Production Deployment: Configuration¶

Part of: Production Deployment Guide

5.1 Database Configuration¶

heliosdb.toml:

# HeliosDB Main Configuration
[cluster]
name = "heliosdb-prod"
node_id = "node-1"
region = "us-east-1"
availability_zone = "us-east-1a"

# Network configuration
[network]
listen_addr = "0.0.0.0:5432"
advertise_addr = "10.0.1.10:5432"
max_connections = 1000
connection_timeout_ms = 30000
keepalive_interval_ms = 10000

# Storage configuration
[storage]
data_dir = "/data/storage"
wal_dir = "/wal"
wal_segment_size_mb = 64
checkpoint_interval_sec = 300
max_wal_size_gb = 10
compression_enabled = true
compression_algorithm = "zstd"
compression_level = 3

# Replication configuration
[replication]
mode = "multi-master"  # Options: master-slave, multi-master, raft
replication_factor = 3
sync_mode = "quorum"  # Options: async, sync, quorum
quorum_size = 2
max_replication_lag_ms = 1000
enable_conflict_resolution = true
conflict_resolution_strategy = "last-write-wins"  # Options: last-write-wins, semantic, custom

# Cache configuration
[cache]
enabled = true
size_mb = 4096
eviction_policy = "lru"  # Options: lru, lfu, arc, adaptive
prefetch_enabled = true
ml_optimization_enabled = true

# Query optimizer configuration
[optimizer]
ai_optimization_enabled = true
parallel_execution_enabled = true
max_parallel_workers = 8
cost_model = "adaptive"  # Options: static, adaptive, ml-based
statistics_auto_update = true
enable_query_hints = true

# Transaction configuration
[transactions]
isolation_level = "serializable"  # Options: read-uncommitted, read-committed, repeatable-read, serializable
max_transaction_duration_sec = 300
deadlock_detection_enabled = true
deadlock_detection_interval_ms = 1000
enable_distributed_transactions = true
two_phase_commit_timeout_ms = 5000

# Security configuration
[security]
tls_enabled = true
tls_cert_path = "/etc/heliosdb/tls/server.crt"
tls_key_path = "/etc/heliosdb/tls/server.key"
tls_ca_path = "/etc/heliosdb/tls/ca.crt"
require_client_cert = true
encryption_at_rest = true
encryption_algorithm = "aes-256-gcm"
kms_provider = "aws"  # Options: aws, gcp, azure, vault, local
kms_key_id = "arn:aws:kms:us-east-1:xxx:key/xxx"

# Authentication
[auth]
enabled = true
default_auth_method = "scram-sha-256"  # Options: password, scram-sha-256, cert, ldap, oauth
session_timeout_min = 60
max_login_attempts = 3
lockout_duration_min = 15

# Authorization
[authz]
rbac_enabled = true
default_privileges = "read-only"
audit_enabled = true

# Monitoring configuration
[monitoring]
prometheus_enabled = true
prometheus_port = 9090
metrics_interval_sec = 15
slow_query_log_enabled = true
slow_query_threshold_ms = 1000
query_log_enabled = true
query_log_sample_rate = 0.01  # Log 1% of queries

# Logging configuration
[logging]
level = "info"  # Options: trace, debug, info, warn, error
format = "json"  # Options: json, text
output = "stdout"  # Options: stdout, file, syslog
log_file_path = "/var/log/heliosdb/heliosdb.log"
log_rotation_size_mb = 100
log_retention_days = 30

# Backup configuration
[backup]
enabled = true
destination = "s3://heliosdb-backups-prod"
schedule = "0 2 * * *"  # Daily at 2 AM
retention_days = 30
compression_enabled = true
encryption_enabled = true

# Advanced features
[features]
# AI/ML features
enable_ai_query_optimization = true
enable_ai_index_advisor = true
enable_predictive_scaling = true
enable_anomaly_detection = true

# Multi-model support
enable_document_store = true
enable_graph_database = true
enable_time_series = true
enable_vector_search = true

# Edge computing
enable_edge_sync = true
edge_cache_size_mb = 1024

# Advanced analytics
enable_materialized_views = true
enable_federated_learning = true
enable_neuromorphic_computing = true
enable_quantum_simulation = false  # Requires quantum hardware

