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The ubuntuone daemon is eating 100% of my CPU. I contacted the ubuntuone support but while they are looking for a solution, I'd like to kill it so it doesn't disturb my work.

I can't kill -9 it, as it will respawn imidiatly under a new PID.

I did removed it from my start up app settings, but it's still running at start up.

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up vote 3 down vote accepted

Try killing the daemon with the following:

sudo killall -9 ubuntuone-syncdaemon

To start it again try

python /usr/lib/ubuntuone-client/ubuntuone-syncdaemon &
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Sweet, it works. But what does it does that kill -9 doesn't? – e-satis May 5 '11 at 22:47
'kill' stops one process. 'killall' stops all named processes - i.e. in this case, the daemon and any spawned child processes with the same name. – fossfreedom May 6 '11 at 4:38

You can open the Ubuntu One Control Panel and disable file synchronization completely from the “Services” tab:

Ubuntu One Control Panel's services' tab

If you're using an earlier version of Ubuntu you have the same functionality exposed in Ubuntu One Preferences:

Ubuntu One Preferences' Services tab

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+1. Kept the other one accepted because the question was about "to kill" the daemon that I was enable to kill. But your answer is cleaner. – e-satis May 6 '11 at 7:09

If you don't use Ubuntu One (Canonical's cloud service), you can just get rid of the entire suite by typing the following into the Terminal:

sudo apt-get purge ubuntuone-client
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If you don't need ubuntuone you can uninstall the ubuntuone-syncdaemon package.

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I do want ubuntuone to stay. I'm waiting for the support to find the solution so I can use it again. I don't want to uninstall it, just disable it in the meantime. This way, I can run my sync by night when I'm not using the computer. – e-satis May 5 '11 at 22:07

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