625 lines
26 KiB
Markdown
625 lines
26 KiB
Markdown
# MY Network Architecture Specification
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## Архитектурный Обзор
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MY Network представляет собой многоуровневую архитектуру overlay протокола, интегрированную с существующей системой my-uploader-bot без нарушения её функциональности.
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## Overlay Architecture Diagram
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```
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┌─────────────────────────────────────────────────────────────────┐
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│ MY Network Layer │
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├─────────────────────────────────────────────────────────────────┤
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│ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ │
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│ │ P2P Manager │ │ Consensus │ │ Replication │ │
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│ │ │ │ Engine │ │ Manager │ │
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│ └─────────────┘ └─────────────┘ └─────────────┘ │
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├─────────────────────────────────────────────────────────────────┤
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│ Integration Layer │
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├─────────────────────────────────────────────────────────────────┤
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│ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ │
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│ │ Content API │ │ Storage API │ │ Auth API │ │
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│ │ (Existing) │ │ (Existing) │ │ (Existing) │ │
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│ └─────────────┘ └─────────────┘ └─────────────┘ │
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├─────────────────────────────────────────────────────────────────┤
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│ Core Data Layer │
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├─────────────────────────────────────────────────────────────────┤
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│ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ │
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│ │StoredContent│ │EncryptionKey│ │ UserContent │ │
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│ │ Model │ │ Model │ │ Model │ │
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│ └─────────────┘ └─────────────┘ └─────────────┘ │
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└─────────────────────────────────────────────────────────────────┘
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```
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## Интеграция с Существующей StoredContent Моделью
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### Расширение StoredContent для MY Network
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```python
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# Новые поля для MY Network (добавляются через миграцию)
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class StoredContentExtension:
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# MY Network specific fields
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my_network_enabled = Column(Boolean, default=False)
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replica_count = Column(Integer, default=0)
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replication_status = Column(String(32), default="none")
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consensus_achieved = Column(Boolean, default=False)
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# Peer information
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replicated_on_peers = Column(ARRAY(String), default=list)
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last_sync_timestamp = Column(DateTime, nullable=True)
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# Network metadata
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network_metadata = Column(JSONB, default=dict)
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```
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### Состояния Контента и Их Связи
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#### 1. Encrypted Content State
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```python
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# Зашифрованный контент в MY Network
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encrypted_content = StoredContent(
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hash="sha256:abc123...",
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encrypted=True,
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encryption_key_id="uuid-key-id",
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content_type="audio",
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my_network_enabled=True
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)
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```
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#### 2. Decrypted Content State (через decrypted_content_id)
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```python
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# Расшифрованная версия связана через специальное поле
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decrypted_content = StoredContent(
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hash="sha256:def456...",
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encrypted=False,
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original_encrypted_id=encrypted_content.id, # Обратная связь
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content_type="audio",
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my_network_enabled=True
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)
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# В encrypted_content добавляется:
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encrypted_content.decrypted_content_id = decrypted_content.id
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```
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#### 3. Preview Content State
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```python
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# Превью версия для публичного доступа
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preview_content = StoredContent(
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hash="sha256:ghi789...",
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encrypted=False,
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content_type="audio",
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file_size=small_size, # Урезанная версия
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tags=["preview"],
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parent_content_id=encrypted_content.id, # Связь с оригиналом
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my_network_enabled=True
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)
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```
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### Content State Relationship Model
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```sql
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-- Новая таблица для управления связями контента
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CREATE TABLE content_relationships (
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id UUID PRIMARY KEY,
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parent_content_id UUID REFERENCES stored_content(id),
