Session Hell: Khi Blog Post Bị Khủng Hoảng Danh Tính
Email từ “độc giả” sáng thứ hai: “Anh ơi, sao blog về Docker tự nhiên nói về Kubernetes?”
Tôi mở output folder với tâm trạng hoang mang:
- docker-debug-tips.md: nói về K8s
- k8s-scaling-guide.md: nói về Redis
- redis-performance.md: nói về Docker
“Các em ơi… what happened?”
Đây là câu chuyện về khi AI agents của tôi bị “lẫn” như ông ngoại 80 tuổi.
Mục lục
- Phát Hiện Vấn Đề: Monday Morning Horror
- Crime Scene Investigation
- Analytics Agent Memory Bank:
- Content Agent State:
- SEO Agent Keywords:
- Root Cause Analysis: CSI Developer Edition
- Problem #1: Global State Địa Ngục
- Problem #2: Race Condition Kinh Điển
- Problem #3: Anonymous Messages
- Những Giải Pháp Thất Bại
- Attempt #1: Timestamp Everything
- Attempt #2: File Locking
- Attempt #3: Random Sleep (Desperation)
- Eureka Moment: Lúc Đang Pha Trà
- Birth of Session Architecture
- The Vision:
- session-manager.sh Ra Đời:
- Implementation Journey: Ngày Dài Nhất
- 6:00 PM - Rewriting Everything
- 8:00 PM - First Test
- Unexpected Benefits
- Benefit #1: Time Travel Debugging
- Benefit #2: Parallel Paradise
- Benefit #3: Error Investigation
- The Beautiful Isolation
- Challenges và Pain Points
- The Migration Pain
- The Disk Space Surprise
- The Debug Path Hell
- Evolution of Sessions
- V1: Basic Sessions
- V2: Better IDs
- V3: Current Version
- Lessons Learned The Hard Way
- The Happy Ending
- Bug Memorial
- The Case Sensitivity Bug (3 Hours)
- The Cleanup Disaster
- Final Thoughts
Phát Hiện Vấn Đề: Monday Morning Horror
9:00 AM: “Okay team, tạo 3 blog posts nhanh nhé!”
./create-blog.sh "Docker debugging tips" &
./create-blog.sh "Kubernetes scaling guide" &
./create-blog.sh "Redis performance tuning" &9:15 AM: Check kết quả.
9:16 AM: “Ủa???”
Docker blog đang nói về Kubernetes pods. K8s blog listing Redis commands. Redis blog explaining Docker layers.
Tôi: “Các em có okay không?”
Agents: im lặng đáng ngờ
Crime Scene Investigation
Analytics Agent Memory Bank:
Last analyzed: Docker? K8s? Redis? Yes.
Current task: The one with containers
Which one: All of them apparentlyContent Agent State:
Writing about: That thing Analytics researched
Topic details: ¯\_(ツ)_/¯
Just winging it: TrueSEO Agent Keywords:
docker, kubernetes, redis, container,
pod, cluster, cache, all-the-thingsHouston, we have a problem.
Root Cause Analysis: CSI Developer Edition
Problem #1: Global State Địa Ngục
Mọi agent dùng chung files:
current_task.txt # 1 file cho ALL tasks
analysis_result.md # Overwritten mỗi giây
content_draft.md # Survival of the fastest
final_output.md # Frankenstein's monsterTimeline thảm họa:
09:00:00.001 - Docker task writes to current_task.txt
09:00:00.002 - K8s task overwrites it
09:00:00.003 - Redis task overwrites again
09:00:00.004 - Analytics reads: "Redis"
09:00:00.005 - But already researching Docker
09:00:00.006 - Brain.exe has stopped workingProblem #2: Race Condition Kinh Điển
# Log thực tế:
[09:00:01] Analytics: "Bắt đầu phân tích Docker"
[09:00:01] Analytics: "Bắt đầu phân tích K8s"
[09:00:01] Analytics: "Bắt đầu phân tích Redis"
[09:00:02] Content: "Đọc kết quả phân tích"
[09:00:02] Content: "...cái nào?"Problem #3: Anonymous Messages
"Phân tích xong rồi" - Phân tích cái gì?
