CRITICAL ACTION ITEMS - IMMEDIATE ATTENTION REQUIRED

Generated: 2025-10-10 Priority: URGENT Review By: All Agents

🔴 BLOCKER ISSUES - Must Resolve This Week

1. Protocol Scope Decision

Blocker ID: ARCH-001 Impact: Cannot start implementation Responsible: Architect Agent Required: Formal decision to reduce scope to PostgreSQL-only for Phase 1

Proposed Resolution:

DECISION: Phase 1 will implement ONLY PostgreSQL protocol (Gold level)
RATIONALE: 8 protocols is too ambitious for MVP
TIMELINE: PostgreSQL → MySQL → HTTP APIs → Enterprise protocols

Action: Architect creates ADR: docs/adr/001-postgres-protocol-first.md Due: 2025-10-12

2. Network Technology Choice

Blocker ID: ARCH-002 Impact: Cannot design network layer Responsible: Architect Agent Required: Decision on RDMA vs TCP for Phase 1

Proposed Resolution:

DECISION: Phase 1 uses TCP/gRPC with RDMA migration path documented
RATIONALE:
  - RDMA crate v0.1 is immature
  - TCP allows faster development
  - Can migrate to RDMA in Phase 2 without protocol changes

Action: Architect creates ADR: docs/adr/002-tcp-first-rdma-later.md Due: 2025-10-12

3. Storage Engine Choice

Blocker ID: ARCH-003 Impact: Cannot implement storage layer Responsible: Architect Agent Required: Decision on RocksDB vs custom LSM

Proposed Resolution:

DECISION: Phase 1 uses RocksDB directly
RATIONALE:
  - Battle-tested and production-ready
  - Faster time to market
  - Can evaluate custom LSM in Phase 2 if needed
CONFIGURATION:
  - Use column families for different data types
  - Configure compaction strategy per workload

Action: Architect creates ADR: docs/adr/003-use-rocksdb-for-storage.md Due: 2025-10-12

4. CI/CD Pipeline Setup

Blocker ID: TEST-001 Impact: Cannot validate any code Responsible: Tester Agent Required: GitHub Actions workflow with basic tests

Required Components:

Action: Tester creates .github/workflows/ci.yml Due: 2025-10-13

5. Metadata Service Dependencies

Blocker ID: CODE-001 Impact: Wrong dependencies declared Responsible: Coder Agent Required: Fix Cargo.toml dependencies

Current Issue:

# WRONG - this is a client for connecting to etcd servers
etcd-client = "0.14"

Correct Configuration:

# CORRECT - this is the Raft consensus library
raft = "0.7"
prost = "0.13"  # For Raft message serialization
tonic = "0.12"  # For gRPC transport

Action: Coder updates /home/claude/DMD/Cargo.toml Due: 2025-10-11

🟡 HIGH PRIORITY - Complete Within 2 Weeks

6. Type System Implementation

Priority: HIGH Responsible: Coder Agent Required: Core type system before any other code

File: /home/claude/DMD/heliosdb-common/src/types.rs

Required Types:

pub enum DataType {
    Boolean,
    Int16,
    Int32,
    Int64,
    Float32,
    Float64,
    Decimal { precision: u8, scale: u8 },
    Varchar(u32),
    Text,
    Bytea,
    Timestamp,
    Date,
    Vector(u32),  // dimensions
}

pub enum Value {
    // Corresponding value types
}

Action: Coder implements type system Due: 2025-10-20

7. HIDB Protocol Definition

Priority: HIGH Responsible: Architect + Coder Required: Protobuf schemas for inter-tier communication

File: /home/claude/DMD/heliosdb-network/proto/hidb.proto

Required Messages:

PredicatePushdownRequest
FilteredResultSet
VectorSearchRequest
CacheInvalidationNotice
ReplicationDataStream

Action: Architect designs protocol, Coder implements Due: 2025-10-21

8. PostgreSQL Protocol Parser

Priority: HIGH Responsible: Coder Agent Required: Wire protocol implementation for PostgreSQL

