Remove RAM and disk collection for services

Complete removal of service resource metrics:

Agent:
- Remove memory_mb and disk_gb fields from ServiceData struct
- Remove get_service_memory_usage() method
- Remove get_service_disk_usage() method
- Remove get_directory_size() method
- Remove unused warn import

Dashboard:
- Remove memory_mb and disk_gb from ServiceInfo struct
- Remove memory/disk display from format_parent_service_line
- Remove memory/disk parsing in legacy metric path
- Remove unused format_disk_size() function

Service resource metrics were slow, unreliable, and never worked
properly since structured data migration. Will be handled differently
in the future.
This commit is contained in:
Christoffer Martinsson 2025-11-28 14:25:12 +01:00
parent e3996fdb84
commit 67b686f8c7
3 changed files with 3 additions and 167 deletions

View File

@ -4,7 +4,7 @@ use cm_dashboard_shared::{AgentData, ServiceData, SubServiceData, SubServiceMetr
use std::process::Command;
use std::sync::RwLock;
use std::time::Instant;
use tracing::{debug, warn};
use tracing::debug;
use super::{Collector, CollectorError};
use crate::config::SystemdConfig;
@ -87,9 +87,6 @@ impl SystemdCollector {
for service_name in &monitored_services {
match self.get_service_status(service_name) {
Ok((active_status, _detailed_info)) => {
let memory_mb = self.get_service_memory_usage(service_name).await.unwrap_or(0.0);
let disk_gb = self.get_service_disk_usage(service_name).await.unwrap_or(0.0);
let mut sub_services = Vec::new();
// Sub-service metrics for specific services (always include cached results)
@ -155,8 +152,6 @@ impl SystemdCollector {
// Create complete service data
let service_data = ServiceData {
name: service_name.clone(),
memory_mb,
disk_gb,
user_stopped: false, // TODO: Integrate with service tracker
service_status: self.calculate_service_status(service_name, &active_status),
sub_services,
@ -416,80 +411,6 @@ impl SystemdCollector {
true
}
/// Get disk usage for a specific service
async fn get_service_disk_usage(&self, service_name: &str) -> Result<f32, CollectorError> {
// Check if this service has configured directory paths
if let Some(dirs) = self.config.service_directories.get(service_name) {
// Service has configured paths - use the first accessible one
for dir in dirs {
if let Some(size) = self.get_directory_size(dir).await {
return Ok(size);
}
}
// If configured paths failed, return 0
return Ok(0.0);
}
// No configured path - try to get WorkingDirectory from systemctl (with 2 second timeout)
let output = Command::new("timeout")
.args(&["2", "systemctl", "show", &format!("{}.service", service_name), "--property=WorkingDirectory"])
.output()
.map_err(|e| CollectorError::SystemRead {
path: format!("WorkingDirectory for {}", service_name),
error: e.to_string(),
})?;
let output_str = String::from_utf8_lossy(&output.stdout);
for line in output_str.lines() {
if line.starts_with("WorkingDirectory=") && !line.contains("[not set]") {
let dir = line.strip_prefix("WorkingDirectory=").unwrap_or("");
if !dir.is_empty() && dir != "/" {
return Ok(self.get_directory_size(dir).await.unwrap_or(0.0));
}
}
}
Ok(0.0)
}
/// Get size of a directory in GB (with 2 second timeout)
async fn get_directory_size(&self, path: &str) -> Option<f32> {
use super::run_command_with_timeout;
// Use -s (summary) and --apparent-size for speed, 2 second timeout
let mut cmd = Command::new("sudo");
cmd.args(&["du", "-s", "--apparent-size", "--block-size=1", path]);
let output = run_command_with_timeout(cmd, 2).await.ok()?;
if !output.status.success() {
// Log permission errors for debugging but don't spam logs
let stderr = String::from_utf8_lossy(&output.stderr);
if stderr.contains("Permission denied") {
debug!("Permission denied accessing directory: {}", path);
} else if stderr.contains("timed out") {
warn!("Directory size check timed out for {}", path);
} else {
debug!("Failed to get size for directory {}: {}", path, stderr);
}
return None;
}
let output_str = String::from_utf8(output.stdout).ok()?;
let size_str = output_str.split_whitespace().next()?;
if let Ok(size_bytes) = size_str.parse::<u64>() {
let size_gb = size_bytes as f32 / (1024.0 * 1024.0 * 1024.0);
// Return size even if very small (minimum 0.001 GB = 1MB for visibility)
if size_gb > 0.0 {
Some(size_gb.max(0.001))
} else {
None
}
} else {
None
}
}
/// Calculate service status, taking user-stopped services into account
fn calculate_service_status(&self, service_name: &str, active_status: &str) -> Status {
match active_status.to_lowercase().as_str() {
@ -507,33 +428,6 @@ impl SystemdCollector {
}
}
/// Get memory usage for a specific service
async fn get_service_memory_usage(&self, service_name: &str) -> Result<f32, CollectorError> {
let output = Command::new("systemctl")
.args(&["show", &format!("{}.service", service_name), "--property=MemoryCurrent"])
.output()
.map_err(|e| CollectorError::SystemRead {
path: format!("memory usage for {}", service_name),
error: e.to_string(),
})?;
let output_str = String::from_utf8_lossy(&output.stdout);
for line in output_str.lines() {
if line.starts_with("MemoryCurrent=") {
if let Some(mem_str) = line.strip_prefix("MemoryCurrent=") {
if mem_str != "[not set]" {
if let Ok(memory_bytes) = mem_str.parse::<u64>() {
return Ok(memory_bytes as f32 / (1024.0 * 1024.0)); // Convert to MB
}
}
}
}
}
Ok(0.0)
}
/// Check if service collection cache should be updated
fn should_update_cache(&self) -> bool {
let state = self.state.read().unwrap();

