mcp: don't persist failed streamable sessions #605
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If a stateful streamable session fails to initialize, it is unusable. Avoid allocating resources by closing the session immediately. Also: - Fix a bug where InitializeParams is not guarded with its mutex. - Fix a resource leak where sessions are persisted with session id "", even though they are unaddressable. - Add a relevant benchmark, and update tests. Fixes modelcontextprotocol#578
neild
approved these changes
Oct 27, 2025
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If a stateful streamable session fails to initialize, it is unusable. Avoid allocating resources by closing the session immediately.
Also:
Fixes #578