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child_content_id UUID REFERENCES stored_content(id),
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relationship_type VARCHAR(32) NOT NULL, -- 'encrypted', 'decrypted', 'preview'
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created_at TIMESTAMP DEFAULT NOW(),
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UNIQUE(parent_content_id, child_content_id, relationship_type)
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);
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-- Индексы для производительности
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CREATE INDEX idx_content_rel_parent ON content_relationships(parent_content_id);
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CREATE INDEX idx_content_rel_child ON content_relationships(child_content_id);
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CREATE INDEX idx_content_rel_type ON content_relationships(relationship_type);
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```
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## Алгоритмы Репликации Всех Состояний
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### 1. Multi-State Replication Algorithm
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```python
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class ContentStateReplicator:
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async def replicate_content_group(self, content_group: ContentGroup):
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"""
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Реплицирует группу связанных состояний контента
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"""
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# Шаг 1: Определить все связанные состояния
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states = await self.discover_content_states(content_group.root_id)
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# Шаг 2: Проверить целостность связей
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await self.verify_state_relationships(states)
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# Шаг 3: Создать план репликации
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replication_plan = await self.create_replication_plan(states)
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# Шаг 4: Выполнить репликацию по плану
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for batch in replication_plan.batches:
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await self.replicate_batch(batch)
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await self.verify_batch_integrity(batch)
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# Шаг 5: Обновить метаданные о репликации
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await self.update_replication_metadata(content_group, states)
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```
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### 2. State Discovery Algorithm
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```python
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async def discover_content_states(root_content_id: str) -> List[ContentState]:
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"""
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Обнаруживает все связанные состояния контента
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"""
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states = []
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visited = set()
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# BFS поиск всех связанных состояний
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queue = [root_content_id]
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while queue:
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content_id = queue.pop(0)
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if content_id in visited:
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continue
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visited.add(content_id)
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content = await StoredContent.get_by_id(content_id)
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if not content:
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continue
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states.append(ContentState(
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content=content,
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relationships=await self.get_relationships(content_id)
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))
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# Добавить связанные состояния в очередь
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relationships = await self.get_relationships(content_id)
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for rel in relationships:
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if rel.child_content_id not in visited:
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queue.append(rel.child_content_id)
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return states
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```
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### 3. Atomic State Replication
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```python
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class AtomicStateReplication:
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async def replicate_state_group(self, states: List[ContentState],
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target_peers: List[PeerNode]):
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"""
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Атомарная репликация группы состояний
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"""
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transaction_id = str(uuid4())
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try:
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# Phase 1: Prepare - подготовка к репликации
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await self.prepare_replication(transaction_id, states, target_peers)
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# Phase 2: Transfer - передача данных
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for state in states:
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await self.transfer_state(state, target_peers, transaction_id)
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# Phase 3: Verify - проверка целостности
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verification_results = await self.verify_replicated_states(
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states, target_peers, transaction_id
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)
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# Phase 4: Commit or Abort
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if all(verification_results):
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await self.commit_replication(transaction_id, target_peers)
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else:
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await self.abort_replication(transaction_id, target_peers)
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raise ReplicationError("State verification failed")
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except Exception as e:
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await self.cleanup_failed_replication(transaction_id, target_peers)
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raise e
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```
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## MY Network Service Layer
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### Service Component Architecture
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```python
