add heartbeat interval for GET requests to MCP server #3
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
botkevin
approved these changes
Aug 13, 2025
Huw-man
approved these changes
Aug 13, 2025
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Add configurable SSE heartbeats for Streamable HTTP to prevent idle disconnects
Problem
The GET SSE “listen” connection stayed idle during long/quiet tool runs.
Infrastructure (e.g., Cloud Run/GFE) closed idle connections (~4 min), causing clients to log “Cleaning up crashed session …” and drop the session.
Logs show GET to the MCP endpoint lasting ~250s followed by client cleanup.
View attached logs for more context:
downloaded-logs-20250813-122539.csv