File: /home/claude/DMD/heliosdb-compute/src/protocol/postgres/

Components:

Connection establishment
TLS negotiation
SCRAM-SHA-256 authentication
Simple query protocol
Extended query protocol (prepared statements)

Action: Coder implements PostgreSQL protocol handler Due: 2025-10-28

9. Protocol Compliance Tests

Priority: HIGH Responsible: Tester Agent Required: Python client tests for PostgreSQL

File: /home/claude/DMD/tests/protocol_compliance/test_postgres.py

Test Cases:

psycopg2: connect, SELECT 1, prepared statement, transaction
asyncpg: connect, SELECT 1, prepared statement, transaction
SQLAlchemy: connect, basic ORM operations

Action: Tester creates compliance test suite Due: 2025-10-25

10. Security Configuration

Priority: HIGH Responsible: Security Specialist Required: TLS and authentication setup

Components:

TLS 1.3 configuration
Certificate generation for testing
SCRAM-SHA-256 implementation
Password hashing with Argon2

Action: Security creates security configuration guide Due: 2025-10-27

🟢 MEDIUM PRIORITY - Complete Within 1 Month

11. ADR Template and Process

Priority: MEDIUM Responsible: Documenter Agent Required: Architecture Decision Record template

File: /home/claude/DMD/docs/adr/template.md

Action: Documenter creates ADR template and process guide Due: 2025-10-17

12. Raft Integration Design

Priority: MEDIUM Responsible: Architect Agent Required: Detailed design for metadata service with Raft

Components:

Raft log storage (RocksDB)
State machine operations
Snapshot mechanism
Network transport (gRPC)

Action: Architect creates design document Due: 2025-10-30

13. Logging and Observability Setup

Priority: MEDIUM Responsible: Coder Agent Required: Structured logging configuration

Components:

tracing subscriber setup
Log levels configuration
Metrics collection (Prometheus)

Action: Coder implements observability foundation Due: 2025-11-05

Implementation Timeline Summary

Week 1 (Oct 10-17, 2025)

Architectural decisions (ARCH-001, ARCH-002, ARCH-003)
Fix dependencies (CODE-001)
CI/CD setup (TEST-001)
ADR template (Item 11)

Week 2 (Oct 17-24, 2025)

Type system implementation (Item 6)
HIDB protocol design (Item 7)
Protocol compliance tests (Item 9)

Week 3 (Oct 24-31, 2025)

PostgreSQL protocol parser (Item 8)
Security configuration (Item 10)
Raft integration design (Item 12)

Week 4 (Oct 31-Nov 7, 2025)

Complete PostgreSQL handler
Observability setup (Item 13)
Integration testing

Decision Making Process

For architectural decisions (ARCH-001, ARCH-002, ARCH-003):

Architect Agent drafts proposed decision
Reviewer Agent validates against design principles
Coder Agent assesses implementation complexity
Tester Agent evaluates testability
Consensus required from all agents
Document in ADR with rationale

Timeline: All decisions by Oct 12, 2025

Risk Mitigation

If Decisions Delayed Beyond Oct 12

Impact: Phase 1 delivery slips by 1 week per day of delay
Mitigation: Escalate to project leadership
Fallback: Reviewer Agent makes provisional decisions to unblock

If CI/CD Not Ready by Oct 13

Impact: Code quality cannot be validated
Mitigation: Mandatory local testing before commits
Fallback: Manual review process (slow but safe)

If Type System Delayed Beyond Oct 20

Impact: All other implementation blocked
Mitigation: Minimal type system first, expand later
Fallback: Use simple enums, refactor later

Status Tracking

Update this document daily until all critical items resolved.

Last Updated: 2025-10-10 Next Update: 2025-10-11 Update Frequency: Daily until blockers cleared, then weekly

Contact & Escalation

Blockers: Report immediately to Reviewer Agent
Questions: Tag relevant agent in discussion
Urgent Issues: Flag in this document and notify all agents

REMEMBER: No code implementation until architectural decisions are documented in ADRs

Reviewer Agent - HeliosDB Hive Mind Critical Action Items Report Generated: 2025-10-10