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Update database.py

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This commit is contained in:
Egor
2025-11-09 09:25:59 +03:00
committed by GitHub
parent 3219062ce2
commit b1dcf2779e
1 changed files with 21 additions and 20 deletions
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41
app/database/database.py
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@@ -31,6 +31,7 @@ else:
"pool_timeout": 30,
"pool_recycle": 3600,
"pool_pre_ping": True,
# 🔥 Агрессивная очистка мертвых соединений
"pool_reset_on_return": "rollback",
}
@@ -57,8 +58,8 @@ engine = create_async_engine(
} if not settings.get_database_url().startswith("sqlite") else {},
execution_options={
"isolation_level": "READ COMMITTED",
"compiled_cache_size": 500,
"isolation_level": "READ COMMITTED", # Оптимальный для большинства случаев
"compiled_cache_size": 500, # Кеш скомпилированных запросов
}
)
@@ -70,7 +71,7 @@ AsyncSessionLocal = async_sessionmaker(
bind=engine,
class_=AsyncSession,
expire_on_commit=False,
autoflush=False,
autoflush=False, # 🔥 Критично для производительности
autocommit=False,
)
@@ -87,7 +88,7 @@ if settings.DEBUG:
@event.listens_for(Engine, "after_cursor_execute")
def after_cursor_execute(conn, cursor, statement, parameters, context, executemany):
total = time.time() - conn.info["query_start_time"].pop(-1)
if total > 0.1:
if total > 0.1: # Логируем медленные запросы > 100ms
logger.warning(f"🐌 Slow query ({total:.3f}s): {statement[:100]}...")
else:
logger.debug(f"⚡ Query executed in {total:.3f}s")
@@ -97,6 +98,7 @@ if settings.DEBUG:
# ============================================================================
class DatabaseManager:
"""Продвинутый менеджер БД с поддержкой реплик и кеширования"""
def __init__(self):
self.engine = engine
@@ -106,7 +108,7 @@ class DatabaseManager:
self.read_replica_engine = create_async_engine(
settings.DATABASE_READ_REPLICA_URL,
poolclass=poolclass,
pool_size=30,
pool_size=30, # Больше для read операций
max_overflow=50,
pool_pre_ping=True,
echo=False,
@@ -133,7 +135,6 @@ class DatabaseManager:
raise
async def health_check(self) -> dict:
"""Проверка здоровья БД и метрики пула"""
pool = self.engine.pool
try:
@@ -222,23 +223,23 @@ async def init_db():
await conn.run_sync(Base.metadata.create_all)
if not settings.get_database_url().startswith("sqlite"):
await conn.execute(text("""
CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_users_telegram_id
ON users(telegram_id);
CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_subscriptions_user_id
ON subscriptions(user_id);
CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_subscriptions_status
ON subscriptions(status) WHERE status = 'active';
CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_payments_created_at
ON payments(created_at DESC);
"""))
logger.info("📊 Создание индексов для оптимизации...")
indexes = [
"CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_users_telegram_id ON users(telegram_id)",
"CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_subscriptions_user_id ON subscriptions(user_id)",
"CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_subscriptions_status ON subscriptions(status) WHERE status = 'active'",
"CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_payments_created_at ON payments(created_at DESC)",
]
for index_sql in indexes:
try:
await conn.execute(text(index_sql))
except Exception as e:
logger.debug(f"Index creation skipped: {e}")
logger.info("✅ База данных успешно инициализирована")
# Выводим статистику
health = await db_manager.health_check()
logger.info(f"📊 Database health: {health}")