I see that one of the users has a 100% cpu process named tracker-extract. I tried to terminate that based on the suggestion here, however, still I see that it is running. All users have such process but as you can see one of them consumes a lot of cpu.

# tracker daemon -t
Found 1 PID…
  Terminated process 2265 - 'tracker-server'
# ps aux | grep tracker-extract
jafarian 21478  0.0  0.0 728000 11664 ?        SNl  Oct29   0:00 /usr/libexec/tracker-extract
jafaria+ 23002 98.3  0.0 810900 18252 ?        RNl  Nov09 3746:02 /usr/libexec/tracker-extract
jafaria+ 31826  0.0  0.0 917128 21684 ?        SNl  Oct31   3:21 /usr/libexec/tracker-extract

Just killing the PID isn't a solution because it runs again. How to fix that?

  • Did you run the command in suggestion as root? – Romeo Ninov Nov 12 '18 at 7:28

You should install tracker-ui-tools via yumfor older versions. For newer version install tracker-preferences directly.

Then use tracker-preferences to switch on/off what you want/don't want.

For more information check this link and this link.

  • There is no such package. Is it fine to just install tracker-preferences? – mahmood Nov 12 '18 at 7:48
  • yes, actually tracker-ui-tools is for older versions. – Prvt_Yadav Nov 12 '18 at 7:50
  • OK I installed that and then logged in as that user and ran tracker-preferences and unchecked the options. Still I see that a process for that user consumes 100% cpu. – mahmood Nov 12 '18 at 8:10
  • 1
    Try to check after logout or restart. Is this one of the process which you check out?? – Prvt_Yadav Nov 12 '18 at 8:14

Centos 7

Please note:

Install tracker-preferences as root yum install tracker-preferences

Run tracker-preferences as normal user Set everything off (or leave whatever you think you need).


System is nice again after that :))

  • And then it came back again. Just when I posted my comment tracker-extract came back to live consuming 100% CPU. All I can think off is running tracker daemon -t after each boot. As a normal user. That seems to kill it. – Johan Jan 25 at 8:49
  • And then it came back again. – Johan Jan 25 at 8:49
  • I forgot to uncheck Enable for initial data population in tracker-preferences. It is ok now. Gone. I think. Because I saw tracker-extract pop up and die just now. k for me, I can always use tracker daemon -t if necessary. (For less experienced users something like this is enough to take the PC to a repair shop). – Johan Jan 25 at 9:11
  • And now tracker-extract is back in full force, 100% CPU. – Johan Jan 25 at 9:12
  • Last comment. I let the PC run for 2 days straight before and tracker-extract was still running. To me that looks abnormal. I have a lot of files but not that many. Also maybe an idea to use nice for tracker-extract so it does not stop you from using the system. Case closed. – Johan Jan 25 at 9:16

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