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-rw-r--r--collectors/diskspace.plugin/Makefile.am8
l---------collectors/diskspace.plugin/README.md1
-rw-r--r--collectors/diskspace.plugin/integrations/disk_space.md140
-rw-r--r--collectors/diskspace.plugin/metadata.yaml139
-rw-r--r--collectors/diskspace.plugin/plugin_diskspace.c945
5 files changed, 1233 insertions, 0 deletions
diff --git a/collectors/diskspace.plugin/Makefile.am b/collectors/diskspace.plugin/Makefile.am
new file mode 100644
index 00000000..161784b8
--- /dev/null
+++ b/collectors/diskspace.plugin/Makefile.am
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+AUTOMAKE_OPTIONS = subdir-objects
+MAINTAINERCLEANFILES = $(srcdir)/Makefile.in
+
+dist_noinst_DATA = \
+ README.md \
+ $(NULL)
diff --git a/collectors/diskspace.plugin/README.md b/collectors/diskspace.plugin/README.md
new file mode 120000
index 00000000..c9f4e1c5
--- /dev/null
+++ b/collectors/diskspace.plugin/README.md
@@ -0,0 +1 @@
+integrations/disk_space.md \ No newline at end of file
diff --git a/collectors/diskspace.plugin/integrations/disk_space.md b/collectors/diskspace.plugin/integrations/disk_space.md
new file mode 100644
index 00000000..1c937ed7
--- /dev/null
+++ b/collectors/diskspace.plugin/integrations/disk_space.md
@@ -0,0 +1,140 @@
+<!--startmeta
+custom_edit_url: "https://github.com/netdata/netdata/edit/master/collectors/diskspace.plugin/README.md"
+meta_yaml: "https://github.com/netdata/netdata/edit/master/collectors/diskspace.plugin/metadata.yaml"
+sidebar_label: "Disk space"
+learn_status: "Published"
+learn_rel_path: "Data Collection/Linux Systems"
+most_popular: False
+message: "DO NOT EDIT THIS FILE DIRECTLY, IT IS GENERATED BY THE COLLECTOR'S metadata.yaml FILE"
+endmeta-->
+
+# Disk space
+
+
+<img src="https://netdata.cloud/img/hard-drive.svg" width="150"/>
+
+
+Plugin: diskspace.plugin
+Module: diskspace.plugin
+
+<img src="https://img.shields.io/badge/maintained%20by-Netdata-%2300ab44" />
+
+## Overview
+
+Monitor Disk space metrics for proficient storage management. Keep track of usage, free space, and error rates to prevent disk space issues.
+
+
+
+This collector is supported on all platforms.
+
+This collector supports collecting metrics from multiple instances of this integration, including remote instances.
+
+
+### Default Behavior
+
+#### Auto-Detection
+
+The plugin reads data from `/proc/self/mountinfo` and `/proc/diskstats file`.
+
+#### Limits
+
+The default configuration for this integration does not impose any limits on data collection.
+
+#### Performance Impact
+
+The default configuration for this integration is not expected to impose a significant performance impact on the system.
+
+
+## Metrics
+
+Metrics grouped by *scope*.
+
+The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels.
+
+
+
+### Per mount point
+
+
+
+Labels:
+
+| Label | Description |
+|:-----------|:----------------|
+| mount_point | Path used to mount a filesystem |
+| filesystem | The filesystem used to format a partition. |
+| mount_root | Root directory where mount points are present. |
+
+Metrics:
+
+| Metric | Dimensions | Unit |
+|:------|:----------|:----|
+| disk.space | avail, used, reserved_for_root | GiB |
+| disk.inodes | avail, used, reserved_for_root | inodes |
+
+
+
+## Alerts
+
+
+The following alerts are available:
+
+| Alert name | On metric | Description |
+|:------------|:----------|:------------|
+| [ disk_space_usage ](https://github.com/netdata/netdata/blob/master/health/health.d/disks.conf) | disk.space | disk ${label:mount_point} space utilization |
+| [ disk_inode_usage ](https://github.com/netdata/netdata/blob/master/health/health.d/disks.conf) | disk.inodes | disk ${label:mount_point} inode utilization |
+
+
+## Setup
+
+### Prerequisites
+
+No action required.
+
+### Configuration
+
+#### File
+
+The configuration file name for this integration is `netdata.conf`.
+Configuration for this specific integration is located in the `[plugin:proc:diskspace]` section within that file.
+
+The file format is a modified INI syntax. The general structure is:
+
+```ini
+[section1]
+ option1 = some value
+ option2 = some other value
+
+[section2]
+ option3 = some third value
+```
+You can edit the configuration file using the `edit-config` script from the
+Netdata [config directory](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md#the-netdata-config-directory).
+
+```bash
+cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata
+sudo ./edit-config netdata.conf
+```
+#### Options
+
+You can also specify per mount point `[plugin:proc:diskspace:mountpoint]`
+
+<details><summary>Config options</summary>
+
+| Name | Description | Default | Required |
+|:----|:-----------|:-------|:--------:|
+| update every | Data collection frequency. | 1 | no |
+| remove charts of unmounted disks | Remove chart when a device is unmounted on host. | yes | no |
+| check for new mount points every | Parse proc files frequency. | 15 | no |
+| exclude space metrics on paths | Do not show metrics (charts) for listed paths. This option accepts netdata simple pattern. | /proc/* /sys/* /var/run/user/* /run/user/* /snap/* /var/lib/docker/* | no |
+| exclude space metrics on filesystems | Do not show metrics (charts) for listed filesystems. This option accepts netdata simple pattern. | *gvfs *gluster* *s3fs *ipfs *davfs2 *httpfs *sshfs *gdfs *moosefs fusectl autofs | no |
+| exclude inode metrics on filesystems | Do not show metrics (charts) for listed filesystems. This option accepts netdata simple pattern. | msdosfs msdos vfat overlayfs aufs* *unionfs | no |
+| space usage for all disks | Define if plugin will show metrics for space usage. When value is set to `auto` plugin will try to access information to display if filesystem or path was not discarded with previous option. | auto | no |
+| inodes usage for all disks | Define if plugin will show metrics for inode usage. When value is set to `auto` plugin will try to access information to display if filesystem or path was not discarded with previous option. | auto | no |
+
+</details>
+
+#### Examples
+There are no configuration examples.
