cfml

Having a strange issue with Commandbox Docker image. For some reason, it is caching .js, .txt, similar files. Switched to the lucee image and problem went away.

<@U714D0QLC> I assume you're in production profile

Enable the file system watcher to have the cache automatically invalidated on file change

The cache is disabled by default for non-production profiles

```server set web.fileCache.enable=false```

cool, tks, will try that. haven’t changed anything in … what, 3 years, so bit of a mystery why it’s suddenly happening.

Or if you like the cache and just want it to update automatically,
```server set runwar.args='--resource-manager-file-system-watcher=true'```

The cache is an undertow feature that was activated a few versions ago in CommandBox

It caches small files in memory for super fast serving

I had the file watcher enabled by default, but it caused issues when people had like 50k+ files in their web root

So now the file system watcher is off by default so the cache won't clear automatically any longer

<@U714D0QLC> What I typically do, so that the directory watcher doesn’t have to do anything, is set the following.  Disabling `sendfile` does effectively the same thing with big static assets. I run this in development and never have an issue with the files being cached

```BOX_SERVER_RUNWAR_ARGS=--sendfile-enable false --resource-manager-file-system-watcher false```
Or you can place the above in your `server.json`  Disabling `sendfile` means the file is always read from the disk and not the buffer/cache