# Performance features
enable_gpu_acceleration = true
enable_simd_optimization = true
enable_energy_optimization = true

# Tenant isolation
enable_multi_tenancy = true
tenant_isolation_level = "strict"  # Options: shared, isolated, strict

5.2 Multi-Model Setup¶

Document Store Configuration:

[document_store]
enabled = true
default_collection_shards = 8
index_backend = "tantivy"
full_text_search_enabled = true
geo_spatial_enabled = true
max_document_size_mb = 16

Graph Database Configuration:

[graph]
enabled = true
engine = "property-graph"  # Options: property-graph, rdf
traversal_engine = "gremlin"
max_traversal_depth = 10
enable_graph_ml = true
centrality_algorithms = ["pagerank", "betweenness", "closeness"]

Time-Series Configuration:

[timeseries]
enabled = true
default_retention_days = 90
downsampling_enabled = true
downsampling_intervals = ["1m", "5m", "1h", "1d"]
compression_algorithm = "gorilla"
rollup_functions = ["avg", "sum", "min", "max", "count"]

Vector Search Configuration:

[vector]
enabled = true
index_type = "hnsw"  # Options: flat, ivf, hnsw, annoy
distance_metric = "cosine"  # Options: euclidean, cosine, dot-product
hnsw_m = 16
hnsw_ef_construction = 200
hnsw_ef_search = 100
dimension_limit = 2048
enable_hybrid_search = true

5.3 Replication Configuration¶

Multi-Master Replication:

[replication.multi_master]
enabled = true
topology = "mesh"  # Options: star, ring, mesh
conflict_resolution = "crdt"  # Options: crdt, last-write-wins, custom
crdt_type = "lww-element-set"
gossip_interval_ms = 100
gossip_fanout = 3
anti_entropy_interval_sec = 60

Tenant Replication (World's First):

[replication.tenant]
enabled = true
replication_mode = "selective"  # Per-tenant replication
ai_predictive_replication = true
data_transformation_enabled = true
semantic_conflict_resolution = true
qos_guaranteed = true
schema_aware_compression = true
automatic_failover = true
migration_mode = "zero-downtime"

5.4 Cache Tuning¶

Unified Cache System:

[cache.unified]
enabled = true
total_size_mb = 8192

# L1 Cache (Process-local)
[cache.l1]
size_mb = 512
type = "lru"
ttl_sec = 60

# L2 Cache (Node-local, shared)
[cache.l2]
size_mb = 2048
type = "arc"  # Adaptive Replacement Cache
ttl_sec = 300

# L3 Cache (Global distributed)
[cache.l3]
size_mb = 5632
type = "distributed-lru"
backend = "redis"  # Options: redis, memcached, custom
redis_cluster = ["redis-1:6379", "redis-2:6379", "redis-3:6379"]
ttl_sec = 1800

# Query result cache
[cache.query]
enabled = true
size_mb = 1024
max_result_size_kb = 1024
ttl_sec = 300
invalidation_strategy = "smart"  # Options: ttl, smart, manual

# Metadata cache
[cache.metadata]
enabled = true
size_mb = 256
ttl_sec = 600

# AI-driven prefetching
[cache.prefetch]
enabled = true
ml_model = "transformer"
prediction_window_sec = 60
confidence_threshold = 0.7

5.5 Performance Optimization¶

CPU Optimization:

[performance.cpu]
worker_threads = 0  # 0 = auto (num_cpus)
blocking_threads = 512
max_parallel_queries = 32
enable_simd = true
enable_avx512 = true
cpu_affinity_enabled = true

Memory Optimization:

[performance.memory]
shared_buffers_mb = 8192
work_mem_mb = 64
maintenance_work_mem_mb = 512
max_prepared_transactions = 100
huge_pages = "try"  # Options: on, off, try
transparent_huge_pages = true

I/O Optimization:

[performance.io]
wal_sync_method = "fdatasync"  # Options: fsync, fdatasync, open_sync
wal_buffers_mb = 32
checkpoint_completion_target = 0.9
effective_io_concurrency = 200
max_wal_senders = 10
wal_keep_size_mb = 1024

Network Optimization:

[performance.network]
tcp_keepalive_enabled = true
tcp_keepalive_idle_sec = 60
tcp_keepalive_interval_sec = 10
tcp_keepalive_count = 6
tcp_nodelay = true
max_packet_size_kb = 64
compression_enabled = true
compression_threshold_bytes = 1024