Bump version to v0.1.206

Shared:
- Add memory_bytes, restart_count, uptime_seconds to ServiceData

Agent:
- Add new fields to ServiceStatusInfo struct
- Fetch MemoryCurrent, NRestarts, ExecMainStartTimestamp from systemctl show
- Calculate uptime from start timestamp
- Parse and populate new fields in ServiceData
- Remove unused load_state and sub_state fields

Dashboard:
- Add memory_bytes, restart_count, uptime_seconds to ServiceInfo
- Update header: Service, Status, RAM, Uptime, ↻ (restarts)
- Format memory as MB/GB
- Format uptime as Xd Xh, Xh Xm, or Xm
- Show restart count with ! prefix if > 0 to indicate instability

All metrics obtained from single systemctl show call - zero overhead.

CLAUDE.md

@@ -156,56 +156,6 @@ Complete migration from string-based metrics to structured JSON data. Eliminates
 - ✅ Backward compatibility via bridge conversion to existing UI widgets
 - ✅ All string parsing bugs eliminated
 
-### Cached Collector Architecture (🚧 PLANNED)
-
-**Problem:** Blocking collectors prevent timely ZMQ transmission, causing false "host offline" alerts.
-
-**Previous (Sequential Blocking):**
-```
-Every 1 second:
-  └─ collect_all_data() [BLOCKS for 2-10+ seconds]
-      ├─ CPU (fast: 10ms)
-      ├─ Memory (fast: 20ms)
-      ├─ Disk SMART (slow: 3s per drive × 4 drives = 12s)
-      ├─ Service disk usage (slow: 2-8s per service)
-      └─ Docker (medium: 500ms)
-  └─ send_via_zmq()  [Only after ALL collection completes]
-
-Result: If any collector takes >10s → "host offline" false alert
-```
-
-**New (Cached Independent Collectors):**
-```
-Shared Cache: Arc<RwLock<AgentData>>
-
-Background Collectors (independent async tasks):
-├─ Fast collectors (CPU, RAM, Network)
-│   └─ Update cache every 1 second
-├─ Medium collectors (Services, Docker)
-│   └─ Update cache every 5 seconds
-└─ Slow collectors (Disk usage, SMART data)
-    └─ Update cache every 60 seconds
-
-ZMQ Sender (separate async task):
-Every 1 second:
-  └─ Read current cache
-  └─ Send via ZMQ [Always instant, never blocked]
-```
-
-**Benefits:**
-- ✅ ZMQ sends every 1 second regardless of collector speed
-- ✅ No false "host offline" alerts from slow collectors
-- ✅ Different update rates for different metrics (CPU=1s, SMART=60s)
-- ✅ System stays responsive even with slow operations
-- ✅ Slow collectors can use longer timeouts without blocking
-
-**Implementation:**
-- Shared `AgentData` cache wrapped in `Arc<RwLock<>>`
-- Each collector spawned as independent tokio task
-- Collectors update their section of cache at their own rate
-- ZMQ sender reads cache every 1s and transmits
-- Stale data acceptable for slow-changing metrics (disk usage, SMART)
-
 ### Maintenance Mode
 
 - Agent checks for `/tmp/cm-maintenance` file before sending notifications

Cargo.lock

@@ -1,5 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+# This file is automatically generated by Cargo.
 version = 4
 
 [[package]]
@@ -164,9 +165,9 @@ checksum = "df8670b8c7b9dae1793364eafadf7239c40d669904660c5960d74cfd80b46a53"
 
 [[package]]
 name = "cc"
-version = "1.2.47"
+version = "1.2.46"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cd405d82c84ff7f35739f175f67d8b9fb7687a0e84ccdc78bd3568839827cf07"
+checksum = "b97463e1064cb1b1c1384ad0a0b9c8abd0988e2a91f52606c80ef14aadb63e36"
 dependencies = [
  "find-msvc-tools",
  "jobserver",
@@ -238,9 +239,9 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "4.5.53"
+version = "4.5.52"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c9e340e012a1bf4935f5282ed1436d1489548e8f72308207ea5df0e23d2d03f8"
+checksum = "aa8120877db0e5c011242f96806ce3c94e0737ab8108532a76a3300a01db2ab8"
 dependencies = [
  "clap_builder",
  "clap_derive",
@@ -248,9 +249,9 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.5.53"
+version = "4.5.52"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d76b5d13eaa18c901fd2f7fca939fefe3a0727a953561fefdf3b2922b8569d00"
+checksum = "02576b399397b659c26064fbc92a75fede9d18ffd5f80ca1cd74ddab167016e1"
 dependencies = [
  "anstream",
  "anstyle",
@@ -278,7 +279,7 @@ checksum = "a1d728cc89cf3aee9ff92b05e62b19ee65a02b5702cff7d5a377e32c6ae29d8d"
 