+
+
diff --git a/collectors/diskspace.plugin/metadata.yaml b/collectors/diskspace.plugin/metadata.yaml
new file mode 100644
index 00000000..cb45edf3
--- /dev/null
+++ b/collectors/diskspace.plugin/metadata.yaml
@@ -0,0 +1,139 @@
+plugin_name: diskspace.plugin
+modules:
+ - meta:
+ plugin_name: diskspace.plugin
+ module_name: diskspace.plugin
+ monitored_instance:
+ name: Disk space
+ link: ""
+ categories:
+ - data-collection.linux-systems
+ icon_filename: "hard-drive.svg"
+ related_resources:
+ integrations:
+ list:
+ - plugin_name: ebpf.plugin
+ module_name: disk
+ info_provided_to_referring_integrations:
+ description: ""
+ keywords:
+ - disk
+ - I/O
+ - space
+ - inode
+ most_popular: false
+ overview:
+ data_collection:
+ metrics_description: "Monitor Disk space metrics for proficient storage management. Keep track of usage, free space, and error rates to prevent disk space issues."
+ method_description: ""
+ supported_platforms:
+ include: []
+ exclude: []
+ multi_instance: true
+ additional_permissions:
+ description: ""
+ default_behavior:
+ auto_detection:
+ description: "The plugin reads data from `/proc/self/mountinfo` and `/proc/diskstats file`."
+ limits:
+ description: ""
+ performance_impact:
+ description: ""
+ setup:
+ prerequisites:
+ list: []
+ configuration:
+ file:
+ name: "netdata.conf"
+ section_name: "[plugin:proc:diskspace]"
+ description: "This is netdata main configuration file"
+ options:
+ description: "You can also specify per mount point `[plugin:proc:diskspace:mountpoint]`"
+ folding:
+ title: "Config options"
+ enabled: true
+ list:
+ - name: update every
+ description: Data collection frequency.
+ default_value: 1
+ required: false
+ - name: remove charts of unmounted disks
+ description: Remove chart when a device is unmounted on host.
+ default_value: yes
+ required: false
+ - name: check for new mount points every
+ description: Parse proc files frequency.
+ default_value: 15
+ required: false
+ - name: exclude space metrics on paths
+ description: Do not show metrics (charts) for listed paths. This option accepts netdata simple pattern.
+ default_value: /proc/* /sys/* /var/run/user/* /run/user/* /snap/* /var/lib/docker/*
+ required: false
+ - name: exclude space metrics on filesystems
+ description: Do not show metrics (charts) for listed filesystems. This option accepts netdata simple pattern.
+ default_value: "*gvfs *gluster* *s3fs *ipfs *davfs2 *httpfs *sshfs *gdfs *moosefs fusectl autofs"
+ required: false
+ - name: exclude inode metrics on filesystems
+ description: Do not show metrics (charts) for listed filesystems. This option accepts netdata simple pattern.
+ default_value: msdosfs msdos vfat overlayfs aufs* *unionfs
+ required: false
+ - name: space usage for all disks
+ description: Define if plugin will show metrics for space usage. When value is set to `auto` plugin will try to access information to display if filesystem or path was not discarded with previous option.
+ default_value: auto
+ required: false
+ - name: inodes usage for all disks
+ description: Define if plugin will show metrics for inode usage. When value is set to `auto` plugin will try to access information to display if filesystem or path was not discarded with previous option.
+ default_value: auto
+ required: false
+ examples:
+ folding:
+ enabled: true
+ title: ""
+ list: []
+ troubleshooting:
+ problems:
+ list: []
+ alerts:
+ - name: disk_space_usage
+ link: https://github.com/netdata/netdata/blob/master/health/health.d/disks.conf
+ metric: disk.space
+ info: disk ${label:mount_point} space utilization
+ os: "linux freebsd"
+ - name: disk_inode_usage
+ link: https://github.com/netdata/netdata/blob/master/health/health.d/disks.conf
+ metric: disk.inodes
+ info: disk ${label:mount_point} inode utilization
+ os: "linux freebsd"
+ metrics:
+ folding:
+ title: Metrics
+ enabled: false
+ description: ""
+ availability: []
+ scopes:
+ - name: mount point
+ description: ""
+ labels:
+ - name: mount_point
+ description: Path used to mount a filesystem
+ - name: filesystem
+ description: The filesystem used to format a partition.
+ - name: mount_root
+ description: Root directory where mount points are present.
+ metrics:
+ - name: disk.space
+ description: Disk Space Usage
+ unit: "GiB"
+ chart_type: stacked
+ dimensions:
+ - name: avail
+ - name: used
+ - name: reserved_for_root
+ - name: disk.inodes
+ description: Disk Files (inodes) Usage
+ unit: "inodes"
+ chart_type: stacked
+ dimensions:
+ - name: avail
+ - name: used
+ - name: reserved_for_root
diff --git a/collectors/diskspace.plugin/plugin_diskspace.c b/collectors/diskspace.plugin/plugin_diskspace.c
new file mode 100644
index 00000000..94257810
--- /dev/null
+++ b/collectors/diskspace.plugin/plugin_diskspace.c
@@ -0,0 +1,945 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "../proc.plugin/plugin_proc.h"
+
+#define PLUGIN_DISKSPACE_NAME "diskspace.plugin"
+
+#define DEFAULT_EXCLUDED_PATHS "/proc/* /sys/* /var/run/user/* /run/user/* /snap/* /var/lib/docker/*"
+#define DEFAULT_EXCLUDED_FILESYSTEMS "*gvfs *gluster* *s3fs *ipfs *davfs2 *httpfs *sshfs *gdfs *moosefs fusectl autofs"
+#define DEFAULT_EXCLUDED_FILESYSTEMS_INODES "msdosfs msdos vfat overlayfs aufs* *unionfs"
+#define CONFIG_SECTION_DISKSPACE "plugin:proc:diskspace"
+
+#define RRDFUNCTIONS_DISKSPACE_HELP "View mount point statistics"
+
+#define MAX_STAT_USEC 10000LU
+#define SLOW_UPDATE_EVERY 5
+
+static netdata_thread_t *diskspace_slow_thread = NULL;
+
+static struct mountinfo *disk_mountinfo_root = NULL;
+static int check_for_new_mountpoints_every = 15;
+static int cleanup_mount_points = 1;
+
+static inline void mountinfo_reload(int force) {
+ static time_t last_loaded = 0;
+ time_t now = now_realtime_sec();
+
+ if(force || now - last_loaded >= check_for_new_mountpoints_every) {
+ // mountinfo_free_all() can be called with NULL disk_mountinfo_root
+ mountinfo_free_all(disk_mountinfo_root);
+
+ // re-read mountinfo in case something changed
+ disk_mountinfo_root = mountinfo_read(0);
+
+ last_loaded = now;
+ }
+}
+
+// Data to be stored in DICTIONARY dict_mountpoints used by do_disk_space_stats().
+// This DICTIONARY is used to lookup the settings of the mount point on each iteration.
