Skip to content

fix(mcp): use long body timeout for Streamable HTTP SSE GET stream #11874

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
JumpLink wants to merge 1 commit into
base: main
Choose a base branch
from
+3 −1
Open

fix(mcp): use long body timeout for Streamable HTTP SSE GET stream #11874

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 3 additions & 1 deletion packages/api/src/mcp/connection.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -71,6 +71,8 @@ const FIVE_MINUTES = 5 * 60 * 1000;
const DEFAULT_TIMEOUT = 60000;
/** SSE connections through proxies may need longer initial handshake time */
const SSE_CONNECT_TIMEOUT = 120000;
/** Streamable HTTP: GET SSE stream is long-lived; same fetch is used for GET and POST. Use a very long bodyTimeout so the GET stream is not aborted after initTimeout (e.g. 120s). */
const STREAMABLE_HTTP_SSE_BODY_TIMEOUT_MS = 24 * 60 * 60 * 1000; // 24h

/**
* Headers for SSE connections.
Expand Down Expand Up @@ -488,7 +490,7 @@ export class MCPConnection extends EventEmitter {
},
fetch: this.createFetchFunction(
this.getRequestHeaders.bind(this),
this.timeout,
STREAMABLE_HTTP_SSE_BODY_TIMEOUT_MS,
) as unknown as FetchLike,
});

Expand Down