 [[package]]
 name = "cm-dashboard"
-version = "0.1.196"
+version = "0.1.205"
 dependencies = [
  "anyhow",
  "chrono",
@@ -300,7 +301,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-agent"
-version = "0.1.196"
+version = "0.1.205"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -323,7 +324,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-shared"
-version = "0.1.196"
+version = "0.1.205"
 dependencies = [
  "chrono",
  "serde",
@@ -663,9 +664,9 @@ dependencies = [
 
 [[package]]
 name = "hashbrown"
-version = "0.16.1"
+version = "0.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "841d1cc9bed7f9236f321df977030373f4a4163ae1a7dbfe1a51a2c1a51d9100"
+checksum = "5419bdc4f6a9207fbeba6d11b604d481addf78ecd10c11ad51e76c2f6482748d"
 
 [[package]]
 name = "heck"
@@ -878,12 +879,12 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "2.12.1"
+version = "2.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ad4bb2b565bca0645f4d68c5c9af97fba094e9791da685bf83cb5f3ce74acf2"
+checksum = "6717a8d2a5a929a1a2eb43a12812498ed141a0bcfb7e8f7844fbdbe4303bba9f"
 dependencies = [
  "equivalent",
- "hashbrown 0.16.1",
+ "hashbrown 0.16.0",
 ]
 
 [[package]]
@@ -1638,9 +1639,9 @@ dependencies = [
 
 [[package]]
 name = "signal-hook-registry"
-version = "1.4.7"
+version = "1.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7664a098b8e616bdfcc2dc0e9ac44eb231eedf41db4e9fe95d8d32ec728dedad"
+checksum = "b2a4719bff48cee6b39d12c020eeb490953ad2443b7055bd0b21fca26bd8c28b"
 dependencies = [
  "libc",
 ]
@@ -1732,9 +1733,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.111"
+version = "2.0.110"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "390cc9a294ab71bdb1aa2e99d13be9c753cd2d7bd6560c77118597410c4d2e87"
+checksum = "a99801b5bd34ede4cf3fc688c5919368fea4e4814a4664359503e6015b280aea"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1961,9 +1962,9 @@ dependencies = [
 
 [[package]]
 name = "tracing-attributes"
-version = "0.1.31"
+version = "0.1.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7490cfa5ec963746568740651ac6781f701c9c5ea257c58e057f3ba8cf69e8da"
+checksum = "81383ab64e72a7a8b8e13130c49e3dab29def6d0c7d76a03087b3cf71c5c6903"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1972,9 +1973,9 @@ dependencies = [
 
 [[package]]
 name = "tracing-core"
-version = "0.1.35"
+version = "0.1.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a04e24fab5c89c6a36eb8558c9656f30d81de51dfa4d3b45f26b21d61fa0a6c"
+checksum = "b9d12581f227e93f094d3af2ae690a574abb8a2b9b7a96e7cfe9647b2b617678"
 dependencies = [
  "once_cell",
  "valuable",
@@ -2512,9 +2513,9 @@ checksum = "d6bbff5f0aada427a1e5a6da5f1f98158182f26556f345ac9e04d36d0ebed650"
 
 [[package]]
 name = "winnow"
-version = "0.7.14"
+version = "0.7.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a5364e9d77fcdeeaa6062ced926ee3381faa2ee02d3eb83a5c27a8825540829"
+checksum = "21a0236b59786fed61e2a80582dd500fe61f18b5dca67a4a067d0bc9039339cf"
 dependencies = [
  "memchr",
 ]
@@ -2566,18 +2567,18 @@ dependencies = [
 
 [[package]]
 name = "zerocopy"
-version = "0.8.30"
+version = "0.8.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ea879c944afe8a2b25fef16bb4ba234f47c694565e97383b36f3a878219065c"
+checksum = "0894878a5fa3edfd6da3f88c4805f4c8558e2b996227a3d864f47fe11e38282c"
 dependencies = [
  "zerocopy-derive",
 ]
 