+struct mount_point_metadata {
+ int do_space;
+ int do_inodes;
+ int shown_error;
+ int updated;
+ int slow;
+
+ bool function_ready;
+
+ STRING *filesystem;
+ STRING *mountroot;
+
+ RRDLABELS *chart_labels;
+
+ size_t collected; // the number of times this has been collected
+
+ RRDSET *st_space;
+ RRDDIM *rd_space_used;
+ RRDDIM *rd_space_avail;
+ RRDDIM *rd_space_reserved;
+
+ RRDSET *st_inodes;
+ RRDDIM *rd_inodes_used;
+ RRDDIM *rd_inodes_avail;
+ RRDDIM *rd_inodes_reserved;
+};
+
+static DICTIONARY *dict_mountpoints = NULL;
+
+#define rrdset_obsolete_and_pointer_null(st) do { if(st) { rrdset_is_obsolete___safe_from_collector_thread(st); (st) = NULL; } } while(st)
+
+int mount_point_cleanup(const char *name, void *entry, int slow) {
+ (void)name;
+
+ struct mount_point_metadata *mp = (struct mount_point_metadata *)entry;
+ if(!mp) return 0;
+
+ if (slow != mp->slow)
+ return 0;
+
+ if(likely(mp->updated)) {
+ mp->updated = 0;
+ return 0;
+ }
+
+ if(likely(cleanup_mount_points && mp->collected)) {
+ mp->function_ready = false;
+ mp->collected = 0;
+ mp->updated = 0;
+ mp->shown_error = 0;
+
+ string_freez(mp->filesystem);
+ string_freez(mp->mountroot);
+
+ rrdset_obsolete_and_pointer_null(mp->st_space);
+ rrdset_obsolete_and_pointer_null(mp->st_inodes);
+
+ mp->rd_space_avail = NULL;
+ mp->rd_space_used = NULL;
+ mp->rd_space_reserved = NULL;
+
+ mp->rd_inodes_avail = NULL;
+ mp->rd_inodes_used = NULL;
+ mp->rd_inodes_reserved = NULL;
+ }
+
+ return 0;
+}
+
+int mount_point_cleanup_cb(const DICTIONARY_ITEM *item, void *entry, void *data __maybe_unused) {
+ const char *name = dictionary_acquired_item_name(item);
+
+ return mount_point_cleanup(name, (struct mount_point_metadata *)entry, 0);
+}
+
+// a copy of basic mountinfo fields
+struct basic_mountinfo {
+ char *persistent_id;
+ char *root;
+ char *mount_point;
+ char *filesystem;
+
+ struct basic_mountinfo *next;
+};
+
+static struct basic_mountinfo *slow_mountinfo_tmp_root = NULL;
+static netdata_mutex_t slow_mountinfo_mutex;
+
+static struct basic_mountinfo *basic_mountinfo_create_and_copy(struct mountinfo* mi)
+{
+ struct basic_mountinfo *bmi = callocz(1, sizeof(struct basic_mountinfo));
+
+ if (mi) {
+ bmi->persistent_id = strdupz(mi->persistent_id);
+ bmi->root = strdupz(mi->root);
+ bmi->mount_point = strdupz(mi->mount_point);
+ bmi->filesystem = strdupz(mi->filesystem);
+ }
+
+ return bmi;
+}
+
+static void add_basic_mountinfo(struct basic_mountinfo **root, struct mountinfo *mi)
+{
+ if (!root)
+ return;
+
+ struct basic_mountinfo *bmi = basic_mountinfo_create_and_copy(mi);
+
+ bmi->next = *root;
+ *root = bmi;
+};
+
+static void free_basic_mountinfo(struct basic_mountinfo *bmi)
+{
+ if (bmi) {
+ freez(bmi->persistent_id);
+ freez(bmi->root);
+ freez(bmi->mount_point);
+ freez(bmi->filesystem);
+
+ freez(bmi);
+ }
+};
+
+static void free_basic_mountinfo_list(struct basic_mountinfo *root)
+{
+ struct basic_mountinfo *bmi = root, *next;
+
+ while (bmi) {
+ next = bmi->next;
+ free_basic_mountinfo(bmi);
+ bmi = next;
+ }
+}
+
+static void calculate_values_and_show_charts(
+ struct basic_mountinfo *mi,
+ struct mount_point_metadata *m,
+ struct statvfs *buff_statvfs,
+ int update_every)
+{
+ const char *family = mi->mount_point;
+ const char *disk = mi->persistent_id;
+
+ // logic found at get_fs_usage() in coreutils
+ unsigned long bsize = (buff_statvfs->f_frsize) ? buff_statvfs->f_frsize : buff_statvfs->f_bsize;
+
+ fsblkcnt_t bavail = buff_statvfs->f_bavail;
+ fsblkcnt_t btotal = buff_statvfs->f_blocks;
+ fsblkcnt_t bavail_root = buff_statvfs->f_bfree;
+ fsblkcnt_t breserved_root = bavail_root - bavail;
+ fsblkcnt_t bused = likely(btotal >= bavail_root) ? btotal - bavail_root : bavail_root - btotal;
+
+#ifdef NETDATA_INTERNAL_CHECKS
+ if(unlikely(btotal != bavail + breserved_root + bused))
+ collector_error("DISKSPACE: disk block statistics for '%s' (disk '%s') do not sum up: total = %llu, available = %llu, reserved = %llu, used = %llu", mi->mount_point, disk, (unsigned long long)btotal, (unsigned long long)bavail, (unsigned long long)breserved_root, (unsigned long long)bused);
+#endif
+
+ // --------------------------------------------------------------------------
+
+ fsfilcnt_t favail = buff_statvfs->f_favail;
+ fsfilcnt_t ftotal = buff_statvfs->f_files;
+ fsfilcnt_t favail_root = buff_statvfs->f_ffree;
+ fsfilcnt_t freserved_root = favail_root - favail;
+ fsfilcnt_t fused = ftotal - favail_root;
+
+ if(m->do_inodes == CONFIG_BOOLEAN_AUTO && favail == (fsfilcnt_t)-1) {
+ // this file system does not support inodes reporting
+ // eg. cephfs
+ m->do_inodes = CONFIG_BOOLEAN_NO;
+ }
+
+#ifdef NETDATA_INTERNAL_CHECKS
+ if(unlikely(btotal != bavail + breserved_root + bused))
+ collector_error("DISKSPACE: disk inode statistics for '%s' (disk '%s') do not sum up: total = %llu, available = %llu, reserved = %llu, used = %llu", mi->mount_point, disk, (unsigned long long)ftotal, (unsigned long long)favail, (unsigned long long)freserved_root, (unsigned long long)fused);
+#endif
+
+ int rendered = 0;
+
+ if(m->do_space == CONFIG_BOOLEAN_YES || (m->do_space == CONFIG_BOOLEAN_AUTO &&
+ (bavail || breserved_root || bused ||
+ netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))) {
+ if(unlikely(!m->st_space) || m->st_space->update_every != update_every) {
+ m->do_space = CONFIG_BOOLEAN_YES;
+ m->st_space = rrdset_find_active_bytype_localhost("disk_space", disk);
