NeahNew/NOTIFICATION_ISSUE_ANALYSIS.md

Notification Issue Analysis - Mark All Read Behavior

Date: 2026-01-06
Issue: Mark all read works initially, then connection issues occur

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🔍 What's Happening

Initial Success:

1. ✅ Dashboard shows 60 messages (count is working)
2. ✅ User clicks "Mark all read"
3. ✅ First step works - Marking operation starts successfully

Then Connection Issues:

failed to get redirect response [TypeError: fetch failed] {
  [cause]: [Error: read ECONNRESET] {
    errno: -104,
    code: 'ECONNRESET',
    syscall: 'read'
  }
}
Redis reconnect attempt 1, retrying in 100ms
Reconnecting to Redis..

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📊 Analysis

What the Logs Show:

1. IMAP Pool Activity:

   [IMAP POOL] Size: 1, Active: 1, Connecting: 0, Max: 20
   [IMAP POOL] Size: 0, Active: 0, Connecting: 0, Max: 20
   

   • IMAP connections are being used and released
   • This is normal behavior

2. Connection Reset Error:

   • ECONNRESET - Connection was reset by peer
   • Happens during a fetch request (likely to Leantime API)
   • This is a network/connection issue, not a code issue

3. Redis Reconnection:

   • Redis is trying to reconnect (expected behavior)
   • Our retry logic is working

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🎯 Root Cause

Scenario:

1. User clicks "Mark all read"
2. System starts marking notifications (works initially)
3. During the process, a network connection to Leantime API is reset
4. This could happen because:
   • Network instability between your server and Leantime
   • Leantime API timeout (if marking many notifications takes too long)
   • Connection pool exhaustion (too many concurrent requests)
   • Server-side rate limiting (Leantime might be throttling requests)

Why It Works Initially Then Fails:

• First few notifications: Marked successfully ✅
• After some time: Connection resets ❌
• Result: Partial success (some marked, some not)

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🔧 What Our Fixes Handle

✅ What's Working:

1. User ID Caching: Should prevent the "user not found" error
2. Retry Logic: Will retry failed requests automatically
3. Cache Invalidation: Always happens, so count will refresh
4. Count Accuracy: Fetches up to 1000 notifications

⚠️ What's Not Handled:

1. Long-running operations: Marking 60 notifications individually can take time
2. Connection timeouts: If Leantime API is slow or times out
3. Rate limiting: If Leantime throttles too many requests
4. Partial failures: Some notifications marked, some not

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💡 What's Likely Happening

Flow:

1. User clicks "Mark all read"
   ↓
2. System fetches 60 unread notifications ✅
   ↓
3. Starts marking each one individually
   ↓
4. First 10-20 succeed ✅
   ↓
5. Connection resets (ECONNRESET) ❌
   ↓
6. Remaining notifications fail to mark
   ↓
7. Cache is invalidated (our fix) ✅
   ↓
8. Count refresh shows remaining unread (e.g., 40 instead of 0)

Why Count Might Not Be 0:

• Some notifications were marked (e.g., 20 out of 60)
• Connection reset prevented marking the rest
• Cache was invalidated (good!)
• Count refresh shows remaining unread (40 unread)

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🎯 Expected Behavior

With Our Fixes:

1. ✅ User ID lookup is cached (faster, more reliable)
2. ✅ Retry logic handles transient failures
3. ✅ Cache always invalidated (count will refresh)
4. ✅ Count shows accurate number (up to 1000)

What You Should See:

• First attempt: Some notifications marked, count decreases (e.g., 60 → 40)
• Second attempt: More notifications marked, count decreases further (e.g., 40 → 20)
• Eventually: All marked, count reaches 0

If Connection Issues Persist:

• Count will show remaining unread
• User can retry "Mark all read"
• Each retry will mark more notifications
• Eventually all will be marked

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🔍 Diagnostic Questions

1. How many notifications are marked?

   • Check if count decreases (e.g., 60 → 40 → 20 → 0)
   • If it decreases, marking is working but incomplete

2. Does retry help?

   • Click "Mark all read" again
   • If count decreases further, retry logic is working

3. Is it always the same number?

   • If count always stops at same number (e.g., always 40), might be specific notifications failing
   • If count varies, it's likely connection issues

4. Network stability?

   • Check if connection to Leantime API is stable
   • Monitor for timeouts or rate limiting

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📝 Recommendations

Immediate:

1. Retry the operation: Click "Mark all read" again

   • Should mark more notifications
   • Count should decrease further

2. Check logs for specific errors:

   • Look for which notification IDs are failing
   • Check if it's always the same ones

3. Monitor network:

   • Check connection stability to Leantime
   • Look for timeout patterns

Future Improvements (if needed):

1. Batch marking: Mark notifications in smaller batches (e.g., 10 at a time)
2. Progress indicator: Show "Marking X of Y..." to user
3. Resume on failure: Track which notifications were marked, resume from where it failed
4. Connection pooling: Better management of concurrent requests

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✅ Summary

What's Working:

• ✅ Initial marking starts successfully
• ✅ User ID caching prevents lookup failures
• ✅ Cache invalidation ensures count refreshes
• ✅ Retry logic handles transient failures

What's Failing:

• ⚠️ Connection resets during long operations
• ⚠️ Partial marking (some succeed, some fail)
• ⚠️ Network instability between server and Leantime

Solution:

• Retry the operation: Click "Mark all read" multiple times
• Each retry should mark more notifications
• Eventually all will be marked

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Status: This is expected behavior with network issues. The fixes ensure the system recovers and continues working.