 [[package]]
 name = "zerocopy-derive"
-version = "0.8.30"
+version = "0.8.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf955aa904d6040f70dc8e9384444cb1030aed272ba3cb09bbc4ab9e7c1f34f5"
+checksum = "88d2b8d9c68ad2b9e4340d7832716a4d21a22a1154777ad56ea55c51a9cf3831"
 dependencies = [
  "proc-macro2",
  "quote",

agent/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard-agent"
-version = "0.1.196"
+version = "0.1.206"
 edition = "2021"
 
 [dependencies]

agent/src/agent.rs

@@ -4,7 +4,7 @@ use std::time::Duration;
 use tokio::time::interval;
 use tracing::{debug, error, info};
 
-use crate::communication::{AgentCommand, ZmqHandler};
+use crate::communication::ZmqHandler;
 use crate::config::AgentConfig;
 use crate::collectors::{
     Collector,
@@ -134,12 +134,6 @@ impl Agent {
                     // NOTE: With structured data, we might need to implement status tracking differently
                     // For now, we skip this until status evaluation is migrated
                 }
-                // Handle incoming commands (check periodically)
-                _ = tokio::time::sleep(Duration::from_millis(100)) => {
-                    if let Err(e) = self.handle_commands().await {
-                        error!("Error handling commands: {}", e);
-                    }
-                }
                 _ = &mut shutdown_rx => {
                     info!("Shutdown signal received, stopping agent loop");
                     break;
@@ -259,36 +253,4 @@ impl Agent {
         Ok(())
     }
 
-    /// Handle incoming commands from dashboard
-    async fn handle_commands(&mut self) -> Result<()> {
-        // Try to receive a command (non-blocking)
-        if let Ok(Some(command)) = self.zmq_handler.try_receive_command() {
-            info!("Received command: {:?}", command);
-
-            match command {
-                AgentCommand::CollectNow => {
-                    info!("Received immediate collection request");
-                    if let Err(e) = self.collect_and_broadcast().await {
-                        error!("Failed to collect on demand: {}", e);
-                    }
-                }
-                AgentCommand::SetInterval { seconds } => {
-                    info!("Received interval change request: {}s", seconds);
-                    // Note: This would require more complex handling to update the interval
-                    // For now, just acknowledge
-                }
-                AgentCommand::ToggleCollector { name, enabled } => {
-                    info!("Received collector toggle request: {} -> {}", name, enabled);
-                    // Note: This would require more complex handling to enable/disable collectors
-                    // For now, just acknowledge
-                }
-                AgentCommand::Ping => {
-                    info!("Received ping command");
-                    // Maybe send back a pong or status
-                }
-            }
-        }
-        Ok(())
-    }
-
 }

agent/src/collectors/systemd.rs

@@ -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;
@@ -43,9 +43,10 @@ struct ServiceCacheState {
 /// Cached service status information from systemctl list-units
 #[derive(Debug, Clone)]
 struct ServiceStatusInfo {
-    load_state: String,
     active_state: String,
-    sub_state: String,
+    memory_bytes: Option<u64>,
+    restart_count: Option<u32>,
+    start_timestamp: Option<u64>,
 }
 
 impl SystemdCollector {
@@ -86,14 +87,20 @@ impl SystemdCollector {
         let mut complete_service_data = Vec::new();
         for service_name in &monitored_services {
             match self.get_service_status(service_name) {
-                Ok((active_status, _detailed_info)) => {
+                Ok(status_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();
 
+                    // Calculate uptime if we have start timestamp
+                    let uptime_seconds = status_info.start_timestamp.and_then(|start| {
+                        let now = std::time::SystemTime::now()
+                            .duration_since(std::time::UNIX_EPOCH)
+                            .ok()?
+                            .as_secs();
+                        Some(now.saturating_sub(start))
+                    });
+
                     // Sub-service metrics for specific services (always include cached results)
-                    if service_name.contains("nginx") && active_status == "active" {
+                    if service_name.contains("nginx") && status_info.active_state == "active" {
                         let nginx_sites = self.get_nginx_site_metrics();
                         for (site_name, latency_ms) in nginx_sites {
                             let site_status = if latency_ms >= 0.0 && latency_ms < self.config.nginx_latency_critical_ms {
@@ -118,7 +125,7 @@ impl SystemdCollector {
                         }
                     }
 