+ if(unlikely(!m->st_space || m->st_space->update_every != update_every)) {
+ char title[4096 + 1];
+ snprintfz(title, sizeof(title) - 1, "Disk Space Usage");
+ m->st_space = rrdset_create_localhost(
+ "disk_space"
+ , disk
+ , NULL
+ , family
+ , "disk.space"
+ , title
+ , "GiB"
+ , PLUGIN_DISKSPACE_NAME
+ , NULL
+ , NETDATA_CHART_PRIO_DISKSPACE_SPACE
+ , update_every
+ , RRDSET_TYPE_STACKED
+ );
+ }
+
+ rrdset_update_rrdlabels(m->st_space, m->chart_labels);
+
+ m->rd_space_avail = rrddim_add(m->st_space, "avail", NULL, (collected_number)bsize, 1024 * 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
+ m->rd_space_used = rrddim_add(m->st_space, "used", NULL, (collected_number)bsize, 1024 * 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
+ m->rd_space_reserved = rrddim_add(m->st_space, "reserved_for_root", "reserved for root", (collected_number)bsize, 1024 * 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
+ }
+
+ rrddim_set_by_pointer(m->st_space, m->rd_space_avail, (collected_number)bavail);
+ rrddim_set_by_pointer(m->st_space, m->rd_space_used, (collected_number)bused);
+ rrddim_set_by_pointer(m->st_space, m->rd_space_reserved, (collected_number)breserved_root);
+ rrdset_done(m->st_space);
+
+ rendered++;
+ }
+
+ if(m->do_inodes == CONFIG_BOOLEAN_YES || (m->do_inodes == CONFIG_BOOLEAN_AUTO &&
+ (favail || freserved_root || fused ||
+ netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))) {
+ if(unlikely(!m->st_inodes) || m->st_inodes->update_every != update_every) {
+ m->do_inodes = CONFIG_BOOLEAN_YES;
+ m->st_inodes = rrdset_find_active_bytype_localhost("disk_inodes", disk);
+ if(unlikely(!m->st_inodes) || m->st_inodes->update_every != update_every) {
+ char title[4096 + 1];
+ snprintfz(title, sizeof(title) - 1, "Disk Files (inodes) Usage");
+ m->st_inodes = rrdset_create_localhost(
+ "disk_inodes"
+ , disk
+ , NULL
+ , family
+ , "disk.inodes"
+ , title
+ , "inodes"
+ , PLUGIN_DISKSPACE_NAME
+ , NULL
+ , NETDATA_CHART_PRIO_DISKSPACE_INODES
+ , update_every
+ , RRDSET_TYPE_STACKED
+ );
+ }
+
+ rrdset_update_rrdlabels(m->st_inodes, m->chart_labels);
+
+ m->rd_inodes_avail = rrddim_add(m->st_inodes, "avail", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
+ m->rd_inodes_used = rrddim_add(m->st_inodes, "used", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
+ m->rd_inodes_reserved = rrddim_add(m->st_inodes, "reserved_for_root", "reserved for root", 1, 1, RRD_ALGORITHM_ABSOLUTE);
+ }
+
+ rrddim_set_by_pointer(m->st_inodes, m->rd_inodes_avail, (collected_number)favail);
+ rrddim_set_by_pointer(m->st_inodes, m->rd_inodes_used, (collected_number)fused);
+ rrddim_set_by_pointer(m->st_inodes, m->rd_inodes_reserved, (collected_number)freserved_root);
+ rrdset_done(m->st_inodes);
+
+ rendered++;
+ }
+
+ m->function_ready = rendered > 0;
+
+ if(likely(rendered))
+ m->collected++;
+}
+
+static inline void do_disk_space_stats(struct mountinfo *mi, int update_every) {
+ const char *disk = mi->persistent_id;
+
+ static SIMPLE_PATTERN *excluded_mountpoints = NULL;
+ static SIMPLE_PATTERN *excluded_filesystems = NULL;
+ static SIMPLE_PATTERN *excluded_filesystems_inodes = NULL;
+
+ usec_t slow_timeout = MAX_STAT_USEC * update_every;
+
+ int do_space, do_inodes;
+
+ if(unlikely(!dict_mountpoints)) {
+ SIMPLE_PREFIX_MODE mode = SIMPLE_PATTERN_EXACT;
+
+ if(config_move("plugin:proc:/proc/diskstats", "exclude space metrics on paths", CONFIG_SECTION_DISKSPACE, "exclude space metrics on paths") != -1) {
+ // old configuration, enable backwards compatibility
+ mode = SIMPLE_PATTERN_PREFIX;
+ }
+
+ excluded_mountpoints = simple_pattern_create(
+ config_get(CONFIG_SECTION_DISKSPACE, "exclude space metrics on paths", DEFAULT_EXCLUDED_PATHS),
+ NULL,
+ mode,
+ true);
+
+ excluded_filesystems = simple_pattern_create(
+ config_get(CONFIG_SECTION_DISKSPACE, "exclude space metrics on filesystems", DEFAULT_EXCLUDED_FILESYSTEMS),
+ NULL,
+ SIMPLE_PATTERN_EXACT,
+ true);
+
+ excluded_filesystems_inodes = simple_pattern_create(
+ config_get(CONFIG_SECTION_DISKSPACE, "exclude inode metrics on filesystems", DEFAULT_EXCLUDED_FILESYSTEMS_INODES),
+ NULL,
+ SIMPLE_PATTERN_EXACT,
+ true);
+
+ dict_mountpoints = dictionary_create_advanced(DICT_OPTION_NONE, &dictionary_stats_category_collectors, 0);
+ }
+
+ struct mount_point_metadata *m = dictionary_get(dict_mountpoints, mi->mount_point);
+ if(unlikely(!m)) {
+ int slow = 0;
+
+ int def_space = config_get_boolean_ondemand(CONFIG_SECTION_DISKSPACE, "space usage for all disks", CONFIG_BOOLEAN_AUTO);
+ int def_inodes = config_get_boolean_ondemand(CONFIG_SECTION_DISKSPACE, "inodes usage for all disks", CONFIG_BOOLEAN_AUTO);
+
+ if(unlikely(simple_pattern_matches(excluded_mountpoints, mi->mount_point))) {
+ def_space = CONFIG_BOOLEAN_NO;
+ def_inodes = CONFIG_BOOLEAN_NO;
+ }
+
+ if(unlikely(simple_pattern_matches(excluded_filesystems, mi->filesystem))) {
+ def_space = CONFIG_BOOLEAN_NO;
+ def_inodes = CONFIG_BOOLEAN_NO;
+ }
+ if (unlikely(simple_pattern_matches(excluded_filesystems_inodes, mi->filesystem))) {
+ def_inodes = CONFIG_BOOLEAN_NO;
+ }
+
+ // check if the mount point is a directory #2407
+ // but only when it is enabled by default #4491
+ if(def_space != CONFIG_BOOLEAN_NO || def_inodes != CONFIG_BOOLEAN_NO) {
+ usec_t start_time = now_monotonic_high_precision_usec();
+ struct stat bs;
+
+ if(stat(mi->mount_point, &bs) == -1) {
+ collector_error("DISKSPACE: Cannot stat() mount point '%s' (disk '%s', filesystem '%s', root '%s')."
