Comment 9 for bug 761578

As the original reporter, I'd also suggest to inform the user about hitting this limit with a pointer to the workaround. I'm syncing about 40K+ files with Ubuntu One (10K+ directories) and if I forget to set this value on one of those machines, U1 of course "silently" does not sync those files that didn't get a watcher. (I say silently since it does report the issue in it's log file, but unless you are looking you will most certainly miss it).