refactor: 统一 HTTP 客户端超时配置

将 HTTPClientPool 中硬编码的超时参数改为使用可配置的环境变量，提高系统的灵活性和可维护性。

- 添加 HTTP_READ_TIMEOUT 环境变量配置（默认 300 秒）
- 统一所有 HTTP 客户端创建逻辑使用配置化超时
- 改进变量命名清晰性（config -> default_config 或 client_config）

frontend/src/api/endpoints/global-models.ts

@@ -4,7 +4,8 @@ import type {
   GlobalModelUpdate,
   GlobalModelResponse,
   GlobalModelWithStats,
-  GlobalModelListResponse
+  GlobalModelListResponse,
+  ModelCatalogProviderDetail,
 } from './types'
 
 /**
@@ -83,3 +84,16 @@ export async function batchAssignToProviders(
   )
   return response.data
 }
+
+/**
+ * 获取 GlobalModel 的所有关联提供商（包括非活跃的）
+ */
+export async function getGlobalModelProviders(globalModelId: string): Promise<{
+  providers: ModelCatalogProviderDetail[]
+  total: number
+}> {
+  const response = await client.get(
+    `/api/admin/models/global/${globalModelId}/providers`
+  )
+  return response.data
+}

frontend/src/api/global-models.ts

@@ -20,4 +20,5 @@ export {
   updateGlobalModel,
   deleteGlobalModel,
   batchAssignToProviders,
+  getGlobalModelProviders,
 } from './endpoints/global-models'

frontend/src/views/admin/ModelManagement.vue

@@ -737,6 +737,7 @@ import {
   updateGlobalModel,
   deleteGlobalModel,
   batchAssignToProviders,
+  getGlobalModelProviders,
   type GlobalModelResponse,
 } from '@/api/global-models'
 import { log } from '@/utils/logger'
@@ -1080,42 +1081,32 @@ async function selectModel(model: GlobalModelResponse) {
 async function loadModelProviders(_globalModelId: string) {
   loadingModelProviders.value = true
   try {
-    // 使用 ModelCatalog API 获取详细的关联提供商信息
+    // 使用新的 API 获取所有关联提供商（包括非活跃的）
-    const { getModelCatalog } = await import('@/api/endpoints')
+    const response = await getGlobalModelProviders(_globalModelId)
-    const catalogResponse = await getModelCatalog()
 
-    // 查找当前 GlobalModel 对应的 catalog item
+    // 转换为展示格式
-    const catalogItem = catalogResponse.models.find(
+    selectedModelProviders.value = response.providers.map(p => ({
-      m => m.global_model_name === selectedModel.value?.name
+      id: p.provider_id,
-    )
+      model_id: p.model_id,
-
+      display_name: p.provider_display_name || p.provider_name,
-    if (catalogItem) {
+      identifier: p.provider_name,
-      // 转换为展示格式，包含完整的模型实现信息
+      provider_type: 'API',
-      selectedModelProviders.value = catalogItem.providers.map(p => ({
+      target_model: p.target_model,
-        id: p.provider_id,
+      is_active: p.is_active,
-        model_id: p.model_id,
+      // 价格信息
-        display_name: p.provider_display_name || p.provider_name,
+      input_price_per_1m: p.input_price_per_1m,
-        identifier: p.provider_name,
+      output_price_per_1m: p.output_price_per_1m,
-        provider_type: 'API',
+      cache_creation_price_per_1m: p.cache_creation_price_per_1m,
-        target_model: p.target_model,
+      cache_read_price_per_1m: p.cache_read_price_per_1m,
-        is_active: p.is_active,
+      cache_1h_creation_price_per_1m: p.cache_1h_creation_price_per_1m,
-        // 价格信息
+      price_per_request: p.price_per_request,
-        input_price_per_1m: p.input_price_per_1m,
+      effective_tiered_pricing: p.effective_tiered_pricing,
-        output_price_per_1m: p.output_price_per_1m,
+      tier_count: p.tier_count,
-        cache_creation_price_per_1m: p.cache_creation_price_per_1m,
+      // 能力信息
-        cache_read_price_per_1m: p.cache_read_price_per_1m,
+      supports_vision: p.supports_vision,
-        cache_1h_creation_price_per_1m: p.cache_1h_creation_price_per_1m,
+      supports_function_calling: p.supports_function_calling,
-        price_per_request: p.price_per_request,
+      supports_streaming: p.supports_streaming
-        effective_tiered_pricing: p.effective_tiered_pricing,
+    }))
-        tier_count: p.tier_count,
-        // 能力信息
-        supports_vision: p.supports_vision,
-        supports_function_calling: p.supports_function_calling,
-        supports_streaming: p.supports_streaming
-      }))
-    } else {
-      selectedModelProviders.value = []
-    }
   } catch (err: any) {
     log.error('加载关联提供商失败:', err)
     showError(parseApiError(err, '加载关联提供商失败'), '错误')