+ , mi->mount_point
+ , disk
+ , mi->filesystem?mi->filesystem:""
+ , mi->root?mi->root:""
+ );
+ def_space = CONFIG_BOOLEAN_NO;
+ def_inodes = CONFIG_BOOLEAN_NO;
+ }
+ else {
+ if((bs.st_mode & S_IFMT) != S_IFDIR) {
+ collector_error("DISKSPACE: Mount point '%s' (disk '%s', filesystem '%s', root '%s') is not a directory."
+ , mi->mount_point
+ , disk
+ , mi->filesystem?mi->filesystem:""
+ , mi->root?mi->root:""
+ );
+ def_space = CONFIG_BOOLEAN_NO;
+ def_inodes = CONFIG_BOOLEAN_NO;
+ }
+ }
+
+ if ((now_monotonic_high_precision_usec() - start_time) > slow_timeout)
+ slow = 1;
+ }
+
+ char var_name[4096 + 1];
+ snprintfz(var_name, 4096, "plugin:proc:diskspace:%s", mi->mount_point);
+
+ do_space = def_space;
+ do_inodes = def_inodes;
+
+ if (config_exists(var_name, "space usage"))
+ do_space = config_get_boolean_ondemand(var_name, "space usage", def_space);
+ if (config_exists(var_name, "inodes usage"))
+ do_inodes = config_get_boolean_ondemand(var_name, "inodes usage", def_inodes);
+
+ struct mount_point_metadata mp = {
+ .do_space = do_space,
+ .do_inodes = do_inodes,
+ .shown_error = 0,
+ .updated = 0,
+ .slow = 0,
+
+ .collected = 0,
+
+ .st_space = NULL,
+ .rd_space_avail = NULL,
+ .rd_space_used = NULL,
+ .rd_space_reserved = NULL,
+
+ .st_inodes = NULL,
+ .rd_inodes_avail = NULL,
+ .rd_inodes_used = NULL,
+ .rd_inodes_reserved = NULL
+ };
+
+ mp.filesystem = string_strdupz(mi->filesystem);
+ mp.mountroot = string_strdupz(mi->root);
+
+ mp.chart_labels = rrdlabels_create();
+ rrdlabels_add(mp.chart_labels, "mount_point", mi->mount_point, RRDLABEL_SRC_AUTO);
+ rrdlabels_add(mp.chart_labels, "filesystem", mi->filesystem, RRDLABEL_SRC_AUTO);
+ rrdlabels_add(mp.chart_labels, "mount_root", mi->root, RRDLABEL_SRC_AUTO);
+
+ m = dictionary_set(dict_mountpoints, mi->mount_point, &mp, sizeof(struct mount_point_metadata));
+
+ m->slow = slow;
+ }
+
+ if (m->slow) {
+ add_basic_mountinfo(&slow_mountinfo_tmp_root, mi);
+ return;
+ }
+
+ m->updated = 1;
+
+ if(unlikely(m->do_space == CONFIG_BOOLEAN_NO && m->do_inodes == CONFIG_BOOLEAN_NO))
+ return;
+
+ if (unlikely(
+ mi->flags & MOUNTINFO_READONLY &&
+ !(mi->flags & MOUNTINFO_IS_IN_SYSD_PROTECTED_LIST) &&
+ !m->collected &&
+ m->do_space != CONFIG_BOOLEAN_YES &&
+ m->do_inodes != CONFIG_BOOLEAN_YES))
+ return;
+
+ usec_t start_time = now_monotonic_high_precision_usec();
+ struct statvfs buff_statvfs;
+
+ if (statvfs(mi->mount_point, &buff_statvfs) < 0) {
+ if(!m->shown_error) {
+ collector_error("DISKSPACE: failed to statvfs() mount point '%s' (disk '%s', filesystem '%s', root '%s')"
+ , mi->mount_point
+ , disk
+ , mi->filesystem?mi->filesystem:""
+ , mi->root?mi->root:""
+ );
+ m->shown_error = 1;
+ }
+ return;
+ }
+
+ if ((now_monotonic_high_precision_usec() - start_time) > slow_timeout)
+ m->slow = 1;
+
+ m->shown_error = 0;
+
+ struct basic_mountinfo bmi;
+ bmi.mount_point = mi->mount_point;
+ bmi.persistent_id = mi->persistent_id;
+ bmi.filesystem = mi->filesystem;
+ bmi.root = mi->root;
+
+ calculate_values_and_show_charts(&bmi, m, &buff_statvfs, update_every);
+}
+
+static inline void do_slow_disk_space_stats(struct basic_mountinfo *mi, int update_every) {
+ struct mount_point_metadata *m = dictionary_get(dict_mountpoints, mi->mount_point);
+
+ m->updated = 1;
+
+ struct statvfs buff_statvfs;
+ if (statvfs(mi->mount_point, &buff_statvfs) < 0) {
+ if(!m->shown_error) {
+ collector_error("DISKSPACE: failed to statvfs() mount point '%s' (disk '%s', filesystem '%s', root '%s')"
+ , mi->mount_point
+ , mi->persistent_id
+ , mi->filesystem?mi->filesystem:""
+ , mi->root?mi->root:""
+ );
+ m->shown_error = 1;
+ }
+ return;
+ }
+ m->shown_error = 0;
+
+ calculate_values_and_show_charts(mi, m, &buff_statvfs, update_every);
+}
+
+static void diskspace_slow_worker_cleanup(void *ptr)
+{
+ UNUSED(ptr);
+
+ collector_info("cleaning up...");
+
+ worker_unregister();
+}
+
+#define WORKER_JOB_SLOW_MOUNTPOINT 0
+#define WORKER_JOB_SLOW_CLEANUP 1
+
+struct slow_worker_data {
+ netdata_thread_t *slow_thread;
+ int update_every;
+};
+
+void *diskspace_slow_worker(void *ptr)
+{
+ struct slow_worker_data *data = (struct slow_worker_data *)ptr;
+
+ worker_register("DISKSPACE_SLOW");
+ worker_register_job_name(WORKER_JOB_SLOW_MOUNTPOINT, "mountpoint");
+ worker_register_job_name(WORKER_JOB_SLOW_CLEANUP, "cleanup");
+
+ struct basic_mountinfo *slow_mountinfo_root = NULL;
+
+ int slow_update_every = data->update_every > SLOW_UPDATE_EVERY ? data->update_every : SLOW_UPDATE_EVERY;
+
+ netdata_thread_cleanup_push(diskspace_slow_worker_cleanup, data->slow_thread);
+
+ usec_t step = slow_update_every * USEC_PER_SEC;
+ usec_t real_step = USEC_PER_SEC;
+ heartbeat_t hb;
+ heartbeat_init(&hb);
+
+ while(service_running(SERVICE_COLLECTORS)) {
+ worker_is_idle();
+ heartbeat_next(&hb, USEC_PER_SEC);
+
+ if (real_step < step) {
+ real_step += USEC_PER_SEC;
