Yeah, seeing same issue. Unfortunately mds and mdworker get to consuiming a lot of CPU during these little games. Somehow I doubt I'm going to be seeing the battery life improvements that are supposed to have come with 10.8.2. I sure wish Apple actually *tested* this software before releasing it to the world... I'm going to send in a bug report with log excerpts and maybe a partial dump of my spotlight indexes.
I have got the same problem here. Mdworker and Mds take up between 40% and 60% of my CPU resources. Excluding all drives from Spotlight does not make a difference. Neither does reindexing.
According to some other threads it has some thing to do with sandboxing:
mdworker: Unable to talk to lsboxd
sandboxd (): mdworker(299) deny mach-lookup com.apple.ls.boxd
kernel: Sandbox: sandboxd(314) deny mach-lookup com.apple.coresymbolicationd
Lets hope Apple releases a fix soon.
I'm having the same issue since upgrading. Having the spinning beach ball of death up no matter what activity I'm doing, my iMac is essentially unusable right now.
2012-09-21 2:22:31.486 PM mdworker: Unable to talk to lsboxd
2012-09-21 2:22:31.542 PM sandboxd: () mdworker(4233) deny mach-lookup com.apple.ls.boxd
2012-09-21 2:22:31.000 PM kernel: Sandbox: sandboxd(4239) deny mach-lookup com.apple.coresymbolicationd
2012-09-21 2:26:45.153 PM mdworker: Unable to talk to lsboxd
2012-09-21 2:26:45.219 PM sandboxd: () mdworker(4247) deny mach-lookup com.apple.ls.boxd
2012-09-21 2:26:45.000 PM kernel: Sandbox: sandboxd(4252) deny mach-lookup com.apple.coresymbolicationd
2012-09-21 2:26:55.005 PM rpc.statd: Failed to contact rpc.statd at host 192.168.2.102
2012-09-21 2:28:51.869 PM mdworker: Unable to talk to lsboxd
2012-09-21 2:28:51.948 PM sandboxd: () mdworker(4256) deny mach-lookup com.apple.ls.boxd
2012-09-21 2:28:52.000 PM kernel: Sandbox: sandboxd(4262) deny mach-lookup com.apple.coresymbolicationd
2012-09-21 2:30:53.667 PM mdworker: Unable to talk to lsboxd
2012-09-21 2:30:53.000 PM kernel: Sandbox: sandboxd(4275) deny mach-lookup com.apple.coresymbolicationd
I've forced reindex of spotlight using the terminal command
sudo mdutil -E /
Beware: start this at night as it takes a lot of ressources and run for many hours.
Computer speed is normal again.
But still get a lot of these messages in Console:
2012-09-21 14:37:54,691 mdworker: Unable to talk to lsboxd
2012-09-21 14:37:54,816 sandboxd: () mdworker(5690) deny mach-lookup com.apple.ls.boxd
2012-09-21 14:37:55,000 kernel: Sandbox: sandboxd(5691) deny mach-lookup com.apple.coresymbolicationd
Thank you for the suggestion but it had no effect. Barely a third of my hd is used, cpu are a fraction of a percent, more than half my ram is free and yet the computer is not in a functional state.
I'm at the end of my rope with this. None of the suggestions that users are making are fixing my problem.
Where the $%^^ is Apple? It's not just me, a lot of other people are having the same problem.
Check if you have this file in your system
It was added in the original 10.8.0 but was causing problem. See this post for more information:
When I installed ML, I had spinning ball and erasing it solved my problem on my MBP mid 2011.
Different problem source, but same annoying effect.
Just to add another datapoint, I landed here after encountering the same problem.
System: mid-2011 Macbook Air, 1.8GHz i7, running 10.8.2, with a 480 GB OWC SSD.
Symptom: I noticed that Spotlight was frequently reindexing my SSD. I also experienced intermittent spikes in CPU usage and fan use, and, intermittent system freezes (no gray screen of death, but everything would just be frozen "in stasis" requiring a hard reset.
Sample messages from Console:
9/28/12 8:32:18.785 PM mds: Unable to talk to lsboxd
9/28/12 8:32:20.011 PM mdworker: Unable to talk to lsboxd
9/28/12 8:32:20.018 PM mdworker: Unable to talk to lsboxd
9/28/12 8:33:34.792 PM mdworker: Unable to talk to lsboxd
9/28/12 8:33:34.798 PM mdworker: Unable to talk to lsboxd
9/28/12 8:34:47.205 PM mdworker: Unable to talk to lsboxd
9/28/12 8:34:47.212 PM mdworker: Unable to talk to lsboxd
9/28/12 8:37:36.395 PM mdworker: Unable to talk to lsboxd
9/28/12 8:37:36.401 PM mdworker: Unable to talk to lsboxd
9/28/12 8:39:47.845 PM mdworker: Unable to talk to lsboxd
9/28/12 8:39:47.851 PM mdworker: Unable to talk to lsboxd