[ale] Duplicity very slow

Edward Holcroft eholcroft at mkainc.com
Tue Apr 21 19:58:23 EDT 2015


Tried without encryption and without logging. Still pig slow.

ed

On Tue, Apr 21, 2015 at 1:21 PM, Edward Holcroft <eholcroft at mkainc.com>
wrote:

> I'm trying without encryption. It still seems the same, not constant hard
> drive i/o going on. Will let it run for a while and see what happens.
>
> ed
>
> On Tue, Apr 21, 2015 at 12:06 PM, James Sumners <james.sumners at gmail.com>
> wrote:
>
>> What happens if you disable encryption in the backup?
>>
>> On Tue, Apr 21, 2015 at 11:35 AM, Edward Holcroft <eholcroft at mkainc.com>
>> wrote:
>>
>>> I am trying out Duplicity for backup to local USB. I used rsync before,
>>> but now we need to encrypt our backups.
>>>
>>> The problem I am finding is that it's terribly slow. In the last 16
>>> hours it's only backed up about 500GB. When I was using rsync, an initial
>>> full backup would take a bout 10 hours.
>>>
>>> Source is a RAID 5 partition with ext4 on CentOS 7 and destination is a
>>> SATA drive in a docking station connected with USB3, formatted as NTFS. It
>>> does not have to be NTFS, that's just a hangover from when this was a
>>> windows server.
>>>
>>> I can actually see visually from the I/O activity LED on the USB drive
>>> that things are very slow, it blinks for a few seconds and then stops for
>>> several seconds. When I was using rsync, that LED would flicker all the
>>> time that the sync was taking place.
>>>
>>> I thought maybe clamav was the casue of teh issue since it was hogging
>>> the CPU, but stopping that has made no difference.
>>>
>>> Is this normal for Duplicity?
>>>
>>> cheers
>>> ed
>>>
>>> --
>>> Edward Holcroft | Madsen Kneppers & Associates Inc.
>>> 11695 Johns Creek Parkway, Suite 250 | Johns Creek, GA 30097
>>> O (770) 446-9606 | M (770) 630-0949
>>>
>>> MADSEN, KNEPPERS & ASSOCIATES USA, MKA Canada Inc.
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>>>
>>
>>
>> --
>> James Sumners
>> http://james.sumners.info/ (technical profile)
>> http://jrfom.com/ (personal site)
>> http://haplo.bandcamp.com/ (band page)
>>
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>>
>
>
> --
> Edward Holcroft | Madsen Kneppers & Associates Inc.
> 11695 Johns Creek Parkway, Suite 250 | Johns Creek, GA 30097
> O (770) 446-9606 | M (770) 630-0949
>



-- 
Edward Holcroft | Madsen Kneppers & Associates Inc.
11695 Johns Creek Parkway, Suite 250 | Johns Creek, GA 30097
O (770) 446-9606 | M (770) 630-0949

-- 
MADSEN, KNEPPERS & ASSOCIATES USA, MKA Canada Inc. WARNING/CONFIDENTIALITY 
NOTICE: This message may be confidential and/or privileged. If you are not 
the intended recipient, please notify the sender immediately then delete it 
- you should not copy or use it for any purpose or disclose its content to 
any other person. Internet communications are not secure. You should scan 
this message and any attachments for viruses. Any unauthorized use or 
interception of this e-mail is illegal.
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