Merge pull request #15795 from SimonBrandner/fix-15750

Add inotify instance limit info to README
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J. Ryan Stinnett 2 years ago committed by GitHub
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      README.md

@ -275,22 +275,29 @@ modifying it. See the [configuration docs](docs/config.md) for details.
Open http://127.0.0.1:8080/ in your browser to see your newly built Element.
**Note**: The build script uses inotify by default on Linux to monitor directories
for changes. If the inotify watch limit is too low your build will silently fail.
To avoid this issue, we recommend a limit of at least 128M.
for changes. If the inotify limits are too low your build will fail silently or with
`Error: EMFILE: too many open files`. To avoid these issues, we recommend a watch limit
of at least `128M` and instance limit around `512`.
To set a new inotify watch limit, execute:
You may be interested in issues [#15750](https://github.com/vector-im/element-web/issues/15750) and
[#15774](https://github.com/vector-im/element-web/issues/15774) for further details.
To set a new inotify watch and instance limit, execute:
```
$ sudo sysctl fs.inotify.max_user_watches=131072
$ sudo sysctl -p
sudo sysctl fs.inotify.max_user_watches=131072
sudo sysctl fs.inotify.max_user_instances=512
sudo sysctl -p
```
If you wish, you can make this new limit permanent, by executing:
If you wish, you can make the new limits permanent, by executing:
```
$ echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf
$ sudo sysctl -p
echo fs.inotify.max_user_watches=131072 | sudo tee -a /etc/sysctl.conf
echo fs.inotify.max_user_instances=512 | sudo tee -a /etc/sysctl.conf
sudo sysctl -p
```
___
When you make changes to `matrix-react-sdk` or `matrix-js-sdk` they should be

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