MCP tools call fails after inactivity

[dvejsada]

What happened?

If the MCP server is not used for some time, the first call usually fails (saying server is not connected). However, on server side, there is no issue. The issue started after updating on latest build (from previous approx. 2-3 weeks ago), previously it worked fine. On repeated attempt to call the tool by LLM, it also works fine.

2025-04-22 08:20:04 info: [MCP][User: 678e50d972608abd394d1e35] User idle for too long. Disconnecting all connections...
2025-04-22 08:20:04 info: [MCP][User: 678e50d972608abd394d1e35] Disconnecting all servers...
2025-04-22 08:20:04 info: [MCP][User: 678e50d972608abd394d1e35][mcp-search] Disconnecting...
2025-04-22 08:20:04 info: [MCP][User: 67a320a29c1d0865d55b9511] User idle for too long. Disconnecting all connections...
2025-04-22 08:20:04 info: [MCP][User: 67a320a29c1d0865d55b9511] Disconnecting all servers...
2025-04-22 08:20:04 info: [MCP][User: 67a320a29c1d0865d55b9511][mcp-search] Disconnecting...
2025-04-22 08:20:04 info: [MCP][User: 67f4e1cf727068d823b2f5b5] User idle for too long. Disconnecting all connections...
2025-04-22 08:20:04 info: [MCP][User: 67f4e1cf727068d823b2f5b5] Disconnecting all servers...
2025-04-22 08:20:04 info: [MCP][User: 67f4e1cf727068d823b2f5b5][mcp-search] Disconnecting...
2025-04-22 08:20:04 info: [MCP][User: 675db895a84123b8f0943999] User idle for too long. Disconnecting all connections...
2025-04-22 08:20:04 info: [MCP][User: 675db895a84123b8f0943999] Disconnecting all servers...
2025-04-22 08:20:04 info: [MCP][User: 675db895a84123b8f0943999][mcp-office-docs] Disconnecting...
2025-04-22 08:20:04 error: [MCP][User: 67f4e1cf727068d823b2f5b5][mcp-search][Search_web] Tool call failed Not connected
2025-04-22 08:20:04 error: [MCP][User: undefined][mcp-search] Error calling "Search_web" MCP tool: Not connected
2025-04-22 08:20:04 info: [MCP][User: 678e50d972608abd394d1e35] All connections processed for disconnection.
2025-04-22 08:20:04 info: [MCP][User: 67a320a29c1d0865d55b9511] All connections processed for disconnection.
2025-04-22 08:20:04 info: [MCP][User: 67f4e1cf727068d823b2f5b5] All connections processed for disconnection.
2025-04-22 08:20:04 info: [MCP][User: 675db895a84123b8f0943999] All connections processed for disconnection.
2025-04-22 08:20:04 error: [api/server/controllers/agents/client.js #chatCompletion] Tool Error "Search_web_mcp_mcp-search" tool call failed: Not connected
2025-04-22 08:20:07 info: [MCP][User: 67f4e1cf727068d823b2f5b5][mcp-search] Establishing new connection
2025-04-22 08:20:07 info: [MCP][User: 67f4e1cf727068d823b2f5b5][mcp-search] Creating SSE transport: http://mcp-search:8960/sse
2025-04-22 08:20:07 info: [MCP][User: 67f4e1cf727068d823b2f5b5][mcp-search] Connection successfully established

Version Information

latest:dev

Steps to Reproduce

1. Have MCP tool connected
2. Have some period of inactivity
3. Ask question requiring tool call.

What browsers are you seeing the problem on?

No response

Relevant log output

Screenshots

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[danny-avila]

I’ll double-check it, it should establish the new connection before attempting the tool call.

[danny-avila]

Fixing the root issue here: #7040

[mattigruener]

For what it's worth, I've had the same issue today and am looking forward to getting the fix. Thanks for the quick turnaround.