "arcstats_meta_bytes",
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description: "ZFS ARC metadata target frac ",
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mib: "kstat.zfs.misc.arcstats.meta",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.GaugeValue,
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},
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{
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name: "arcstats_pd_bytes",
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description: "ZFS ARC data MRU target frac",
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mib: "kstat.zfs.misc.arcstats.pd",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.GaugeValue,
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},
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{
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name: "arcstats_pm_bytes",
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description: "ZFS ARC meta MRU target frac",
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mib: "kstat.zfs.misc.arcstats.pm",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.GaugeValue,
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},
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{
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name: "arcstats_size_bytes",
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description: "ZFS ARC size",
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mib: "kstat.zfs.misc.arcstats.size",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.GaugeValue,
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},
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{
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name: "zfetchstats_hits_total",
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description: "ZFS cache fetch hits",
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mib: "kstat.zfs.misc.zfetchstats.hits",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.CounterValue,
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},
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{
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name: "zfetchstats_misses_total",
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description: "ZFS cache fetch misses",
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mib: "kstat.zfs.misc.zfetchstats.misses",
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dataType: bsdSysctlTypeUint64,
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valueType: prometheus.CounterValue,
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},
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},
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logger: logger,
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}, nil
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}
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func (c *zfsCollector) Update(ch chan<- prometheus.Metric) error {
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for _, m := range c.sysctls {
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v, err := m.Value()
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if err != nil {
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// debug logging
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level.Debug(c.logger).Log("name", m.name, "mib", m.mib, "couldn't get sysctl:", err)
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continue
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}
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ch <- prometheus.MustNewConstMetric(
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prometheus.NewDesc(
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prometheus.BuildFQName(namespace, zfsCollectorSubsystem, m.name),
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m.description,
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nil, nil,
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), m.valueType, v)
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}
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return nil
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}
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