Re: 100% spinning CPU when uploading (maybe over ftps?)

Thanks, as soon as I have some debug info, I'll send it.


On Wed, Jan 28, 2015 at 4:42 PM, Alexander Lukyanov <[email protected]> wrote:
> The command "debug" turns on verbose messages in lftp.
>
>
> ср, 28 янв. 2015, 18:32, SanskritFritz <[email protected]>:
>
>> I would do it gladly. Is there a description about the process
>> somewhere? Currently I don't know how to provide debug output.
>>
>> On Wed, Jan 28, 2015 at 4:12 PM, Alexander Lukyanov <[email protected]>
>> wrote:
>> > Can you provide more details on the issue? For example, debug output
>> > from
>> > lftp sometimes helps to identify the problem.
>> >
>> > 2015-01-05 16:21 GMT+03:00 SanskritFritz <[email protected]>:
>> >>
>> >>
>> >>
>> >> On Tue, Apr 16, 2013 at 1:08 PM, Charlie Allom <[email protected]>
>> >> wrote:
>> >>>
>> >>> "solved".
>> >>>
>> >>> On Thu, Mar 28, 2013 at 03:09:32PM +0000, Charlie Allom
>> >>> <[email protected]> wrote:
>> >>> >
>> >>> > We see some of our batch lftp processes spinning and we're not sure
>> >>> > why/when. We don't yet know if it's FTPS only.
>> >>> >
>> >>>
>> >>> We tuned our tcp buffers to be less aggressive and this issue went
>> >>> away.
>> >>>
>> >>> These values are working for us:
>> >>>
>> >>> net.ipv4.tcp_rmem=4096 87380 62500000
>> >>> net.ipv4.tcp_wmem=4096 16384 62500000
>> >>
>> >>
>> >> I also experience 100% CPU load during upload. However, I'm using plain
>> >> ftp, this is my config file:
>> >>
>> >> open ftp://myuser:[email protected]
>> >> mirror --continue --reverse --verbose=3 --delete
>> >> /Backup/.obnam_repository_encfs /Backup/.obnam_repository_encfs
>> >> close
>> >> exit
>> >>
>> >> I don't understand the proposed workaround and I before applying it,
>> >> I'd
>> >> like to know what side effects should I expect if I tune my system that
>> >> way.
>> >> Can you please help me with this?
>> >>
>> >> I saw one bug report similar to this, but it is marked as solved:
>> >> https://github.com/lavv17/lftp/issues/39
>> >> Should I comment on that with my problem or open a new one?
>> >>
>> >> I'm using lftp 4.6.1.
>> >>
>> >> Thanks in advance for your help.
>> >>
>> >>
>> >>
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>> >>
>> >
>> >
>> >
>> > --
>> >    Alexander.
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