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🔄 refactor: MCP Registry System with Distributed Caching (#10191)
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* refactor: Restructure MCP registry system with caching

- Split MCPServersRegistry into modular components:
  - MCPServerInspector: handles server inspection and health checks
  - MCPServersInitializer: manages server initialization logic
  - MCPServersRegistry: simplified registry coordination
- Add distributed caching layer:
  - ServerConfigsCacheRedis: Redis-backed configuration cache
  - ServerConfigsCacheInMemory: in-memory fallback cache
  - RegistryStatusCache: distributed leader election state
- Add promise utilities (withTimeout) replacing Promise.race patterns
- Add comprehensive cache integration tests for all cache implementations
- Remove unused MCPManager.getAllToolFunctions method

* fix: Update OAuth flow to include user-specific headers

* chore: Update Jest configuration to ignore additional test files

- Added patterns to ignore files ending with .helper.ts and .helper.d.ts in testPathIgnorePatterns for cleaner test runs.

* fix: oauth headers in callback

* chore: Update Jest testPathIgnorePatterns to exclude helper files

- Modified testPathIgnorePatterns in package.json to ignore files ending with .helper.ts and .helper.d.ts for cleaner test execution.

* ci: update test mocks

---------

Co-authored-by: Danny Avila <danny@librechat.ai>
This commit is contained in:
Theo N. Truong 2025-10-31 13:00:21 -06:00 • committed by GitHub
parent 961f87cfda
commit ce7e6edad8
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45 changed files with 3116 additions and 1150 deletions
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12
packages/api/src/mcp/MCPConnectionFactory.ts
View file

@ -9,6 +9,7 @@ import { MCPTokenStorage, MCPOAuthHandler } from '~/mcp/oauth';
import { sanitizeUrlForLogging } from './utils';
import { MCPConnection } from './connection';
import { processMCPEnv } from '~/utils';
import { withTimeout } from '~/utils/promise';
/**
* Factory for creating MCP connections with optional OAuth authentication.
@ -231,14 +232,11 @@ export class MCPConnectionFactory {
/** Attempts to establish connection with timeout handling */
protected async attemptToConnect(connection: MCPConnection): Promise<void> {
const connectTimeout = this.connectionTimeout ?? this.serverConfig.initTimeout ?? 30000;
const connectionTimeout = new Promise<void>((_, reject) =>
setTimeout(
() => reject(new Error(`Connection timeout after ${connectTimeout}ms`)),
connectTimeout,
),
await withTimeout(
this.connectTo(connection),
connectTimeout,
`Connection timeout after ${connectTimeout}ms`,
);
const connectionAttempt = this.connectTo(connection);
await Promise.race([connectionAttempt, connectionTimeout]);
if (await connection.isConnected()) return;
logger.error(`${this.logPrefix} Failed to establish connection.`);