How do I find out what inotify watches have been registered?

Question

I have my inotify watch limit set to 1024 (I think the default is 128?). Despite that, yeoman, Guard and Dropbox constantly fail, and tell me to up my inotify limit. Before do

Answer 1

1. The default maximum number of inotify watches is 8192; it can be increased by writing to /proc/sys/fs/inotify/max_user_watches.
   You can use sysctl fs.inotify.max_user_watches to check current value.

2. Use tail -f to verify if your OS does exceed the inotify maximum watch limit.
   The internal implementation of tail -f command uses the inotify mechanism to monitor file changes.
   If you've run out of your inotify watches, you'll most likely to get this error:

   tail: inotify cannot be used, reverting to polling: Too many open files

3. To find out what inotify watches have been registered, you may refer to this, and this. I tried, but didn't get the ideal result. :-(

Reference:
https://askubuntu.com/questions/154255/how-can-i-tell-if-i-am-out-of-inotify-watches
https://unix.stackexchange.com/questions/15509/whos-consuming-my-inotify-resources
https://bbs.archlinux.org/viewtopic.php?pid=1340049