+ continue;
+ }
+ real_step = USEC_PER_SEC;
+
+ usec_t start_time = now_monotonic_high_precision_usec();
+
+ if (!dict_mountpoints)
+ continue;
+
+ if(unlikely(!service_running(SERVICE_COLLECTORS))) break;
+
+ // --------------------------------------------------------------------------
+ // disk space metrics
+
+ worker_is_busy(WORKER_JOB_SLOW_MOUNTPOINT);
+
+ netdata_mutex_lock(&slow_mountinfo_mutex);
+ free_basic_mountinfo_list(slow_mountinfo_root);
+ slow_mountinfo_root = slow_mountinfo_tmp_root;
+ slow_mountinfo_tmp_root = NULL;
+ netdata_mutex_unlock(&slow_mountinfo_mutex);
+
+ struct basic_mountinfo *bmi;
+ for(bmi = slow_mountinfo_root; bmi; bmi = bmi->next) {
+ do_slow_disk_space_stats(bmi, slow_update_every);
+
+ if(unlikely(!service_running(SERVICE_COLLECTORS))) break;
+ }
+
+ if(unlikely(!service_running(SERVICE_COLLECTORS))) break;
+
+ worker_is_busy(WORKER_JOB_SLOW_CLEANUP);
+
+ for(bmi = slow_mountinfo_root; bmi; bmi = bmi->next) {
+ struct mount_point_metadata *m = dictionary_get(dict_mountpoints, bmi->mount_point);
+
+ if (m)
+ mount_point_cleanup(bmi->mount_point, m, 1);
+ }
+
+ usec_t dt = now_monotonic_high_precision_usec() - start_time;
+ if (dt > step) {
+ slow_update_every = (dt / USEC_PER_SEC) * 3 / 2;
+ if (slow_update_every % SLOW_UPDATE_EVERY)
+ slow_update_every += SLOW_UPDATE_EVERY - slow_update_every % SLOW_UPDATE_EVERY;
+ step = slow_update_every * USEC_PER_SEC;
+ }
+ }
+
+ netdata_thread_cleanup_pop(1);
+
+ free_basic_mountinfo_list(slow_mountinfo_root);
+
+ return NULL;
+}
+
+static void diskspace_main_cleanup(void *ptr) {
+ rrd_collector_finished();
+ worker_unregister();
+
+ struct netdata_static_thread *static_thread = (struct netdata_static_thread *)ptr;
+ static_thread->enabled = NETDATA_MAIN_THREAD_EXITING;
+
+ collector_info("cleaning up...");
+
+ if (diskspace_slow_thread) {
+ netdata_thread_join(*diskspace_slow_thread, NULL);
+ freez(diskspace_slow_thread);
+ }
+
+ free_basic_mountinfo_list(slow_mountinfo_tmp_root);
+
+ static_thread->enabled = NETDATA_MAIN_THREAD_EXITED;
+}
+
+#define WORKER_JOB_MOUNTINFO 0
+#define WORKER_JOB_MOUNTPOINT 1
+#define WORKER_JOB_CLEANUP 2
+
+#if WORKER_UTILIZATION_MAX_JOB_TYPES < 3
+#error WORKER_UTILIZATION_MAX_JOB_TYPES has to be at least 3
+#endif
+
+int diskspace_function_mount_points(BUFFER *wb, int timeout __maybe_unused, const char *function __maybe_unused,
+ void *collector_data __maybe_unused,
+ rrd_function_result_callback_t result_cb, void *result_cb_data,
+ rrd_function_is_cancelled_cb_t is_cancelled_cb, void *is_cancelled_cb_data,
+ rrd_function_register_canceller_cb_t register_canceller_cb __maybe_unused,
+ void *register_canceller_cb_data __maybe_unused) {
+
+ buffer_flush(wb);
+ wb->content_type = CT_APPLICATION_JSON;
+ buffer_json_initialize(wb, "\"", "\"", 0, true, BUFFER_JSON_OPTIONS_DEFAULT);
+
+ buffer_json_member_add_string(wb, "hostname", rrdhost_hostname(localhost));
+ buffer_json_member_add_uint64(wb, "status", HTTP_RESP_OK);
+ buffer_json_member_add_string(wb, "type", "table");
+ buffer_json_member_add_time_t(wb, "update_every", 1);
+ buffer_json_member_add_string(wb, "help", RRDFUNCTIONS_DISKSPACE_HELP);
+ buffer_json_member_add_array(wb, "data");
+
+ double max_space_util = 0.0;
+ double max_space_avail = 0.0;
+ double max_space_used = 0.0;
+ double max_space_reserved = 0.0;
+
+ double max_inodes_util = 0.0;
+ double max_inodes_avail = 0.0;
+ double max_inodes_used = 0.0;
+ double max_inodes_reserved = 0.0;
+
+ struct mount_point_metadata *mp;
+ dfe_start_write(dict_mountpoints, mp) {
+ if (!mp->function_ready)
+ continue;
+
+ buffer_json_add_array_item_array(wb);
+
+ buffer_json_add_array_item_string(wb, mp_dfe.name);
+ buffer_json_add_array_item_string(wb, string2str(mp->filesystem));
+ buffer_json_add_array_item_string(wb, string2str(mp->mountroot));
+
+ double space_avail = rrddim_get_last_stored_value(mp->rd_space_avail, &max_space_avail, 1.0);
+ double space_used = rrddim_get_last_stored_value(mp->rd_space_used, &max_space_used, 1.0);
+ double space_reserved = rrddim_get_last_stored_value(mp->rd_space_reserved, &max_space_reserved, 1.0);
+ double inodes_avail = rrddim_get_last_stored_value(mp->rd_inodes_avail, &max_inodes_avail, 1.0);
+ double inodes_used = rrddim_get_last_stored_value(mp->rd_inodes_used, &max_inodes_used, 1.0);
+ double inodes_reserved = rrddim_get_last_stored_value(mp->rd_inodes_reserved, &max_inodes_reserved, 1.0);
+
+ double space_util = NAN;
+ if (!isnan(space_avail) && !isnan(space_used)) {
+ space_util = space_avail + space_used > 0 ? space_used * 100.0 / (space_avail + space_used) : 0;
+ max_space_util = MAX(max_space_util, space_util);
+ }
+ double inodes_util = NAN;
+ if (!isnan(inodes_avail) && !isnan(inodes_used)) {
+ inodes_util = inodes_avail + inodes_used > 0 ? inodes_used * 100.0 / (inodes_avail + inodes_used) : 0;