src/api/admin/models/global_models.py

@@ -5,7 +5,7 @@ GlobalModel Admin API
 """
 
 from dataclasses import dataclass
-from typing import List, Optional
+from typing import Optional
 
 from fastapi import APIRouter, Depends, Query, Request
 from sqlalchemy.orm import Session
@@ -19,9 +19,11 @@ from src.models.pydantic_models import (
     BatchAssignToProvidersResponse,
     GlobalModelCreate,
     GlobalModelListResponse,
+    GlobalModelProvidersResponse,
     GlobalModelResponse,
     GlobalModelUpdate,
     GlobalModelWithStats,
+    ModelCatalogProviderDetail,
 )
 from src.services.model.global_model import GlobalModelService
 
@@ -108,6 +110,17 @@ async def batch_assign_to_providers(
     return await pipeline.run(adapter=adapter, http_request=request, db=db, mode=adapter.mode)
 
 
+@router.get("/{global_model_id}/providers", response_model=GlobalModelProvidersResponse)
+async def get_global_model_providers(
+    request: Request,
+    global_model_id: str,
+    db: Session = Depends(get_db),
+) -> GlobalModelProvidersResponse:
+    """获取 GlobalModel 的所有关联提供商（包括非活跃的）"""
+    adapter = AdminGetGlobalModelProvidersAdapter(global_model_id=global_model_id)
+    return await pipeline.run(adapter=adapter, http_request=request, db=db, mode=adapter.mode)
+
+
 # ========== Adapters ==========
 
 
@@ -275,3 +288,61 @@ class AdminBatchAssignToProvidersAdapter(AdminApiAdapter):
         logger.info(f"批量为 Provider 添加 GlobalModel: global_model_id={self.global_model_id} success={len(result['success'])} errors={len(result['errors'])}")
 
         return BatchAssignToProvidersResponse(**result)
+
+
+@dataclass
+class AdminGetGlobalModelProvidersAdapter(AdminApiAdapter):
+    """获取 GlobalModel 的所有关联提供商（包括非活跃的）"""
+
+    global_model_id: str
+
+    async def handle(self, context):  # type: ignore[override]
+        from sqlalchemy.orm import joinedload
+
+        from src.models.database import Model
+
+        global_model = GlobalModelService.get_global_model(context.db, self.global_model_id)
+
+        # 获取所有关联的 Model（包括非活跃的）
+        models = (
+            context.db.query(Model)
+            .options(joinedload(Model.provider), joinedload(Model.global_model))
+            .filter(Model.global_model_id == global_model.id)
+            .all()
+        )
+
+        provider_entries = []
+        for model in models:
+            provider = model.provider
+            if not provider:
+                continue
+
+            effective_tiered = model.get_effective_tiered_pricing()
+            tier_count = len(effective_tiered.get("tiers", [])) if effective_tiered else 1
+
+            provider_entries.append(
+                ModelCatalogProviderDetail(
+                    provider_id=provider.id,
+                    provider_name=provider.name,
+                    provider_display_name=provider.display_name,
+                    model_id=model.id,
+                    target_model=model.provider_model_name,
+                    input_price_per_1m=model.get_effective_input_price(),
+                    output_price_per_1m=model.get_effective_output_price(),
+                    cache_creation_price_per_1m=model.get_effective_cache_creation_price(),
+                    cache_read_price_per_1m=model.get_effective_cache_read_price(),
+                    cache_1h_creation_price_per_1m=model.get_effective_1h_cache_creation_price(),
+                    price_per_request=model.get_effective_price_per_request(),
+                    effective_tiered_pricing=effective_tiered,
+                    tier_count=tier_count,
+                    supports_vision=model.get_effective_supports_vision(),
+                    supports_function_calling=model.get_effective_supports_function_calling(),
+                    supports_streaming=model.get_effective_supports_streaming(),
+                    is_active=bool(model.is_active),
+                )
+            )
+
+        return GlobalModelProvidersResponse(
+            providers=provider_entries,
+            total=len(provider_entries),
+        )

