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Add Btrfs collector #1512

Merged
merged 5 commits into from
Feb 19, 2020
Merged

Add Btrfs collector #1512

merged 5 commits into from
Feb 19, 2020

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silkeh
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@silkeh silkeh commented Oct 9, 2019

This PR adds a Btrfs collector using the changes contained in the PR for procfs (prometheus/procfs#223).

Currently, only a few useful metrics are exported that can be used to calculate the allocation of the filesystem. Let me know if anything else is useful.

This PR is a draft pending a release containing the changes in procfs.

Resolves #1100

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Great! Some tests would be good though and you need to update the vendoring to include the procfs changes.

@silkeh silkeh marked this pull request as ready for review November 21, 2019 21:22
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silkeh commented Nov 21, 2019

@discordianfish I rebased on master to pull in the newer procfs, and added tests.

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SuperQ commented Jan 31, 2020

Two minor things:

  • Please add this to the enabled collectors list in end-to-end-test.sh.
  • Please add * [FEATURE] Add Btrfs collector #1512 to the changelog.

Signed-off-by: Silke Hofstra <silke@slxh.eu>
@silkeh silkeh force-pushed the pr/btrfs-support branch 2 times, most recently from 24f1c9d to c2d1c70 Compare February 5, 2020 14:00
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silkeh commented Feb 5, 2020

@SuperQ done. I also fixed a small issue in the fixtures, renamed the device_count metric to devices and rebased on master.

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Sorry for the long turnaround time on reviews.

Having had some time to take a closer look at the code, there are a few problems we need to fix first.

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Sorry for the long turnaround time on reviews.

No problem!

Having had some time to take a closer look at the code, there are a few problems we need to fix first.

I have added fixup commits (hopefully) addressing the issues. Let me know if it's OK and I'll squash them.

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A few more minor things. Looks much better.

node_btrfs_global_rsv_size_bytes{uuid="7f07c59f-6136-449c-ab87-e1cf2328731b"} 1.6777216e+07
# HELP node_btrfs_info Filesystem information
# TYPE node_btrfs_info gauge
node_btrfs_info{label="",uuid="7f07c59f-6136-449c-ab87-e1cf2328731b"} 1
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Empty labels are tricky. Do you have any suggestions here @brian-brazil?

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SuperQ commented Feb 19, 2020

If you could squash up these commits and make sure you git commit -s --amend so that the DCO passes, I think we're pretty good to go.

Resolves prometheus#1100

Signed-off-by: Silke Hofstra <silke@slxh.eu>
Signed-off-by: Silke Hofstra <silke@slxh.eu>
Signed-off-by: Silke Hofstra <silke@slxh.eu>
Signed-off-by: Silke Hofstra <silke@slxh.eu>
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I'm a little concerned about the empty label, but otherwise ok.

Thanks for all the work on this!

LGTM

@SuperQ SuperQ merged commit 8faa843 into prometheus:master Feb 19, 2020
SuperQ added a commit that referenced this pull request May 25, 2020
* The netdev collector CLI argument `--collector.netdev.ignored-devices` was renamed to `--collector.netdev.device-blacklist` in order to conform with the systemd collector. #1279
* The label named `state` on `node_systemd_service_restart_total` metrics was changed to `name` to better describe the metric. #1393
* Refactoring of the mdadm collector changes several metrics
    - `node_md_disks_active` is removed
    - `node_md_disks` now has a `state` label for "fail", "spare", "active" disks.
    - `node_md_is_active` is replaced by `node_md_state` with a state set of "active", "inactive", "recovering", "resync".
* Additional label `mountaddr` added to NFS device metrics to distinguish mounts from the same URL, but different IP addresses. #1417
* Metrics node_cpu_scaling_frequency_min_hrts and node_cpu_scaling_frequency_max_hrts of the cpufreq collector were renamed to node_cpu_scaling_frequency_min_hertz and node_cpu_scaling_frequency_max_hertz. #1510
* Collectors that are enabled, but are unable to find data to collect, now return 0 for `node_scrape_collector_success`.