+ max_inodes_util = MAX(max_inodes_util, inodes_util);
+ }
+
+ buffer_json_add_array_item_double(wb, space_util);
+ buffer_json_add_array_item_double(wb, space_avail);
+ buffer_json_add_array_item_double(wb, space_used);
+ buffer_json_add_array_item_double(wb, space_reserved);
+
+ buffer_json_add_array_item_double(wb, inodes_util);
+ buffer_json_add_array_item_double(wb, inodes_avail);
+ buffer_json_add_array_item_double(wb, inodes_used);
+ buffer_json_add_array_item_double(wb, inodes_reserved);
+
+ buffer_json_array_close(wb);
+ }
+ dfe_done(mp);
+
+ buffer_json_array_close(wb); // data
+ buffer_json_member_add_object(wb, "columns");
+ {
+ size_t field_id = 0;
+
+ buffer_rrdf_table_add_field(wb, field_id++, "Mountpoint", "Mountpoint Name",
+ RRDF_FIELD_TYPE_STRING, RRDF_FIELD_VISUAL_VALUE, RRDF_FIELD_TRANSFORM_NONE,
+ 0, NULL, NAN, RRDF_FIELD_SORT_ASCENDING, NULL,
+ RRDF_FIELD_SUMMARY_COUNT, RRDF_FIELD_FILTER_MULTISELECT,
+ RRDF_FIELD_OPTS_VISIBLE | RRDF_FIELD_OPTS_UNIQUE_KEY | RRDF_FIELD_OPTS_STICKY | RRDF_FIELD_OPTS_FULL_WIDTH,
+ NULL);
+ buffer_rrdf_table_add_field(wb, field_id++, "Filesystem", "Mountpoint Filesystem",
+ RRDF_FIELD_TYPE_STRING, RRDF_FIELD_VISUAL_VALUE, RRDF_FIELD_TRANSFORM_NONE,
+ 0, NULL, NAN, RRDF_FIELD_SORT_ASCENDING, NULL,
+ RRDF_FIELD_SUMMARY_COUNT, RRDF_FIELD_FILTER_MULTISELECT,
+ RRDF_FIELD_OPTS_VISIBLE | RRDF_FIELD_OPTS_UNIQUE_KEY,
+ NULL);
+ buffer_rrdf_table_add_field(wb, field_id++, "Root", "Mountpoint Root",
+ RRDF_FIELD_TYPE_STRING, RRDF_FIELD_VISUAL_VALUE, RRDF_FIELD_TRANSFORM_NONE,
+ 0, NULL, NAN, RRDF_FIELD_SORT_ASCENDING, NULL,
+ RRDF_FIELD_SUMMARY_COUNT, RRDF_FIELD_FILTER_MULTISELECT,
+ RRDF_FIELD_OPTS_UNIQUE_KEY,
+ NULL);
+
+ buffer_rrdf_table_add_field(wb, field_id++, "Used%", "Space Utilization",
+ RRDF_FIELD_TYPE_BAR_WITH_INTEGER, RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER,
+ 2, "%", max_space_util, RRDF_FIELD_SORT_DESCENDING, NULL,
+ RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_NONE,
+ RRDF_FIELD_OPTS_VISIBLE,
+ NULL);
+ buffer_rrdf_table_add_field(wb, field_id++, "Avail", "Space Avail",
+ RRDF_FIELD_TYPE_BAR_WITH_INTEGER, RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER,
+ 2, "GiB", max_space_avail, RRDF_FIELD_SORT_DESCENDING, NULL,
+ RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_NONE,
+ RRDF_FIELD_OPTS_VISIBLE,
+ NULL);
+ buffer_rrdf_table_add_field(wb, field_id++, "Used", "Space Used",
+ RRDF_FIELD_TYPE_BAR_WITH_INTEGER, RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER,
+ 2, "GiB", max_space_used, RRDF_FIELD_SORT_DESCENDING, NULL,
+ RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_NONE,
+ RRDF_FIELD_OPTS_VISIBLE,
+ NULL);
+ buffer_rrdf_table_add_field(wb, field_id++, "Reserved", "Space Reserved for root",
+ RRDF_FIELD_TYPE_BAR_WITH_INTEGER, RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER,
+ 2, "GiB", max_space_reserved, RRDF_FIELD_SORT_DESCENDING, NULL,
+ RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_NONE,
+ RRDF_FIELD_OPTS_VISIBLE,
+ NULL);
+
+ buffer_rrdf_table_add_field(wb, field_id++, "iUsed%", "Inodes Utilization",
+ RRDF_FIELD_TYPE_BAR_WITH_INTEGER, RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER,
+ 2, "%", max_inodes_util, RRDF_FIELD_SORT_DESCENDING, NULL,
+ RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_NONE,
+ RRDF_FIELD_OPTS_NONE,
+ NULL);
+ buffer_rrdf_table_add_field(wb, field_id++, "iAvail", "Inodes Avail",
+ RRDF_FIELD_TYPE_BAR_WITH_INTEGER, RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER,
+ 2, "inodes", max_inodes_avail, RRDF_FIELD_SORT_DESCENDING, NULL,
+ RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_NONE,
+ RRDF_FIELD_OPTS_NONE,
+ NULL);
+ buffer_rrdf_table_add_field(wb, field_id++, "iUsed", "Inodes Used",
+ RRDF_FIELD_TYPE_BAR_WITH_INTEGER, RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER,
+ 2, "inodes", max_inodes_used, RRDF_FIELD_SORT_DESCENDING, NULL,
+ RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_NONE,
+ RRDF_FIELD_OPTS_NONE,
+ NULL);
+ buffer_rrdf_table_add_field(wb, field_id++, "iReserved", "Inodes Reserved for root",
+ RRDF_FIELD_TYPE_BAR_WITH_INTEGER, RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER,
+ 2, "inodes", max_inodes_reserved, RRDF_FIELD_SORT_DESCENDING, NULL,
+ RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_NONE,
+ RRDF_FIELD_OPTS_NONE,
+ NULL);
+ }
+
+ buffer_json_object_close(wb); // columns
+ buffer_json_member_add_string(wb, "default_sort_column", "Used%");
+
+ buffer_json_member_add_object(wb, "charts");
+ {
+ buffer_json_member_add_object(wb, "Utilization");
+ {
+ buffer_json_member_add_string(wb, "name", "Utilization");
+ buffer_json_member_add_string(wb, "type", "stacked-bar");
+ buffer_json_member_add_array(wb, "columns");
+ {
+ buffer_json_add_array_item_string(wb, "Used%");
+ }
+ buffer_json_array_close(wb);
+ }
+ buffer_json_object_close(wb);
+
