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LLM-Server/scripts/switch-model.sh
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2026-09-22 22:43:36 +02:00

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#!/usr/bin/env bash
# Swap GPU residency between llama-server (Qwen) and comfyui — they never
# run concurrently, VRAM doesn't fit both (see issue #38's map). Manual
# invocation only, no auto-switching.
#
# Bypasses lazytainer entirely and drives docker compose directly — its
# idle-stop can't be used for this. Root cause (see
# docs/research/lazytainer-omniroute-idle-stop.md, issue #40): lazytainer's
# packet-threshold detector is source-blind and can't tell OmniRoute's
# periodic health-check pings apart from real traffic on the same port, so
# it never reliably sleeps a service on its own. A scripted swap always
# knows which service should go up/down, so it doesn't need that heuristic.
#
# OmniRoute may show the just-stopped provider as errored/offline in its
# dashboard for up to CREDENTIAL_HEALTH_CHECK_INTERVAL (default 5 min) after
# a swap — cosmetic, not a functional problem (see the research doc above).
set -euo pipefail
cd "$(dirname "$0")/.."
usage() {
echo "Usage: $0 {qwen|comfyui}" >&2
echo " qwen - stop comfyui, start llama-server" >&2
echo " comfyui - stop llama-server, start comfyui" >&2
exit 1
}
[ $# -eq 1 ] || usage
case "$1" in
qwen)
from=comfyui
to=llama-server
;;
comfyui)
from=llama-server
to=comfyui
;;
*)
usage
;;
esac
echo "==> stopping $from"
docker compose stop "$from"
echo "==> starting $to"
docker compose up -d "$to"
echo "==> status"
docker compose ps