static void backwards_compatible_config() {
// allow existing configurations to work with the current version of netdata
if(config_exists(CONFIG_SECTION_GLOBAL, "multi threaded web server")) {
int mode = config_get_boolean(CONFIG_SECTION_GLOBAL, "multi threaded web server", 1);
web_server_mode = (mode)?WEB_SERVER_MODE_MULTI_THREADED:WEB_SERVER_MODE_SINGLE_THREADED;
}
// move [global] options to the [web] section
config_move(CONFIG_SECTION_GLOBAL, "http port listen backlog",
CONFIG_SECTION_WEB, "listen backlog");
config_move(CONFIG_SECTION_GLOBAL, "bind socket to IP",
CONFIG_SECTION_WEB, "bind to");
config_move(CONFIG_SECTION_GLOBAL, "bind to",
CONFIG_SECTION_WEB, "bind to");
config_move(CONFIG_SECTION_GLOBAL, "port",
CONFIG_SECTION_WEB, "default port");
config_move(CONFIG_SECTION_GLOBAL, "default port",
CONFIG_SECTION_WEB, "default port");
config_move(CONFIG_SECTION_GLOBAL, "disconnect idle web clients after seconds",
CONFIG_SECTION_WEB, "disconnect idle clients after seconds");
config_move(CONFIG_SECTION_GLOBAL, "respect web browser do not track policy",
CONFIG_SECTION_WEB, "respect do not track policy");
config_move(CONFIG_SECTION_GLOBAL, "web x-frame-options header",
CONFIG_SECTION_WEB, "x-frame-options response header");
config_move(CONFIG_SECTION_GLOBAL, "enable web responses gzip compression",
CONFIG_SECTION_WEB, "enable gzip compression");
config_move(CONFIG_SECTION_GLOBAL, "web compression strategy",
CONFIG_SECTION_WEB, "gzip compression strategy");
config_move(CONFIG_SECTION_GLOBAL, "web compression level",
CONFIG_SECTION_WEB, "gzip compression level");
config_move(CONFIG_SECTION_GLOBAL, "web files owner",
CONFIG_SECTION_WEB, "web files owner");
config_move(CONFIG_SECTION_GLOBAL, "web files group",
CONFIG_SECTION_WEB, "web files group");
config_move(CONFIG_SECTION_BACKEND, "opentsdb host tags",
CONFIG_SECTION_BACKEND, "host tags");
}
static inline void do_disk_space_stats(struct mountinfo *mi, int update_every) {
const char *family = mi->mount_point;
const char *disk = mi->persistent_id;
static SIMPLE_PATTERN *excluded_mountpoints = NULL;
static SIMPLE_PATTERN *excluded_filesystems = NULL;
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", DELAULT_EXLUDED_PATHS),
mode
);
excluded_filesystems = simple_pattern_create(
config_get(CONFIG_SECTION_DISKSPACE, "exclude space metrics on filesystems", DEFAULT_EXCLUDED_FILESYSTEMS),
SIMPLE_PATTERN_EXACT
);
dict_mountpoints = dictionary_create(DICTIONARY_FLAG_SINGLE_THREADED);
}
struct mount_point_metadata *m = dictionary_get(dict_mountpoints, mi->mount_point);
if(unlikely(!m)) {
char var_name[4096 + 1];
snprintfz(var_name, 4096, "plugin:proc:diskspace:%s", mi->mount_point);
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;
}
// check if the mount point is a directory #2407
{
struct stat bs;
if(stat(mi->mount_point, &bs) == -1) {
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) {
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;
}
}
}
do_space = config_get_boolean_ondemand(var_name, "space usage", def_space);
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,
.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
};
m = dictionary_set(dict_mountpoints, mi->mount_point, &mp, sizeof(struct mount_point_metadata));
}
m->updated = 1;
if(unlikely(m->do_space == CONFIG_BOOLEAN_NO && m->do_inodes == CONFIG_BOOLEAN_NO))
return;
if(unlikely(mi->flags & MOUNTINFO_READONLY && !m->collected))
return;
struct statvfs buff_statvfs;
if (statvfs(mi->mount_point, &buff_statvfs) < 0) {
if(!m->shown_error) {
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;
}
m->shown_error = 0;
// 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;
if(likely(btotal >= bavail_root))
bused = btotal - bavail_root;
else
bused = bavail_root - btotal;
#ifdef NETDATA_INTERNAL_CHECKS
if(unlikely(btotal != bavail + breserved_root + bused))
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;
#ifdef NETDATA_INTERNAL_CHECKS
if(unlikely(btotal != bavail + breserved_root + bused))
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))) {
if(unlikely(!m->st_space)) {
m->do_space = CONFIG_BOOLEAN_YES;
m->st_space = rrdset_find_bytype_localhost("disk_space", disk);
if(unlikely(!m->st_space)) {
char title[4096 + 1];
snprintfz(title, 4096, "Disk Space Usage for %s [%s]", family, mi->mount_source);
m->st_space = rrdset_create_localhost(
"disk_space"
, disk
, NULL
, family
, "disk.space"
, title
, "GB"
, 2023
, update_every
, RRDSET_TYPE_STACKED
);
}
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);
}
else
rrdset_next(m->st_space);
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))) {
if(unlikely(!m->st_inodes)) {
m->do_inodes = CONFIG_BOOLEAN_YES;
m->st_inodes = rrdset_find_bytype_localhost("disk_inodes", disk);
if(unlikely(!m->st_inodes)) {
char title[4096 + 1];
snprintfz(title, 4096, "Disk Files (inodes) Usage for %s [%s]", family, mi->mount_source);
m->st_inodes = rrdset_create_localhost(
"disk_inodes"
, disk
, NULL
, family
, "disk.inodes"
, title
, "Inodes"
, 2024
, update_every
, RRDSET_TYPE_STACKED
);
}
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);
}
else
rrdset_next(m->st_inodes);
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++;
}
// --------------------------------------------------------------------------
if(likely(rendered))
m->collected++;
}