* [CHANGE] Add `--collector.netdev.device-whitelist`. #1279
* [CHANGE] Ignore iso9600 filesystem on Linux #1355
* [CHANGE] Refactor mdadm collector #1403
* [CHANGE] Add `mountaddr` label to NFS metrics. #1417
* [CHANGE] Don't count empty collectors as success. #1613
* [FEATURE] New flag to disable default collectors #1276
* [FEATURE] Add experimental TLS support #1277, #1687, #1695
* [FEATURE] Add collector for Power Supply Class #1280
* [FEATURE] Add new schedstat collector #1389
* [FEATURE] Add FreeBSD zfs support #1394
* [FEATURE] Add uname support for Darwin and OpenBSD #1433
* [FEATURE] Add new metric node_cpu_info #1489
* [FEATURE] Add new thermal_zone collector #1425
* [FEATURE] Add new cooling_device metrics to thermal zone collector #1445
* [FEATURE] Add swap usage on darwin #1508
* [FEATURE] Add Btrfs collector #1512
* [FEATURE] Add RAPL collector #1523
* [FEATURE] Add new softnet collector #1576
* [FEATURE] Add new udp_queues collector #1503
* [FEATURE] Add basic authentication #1673
* [ENHANCEMENT] Log pid when there is a problem reading the process stats #1341
* [ENHANCEMENT] Collect InfiniBand port state and physical state #1357
* [ENHANCEMENT] Include additional XFS runtime statistics. #1423
* [ENHANCEMENT] Report non-fatal collection errors in the exporter metric. #1439
* [ENHANCEMENT] Expose IPVS firewall mark as a label #1455
* [ENHANCEMENT] Add check for systemd version before attempting to query certain metrics. #1413
* [ENHANCEMENT] Add a flag to adjust mount timeout #1486
* [ENHANCEMENT] Add new counters for flush requests in Linux 5.5 #1548
* [ENHANCEMENT] Add metrics and tests for UDP receive and send buffer errors #1534
* [ENHANCEMENT] The sockstat collector now exposes IPv6 statistics in addition to the existing IPv4 support. #1552
* [ENHANCEMENT] Add infiniband info metric #1563
* [ENHANCEMENT] Add unix socket support for supervisord collector #1592
* [ENHANCEMENT] Implement loadavg on all BSDs without cgo #1584
* [ENHANCEMENT] Add model_name and stepping to node_cpu_info metric #1617
* [ENHANCEMENT] Add `--collector.perf.cpus` to allow setting the CPU list for perf stats. #1561
* [ENHANCEMENT] Add metrics for IO errors and retires on Darwin. #1636
* [ENHANCEMENT] Add perf tracepoint collection flag #1664
* [ENHANCEMENT] ZFS: read contents of objset file #1632
* [ENHANCEMENT] Linux CPU: Cache CPU metrics to make them monotonically increasing #1711
* [BUGFIX] Read /proc/net files with a single read syscall #1380
* [BUGFIX] Renamed label `state` to `name` on `node_systemd_service_restart_total`. #1393
* [BUGFIX] Fix netdev nil reference on Darwin #1414
* [BUGFIX] Strip path.rootfs from mountpoint labels #1421
* [BUGFIX] Fix seconds reported by schedstat #1426
* [BUGFIX] Fix empty string in path.rootfs #1464
* [BUGFIX] Fix typo in cpufreq metric names #1510
* [BUGFIX] Read /proc/stat in one syscall #1538
* [BUGFIX] Fix OpenBSD cache memory information #1542
* [BUGFIX] Refactor textfile collector to avoid looping defer #1549
* [BUGFIX] Fix network speed math #1580
* [BUGFIX] collector/systemd: use regexp to extract systemd version #1647
* [BUGFIX] Fix initialization in perf collector when using multiple CPUs #1665
* [BUGFIX] Fix accidentally empty lines in meminfo_linux #1671

