Update health_monitor.py

This commit is contained in:
MacRimi
2026-03-23 20:25:27 +01:00
parent c7ef51a73c
commit d34cebc90d

View File

@@ -240,6 +240,10 @@ class HealthMonitor:
self._journalctl_10min_cache = {'output': '', 'time': 0}
self._JOURNALCTL_10MIN_CACHE_TTL = 60 # 1 minute - fresh enough for health checks
# Journalctl 1hour cache - for disk health events (SMART warnings, I/O errors)
self._journalctl_1hour_cache = {'output': '', 'time': 0}
self._JOURNALCTL_1HOUR_CACHE_TTL = 300 # 5 min cache - disk events don't need real-time
# System capabilities - derived from Proxmox storage types at runtime (Priority 1.5)
# SMART detection still uses filesystem check on init (lightweight)
has_smart = os.path.exists('/usr/sbin/smartctl') or os.path.exists('/usr/bin/smartctl')
@@ -282,6 +286,39 @@ class HealthMonitor:
return cache.get('output', '') # Return stale cache on error
def _get_journalctl_1hour_warnings(self) -> str:
"""Get journalctl warnings from last 1 hour, cached for disk health checks.
Used by _check_disk_health_from_events for SMART warnings and I/O errors.
Cached for 5 minutes since disk events don't require real-time detection.
"""
current_time = time.time()
cache = self._journalctl_1hour_cache
# Return cached result if fresh
if cache['output'] and (current_time - cache['time']) < self._JOURNALCTL_1HOUR_CACHE_TTL:
return cache['output']
# Execute journalctl and cache result
try:
result = subprocess.run(
['journalctl', '--since', '1 hour ago', '--no-pager', '-p', 'warning',
'--output=short-precise'],
capture_output=True,
text=True,
timeout=15
)
if result.returncode == 0:
cache['output'] = result.stdout
cache['time'] = current_time
return cache['output']
except subprocess.TimeoutExpired:
print("[HealthMonitor] journalctl 1hour cache: timeout")
except Exception as e:
print(f"[HealthMonitor] journalctl 1hour cache error: {e}")
return cache.get('output', '') # Return stale cache on error
# ─── Lightweight sampling methods for the dedicated vital-signs thread ───
# These ONLY append data to state_history without triggering evaluation,
# persistence, or subprocess-heavy operations.
@@ -4271,24 +4308,17 @@ class HealthMonitor:
disk_issues: Dict[str, Any] = {}
try:
# Check journalctl for warnings/errors related to disks in the last hour
# Include smartd (SMART daemon) messages explicitly
result = subprocess.run(
['journalctl', '--since', '1 hour ago', '--no-pager', '-p', 'warning',
'--output=short-precise'],
capture_output=True,
text=True,
timeout=15
)
# Use cached journalctl output to avoid repeated subprocess calls
journalctl_output = self._get_journalctl_1hour_warnings()
if result.returncode != 0:
if not journalctl_output:
return disk_issues
# Collect all relevant lines per disk
# disk_lines[disk_name] = {'smart_lines': [], 'io_lines': [], 'severity': 'WARNING'}
disk_lines: Dict[str, Dict] = {}
for line in result.stdout.split('\n'):
for line in journalctl_output.split('\n'):
if not line.strip():
continue
line_lower = line.lower()
@@ -4449,8 +4479,6 @@ class HealthMonitor:
except Exception:
pass
except subprocess.TimeoutExpired:
print("[HealthMonitor] journalctl timed out in _check_disk_health_from_events")
except Exception as e:
print(f"[HealthMonitor] Error checking disk health from events: {e}")