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LocalAI/docs
LocalAI [bot] a891eedd08 fix(distributed): persist per-model load info so reconciler survives frontend restart (#9981)
* feat(distributed): add per-model ModelLoadInfo persistence

Adds a dedicated ModelLoadInfo table keyed by model name, decoupled from
the per-replica NodeModel rows. The reconciler can now recover model load
metadata after every NodeModel row has been removed (worker death,
eviction, MarkOffline reaping, frontend restart with stale heartbeats),
which is the read side of Bug-1 from the distributed mode bug hunt.

Registry exposes:
  - UpsertModelLoadInfo: ON CONFLICT (model_name) update; last-write-wins,
    matching the existing per-replica blob semantics under concurrent
    multi-frontend dispatch.
  - GetModelLoadInfo: read from the new table first; fall back to the
    legacy NodeModel-blob scan for rows written before any frontend in
    the cluster ran an UpsertModelLoadInfo (rolling-upgrade transition).

SetNodeModelLoadInfo (per-replica blob) is preserved for backward
compatibility and per-replica diagnostics; the dispatch-path hook in the
next commit calls both.

The new table joins the existing nodes AutoMigrate set under the same
schema-migration advisory lock.

Refs: Bug-1, docs/superpowers/specs/2026-05-24-distributed-mode-bug-hunt-findings.md

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-7[1m]

* fix(distributed): persist per-model load info on dispatch

scheduleAndLoad now writes the (backendType, ModelOptions blob) pair to
the new ModelLoadInfo table in addition to the existing per-replica
NodeModel.model_opts_blob field. The per-replica blob still works for
the hot path; the per-model row outlives every NodeModel row going away,
which is what unblocks the reconciler on the read side.

Both writes are best-effort with warn-level logging on failure: a write
miss here just means the reconciler may need a fresh inference request
to repopulate, which is the pre-fix behavior.

Concurrency: two frontends loading the same model at the same time both
fire UpsertModelLoadInfo; ON CONFLICT (model_name) makes the row
converge to whichever commits last. Matches the existing per-replica
blob semantics.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-7[1m]

* test(distributed): cover load info persistence and Bug-1 recovery

Adds Ginkgo specs that prove the persistence layer behaves correctly and
that the reconciler actually recovers from the frontend-restart scenario
that was failing in production:

registry_test.go:
  - per-model row survives RemoveAllNodeModelReplicas (the bug repro)
  - ON CONFLICT (model_name) updates backend type + blob, last-write-wins
  - legacy NodeModel-blob fallback still works (rolling-upgrade transition)
  - GetModelLoadInfo returns ErrRecordNotFound when both sources are empty
  - UpsertModelLoadInfo rejects empty model names

reconciler_test.go:
  - Bug-1 end-to-end: with min_replicas=2, no NodeModel rows, but a
    ModelLoadInfo row present, one reconcile tick fires two scheduler
    calls. Pre-fix this returned "no load info" and the scheduler never
    got called until a fresh inference request arrived.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-7[1m]

* docs(distributed): note restart-safe reconciler behavior

Adds a bullet to the Replica Reconciler section explaining that per-model
load metadata is persisted across frontend restarts via the new
model_load_infos PostgreSQL table, so a rolling upgrade no longer needs a
fresh inference request per model before the reconciler can replace dead
replicas.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-7[1m]

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-05-25 13:00:06 +02:00
..
2026-03-27 21:26:55 +00:00
2025-11-19 22:25:33 +01:00

LocalAI website

LocalAI documentation website

Requirement

In this project, the Docsy theme component is pulled in as a Hugo module, together with other module dependencies:

$ hugo mod graph
hugo: collected modules in 566 ms
hugo: collected modules in 578 ms
github.com/google/docsy-example github.com/google/docsy@v0.5.1-0.20221017155306-99eacb09ffb0
github.com/google/docsy-example github.com/google/docsy/dependencies@v0.5.1-0.20221014161617-be5da07ecff1
github.com/google/docsy/dependencies@v0.5.1-0.20221014161617-be5da07ecff1 github.com/twbs/bootstrap@v4.6.2+incompatible
github.com/google/docsy/dependencies@v0.5.1-0.20221014161617-be5da07ecff1 github.com/FortAwesome/Font-Awesome@v0.0.0-20220831210243-d3a7818c253f

If you want to do SCSS edits and want to publish these, you need to install PostCSS

npm install

Running the website locally

Building and running the site locally requires a recent extended version of Hugo. You can find out more about how to install Hugo for your environment in our Getting started guide.

Once you've made your working copy of the site repo, from the repo root folder, run:

hugo server

Running a container locally

You can run docsy-example inside a Docker container, the container runs with a volume bound to the docsy-example folder. This approach doesn't require you to install any dependencies other than Docker Desktop on Windows and Mac, and Docker Compose on Linux.

  1. Build the docker image

    docker-compose build
    
  2. Run the built image

    docker-compose up
    

    NOTE: You can run both commands at once with docker-compose up --build.

  3. Verify that the service is working.

    Open your web browser and type http://localhost:1313 in your navigation bar, This opens a local instance of the docsy-example homepage. You can now make changes to the docsy example and those changes will immediately show up in your browser after you save.

Cleanup

To stop Docker Compose, on your terminal window, press Ctrl + C.

To remove the produced images run:

docker-compose rm

For more information see the Docker Compose documentation.

Troubleshooting

As you run the website locally, you may run into the following error:

➜ hugo server

INFO 2021/01/21 21:07:55 Using config file: 
Building sites … INFO 2021/01/21 21:07:55 syncing static files to /
Built in 288 ms
Error: Error building site: TOCSS: failed to transform "scss/main.scss" (text/x-scss): resource "scss/scss/main.scss_9fadf33d895a46083cdd64396b57ef68" not found in file cache

This error occurs if you have not installed the extended version of Hugo. See this section of the user guide for instructions on how to install Hugo.

Or you may encounter the following error:

➜ hugo server

Error: failed to download modules: binary with name "go" not found

This error occurs if you have not installed the go programming language on your system. See this section of the user guide for instructions on how to install go.