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# MY Network Service Manager
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class MYNetworkService:
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def __init__(self):
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self.p2p_manager = P2PManager()
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self.consensus_engine = ConsensusEngine()
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self.replication_manager = ReplicationManager()
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self.sync_coordinator = SyncCoordinator()
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self.content_discovery = ContentDiscoveryService()
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async def start_service(self):
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"""Запуск MY Network сервиса"""
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await self.p2p_manager.initialize()
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await self.consensus_engine.start()
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await self.replication_manager.start()
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await self.sync_coordinator.start()
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# Регистрация в сети
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await self.register_node()
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async def register_node(self):
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"""Регистрация ноды в MY Network"""
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node_info = {
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"node_id": self.get_node_id(),
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"address": self.get_public_address(),
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"capabilities": self.get_node_capabilities(),
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"content_stats": await self.get_content_statistics()
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}
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await self.p2p_manager.announce_node(node_info)
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```
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### P2P Communication Layer
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```python
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class P2PManager:
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def __init__(self):
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self.peers = {}
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self.message_handlers = {}
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self.connection_pool = ConnectionPool()
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async def handle_peer_message(self, peer_id: str, message: dict):
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"""Обработка сообщений от пиров"""
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msg_type = message.get("type")
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handler = self.message_handlers.get(msg_type)
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if handler:
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await handler(peer_id, message)
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else:
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logger.warning(f"Unknown message type: {msg_type}")
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async def broadcast_content_announcement(self, content: StoredContent):
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"""Анонс нового контента в сети"""
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announcement = {
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"type": "content_announcement",
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"content_hash": content.hash,
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"content_type": content.content_type,
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"encrypted": content.encrypted,
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"file_size": content.file_size,
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"timestamp": datetime.utcnow().isoformat()
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}
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# Отправка всем активным пирам
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for peer_id in self.get_active_peers():
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await self.send_message(peer_id, announcement)
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```
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### Consensus Engine Implementation
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```python
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class ConsensusEngine:
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def __init__(self, min_quorum: int = 3):
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self.min_quorum = min_quorum
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self.pending_votes = {}
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self.consensus_results = {}
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async def propose_content(self, content_hash: str) -> bool:
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"""Предложение контента для консенсуса"""
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proposal_id = str(uuid4())
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proposal = {
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"id": proposal_id,
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"content_hash": content_hash,
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"proposer": self.node_id,
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"timestamp": datetime.utcnow(),
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"votes": {},
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"status": "pending"
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}
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self.pending_votes[proposal_id] = proposal
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# Отправка предложения пирам
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await self.broadcast_proposal(proposal)
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# Ожидание консенсуса с таймаутом
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result = await self.wait_for_consensus(proposal_id, timeout=30)
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return result
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async def vote_on_proposal(self, proposal_id: str, vote: bool):
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"""Голосование по предложению"""
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if proposal_id not in self.pending_votes:
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return False
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proposal = self.pending_votes[proposal_id]
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proposal["votes"][self.node_id] = {
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"vote": vote,
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"timestamp": datetime.utcnow(),
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"signature": await self.sign_vote(proposal_id, vote)
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}
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# Проверка достижения консенсуса
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await self.check_consensus(proposal_id)
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```
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## Content Discovery & Routing
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### Distributed Hash Table (DHT) для Content Discovery
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```python