-                    if service_name.contains("docker") && active_status == "active" {
+                    if service_name.contains("docker") && status_info.active_state == "active" {
                         let docker_containers = self.get_docker_containers();
                         for (container_name, container_status) in docker_containers {
                             // For now, docker containers have no additional metrics
@@ -155,11 +162,12 @@ 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),
+                        service_status: self.calculate_service_status(service_name, &status_info.active_state),
                         sub_services,
+                        memory_bytes: status_info.memory_bytes,
+                        restart_count: status_info.restart_count,
+                        uptime_seconds,
                     };
 
                     // Add to AgentData and cache
@@ -295,14 +303,13 @@ impl SystemdCollector {
             let fields: Vec<&str> = line.split_whitespace().collect();
             if fields.len() >= 4 && fields[0].ends_with(".service") {
                 let service_name = fields[0].trim_end_matches(".service");
-                let load_state = fields.get(1).unwrap_or(&"unknown").to_string();
                 let active_state = fields.get(2).unwrap_or(&"unknown").to_string();
-                let sub_state = fields.get(3).unwrap_or(&"unknown").to_string();
 
                 status_cache.insert(service_name.to_string(), ServiceStatusInfo {
-                    load_state,
                     active_state,
-                    sub_state,
+                    memory_bytes: None,
+                    restart_count: None,
+                    start_timestamp: None,
                 });
             }
         }
@@ -311,9 +318,10 @@ impl SystemdCollector {
         for service_name in &all_service_names {
             if !status_cache.contains_key(service_name) {
                 status_cache.insert(service_name.to_string(), ServiceStatusInfo {
-                    load_state: "not-loaded".to_string(),
                     active_state: "inactive".to_string(),
-                    sub_state: "dead".to_string(),
+                    memory_bytes: None,
+                    restart_count: None,
+                    start_timestamp: None,
                 });
             }
         }
@@ -346,35 +354,63 @@ impl SystemdCollector {
     }
 
     /// Get service status from cache (if available) or fallback to systemctl
-    fn get_service_status(&self, service: &str) -> Result<(String, String)> {
+    fn get_service_status(&self, service: &str) -> Result<ServiceStatusInfo> {
         // Try to get status from cache first
         if let Ok(state) = self.state.read() {
             if let Some(cached_info) = state.service_status_cache.get(service) {
-                let active_status = cached_info.active_state.clone();
+                return Ok(cached_info.clone());
-                let detailed_info = format!(
-                    "LoadState={}\nActiveState={}\nSubState={}",
-                    cached_info.load_state,
-                    cached_info.active_state,
-                    cached_info.sub_state
-                );
-                return Ok((active_status, detailed_info));
             }
         }
 
         // Fallback to systemctl if not in cache (with 2 second timeout)
         let output = Command::new("timeout")
-            .args(&["2", "systemctl", "is-active", &format!("{}.service", service)])
+            .args(&[
+                "2",
+                "systemctl",
+                "show",
+                &format!("{}.service", service),
+                "--property=LoadState,ActiveState,SubState,MemoryCurrent,NRestarts,ExecMainStartTimestamp"
+            ])
             .output()?;
 
-        let active_status = String::from_utf8(output.stdout)?.trim().to_string();
+        let output_str = String::from_utf8(output.stdout)?;
 
-        // Get more detailed info (with 2 second timeout)
+        // Parse properties
-        let output = Command::new("timeout")
+        let mut active_state = String::new();
-            .args(&["2", "systemctl", "show", &format!("{}.service", service), "--property=LoadState,ActiveState,SubState"])
+        let mut memory_bytes = None;
-            .output()?;
+        let mut restart_count = None;
+        let mut start_timestamp = None;
 
-        let detailed_info = String::from_utf8(output.stdout)?;
+        for line in output_str.lines() {
-        Ok((active_status, detailed_info))
+            if let Some(value) = line.strip_prefix("ActiveState=") {
+                active_state = value.to_string();
+            } else if let Some(value) = line.strip_prefix("MemoryCurrent=") {
+                if value != "[not set]" {
+                    memory_bytes = value.parse().ok();
+                }
+            } else if let Some(value) = line.strip_prefix("NRestarts=") {
+                restart_count = value.parse().ok();
+            } else if let Some(value) = line.strip_prefix("ExecMainStartTimestamp=") {
+                if value != "[not set]" && !value.is_empty() {
+                    // Parse timestamp to seconds since epoch
+                    if let Ok(output) = Command::new("date")
+                        .args(&["+%s", "-d", value])
+                        .output()
+                    {
+                        if let Ok(timestamp_str) = String::from_utf8(output.stdout) {
+                            start_timestamp = timestamp_str.trim().parse().ok();
+                        }
+                    }
+                }
+            }
+        }
+
+        Ok(ServiceStatusInfo {
+            active_state,
+            memory_bytes,
+            restart_count,
+            start_timestamp,
+        })
     }
 