"Đây là draft" - Draft của bài nào?
"Keywords ready" - Cho topic nào?
"Help me" - Từ agent nào?Những Giải Pháp Thất Bại
Attempt #1: Timestamp Everything
# Genius idea: Dùng timestamp
docker_analysis_091523.md
k8s_analysis_091524.md
# Reality:
docker_analysis_091523.md
docker_analysis_091523.md # Same millisecond!
# Mac: "This is fine"
# Linux: "CONFLICT!"Attempt #2: File Locking
# Create lock when processing
while [ -f processing.lock ]; do
sleep 1
echo "Waiting for my turn..."
done
touch processing.lock
# Problems:
# - Process dies → Eternal lock
# - Deadlock festival
# - Performance = 🐌Attempt #3: Random Sleep (Desperation)
# "AI should think randomly anyway"
sleep $((RANDOM % 5))
# Results:
# - 5x slower
# - Still conflicts
# - Now with random delays!
# - Me: *crying in bash*Eureka Moment: Lúc Đang Pha Trà
4:00 PM. Vừa pha trà vừa suy ngẫm.
“Mỗi task cần có căn cước công dân…”
Nhìn session cookie trong browser
💡 “SESSION ID!”
Web có session. Database có transaction. Tại sao blog creation không có?
Birth of Session Architecture
The Vision:
# Every task = Unique session
SESSION_ID="20240103_143022_abc123"
# Everything belongs to session:
sessions/
└── 20240103_143022_abc123/
├── metadata.json # Who, what, when
├── analytics_output.md # Analytics work
├── content_draft.md # Content work
├── seo_keywords.txt # SEO work
└── final_post.md # The resultsession-manager.sh Ra Đời:
#!/bin/bash
# Session Manager - Giving tasks identity since Day 4
create_session() {
# Unique ID = timestamp + random UUID
local timestamp=$(date +%Y%m%d_%H%M%S)
local uuid=$(uuidgen | tr '[:upper:]' '[:lower:]' | cut -c1-8)
SESSION_ID="${timestamp}_${uuid}"
# Create isolated workspace
SESSION_DIR="sessions/$SESSION_ID"
mkdir -p "$SESSION_DIR"/{input,workspace,output,logs}
# Birth certificate
cat > "$SESSION_DIR/metadata.json" <Implementation Journey: Ngày Dài Nhất
6:00 PM - Rewriting Everything
Cập nhật MỌI agent để support sessions:
# Before - Global chaos:
echo "$analysis" > output/analysis.md
# After - Session isolation:
echo "$analysis" > "sessions/$SESSION_ID/workspace/analysis.md"8 agents × ~50 file operations = 400 chỗ cần sửa 😭
8:00 PM - First Test
# Run 3 tasks simultaneously
./growth-engine.sh create "Docker debugging" &
./growth-engine.sh create "K8s scaling" &
./growth-engine.sh create "Redis performance" &
# Watch the magic
watch -n 1 'ls -la sessions/'Kết quả:
sessions/
├── 20240103_200001_a1b2c3d4/ # Docker task
├── 20240103_200001_e5f6g7h8/ # K8s task
└── 20240103_200001_i9j0k1l2/ # Redis task3 sessions độc lập! 0 conflicts! 0 confusion!
