Maximum number of inotify watches

[Tiberiu C. Turbureanu]

Hello,

I want to monitor all the files on a server using one instance of 
inotify and about 20M watches recursively set on directories in '/' tree 
substructure. I'd want to be notified about all type of events defined 
by inotify (create, delete, access, modify etc.)

Assuming this monitor daemon running in user-space keeps up with the 
frequency of new events in the kernel queue (it reads them), is it 
possible to exceed the kernel memory limit because there are too many 
watches and events?

TIA,
Tibi
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