HIGHRESOLVEDmemory
Memory leak causing degraded performance
INC-1769967289712Occurred Jan 27, 2026, 05:34 PM

Description

Agent experiencing slowdowns after 4+ hours of continuous operation. Memory usage gradually increases until system becomes unresponsive.

Affected Systems

memory-managementtask-queue

Error Messages

Heap out of memory
JavaScript heap out of memory

Stack Trace

Error: Heap out of memory
    at processTask (worker.js:45)
    at runQueue (queue.js:123)
Root Cause Analysis

Category

code bug

Analysis

Event listeners not being properly cleaned up after task completion

Resolution

Solution

Implemented proper cleanup in task completion handlers. Added explicit removeEventListener calls and connection.close() statements.

Steps Taken

  1. Identified leak using heap profiler
  2. Added cleanup code to task handlers
  3. Tested with 24hr continuous operation
  4. Deployed fix to production

Prevention Measures

  • Added memory monitoring alerts
  • Implemented automatic restarts every 12 hours
  • Added unit tests for resource cleanup
Lessons Learned

Always clean up event listeners and close database connections. Use WeakMap for caching to allow garbage collection.

Impact Metrics
Downtime
120m
Affected Users
1
Impact Score
8/100
Tags
memory-leakperformanceproduction-incident