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class ContentDHT:
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def __init__(self, node_id: str):
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self.node_id = node_id
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self.routing_table = {}
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self. content_index = {}
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async def announce_content(self, content_hash: str, content_info: dict):
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"""Анонс контента в DHT"""
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key_hash = self.hash_key(content_hash)
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responsible_nodes = await self.find_responsible_nodes(key_hash)
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for node in responsible_nodes:
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await self.store_content_info(node, content_hash, content_info)
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async def find_content(self, content_hash: str) -> List[PeerInfo]:
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"""Поиск нод с контентом"""
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key_hash = self.hash_key(content_hash)
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responsible_nodes = await self.find_responsible_nodes(key_hash)
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peers_with_content = []
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for node in responsible_nodes:
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content_info = await self.get_content_info(node, content_hash)
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if content_info:
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peers_with_content.extend(content_info.get("peers", []))
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return peers_with_content
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```
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### Smart Content Routing
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```python
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class ContentRouter:
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def __init__(self):
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self.peer_metrics = {}
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self.content_popularity = {}
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async def find_optimal_peers(self, content_hash: str,
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count: int = 3) -> List[PeerInfo]:
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"""Поиск оптимальных пиров для загрузки"""
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available_peers = await self.content_dht.find_content(content_hash)
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# Сортировка по метрикам производительности
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scored_peers = []
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for peer in available_peers:
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score = await self.calculate_peer_score(peer, content_hash)
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scored_peers.append((peer, score))
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# Возврат топ пиров
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scored_peers.sort(key=lambda x: x[1], reverse=True)
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return [peer for peer, score in scored_peers[:count]]
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async def calculate_peer_score(self, peer: PeerInfo,
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content_hash: str) -> float:
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"""Вычисление оценки пира"""
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metrics = self.peer_metrics.get(peer.node_id, {})
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# Факторы оценки
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latency_score = 1.0 / max(metrics.get("avg_latency", 1), 0.01)
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bandwidth_score = metrics.get("bandwidth", 1.0)
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reliability_score = metrics.get("uptime", 0.5)
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reputation_score = peer.reputation_score
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# Взвешенная оценка
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total_score = (
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latency_score * 0.3 +
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bandwidth_score * 0.3 +
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reliability_score * 0.2 +
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reputation_score * 0.2
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)
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return total_score
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```
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## Monitoring & Health System
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### Node Health Monitoring
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```python
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class NodeHealthMonitor:
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def __init__(self):
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self.health_metrics = {}
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self.alert_thresholds = {
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"cpu_usage": 80.0,
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"memory_usage": 85.0,
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"disk_usage": 90.0,
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"network_latency": 1000.0, # ms
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"peer_count": 3 # minimum
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}
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async def collect_health_metrics(self) -> dict:
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"""Сбор метрик здоровья ноды"""
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return {
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"cpu_usage": await self.get_cpu_usage(),
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"memory_usage": await self.get_memory_usage(),
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"disk_usage": await self.get_disk_usage(),
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"network_latency": await self.measure_network_latency(),
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"peer_count": len(await self.get_active_peers()),
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"sync_status": await self.get_sync_status(),
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"timestamp": datetime.utcnow().isoformat()
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}
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async def check_health_alerts(self, metrics: dict):
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"""Проверка критических состояний"""
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alerts = []
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for metric, value in metrics.items():
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threshold = self.alert_thresholds.get(metric)
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if threshold and value > threshold:
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alerts.append({
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"metric": metric,
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"value": value,
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"threshold": threshold,