Signed-off-by: Ben Kochie <superq@gmail.com>
@SuperQ SuperQ mentioned this pull request May 25, 2020
oblitorum pushed a commit to shatteredsilicon/node_exporter that referenced this pull request Apr 9, 2024
* Add procfs/btrfs to vendor folder
* Add Btrfs collector

Resolves prometheus#1100

Signed-off-by: Silke Hofstra <silke@slxh.eu>
oblitorum pushed a commit to shatteredsilicon/node_exporter that referenced this pull request Apr 9, 2024
* The netdev collector CLI argument `--collector.netdev.ignored-devices` was renamed to `--collector.netdev.device-blacklist` in order to conform with the systemd collector. prometheus#1279
* The label named `state` on `node_systemd_service_restart_total` metrics was changed to `name` to better describe the metric. prometheus#1393
* Refactoring of the mdadm collector changes several metrics
    - `node_md_disks_active` is removed
    - `node_md_disks` now has a `state` label for "fail", "spare", "active" disks.
    - `node_md_is_active` is replaced by `node_md_state` with a state set of "active", "inactive", "recovering", "resync".
* Additional label `mountaddr` added to NFS device metrics to distinguish mounts from the same URL, but different IP addresses. prometheus#1417
* Metrics node_cpu_scaling_frequency_min_hrts and node_cpu_scaling_frequency_max_hrts of the cpufreq collector were renamed to node_cpu_scaling_frequency_min_hertz and node_cpu_scaling_frequency_max_hertz. prometheus#1510
* Collectors that are enabled, but are unable to find data to collect, now return 0 for `node_scrape_collector_success`.

* [CHANGE] Add `--collector.netdev.device-whitelist`. prometheus#1279
* [CHANGE] Ignore iso9600 filesystem on Linux prometheus#1355
* [CHANGE] Refactor mdadm collector prometheus#1403
* [CHANGE] Add `mountaddr` label to NFS metrics. prometheus#1417
* [CHANGE] Don't count empty collectors as success. prometheus#1613
* [FEATURE] New flag to disable default collectors prometheus#1276
* [FEATURE] Add experimental TLS support prometheus#1277, prometheus#1687, prometheus#1695
* [FEATURE] Add collector for Power Supply Class prometheus#1280
* [FEATURE] Add new schedstat collector prometheus#1389
* [FEATURE] Add FreeBSD zfs support prometheus#1394
* [FEATURE] Add uname support for Darwin and OpenBSD prometheus#1433
* [FEATURE] Add new metric node_cpu_info prometheus#1489
* [FEATURE] Add new thermal_zone collector prometheus#1425
* [FEATURE] Add new cooling_device metrics to thermal zone collector prometheus#1445
* [FEATURE] Add swap usage on darwin prometheus#1508
* [FEATURE] Add Btrfs collector prometheus#1512
* [FEATURE] Add RAPL collector prometheus#1523
* [FEATURE] Add new softnet collector prometheus#1576
* [FEATURE] Add new udp_queues collector prometheus#1503
* [FEATURE] Add basic authentication prometheus#1673
* [ENHANCEMENT] Log pid when there is a problem reading the process stats prometheus#1341
* [ENHANCEMENT] Collect InfiniBand port state and physical state prometheus#1357
* [ENHANCEMENT] Include additional XFS runtime statistics. prometheus#1423
* [ENHANCEMENT] Report non-fatal collection errors in the exporter metric. prometheus#1439
* [ENHANCEMENT] Expose IPVS firewall mark as a label prometheus#1455
* [ENHANCEMENT] Add check for systemd version before attempting to query certain metrics. prometheus#1413
* [ENHANCEMENT] Add a flag to adjust mount timeout prometheus#1486
* [ENHANCEMENT] Add new counters for flush requests in Linux 5.5 prometheus#1548
* [ENHANCEMENT] Add metrics and tests for UDP receive and send buffer errors prometheus#1534
* [ENHANCEMENT] The sockstat collector now exposes IPv6 statistics in addition to the existing IPv4 support. prometheus#1552
* [ENHANCEMENT] Add infiniband info metric prometheus#1563
* [ENHANCEMENT] Add unix socket support for supervisord collector prometheus#1592
* [ENHANCEMENT] Implement loadavg on all BSDs without cgo prometheus#1584
* [ENHANCEMENT] Add model_name and stepping to node_cpu_info metric prometheus#1617
* [ENHANCEMENT] Add `--collector.perf.cpus` to allow setting the CPU list for perf stats. prometheus#1561
* [ENHANCEMENT] Add metrics for IO errors and retires on Darwin. prometheus#1636
* [ENHANCEMENT] Add perf tracepoint collection flag prometheus#1664
* [ENHANCEMENT] ZFS: read contents of objset file prometheus#1632
* [ENHANCEMENT] Linux CPU: Cache CPU metrics to make them monotonically increasing prometheus#1711
* [BUGFIX] Read /proc/net files with a single read syscall prometheus#1380
* [BUGFIX] Renamed label `state` to `name` on `node_systemd_service_restart_total`. prometheus#1393
* [BUGFIX] Fix netdev nil reference on Darwin prometheus#1414
* [BUGFIX] Strip path.rootfs from mountpoint labels prometheus#1421
* [BUGFIX] Fix seconds reported by schedstat prometheus#1426
* [BUGFIX] Fix empty string in path.rootfs prometheus#1464
* [BUGFIX] Fix typo in cpufreq metric names prometheus#1510
* [BUGFIX] Read /proc/stat in one syscall prometheus#1538
* [BUGFIX] Fix OpenBSD cache memory information prometheus#1542
* [BUGFIX] Refactor textfile collector to avoid looping defer prometheus#1549
* [BUGFIX] Fix network speed math prometheus#1580
* [BUGFIX] collector/systemd: use regexp to extract systemd version prometheus#1647
* [BUGFIX] Fix initialization in perf collector when using multiple CPUs prometheus#1665
* [BUGFIX] Fix accidentally empty lines in meminfo_linux prometheus#1671

