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kevinveenbirkenbachandClaude Opus 5.5
455d06552a
CI run 40979252521, Baserow#1 (swarm, variant 1): the PASS 2 MCP probe got a 500 and the deploy refused the endpoint. In replica 3, worker 244 served MCP at 11:20:40 and then sat idle for 3824 s; the next request at 12:24:24 failed with "OperationalError: server closed the connection unexpectedly", and every later one, including the 13:09:10 probe, with "InterfaceError: connection already closed". Postgres stayed up throughout. The swarm service VIP (IPVS) drops TCP idle for 900 s. BASEROW_DATABASE_URL now carries libpq keepalives (keepalives_idle=60, interval 10, count 6, tcp_user_timeout 120000), the same set as the OpenProject swarm fix. test_database_keepalive.py parses the rendered URL with libpq's parse_dsn and fails on the old URL. Baserow 2.4.1 mounts its MCP Starlette app before Django's handler, so close_old_connections never runs there and a dropped connection stays dead until the worker restarts; that half is upstream. A server-side keepalive on svc-db-postgres that replaces the per-role options is tracked in #1298. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>