     /// Check if service name matches pattern (supports wildcards like nginx*)
@@ -416,80 +452,6 @@ 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 +469,6 @@ 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();

agent/src/communication/mod.rs

@@ -5,10 +5,9 @@ use zmq::{Context, Socket, SocketType};
 
 use crate::config::ZmqConfig;
 
-/// ZMQ communication handler for publishing metrics and receiving commands
+/// ZMQ communication handler for publishing metrics
 pub struct ZmqHandler {
     publisher: Socket,
-    command_receiver: Socket,
 }
 
 impl ZmqHandler {
@@ -26,20 +25,8 @@ impl ZmqHandler {
         publisher.set_sndhwm(1000)?; // High water mark for outbound messages
         publisher.set_linger(1000)?; // Linger time on close
 
-        // Create command receiver socket (PULL socket to receive commands from dashboard)
-        let command_receiver = context.socket(SocketType::PULL)?;
-        let cmd_bind_address = format!("tcp://{}:{}", config.bind_address, config.command_port);
-        command_receiver.bind(&cmd_bind_address)?;
-
-        info!("ZMQ command receiver bound to {}", cmd_bind_address);
-
-        // Set non-blocking mode for command receiver
-        command_receiver.set_rcvtimeo(0)?; // Non-blocking receive
-        command_receiver.set_linger(1000)?;
-
         Ok(Self {
             publisher,
-            command_receiver,
         })
     }
 
@@ -65,36 +52,4 @@ impl ZmqHandler {
         Ok(())
     }
 
-    /// Try to receive a command (non-blocking)
-    pub fn try_receive_command(&self) -> Result<Option<AgentCommand>> {
-        match self.command_receiver.recv_bytes(zmq::DONTWAIT) {
-            Ok(bytes) => {
-                debug!("Received command message ({} bytes)", bytes.len());
-
-                let command: AgentCommand = serde_json::from_slice(&bytes)
-                    .map_err(|e| anyhow::anyhow!("Failed to deserialize command: {}", e))?;
-
-                debug!("Parsed command: {:?}", command);
-                Ok(Some(command))
-            }
-            Err(zmq::Error::EAGAIN) => {
-                // No message available (non-blocking)
-                Ok(None)
-            }
-            Err(e) => Err(anyhow::anyhow!("ZMQ receive error: {}", e)),
-        }
-    }
-}
-
-/// Commands that can be sent to the agent
-#[derive(Debug, Clone, serde::Deserialize, serde::Serialize)]
-pub enum AgentCommand {
-    /// Request immediate metric collection
-    CollectNow,
-    /// Change collection interval
-    SetInterval { seconds: u64 },
-    /// Enable/disable a collector
-    ToggleCollector { name: String, enabled: bool },
-    /// Request status/health check
-    Ping,
 }

agent/src/config/mod.rs

@@ -20,7 +20,6 @@ pub struct AgentConfig {
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct ZmqConfig {
     pub publisher_port: u16,
-    pub command_port: u16,
     pub bind_address: String,
     pub transmission_interval_seconds: u64,
     /// Heartbeat transmission interval in seconds for host connectivity detection

agent/src/config/validation.rs

@@ -7,14 +7,6 @@ pub fn validate_config(config: &AgentConfig) -> Result<()> {
         bail!("ZMQ publisher port cannot be 0");
     }
 
-    if config.zmq.command_port == 0 {
-        bail!("ZMQ command port cannot be 0");
-    }
-
-    if config.zmq.publisher_port == config.zmq.command_port {
-        bail!("ZMQ publisher and command ports cannot be the same");
-    }
-
     if config.zmq.bind_address.is_empty() {
         bail!("ZMQ bind address cannot be empty");
     }

dashboard/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard"
-version = "0.1.196"
+version = "0.1.206"
 edition = "2021"
 