src/clients/http_client.py

@@ -9,6 +9,7 @@ from urllib.parse import quote, urlparse
 
 import httpx
 
+from src.config import config
 from src.core.logger import logger
 
 
@@ -83,10 +84,10 @@ class HTTPClientPool:
                 http2=False,  # 暂时禁用HTTP/2以提高兼容性
                 verify=True,  # 启用SSL验证
                 timeout=httpx.Timeout(
-                    connect=10.0,  # 连接超时
+                    connect=config.http_connect_timeout,
-                    read=300.0,  # 读取超时(5分钟,适合流式响应)
+                    read=config.http_read_timeout,
-                    write=60.0,  # 写入超时(60秒,支持大请求体)
+                    write=config.http_write_timeout,
-                    pool=5.0,  # 连接池超时
+                    pool=config.http_pool_timeout,
                 ),
                 limits=httpx.Limits(
                     max_connections=100,  # 最大连接数
@@ -111,15 +112,20 @@ class HTTPClientPool:
         """
         if name not in cls._clients:
             # 合并默认配置和自定义配置
-            config = {
+            default_config = {
                 "http2": False,
                 "verify": True,
-                "timeout": httpx.Timeout(10.0, read=300.0),
+                "timeout": httpx.Timeout(
+                    connect=config.http_connect_timeout,
+                    read=config.http_read_timeout,
+                    write=config.http_write_timeout,
+                    pool=config.http_pool_timeout,
+                ),
                 "follow_redirects": True,
             }
-            config.update(kwargs)
+            default_config.update(kwargs)
 
-            cls._clients[name] = httpx.AsyncClient(**config)
+            cls._clients[name] = httpx.AsyncClient(**default_config)
             logger.debug(f"创建命名HTTP客户端: {name}")
 
         return cls._clients[name]
@@ -151,14 +157,19 @@ class HTTPClientPool:
             async with HTTPClientPool.get_temp_client() as client:
                 response = await client.get('https://example.com')
         """
-        config = {
+        default_config = {
             "http2": False,
             "verify": True,
-            "timeout": httpx.Timeout(10.0),
+            "timeout": httpx.Timeout(
+                connect=config.http_connect_timeout,
+                read=config.http_read_timeout,
+                write=config.http_write_timeout,
+                pool=config.http_pool_timeout,
+            ),
         }
-        config.update(kwargs)
+        default_config.update(kwargs)
 
-        client = httpx.AsyncClient(**config)
+        client = httpx.AsyncClient(**default_config)
         try:
             yield client
         finally:
@@ -182,25 +193,30 @@ class HTTPClientPool:
         Returns:
             配置好的 httpx.AsyncClient 实例
         """
-        config: Dict[str, Any] = {
+        client_config: Dict[str, Any] = {
             "http2": False,
             "verify": True,
             "follow_redirects": True,
         }
 
         if timeout:
-            config["timeout"] = timeout
+            client_config["timeout"] = timeout
         else:
-            config["timeout"] = httpx.Timeout(10.0, read=300.0)
+            client_config["timeout"] = httpx.Timeout(
+                connect=config.http_connect_timeout,
+                read=config.http_read_timeout,
+                write=config.http_write_timeout,
+                pool=config.http_pool_timeout,
+            )
 