+ buffer_json_member_add_object(wb, "Usage");
+ {
+ buffer_json_member_add_string(wb, "name", "Usage");
+ buffer_json_member_add_string(wb, "type", "stacked-bar");
+ buffer_json_member_add_array(wb, "columns");
+ {
+ buffer_json_add_array_item_string(wb, "Avail");
+ buffer_json_add_array_item_string(wb, "Used");
+ buffer_json_add_array_item_string(wb, "Reserved");
+ }
+ buffer_json_array_close(wb);
+ }
+ buffer_json_object_close(wb);
+
+ buffer_json_member_add_object(wb, "Inodes");
+ {
+ buffer_json_member_add_string(wb, "name", "Inodes");
+ buffer_json_member_add_string(wb, "type", "stacked-bar");
+ buffer_json_member_add_array(wb, "columns");
+ {
+ buffer_json_add_array_item_string(wb, "iAvail");
+ buffer_json_add_array_item_string(wb, "iUsed");
+ buffer_json_add_array_item_string(wb, "iReserved");
+ }
+ buffer_json_array_close(wb);
+ }
+ buffer_json_object_close(wb);
+ }
+ buffer_json_object_close(wb); // charts
+
+ buffer_json_member_add_array(wb, "default_charts");
+ {
+ buffer_json_add_array_item_array(wb);
+ buffer_json_add_array_item_string(wb, "Utilization");
+ buffer_json_add_array_item_string(wb, "Mountpoint");
+ buffer_json_array_close(wb);
+
+ buffer_json_add_array_item_array(wb);
+ buffer_json_add_array_item_string(wb, "Usage");
+ buffer_json_add_array_item_string(wb, "Mountpoint");
+ buffer_json_array_close(wb);
+ }
+ buffer_json_array_close(wb);
+
+ buffer_json_member_add_time_t(wb, "expires", now_realtime_sec() + 1);
+ buffer_json_finalize(wb);
+
+ int response = HTTP_RESP_OK;
+ if(is_cancelled_cb && is_cancelled_cb(is_cancelled_cb_data)) {
+ buffer_flush(wb);
+ response = HTTP_RESP_CLIENT_CLOSED_REQUEST;
+ }
+
+ if(result_cb)
+ result_cb(wb, response, result_cb_data);
+
+ return response;
+}
+
+void *diskspace_main(void *ptr) {
+ worker_register("DISKSPACE");
+ worker_register_job_name(WORKER_JOB_MOUNTINFO, "mountinfo");
+ worker_register_job_name(WORKER_JOB_MOUNTPOINT, "mountpoint");
+ worker_register_job_name(WORKER_JOB_CLEANUP, "cleanup");
+
+ rrd_collector_started();
+ rrd_function_add(localhost, NULL, "mount-points", 10, RRDFUNCTIONS_DISKSPACE_HELP, true, diskspace_function_mount_points, NULL);
+
+ netdata_thread_cleanup_push(diskspace_main_cleanup, ptr);
+
+ cleanup_mount_points = config_get_boolean(CONFIG_SECTION_DISKSPACE, "remove charts of unmounted disks" , cleanup_mount_points);
+
+ int update_every = (int)config_get_number(CONFIG_SECTION_DISKSPACE, "update every", localhost->rrd_update_every);
+ if(update_every < localhost->rrd_update_every)
+ update_every = localhost->rrd_update_every;
+
+ check_for_new_mountpoints_every = (int)config_get_number(CONFIG_SECTION_DISKSPACE, "check for new mount points every", check_for_new_mountpoints_every);
+ if(check_for_new_mountpoints_every < update_every)
+ check_for_new_mountpoints_every = update_every;
+
+ netdata_mutex_init(&slow_mountinfo_mutex);
+
+ diskspace_slow_thread = mallocz(sizeof(netdata_thread_t));
+
+ struct slow_worker_data slow_worker_data = {.slow_thread = diskspace_slow_thread, .update_every = update_every};
+
+ netdata_thread_create(
+ diskspace_slow_thread,
+ "P[diskspace slow]",
+ NETDATA_THREAD_OPTION_JOINABLE,
+ diskspace_slow_worker,
+ &slow_worker_data);
+
+ usec_t step = update_every * USEC_PER_SEC;
+ heartbeat_t hb;
+ heartbeat_init(&hb);
+ while(service_running(SERVICE_COLLECTORS)) {
+ worker_is_idle();
+ /* usec_t hb_dt = */ heartbeat_next(&hb, step);
+
+ if(unlikely(!service_running(SERVICE_COLLECTORS))) break;
+
+ // --------------------------------------------------------------------------
+ // this is smart enough not to reload it every time
+
+ worker_is_busy(WORKER_JOB_MOUNTINFO);
+ mountinfo_reload(0);
+
+ // --------------------------------------------------------------------------
+ // disk space metrics
+
+ netdata_mutex_lock(&slow_mountinfo_mutex);
+ free_basic_mountinfo_list(slow_mountinfo_tmp_root);
+ slow_mountinfo_tmp_root = NULL;
+
+ struct mountinfo *mi;
+ for(mi = disk_mountinfo_root; mi; mi = mi->next) {
+ if(unlikely(mi->flags & (MOUNTINFO_IS_DUMMY | MOUNTINFO_IS_BIND)))
+ continue;
+
+ // exclude mounts made by ProtectHome and ProtectSystem systemd hardening options
+ // https://github.com/netdata/netdata/issues/11498#issuecomment-950982878
+ if(mi->flags & MOUNTINFO_READONLY && mi->flags & MOUNTINFO_IS_IN_SYSD_PROTECTED_LIST && !strcmp(mi->root, mi->mount_point))
+ continue;
+
+ worker_is_busy(WORKER_JOB_MOUNTPOINT);
+ do_disk_space_stats(mi, update_every);
+ if(unlikely(!service_running(SERVICE_COLLECTORS))) break;
+ }
+ netdata_mutex_unlock(&slow_mountinfo_mutex);
+
+ if(unlikely(!service_running(SERVICE_COLLECTORS))) break;
+
+ if(dict_mountpoints) {
+ worker_is_busy(WORKER_JOB_CLEANUP);
+ dictionary_walkthrough_read(dict_mountpoints, mount_point_cleanup_cb, NULL);
+ }
+
+ }
+ worker_unregister();
+
+ netdata_thread_cleanup_pop(1);
+ return NULL;
+}