1. PATH blindness in cron: find_ollama_binary() used `which ollama` which
fails in cron's minimal PATH (/usr/bin:/bin). Added well-known install
locations (/opt/homebrew/bin, /usr/local/bin, /usr/bin, /snap/bin) as
fallback. ensure_ollama() now spawns using the discovered absolute path
instead of bare "ollama".
2. IPv6-first DNS resolution: is_ollama_reachable() only tried the first
address from to_socket_addrs(), which on macOS is ::1 (IPv6). Ollama
only listens on 127.0.0.1 (IPv4), so the check always failed.
Now iterates all resolved addresses — "Connection refused" on ::1 is
instant so there's no performance cost.
3. Excessive blocking on cold start: ensure_ollama() blocked for 30s
waiting for readiness, then reported failure even though ollama serve
was successfully spawned and still booting. Reduced wait to 5s (catches
hot restarts), and reports started=true on timeout since the ~90s
ingestion phase gives Ollama plenty of time to cold-start before the
embed stage needs it.
The ensure_ollama() function previously blocked for up to 10 seconds
waiting for Ollama to become reachable after spawning. Cold starts can
take 30-60s, so this often timed out and reported a misleading error.
Now waits only 5 seconds (enough for hot restarts), and if Ollama is
still starting, reports started=true with no error instead of treating
it as a failure. The embed stage runs 60-90s later (after ingestion),
by which time Ollama is ready. The handler log message is updated to
distinguish hot restarts from cold starts still in progress.
Add src/core/ollama_mgmt.rs module that handles Ollama detection, startup,
and health checking. This enables cron-based sync to automatically start
Ollama when it's installed but not running, ensuring embeddings are always
available during unattended sync runs.
Integration points:
- sync handler (--lock mode): calls ensure_ollama() before embedding phase
- cron status: displays Ollama health (installed/running/not-installed)
- robot JSON: includes OllamaStatusBrief in cron status response
The module handles local vs remote Ollama URLs, IPv6, process detection
via lsof, and graceful startup with configurable wait timeouts.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
