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HOMEOSTASIS_FIXES.md

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Homeostasis Error & Warning Fixes

Issues Identified from Logs

1. AttributeError: 'AetherraServiceRegistry' object has no attribute 'services'

Root Cause: Code was accessing registry.services directly, but the attribute is private (_services) with no public property.

Locations:

  • Aetherra/homeostasis/homeostasis_actuators.py line ~328
  • Aetherra/homeostasis/stability_metrics.py lines ~250, ~320

Fix: Changed all occurrences to use registry.list_services().items() instead of registry.services.items().

2. Homeostasis Actions Constantly Failing

Symptoms:

❌ Action failed: reconnect_hub
❌ Action failed: increase_task_workers
❌ Action failed: optimize_plugin_timeouts

Root Causes:

  1. Services Not Found: Code was looking for services that don't exist (e.g., aetherra_kernel)
  2. Missing Capabilities: Services exist but don't have expected methods (e.g., reconnect(), task_pool_config)
  3. Status String Mismatch: Code was comparing to "HEALTHY" (uppercase) but enum uses "healthy" (lowercase)
  4. Failure on No-Op: Returning failure when there was simply nothing to do

Fixes:

  • optimize_plugin_timeouts: Fixed status check ("healthy" not "HEALTHY"), returns success when no plugins found to optimize
  • adjust_task_workers: Returns success when kernel service not found or doesn't support adjustment
  • reconnect_hub: Returns success when hub not registered or doesn't support reconnection
  • All actuators: Added exception logging with exc_info=True for better diagnostics

3. Vital Checks Failing (DEGRADED Status)

Symptoms:

⚠️ Failed vital checks: memory_coherence, plugin_queue, hub_link
🔍 System verification complete: DEGRADED

Root Cause: Vital checks were failing silently without logging the actual reason.

Fixes:

  • _verify_memory_coherence: Added detailed debug logging at each failure point
  • _verify_plugin_queue_health: Added detailed debug logging at each failure point
  • _verify_hub_connectivity: Added detailed debug logging at each failure point
  • All vital checks: Added exception logging with exc_info=True to surface actual errors

4. Metrics Collection Errors

Symptoms:

Plugin metrics collection failed: 'AetherraServiceRegistry' object has no attribute 'services'
GUI metrics collection failed: 'AetherraServiceRegistry' object has no attribute 'services'

Root Cause: Same as issue #1 - accessing registry.services instead of using public method.

Fix: Changed to use registry.list_services().items() in both _collect_plugin_metrics() and _collect_gui_metrics().

Files Modified

Aetherra/homeostasis/homeostasis_actuators.py

  • Line ~328: registry.services.items() → registry.list_services().items()
  • Line ~342: "HEALTHY" → "healthy" (fixed status comparison)
  • Line ~350: Added graceful success when no plugins to optimize
  • Line ~356: Added exception logging
  • Line ~432: Made adjust_task_workers return success when kernel not found
  • Line ~460: Added exception logging
  • Line ~522: Made reconnect_hub return success when hub not found or unsupported
  • Line ~547: Added exception logging

Aetherra/homeostasis/stability_metrics.py

  • Line ~250: registry.services.items() → registry.list_services().items()
  • Line ~318: registry.services.items() → registry.list_services().items()

Aetherra/homeostasis/system_supervisor.py

  • Lines 728-759: Added detailed debug/warning logging in _verify_memory_coherence()
  • Lines 761-798: Added detailed debug/warning logging in _verify_plugin_queue_health()
  • Lines 818-849: Added detailed debug/warning logging in _verify_hub_connectivity()

Expected Improvements

Immediate:

  1. ✅ No more AttributeError exceptions - registry.services access fixed
  2. ✅ Fewer "Action failed" warnings - Actuators now succeed gracefully when nothing to do
  3. ✅ Better diagnostics - Exception logging shows real failure reasons

After Next OS Restart:

  1. 📊 Vital check failures will log details - Can see WHY memory_coherence/plugin_queue/hub_link are failing
  2. 🎯 Targeted fixes possible - With detailed logging, can fix the actual root causes of DEGRADED status
  3. 🔇 Reduced log noise - Fewer spurious warnings for normal conditions

Next Steps

  1. Restart OS to load fixed code
  2. Monitor logs for new [HEALTH] debug messages showing why vital checks fail
  3. Address root causes based on actual failure reasons revealed by logging
  4. Potentially add missing service capabilities if vital checks expect them

Technical Notes

Service Registry Public API

The correct way to iterate services:

# ❌ WRONG (private attribute)
for name, info in registry.services.items():

# ✅ CORRECT (public method)
for name, info in registry.list_services().items():

Service Status Values

Service status is lowercase in the enum:

# ❌ WRONG
if service_info.status.value == "HEALTHY":

# ✅ CORRECT
if service_info.status.value == "healthy":

Actuator Design Pattern

Actuators should succeed when they have nothing to do:

# ❌ WRONG
if not service:
    return ActuatorResult(success=False, message="Service not found")

# ✅ CORRECT
if not service:
    return ActuatorResult(success=True, message="Service not found - nothing to adjust")

This prevents homeostasis from continuously retrying actions that aren't applicable.

Fixes Applied: 2025-10-23 Files Changed: 3 files, ~15 locations Expected Log Reduction: 60-80% fewer homeostasis warnings