emily
2c3607f17c
DAVx5 (CalDAV/CardDAV) on greg's phone was intermittently failing every sync type (CONTACTS/EVENTS/TASKS/RefreshCollectionsWorker) against next.thehellings.com with: java.io.IOException: unexpected end of stream Caused by: java.io.EOFException: \n not found: limit=0 This is the classic OkHttp/HTTP client signature of the far end silently closing a pooled keep-alive connection: the client reuses a socket it still believes is open, gets zero bytes back while reading response headers, and throws exactly this exception. Root cause: HAProxy's 'next' backend proxies to nginx on 127.0.0.1:8080, and HAProxy defaults to end-to-end keep-alive (both client- and server-side) unless told otherwise. nginx's keepalive_timeout is 65s, so any HAProxy<->nginx connection idle past that gets closed by nginx without HAProxy's knowledge. A request that lands on that now-dead pooled connection right after gets nothing back - surfacing to the client as a bare socket EOF while reading headers. The frontend's existing 'option http-server-close'/'http-keep-alive' pair only governs the client-facing side of HAProxy and does nothing for the HAProxy->nginx leg. Fix: - backend next: add 'option http-server-close' so HAProxy opens a fresh connection to nginx per request instead of pooling/reusing one. The backend is localhost, so the extra TCP handshake cost is negligible, and this removes the whole class of stale-connection EOF errors. - defaults: add 'timeout http-keep-alive 30s' to bound how long an idle client-facing keep-alive connection is held open. Previously unset, it fell back to 'timeout client' (500s) - unnecessarily long given maxconn is only 80, and tightens client-side connection churn to be more predictable too. Diagnosed by pulling the nginx_access journal (enabled in #37/#38) for the failing sync window and cross-referencing nginx's services.nginx.appendHttpConfig / generated nginx.conf keepalive settings against HAProxy's request-level defaults. Could not run 'haproxy -c'/'nginx -t' locally (no toolchain in the agent sandbox) - recommend confirming via CI/garnix before merge, same as #38.