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List:       pureftpd-list
Subject:    Re: [pure-ftpd] Fwd: Possible bug in Pure-FTPd
From:       Jason Dickerson <jason.dickerson () gmail ! com>
Date:       2009-04-13 21:06:12
Message-ID: 906820b60904131406q1878a7dbj17f9df643b1341d7 () mail ! gmail ! com
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Another update.  I have recompiled pure-ftpd 1.0.22 with no source
modifications of any kind.  Interestingly it is a little faster on gets.
3MB/s rather than 1MB/s. It seems to me there is an issue with the download
code, but I would like some confirmation from anyone else.

Thanks,

Jason Dickerson

On Mon, Apr 13, 2009 at 12:32 PM, Jason Dickerson <jason.dickerson@gmail.com
> wrote:

> Hey Frank,
>
> I haven't been getting a lot of traffic on the list, and I am not seeing my
> messages going to the list.  I am thinking that is by design.  In any rate,
> I wanted to make sure you saw this.  Just in case there was a problem with
> the list.
>
> Any info you can give me would be extremely appreciated.  Even if that
> response is that no one can reproduce the issue.  I am needing to update my
> managers on the status of this project I am working on.
>
> Thanks,
>
> Jason Dickerson
>
>
>
> ---------- Forwarded message ----------
> From: Jason Dickerson <jason.dickerson@gmail.com>
> Date: Mon, Apr 13, 2009 at 12:27 PM
> Subject: Re: [pure-ftpd] Fwd: Possible bug in Pure-FTPd
> To: list@pureftpd.org
>
>
> Just an update.  I have reviewed all available Documentation and the FAQ
> many times.  I have validated that there is nothing blocking ICMP either on
> or between the server and client computers.  Also, as far as I can tell,
> there is not a Windows Scaling issue, as the puts work perfectly, and the
> gets do not.  I may be missing something here, so if anyone has any ideas, I
> would really appreciate the help.
>
> This is for a rebuild of my company's main FTP System, so I need to
> determine if this can be fixed pretty soon.  Currently, I have a test
> environment, so I am willing to try just about anything.
>
> Thanks,
>
> Jason Dickerson
>
>
> On Fri, Apr 10, 2009 at 11:16 AM, Jason Dickerson <
> jason.dickerson@gmail.com> wrote:
>
>> I have some new data on this issue.
>>
>> Client
>> Net::FTP
>> RHEL 5.3
>> 6 1GB NIC LACP with "mode=802.3ad miimon=100 xmit_hash_policy=layer2+3"
>> Dell PowerEdge 2850 with RAID 5
>>
>> Server
>> pure-ftpd 1.0.22
>> OpenBSD 4.3
>> Secondary NIC with static route to isolate traffic from Client to this NIC
>> Dell PowerEdge 1850 with no RAID
>>
>> Test file is 20GB
>>
>> When I download the 20GB file, Speed is around 2MB/s.  CPU on Server goes
>> up to 106%
>>
>> When I upload the 20GB file, Speed is around 54 MB/s.  CPU on Server goes
>> to 2%.
>>
>> If there is anything I can do to gather more useful data, please let me
>> know.
>>
>> Thanks,
>>
>> Jason Dickerson
>>
>>
>> On Tue, Apr 7, 2009 at 6:25 PM, Jason Dickerson <
>> jason.dickerson@gmail.com> wrote:
>>
>>> Hey Frank,
>>>           Thanks for the reply!  I was running pure-ftpd 1.0.21 on
>>> OpenBSD 4.3 on my test server (Dell PE 1850, no RAID).  However, I
>>> downloaded version 1.0.22 today, modified the source to allow <space> as an
>>> alnum character (per my requirements), tweaked the OpenBSD ports makefile
>>> and distinfo files, and installed.  I have had a transfer running for 1 hour
>>> 47 minutes.
>>>
>>> Unfortunately, with 1 file being downloaded and with no bandwidth
>>> throttling, pureftpd is using 106% CPU.
>>>
>>> I do need files to transfer longer than 1 hour on my production
>>> environment, but I was wondering how close the 1.0.22 code is to release?
>>> Also, the CPU usage is a little troubling.
>>>
>>> Needless to say, it took some effort to get this on OpenBSD.  Big props,
>>> by the way, to Brad Smith for maintaining the ports tree stuff for OpenBSD.
>>> I only modified the version number in the makefile file and created a new
>>> distinfo file to match my modified source, so it definitely is not as good
>>> as what Brad would have done.
>>>
>>> If you have new source for me to try, I am perfectly willing.  It will
>>> just take me about 30 minutes or so to get it on the server.  I can even run
>>> some debug code you have available, if it would help.
>>>
>>> Thanks,
>>>
>>> Jason Dickerson
>>>
>>>
>>>
>>>
>>> On Mon, Apr 6, 2009 at 4:06 PM, Frank Denis <j@pureftpd.org> wrote:
>>>
>>>> Le Mon, Apr 06, 2009 at 02:58:45PM -0500, Jason Dickerson ecrivait :
>>>> > I was wondering if anyone else had run into this issue?
>>>>
>>>>   Hello Jason,
>>>>
>>>>  What version are you running?
>>>>
>>>>  Can you reproduce this with version 1.0.22?
>>>>
>>>>  Best regards,
>>>>
>>>>       -Frank.
>>>>
>>>
>>>
>>
>
>


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