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"severity": "critical" if value > threshold * 1.2 else "warning"
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})
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if alerts:
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await self.send_health_alerts(alerts)
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```
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### Performance Analytics
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```python
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class PerformanceAnalyzer:
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def __init__(self):
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self.metrics_storage = MetricsStorage()
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async def analyze_replication_performance(self) -> dict:
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"""Анализ производительности репликации"""
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recent_replications = await self.get_recent_replications(hours=24)
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analysis = {
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"total_replications": len(recent_replications),
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"success_rate": self.calculate_success_rate(recent_replications),
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"average_time": self.calculate_average_time(recent_replications),
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"throughput": self.calculate_throughput(recent_replications),
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"failed_replications": self.get_failed_replications(recent_replications)
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}
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return analysis
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async def generate_performance_report(self) -> dict:
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"""Генерация отчета о производительности"""
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return {
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"network_performance": await self.analyze_network_performance(),
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"replication_performance": await self.analyze_replication_performance(),
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"consensus_performance": await self.analyze_consensus_performance(),
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"content_distribution": await self.analyze_content_distribution(),
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"peer_performance": await self.analyze_peer_performance()
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}
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```
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## Security Architecture
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### Multi-Layer Security Model
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```
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┌─────────────────────────────────────────┐
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│ Application Security │ <- Existing auth & validation
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├─────────────────────────────────────────┤
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│ Network Security │ <- MY Network specific
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├─────────────────────────────────────────┤
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│ Transport Security │ <- TLS/mTLS
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├─────────────────────────────────────────┤
|
||
│ Content Security │ <- Encryption & integrity
|
||
└─────────────────────────────────────────┘
|
||
```
|
||
|
||
### Network Security Implementation
|
||
|
||
```python
|
||
class NetworkSecurity:
|
||
def __init__(self):
|
||
self.node_keypair = self.load_or_generate_keypair()
|
||
self.trusted_nodes = set()
|
||
self.blacklisted_nodes = set()
|
||
|
||
async def verify_peer_identity(self, peer_id: str,
|
||
signature: str, message: bytes) -> bool:
|
||
"""Проверка подлинности пира"""
|
||
public_key = await self.get_peer_public_key(peer_id)
|
||
if not public_key:
|
||
return False
|
||
|
||
return await self.verify_signature(public_key, signature, message)
|
||
|
||
async def encrypt_message(self, message: bytes,
|
||
recipient_public_key: bytes) -> bytes:
|
||
"""Шифрование сообщения для получателя"""
|
||
# Используем ECIES для асимметричного шифрования
|
||
encrypted = await self.ecies_encrypt(message, recipient_public_key)
|
||
return encrypted
|
||
|
||
async def validate_content_integrity(self, content_hash: str,
|
||
content_data: bytes) -> bool:
|
||
"""Проверка целостности контента"""
|
||
calculated_hash = hashlib.sha256(content_data).hexdigest()
|
||
return calculated_hash == content_hash
|
||
```
|
||
|
||
## Scalability Considerations
|
||
|
||
### Horizontal Scaling Strategies
|
||
|
||
1. **Sharding по Content Hash**
|
||
- Контент распределяется по нодам на основе хеша
|
||
- Consistent hashing для равномерного распределения
|
||
- Автоматическое перебалансирование при изменении топологии
|
||
|
||
2. **Hierarchical Network Structure**
|
||
- Bootstrap ноды как суперноды
|
||
- Региональные кластеры
|
||
- Edge ноды для локального кеширования
|
||
|
||
3. **Adaptive Replication**
|
||
- Динамическое изменение количества реплик
|
||
- Репликация популярного контента на больше нод
|
||
- Удаление неиспользуемого контента
|
||
|
||
### Resource Management
|
||
|
||
```python
|
||
class ResourceManager:
|
||
def __init__(self):
|
||
self.storage_limits = {}
|
||
self.bandwidth_limits = {}
|
||
self.connection_limits = {}
|
||
|
||
async def allocate_resources(self, operation_type: str,
|
||
resource_requirements: dict) -> bool:
|
||
"""Выделение ресурсов для операции"""
|
||
if not await self.check_available_resources(resource_requirements):
|
||
return False
|
||
|
||
await self.reserve_resources(operation_type, resource_requirements)
|
||
return True
|
||
|
||
async def optimize_resource_usage(self):
|
||
"""Оптимизация использования ресурсов"""
|
||
# Анализ текущего использования
|
||
usage_stats = await self.get_resource_usage_stats()
|
||
|
||
# Определение возможностей для оптимизации
|
||
optimizations = await self.identify_optimizations(usage_stats)
|
||
|
||
# Применение оптимизаций
|
||
for optimization in optimizations:
|
||
await self.apply_optimization(optimization)
|
||
```
|
||
|
||
## Disaster Recovery & Fault Tolerance
|
||
|
||
### Multi-Level Fault Tolerance
|
||
|
||
```python
|
||
class FaultToleranceManager:
|
||
async def handle_node_failure(self, failed_node_id: str):
|
||
"""Обработка отказа ноды"""
|
||
# 1. Обновление routing table
|
||
await self.remove_failed_node(failed_node_id)
|
||
|
||
# 2. Перенаправление трафика
|
||
await self.reroute_traffic_from_failed_node(failed_node_id)
|
||
|
||
# 3. Восстановление реплик
|
||
lost_content = await self.identify_lost_content(failed_node_id)
|
||
await self.restore_content_replicas(lost_content)
|
||
|
||
# 4. Уведомление сети об отказе
|
||
await self.broadcast_node_failure(failed_node_id)
|
||
|
||
async def restore_content_replicas(self, lost_content: List[str]):
|
||
"""Восстановление потерянных реплик контента"""
|
||
for content_hash in lost_content:
|
||
# Поиск существующих реплик
|
||
available_replicas = await self.find_content_replicas(content_hash)
|
||
|
||
if len(available_replicas) < self.min_replica_count:
|
||
# Создание дополнительных реплик
|
||
target_nodes = await self.select_replication_targets(content_hash)
|
||
await self.replicate_content(content_hash, target_nodes)
|
||
```
|
||
|
||
Эта архитектура обеспечивает надежную, масштабируемую и безопасную распределенную систему для репликации всех состояний контента с сохранением существующей функциональности системы. |