View File

@ -28,8 +28,6 @@ pub struct ServicesWidget {
#[derive(Clone)]
struct ServiceInfo {
memory_mb: Option<f32>,
disk_gb: Option<f32>,
metrics: Vec<(String, f32, Option<String>)>, // (label, value, unit)
widget_status: Status,
service_type: String, // "nginx_site", "container", "image", or empty for parent services
@ -52,8 +50,6 @@ impl ServicesWidget {
if metric_name.starts_with("service_") {
if let Some(end_pos) = metric_name
.rfind("_status")
.or_else(|| metric_name.rfind("_memory_mb"))
.or_else(|| metric_name.rfind("_disk_gb"))
.or_else(|| metric_name.rfind("_latency_ms"))
{
let service_part = &metric_name[8..end_pos]; // Remove "service_" prefix
@ -76,36 +72,8 @@ impl ServicesWidget {
None
}
/// Format disk size with appropriate units (kB/MB/GB)
fn format_disk_size(size_gb: f32) -> String {
let size_mb = size_gb * 1024.0; // Convert GB to MB
if size_mb >= 1024.0 {
// Show as GB
format!("{:.1}GB", size_gb)
} else if size_mb >= 1.0 {
// Show as MB
format!("{:.0}MB", size_mb)
} else if size_mb >= 0.001 {
// Convert to kB
let size_kb = size_mb * 1024.0;
format!("{:.0}kB", size_kb)
} else {
// Show very small sizes as bytes
let size_bytes = size_mb * 1024.0 * 1024.0;
format!("{:.0}B", size_bytes)
}
}
/// Format parent service line - returns text without icon for span formatting
fn format_parent_service_line(&self, name: &str, info: &ServiceInfo) -> String {
let memory_str = info
.memory_mb
.map_or("0M".to_string(), |m| format!("{:.0}M", m));
let disk_str = info
.disk_gb
.map_or("0".to_string(), |d| Self::format_disk_size(d));
// Truncate long service names to fit layout (account for icon space)
let short_name = if name.len() > 22 {
format!("{}...", &name[..19])
@ -125,8 +93,8 @@ impl ServicesWidget {
};
format!(
"{:<23} {:<10} {:<8} {:<8}",
short_name, status_str, memory_str, disk_str
"{:<23} {:<10}",
short_name, status_str
)
}
@ -309,8 +277,6 @@ impl Widget for ServicesWidget {
for service in &agent_data.services {
// Store parent service
let parent_info = ServiceInfo {
memory_mb: Some(service.memory_mb),
disk_gb: Some(service.disk_gb),
metrics: Vec::new(), // Parent services don't have custom metrics
widget_status: service.service_status,
service_type: String::new(), // Parent services have no type
@ -327,8 +293,6 @@ impl Widget for ServicesWidget {
.collect();
let sub_info = ServiceInfo {
memory_mb: None, // Not used for sub-services
disk_gb: None, // Not used for sub-services
metrics,
widget_status: sub_service.service_status,
service_type: sub_service.service_type.clone(),
@ -371,8 +335,6 @@ impl ServicesWidget {
self.parent_services
.entry(parent_service)
.or_insert(ServiceInfo {
memory_mb: None,
disk_gb: None,
metrics: Vec::new(),
widget_status: Status::Unknown,
service_type: String::new(),
@ -380,14 +342,6 @@ impl ServicesWidget {
if metric.name.ends_with("_status") {
service_info.widget_status = metric.status;
} else if metric.name.ends_with("_memory_mb") {
if let Some(memory) = metric.value.as_f32() {
service_info.memory_mb = Some(memory);
}
} else if metric.name.ends_with("_disk_gb") {
if let Some(disk) = metric.value.as_f32() {
service_info.disk_gb = Some(disk);
}
}
}
Some(sub_name) => {
@ -407,8 +361,6 @@ impl ServicesWidget {
sub_service_list.push((
sub_name.clone(),
ServiceInfo {
memory_mb: None,
disk_gb: None,
metrics: Vec::new(),
widget_status: Status::Unknown,
service_type: String::new(), // Unknown type in legacy path
@ -419,14 +371,6 @@ impl ServicesWidget {
if metric.name.ends_with("_status") {
sub_service_info.widget_status = metric.status;
} else if metric.name.ends_with("_memory_mb") {
if let Some(memory) = metric.value.as_f32() {
sub_service_info.memory_mb = Some(memory);
}
} else if metric.name.ends_with("_disk_gb") {
if let Some(disk) = metric.value.as_f32() {
sub_service_info.disk_gb = Some(disk);
}
}
}
}

View File

@ -136,8 +136,6 @@ pub struct PoolDriveData {
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ServiceData {
pub name: String,
pub memory_mb: f32,
pub disk_gb: f32,
pub user_stopped: bool,
pub service_status: Status,
pub sub_services: Vec<SubServiceData>,