Signed-off-by: Ben Kochie <superq@gmail.com>
oblitorum pushed a commit to shatteredsilicon/node_exporter that referenced this pull request Apr 9, 2024
* Add procfs/btrfs to vendor folder
* Add Btrfs collector

Resolves prometheus#1100

Signed-off-by: Silke Hofstra <silke@slxh.eu>
oblitorum pushed a commit to shatteredsilicon/node_exporter that referenced this pull request Apr 9, 2024
* The netdev collector CLI argument `--collector.netdev.ignored-devices` was renamed to `--collector.netdev.device-blacklist` in order to conform with the systemd collector. prometheus#1279
* The label named `state` on `node_systemd_service_restart_total` metrics was changed to `name` to better describe the metric. prometheus#1393
* Refactoring of the mdadm collector changes several metrics
    - `node_md_disks_active` is removed
    - `node_md_disks` now has a `state` label for "fail", "spare", "active" disks.
    - `node_md_is_active` is replaced by `node_md_state` with a state set of "active", "inactive", "recovering", "resync".
* Additional label `mountaddr` added to NFS device metrics to distinguish mounts from the same URL, but different IP addresses. prometheus#1417
* Metrics node_cpu_scaling_frequency_min_hrts and node_cpu_scaling_frequency_max_hrts of the cpufreq collector were renamed to node_cpu_scaling_frequency_min_hertz and node_cpu_scaling_frequency_max_hertz. prometheus#1510
* Collectors that are enabled, but are unable to find data to collect, now return 0 for `node_scrape_collector_success`.

