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src/bin/proxmox-backup-proxy.rs: gather block device stats on datastore

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This commit is contained in:
Dietmar Maurer 2020-05-26 11:20:59 +02:00
parent 3fcc4b4e5c
commit 8c03041a2c
1 changed files with 57 additions and 1 deletions
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58
src/bin/proxmox-backup-proxy.rs
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@ -618,6 +618,8 @@ async fn generate_host_stats() {
use proxmox::sys::linux::procfs::{
read_meminfo, read_proc_stat, read_proc_net_dev, read_loadavg};
use proxmox_backup::config::datastore;
use proxmox_backup::tools::disks::DiskManage;
proxmox_backup::tools::runtime::block_in_place(move || {
@ -680,6 +682,8 @@ async fn generate_host_stats() {
}
}
let disk_manager = DiskManage::new();
match datastore::config() {
Ok((config, _)) => {
let datastore_list: Vec<datastore::DataStoreConfig> =
@ -688,14 +692,44 @@ async fn generate_host_stats() {
for config in datastore_list {
match disk_usage(std::path::Path::new(&config.path)) {
Ok((total, used, _avail)) => {
let rrd_key = format!("datastore/{}", config.name);
let rrd_key = format!("datastore/{}/total", config.name);
rrd_update_gauge(&rrd_key, total as f64);
let rrd_key = format!("datastore/{}/used", config.name);
rrd_update_gauge(&rrd_key, used as f64);
}
Err(err) => {
eprintln!("read disk_usage on {:?} failed - {}", config.path, err);
}
}
let path = std::path::Path::new(&config.path);
match disk_manager.mount_info() {
Ok(mountinfo) => {
if let Some(device) = find_mounted_device(mountinfo, path) {
if let Ok(disk) = disk_manager.clone().disk_by_dev_num(device.into_dev_t()) {
if let Ok(Some(stat)) = disk.read_stat() {
let rrd_key = format!("datastore/{}/read_ios", config.name);
rrd_update_derive(&rrd_key, stat.read_ios as f64);
let rrd_key = format!("datastore/{}/read_bytes", config.name);
rrd_update_derive(&rrd_key, (stat.read_sectors*512) as f64);
let rrd_key = format!("datastore/{}/read_ticks", config.name);
rrd_update_derive(&rrd_key, (stat.read_ticks as f64)/1000.0);
let rrd_key = format!("datastore/{}/write_ios", config.name);
rrd_update_derive(&rrd_key, stat.write_ios as f64);
let rrd_key = format!("datastore/{}/write_bytes", config.name);
rrd_update_derive(&rrd_key, (stat.write_sectors*512) as f64);
let rrd_key = format!("datastore/{}/write_ticks", config.name);
rrd_update_derive(&rrd_key, (stat.write_ticks as f64)/1000.0);
}
}
}
}
Err(err) => {
eprintln!("disk_manager mount_info() failed - {}", err);
}
}
}
}
Err(err) => {
@ -720,3 +754,25 @@ fn disk_usage(path: &std::path::Path) -> Result<(u64, u64, u64), Error> {
Ok((stat.f_blocks*bsize, (stat.f_blocks-stat.f_bfree)*bsize, stat.f_bavail*bsize))
}
pub fn find_mounted_device(
mountinfo: &proxmox::sys::linux::procfs::mountinfo::MountInfo,
path: &std::path::Path,
) -> Option<proxmox::sys::linux::procfs::mountinfo::Device> {
let mut result = None;
let mut match_len = 0;
let root_path = std::path::Path::new("/");
for (_id, entry) in mountinfo {
if entry.root == root_path && path.starts_with(&entry.mount_point) {
let len = entry.mount_point.as_path().as_os_str().len();
if len > match_len {
match_len = len;
result = Some(entry.device);
}
}
}
result
}