chore(server): Move library watcher to microservices (#7533)

* move watcher init to micro

* document watcher recovery

* chore: fix lint

* add try lock

* use global library watch lock

* fix: ensure lock stays on

* fix: mocks

* unit test for library watch lock

* move statement to correct test

* fix: correct return type of try lock

* fix: tests

* add library teardown

* add chokidar error handler

* make event strings an enum

* wait for event refactor

* refactor event type mocks

* expect correct error

* don't release lock in teardown

* chore: lint

* use enum

* fix mock

* fix lint

* fix watcher await

* remove await

* simplify typing

* remove async

* Revert "remove async"

This reverts commit 84ab5abac4.

* can now change watch settings at runtime

* fix lint

* only watch libraries if enabled

---------

Co-authored-by: mertalev <101130780+mertalev@users.noreply.github.com>
Co-authored-by: Alex Tran <alex.tran1502@gmail.com>
This commit is contained in:
Jonathan Jogenfors 2024-03-07 18:36:53 +01:00 committed by GitHub
parent 3278dcbcbe
commit 4cb0f37918
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14 changed files with 149 additions and 81 deletions

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@ -90,6 +90,16 @@ This feature - currently hidden in the config file - is considered experimental
If your photos are on a network drive, automatic file watching likely won't work. In that case, you will have to rely on a periodic library refresh to pull in your changes.
#### Troubleshooting
If you encounter an `ENOSPC` error, you need to increase your file watcher limit. In sysctl, this key is called `fs.inotify.max_user_watched` and has a default value of 8192. Increase this number to a suitable value greater than the number of files you will be watching. Note that Immich has to watch all files in your import paths including any ignored files.
```
ERROR [LibraryService] Library watcher for library c69faf55-f96d-4aa0-b83b-2d80cbc27d98 encountered error: Error: ENOSPC: System limit for number of file watchers reached, watch '/media/photo.jpg'
```
In rare cases, the library watcher can hang, preventing Immich from starting up. In this case, disable the library watcher in the configuration file. If the watcher is enabled from within Immich, the app must be started without the microservices. Disable the microservices in the docker compose file, start Immich, disable the library watcher in the admin settings, close Immich, re-enable the microservices, and then Immich can be started normally.
### Nightly job
There is an automatic job that's run once a day and refreshes all modified files in all libraries as well as cleans up any libraries stuck in deletion.