On 1/4/2011 5:00 AM, Tom Sommer wrote:
> On Tue, January 4, 2011 03:15, Dan Langille wrote:
>> On 1/3/2011 12:57 PM, Tom Sommer wrote:
>>
>>> I'm currently restoring 1.5 mill. files and it's taking forever.
>>>
>>>
>>> bacula-sd is using 100% CPU, disk IO is apparently low, so I assume
>>> it's a CPU issue.
>>>
>>> My machine has 16GB RAM and 2 CPUs:
>>>
>>>
>>> top - 18:54:53 up 75 days, 10:16, 3 users, load average: 1.00, 1.00,
>>> 1.00
>>> Tasks: 172 total, 1 running, 171 sleeping, 0 stopped, 0 zombie
>>> Cpu0 : 85.3%us, 1.0%sy, 0.0%ni, 12.7%id, 0.0%wa, 0.0%hi, 1.0%si,
>>> 0.0%st
>>> Cpu1 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si,
>>> 0.0%st
>>> Cpu2 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si,
>>> 0.0%st
>>> Cpu3 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si,
>>> 0.0%st
>>> Cpu4 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si,
>>> 0.0%st
>>> Cpu5 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si,
>>> 0.0%st
>>> Cpu6 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si,
>>> 0.0%st
>>> Cpu7 : 11.9%us, 0.0%sy, 0.0%ni, 88.1%id, 0.0%wa, 0.0%hi, 0.0%si,
>>> 0.0%st
>>> Mem: 16429812k total, 16345744k used, 84068k free, 1272k buffers
>>> Swap: 3124632k total, 184k used, 3124448k free, 5690688k
>>> cached
>>>
>>> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
>>> 4014 root 18 0 109m 19m 1264 S 100.3 0.1 135:07.23 bacula-sd
>>>
>>>
>>>
>>> As you can see the process takes 100% CPU usage, on 1 core. Is there
>>> any way to make Bacula use all cores? or any other way to speed up the
>>> restore - By the looks of it, it could take days to restore the data.
>>
>> What stage of the restore is occurring? is it building the file tree?
>> Has the restore started?
>
> It's runnning - sending the files to the server.
>
> 2 days in, it's completed 50GB of a total of ~220GB.
>
> Not really that impressive.
>
> My files are stored in blocks of 10GB.
Sounds like spooling or database index issues. I'm guessing you are
using MySQL and there are no spool options on your job / bacula-sd.
The database index issues have been discussed previously on this list.
You should be able to find them. Look at that first before thinking
about spooling.
--
Dan Langille - http://langille.org/
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