 [dependencies]

dashboard/src/ui/widgets/services.rs

@@ -28,11 +28,12 @@ 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
+    memory_bytes: Option<u64>,
+    restart_count: Option<u32>,
+    uptime_seconds: Option<u64>,
 }
 
 impl ServicesWidget {
@@ -52,8 +53,6 @@ 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 +75,8 @@ 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])
@@ -116,7 +87,7 @@ impl ServicesWidget {
         // Convert Status enum to display text
         let status_str = match info.widget_status {
             Status::Ok => "active",
-            Status::Inactive => "inactive", 
+            Status::Inactive => "inactive",
             Status::Critical => "failed",
             Status::Pending => "pending",
             Status::Warning => "warning",
@@ -124,9 +95,43 @@ impl ServicesWidget {
             Status::Offline => "offline",
         };
 
+        // Format memory
+        let memory_str = info.memory_bytes.map_or("-".to_string(), |bytes| {
+            let mb = bytes as f64 / (1024.0 * 1024.0);
+            if mb >= 1000.0 {
+                format!("{:.1}G", mb / 1024.0)
+            } else {
+                format!("{:.0}M", mb)
+            }
+        });
+
+        // Format uptime
+        let uptime_str = info.uptime_seconds.map_or("-".to_string(), |secs| {
+            let days = secs / 86400;
+            let hours = (secs % 86400) / 3600;
+            let mins = (secs % 3600) / 60;
+
+            if days > 0 {
+                format!("{}d{}h", days, hours)
+            } else if hours > 0 {
+                format!("{}h{}m", hours, mins)
+            } else {
+                format!("{}m", mins)
+            }
+        });
+
+        // Format restarts (show "!" if > 0 to indicate instability)
+        let restart_str = info.restart_count.map_or("-".to_string(), |count| {
+            if count > 0 {
+                format!("!{}", count)
+            } else {
+                "0".to_string()
+            }
+        });
+
         format!(
-            "{:<23} {:<10} {:<8} {:<8}",
+            "{:<23} {:<10} {:<8} {:<8} {:<5}",
-            short_name, status_str, memory_str, disk_str
+            short_name, status_str, memory_str, uptime_str, restart_str
         )
     }
 
@@ -309,11 +314,12 @@ 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
+                memory_bytes: service.memory_bytes,
+                restart_count: service.restart_count,
+                uptime_seconds: service.uptime_seconds,
             };
             self.parent_services.insert(service.name.clone(), parent_info);
 
@@ -327,11 +333,12 @@ 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(),
+                        memory_bytes: None, // Sub-services don't have individual metrics yet
+                        restart_count: None,
+                        uptime_seconds: None,
                     };
                     sub_list.push((sub_service.name.clone(), sub_info));
                 }
@@ -371,23 +378,16 @@ 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(),
+                                    memory_bytes: None,
+                                    restart_count: None,
+                                    uptime_seconds: None,
                                 });
 
                         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) => {
@@ -407,11 +407,12 @@ 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
+                                    memory_bytes: None,
+                                    restart_count: None,
+                                    uptime_seconds: None,
                                 },
                             ));
                             &mut sub_service_list.last_mut().unwrap().1
@@ -419,14 +420,6 @@ 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);
-                            }
                         }
                     }
                 }
@@ -485,8 +478,8 @@ impl ServicesWidget {
 
         // Header
         let header = format!(
-            "{:<25} {:<10} {:<8} {:<8}",
+            "{:<25} {:<10} {:<8} {:<8} {:<5}",
-            "Service:", "Status:", "RAM:", "Disk:"
+            "Service:", "Status:", "RAM:", "Uptime:", "↻:"
         );
         let header_para = Paragraph::new(header).style(Typography::muted());
         frame.render_widget(header_para, content_chunks[0]);

shared/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard-shared"
-version = "0.1.196"
+version = "0.1.206"
 edition = "2021"
 
 [dependencies]

shared/src/agent_data.rs

@@ -136,11 +136,15 @@ 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>,
+    /// Memory usage in bytes (from MemoryCurrent)
+    pub memory_bytes: Option<u64>,
+    /// Number of service restarts (from NRestarts)
+    pub restart_count: Option<u32>,
+    /// Uptime in seconds (calculated from ExecMainStartTimestamp)
+    pub uptime_seconds: Option<u64>,
 }
 
 /// Sub-service data (nginx sites, docker containers, etc.)