         # 添加代理配置
         proxy_url = build_proxy_url(proxy_config) if proxy_config else None
         if proxy_url:
-            config["proxy"] = proxy_url
+            client_config["proxy"] = proxy_url
             logger.debug(f"创建带代理的HTTP客户端: {proxy_config.get('url', 'unknown')}")
 
-        config.update(kwargs)
+        client_config.update(kwargs)
-        return httpx.AsyncClient(**config)
+        return httpx.AsyncClient(**client_config)
 
 
 # 便捷访问函数

src/config/settings.py

@@ -148,6 +148,7 @@ class Config:
 
         # HTTP 请求超时配置（秒）
         self.http_connect_timeout = float(os.getenv("HTTP_CONNECT_TIMEOUT", "10.0"))
+        self.http_read_timeout = float(os.getenv("HTTP_READ_TIMEOUT", "300.0"))
         self.http_write_timeout = float(os.getenv("HTTP_WRITE_TIMEOUT", "60.0"))
         self.http_pool_timeout = float(os.getenv("HTTP_POOL_TIMEOUT", "10.0"))
 

src/database/database.py

@@ -360,6 +360,9 @@ def init_db():
 
     注意：数据库表结构由 Alembic 管理，部署时请运行 ./migrate.sh
     """
+    import sys
+    from sqlalchemy.exc import OperationalError
+
     logger.info("初始化数据库...")
 
     # 确保引擎已创建
@@ -382,6 +385,38 @@ def init_db():
         db.commit()
         logger.info("数据库初始化完成")
 
+    except OperationalError as e:
+        db.rollback()
+        # 提取数据库连接信息用于提示
+        db_url = config.database_url
+        # 隐藏密码，只显示 host:port/database
+        if "@" in db_url:
+            db_info = db_url.split("@")[-1]
+        else:
+            db_info = db_url
+
+        import os
+
+        # 直接打印到 stderr，确保消息显示
+        print("", file=sys.stderr)
+        print("=" * 60, file=sys.stderr)
+        print("数据库连接失败", file=sys.stderr)
+        print("=" * 60, file=sys.stderr)
+        print("", file=sys.stderr)
+        print(f"无法连接到数据库: {db_info}", file=sys.stderr)
+        print("", file=sys.stderr)
+        print("请检查以下事项:", file=sys.stderr)
+        print("  1. PostgreSQL 服务是否正在运行", file=sys.stderr)
+        print("  2. 数据库连接配置是否正确 (DATABASE_URL)", file=sys.stderr)
+        print("  3. 数据库用户名和密码是否正确", file=sys.stderr)
+        print("", file=sys.stderr)
+        print("如果使用 Docker，请先运行:", file=sys.stderr)
+        print("  docker-compose up -d postgres redis", file=sys.stderr)
+        print("", file=sys.stderr)
+        print("=" * 60, file=sys.stderr)
+        # 使用 os._exit 直接退出，避免 uvicorn 捕获并打印堆栈
+        os._exit(1)
+
     except Exception as e:
         logger.error(f"数据库初始化失败: {e}")
         db.rollback()

src/models/pydantic_models.py

@@ -274,6 +274,13 @@ class GlobalModelListResponse(BaseModel):
     total: int
 
 
+class GlobalModelProvidersResponse(BaseModel):
+    """GlobalModel 关联提供商列表响应"""
+
+    providers: List[ModelCatalogProviderDetail]
+    total: int
+
+
 class BatchAssignToProvidersRequest(BaseModel):
     """批量为 Provider 添加 GlobalModel 实现"""