On Tue, January 4, 2011 12:59, Dan Langille wrote:
> 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.
I'm thinking it might be due to compression? Does that make sense?
// Tom
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