Tôi: happy dance
Unexpected Benefits
Benefit #1: Time Travel Debugging
# "Hôm qua task X chạy thế nào?"
cd sessions/20240102_*/
cat metadata.json
tail logs/agent.log
# Full history preserved!Benefit #2: Parallel Paradise
# Want 10 blogs? No problem!
topics=("Docker" "K8s" "Redis" "MongoDB" "PostgreSQL"
"Nginx" "AWS" "GCP" "Terraform" "Ansible")
for topic in "${topics[@]}"; do
./create-blog.sh "$topic" &
done
# All run in parallel, zero conflictsBenefit #3: Error Investigation
# "Blog Y bị lỗi gì?"
find sessions/ -name "*.log" -exec grep -l ERROR {} \;
# → sessions/20240103_143022_xyz/logs/content.log
# Check exactly what happened
cat sessions/20240103_143022_xyz/logs/content.log
# "Ah, API limit exceeded"The Beautiful Isolation
Mỗi session như một universe độc lập:
sessions/docker_debug_a1b2c3/
├── metadata.json # Task identity card
├── input/
│ └── requirements.txt # What user wanted
├── workspace/
│ ├── analytics/ # Analytics agent workspace
│ ├── content/ # Content agent workspace
│ └── seo/ # SEO agent workspace
├── output/
│ └── final_blog.md # The masterpiece
└── logs/
├── session.log # Overall progress
└── agents/ # Individual agent logsChallenges và Pain Points
The Migration Pain
# Missed one hardcoded path
echo "Done" > output/status.txt # Forgot to update!
# 2 hours debugging why status not found
# Lesson: grep -r "output/" . | wc -l
# Should be: 0
# Was: 47The Disk Space Surprise
# After 1 week:
$ du -sh sessions/
8.3G sessions/
# "Why is disk full??"
# Solution: Auto-archive old sessionsThe Debug Path Hell
# Developer: "Check output file"
# Me: "Which session?"
# Developer: "The one with Docker"
# Me: "...we have 37 Docker sessions"
# Solution: Latest symlink
ln -sf sessions/20240103_newest sessions/latestEvolution of Sessions
V1: Basic Sessions
SESSION_ID="$(date +%s)" # Just timestamp
# Problem: Conflicts in same secondV2: Better IDs
SESSION_ID="$(date +%Y%m%d_%H%M%S)_$RANDOM"
# Problem: RANDOM isn't that randomV3: Current Version
SESSION_ID="$(date +%Y%m%d_%H%M%S)_$(uuidgen | cut -c1-8)"
# Timestamp for sorting + UUID for uniqueness
# Perfect!Lessons Learned The Hard Way
- Global State = Global Pain: Isolation mặc định. Share khi cần thiết.
- Unique IDs Are Life: Không có ID = không có identity = chaos
- Folders Are Cheap: Disk space rẻ. Developer sanity đắt.
- Think Transaction: File operations cũng cần ACID mindset
- Test Concurrent First: Serial testing che giấu race conditions
The Happy Ending
Post-session implementation:
- ✅ 0 confused blog posts
- ✅ 0 identity crisis
- ✅ Can run 50 tasks parallel
- ✅ Full audit trail
- ✅ Time travel debugging
Email từ độc giả: "Anh ơi, tool gì generate nhanh vậy? Share với em được không?"
Me: smiling proudly at sessions folder
Bug Memorial
The Case Sensitivity Bug (3 Hours)
# Created with:
SESSION_ID="ABC123"
# Used with:
session_id="abc123"
# macOS: "Same same!"
# Linux CI: "DIFFERENT! PANIC!"
# Solution: Always lowercaseThe Cleanup Disaster
# Meant to type:
rm -rf sessions/old/*
# Actually typed:
rm -rf sessions/ *
# Space of doom
# Backup saved my lifeFinal Thoughts
Sessions không chỉ fix bug. Chúng mở ra possibilities:
- Parallel execution without fear
- Complete audit trails
- Easy debugging
- Scalability built-in
Từ 8 agents confused về identity, giờ mỗi task có căn cước rõ ràng.
Questions for fellow developers:
- Race condition kinh khủng nhất bạn từng debug?
- Team "global everything" hay "isolate everything"?
- How do you handle temp files in production?
P.S: Nếu bạn đang dùng global state cho concurrent tasks, just don't. Session everything. Trust me.
Ngày 5: Queue Revolution - Khi tôi nhận ra cần build hàng đợi như McDonald's. "Order 66 ready!" 🍟
