/usr/bin/baloo_file takes up too high CPU after Ubuntu upgrade

Today upgraded my Ubuntu system, after the upgrade obviously found the system cotton, top view, there is a/usr/bin/baloo_file always use a lot of CPU. Check it out because the new version of KDE introduced the/usr/bin/baloo_file cause.
The quick fix is to back up the two files Baloo_file and Baloo_file_extractor, and then re-establish a link to/bin/true, as follows:

$ sudo mv/usr/bin/baloo_file_extractor/usr/bin/baloo_file_extractor.bak
$ sudo ln-s/bin/true/usr/bin/baloo_ File_extractor
$ sudo mv/usr/bin/baloo_file/usr/bin/baloo_file.bak
$ sudo ln-s/bin/true/usr/bin/baloo_file

Restart the machine after the modification is complete, all OK.