* [CHANGE] Add `--collector.netdev.device-whitelist`. prometheus#1279
* [CHANGE] Ignore iso9600 filesystem on Linux prometheus#1355
* [CHANGE] Refactor mdadm collector prometheus#1403
* [CHANGE] Add `mountaddr` label to NFS metrics. prometheus#1417
* [CHANGE] Don't count empty collectors as success. prometheus#1613
* [FEATURE] New flag to disable default collectors prometheus#1276
* [FEATURE] Add experimental TLS support prometheus#1277, prometheus#1687, prometheus#1695
* [FEATURE] Add collector for Power Supply Class prometheus#1280
* [FEATURE] Add new schedstat collector prometheus#1389
* [FEATURE] Add FreeBSD zfs support prometheus#1394
* [FEATURE] Add uname support for Darwin and OpenBSD prometheus#1433
* [FEATURE] Add new metric node_cpu_info prometheus#1489
* [FEATURE] Add new thermal_zone collector prometheus#1425
* [FEATURE] Add new cooling_device metrics to thermal zone collector prometheus#1445
* [FEATURE] Add swap usage on darwin prometheus#1508
* [FEATURE] Add Btrfs collector prometheus#1512
* [FEATURE] Add RAPL collector prometheus#1523
* [FEATURE] Add new softnet collector prometheus#1576
* [FEATURE] Add new udp_queues collector prometheus#1503
* [FEATURE] Add basic authentication prometheus#1673
* [ENHANCEMENT] Log pid when there is a problem reading the process stats prometheus#1341
* [ENHANCEMENT] Collect InfiniBand port state and physical state prometheus#1357
* [ENHANCEMENT] Include additional XFS runtime statistics. prometheus#1423
* [ENHANCEMENT] Report non-fatal collection errors in the exporter metric. prometheus#1439
* [ENHANCEMENT] Expose IPVS firewall mark as a label prometheus#1455
* [ENHANCEMENT] Add check for systemd version before attempting to query certain metrics. prometheus#1413
* [ENHANCEMENT] Add a flag to adjust mount timeout prometheus#1486
* [ENHANCEMENT] Add new counters for flush requests in Linux 5.5 prometheus#1548
* [ENHANCEMENT] Add metrics and tests for UDP receive and send buffer errors prometheus#1534
* [ENHANCEMENT] The sockstat collector now exposes IPv6 statistics in addition to the existing IPv4 support. prometheus#1552
* [ENHANCEMENT] Add infiniband info metric prometheus#1563
* [ENHANCEMENT] Add unix socket support for supervisord collector prometheus#1592
* [ENHANCEMENT] Implement loadavg on all BSDs without cgo prometheus#1584
* [ENHANCEMENT] Add model_name and stepping to node_cpu_info metric prometheus#1617
* [ENHANCEMENT] Add `--collector.perf.cpus` to allow setting the CPU list for perf stats. prometheus#1561
* [ENHANCEMENT] Add metrics for IO errors and retires on Darwin. prometheus#1636
* [ENHANCEMENT] Add perf tracepoint collection flag prometheus#1664
* [ENHANCEMENT] ZFS: read contents of objset file prometheus#1632
* [ENHANCEMENT] Linux CPU: Cache CPU metrics to make them monotonically increasing prometheus#1711
* [BUGFIX] Read /proc/net files with a single read syscall prometheus#1380
* [BUGFIX] Renamed label `state` to `name` on `node_systemd_service_restart_total`. prometheus#1393
* [BUGFIX] Fix netdev nil reference on Darwin prometheus#1414
* [BUGFIX] Strip path.rootfs from mountpoint labels prometheus#1421
* [BUGFIX] Fix seconds reported by schedstat prometheus#1426
* [BUGFIX] Fix empty string in path.rootfs prometheus#1464
* [BUGFIX] Fix typo in cpufreq metric names prometheus#1510
* [BUGFIX] Read /proc/stat in one syscall prometheus#1538
* [BUGFIX] Fix OpenBSD cache memory information prometheus#1542
* [BUGFIX] Refactor textfile collector to avoid looping defer prometheus#1549
* [BUGFIX] Fix network speed math prometheus#1580
* [BUGFIX] collector/systemd: use regexp to extract systemd version prometheus#1647
* [BUGFIX] Fix initialization in perf collector when using multiple CPUs prometheus#1665
* [BUGFIX] Fix accidentally empty lines in meminfo_linux prometheus#1671

Signed-off-by: Ben Kochie <superq@gmail.com>
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btrfs stats collector
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