Use Gnome? What is Tracker? Well, here is the official description:
Tracker is a search engine, search tool and metadata storage system.
It allows you to find the proverbial needle in your computer’s haystack as well as providing a one stop solution to the organisation, storage and categorisation of your data.
Source: Tracker Wiki
I would add that Tracker kills my system at boot. Maybe not kill, but brings it to a crawl. I have thought about disabling it, but sometimes I like the Gnome desktop search. My fix for the boot issue:
/etc/xdg/autostart littleturd autostart # ls -l tracker* -rw-r--r-- 1 root root 524 Dec 30 21:33 tracker-extract.desktop -rw-r--r-- 1 root root 532 Dec 30 21:43 tracker-miner-fs.desktop -rw-r--r-- 1 root root 597 Dec 30 21:44 tracker-store.desktop
Now change the following in each of the above files:
Of course, resetting things helped too.
/etc/xdg/autostart tracker-control -r :Kill all Tracker processes and remove all databases tracker-control -s :Starts miners (which indirectly starts tracker-store too)
Last, don’t be dumb like me who mounts his NAS in his home directory, know what directories tracker is set to scan!