curl-loader-devel

vsftpd

[BuraphaLinux S. <bur...@gm...>]

Hello, I attached my conf file.  I want to do ftp load testing, and
all clients share one IP.
I am able to ftp and get files normally with an ftp client, curl,
wget, etc.  However, when
I try to use curl-loader-0.32 I get errors.  The log file says this:

0 2 (192.168.0.2) :<= WARNING: parsing error: wrong response code (FTP?) 0 .

for every connection.  The files I want to fetch are large, and the
ftp server is vsftpd and
it has a 512k/sec rate limit set.   It looks like curl-loader gets
confused and doesn't ever send
the commands to the server to start the download.  So I think either
the transfer does not start
or it takes so long curl-loader gives up.  I tried to read everything
but I probably missed
something obvious.  The server does fork enough daemons so they all do
get connected,
but beyond that nothing seems to happen.  The ftp server does send a
banner file - do I
have to turn that off?

How can I get this working?

Re: vsftpd

[Robert I. <cor...@gm...>]

Hi,

On 6/22/07, BuraphaLinux Server <bur...@gm...> wrote:
>
> Hello, I attached my conf file.  I want to do ftp load testing, and
> all clients share one IP.
> I am able to ftp and get files normally with an ftp client, curl,
> wget, etc.  However, when
> I try to use curl-loader-0.32 I get errors.  The log file says this:
>
> 0 2 (192.168.0.2) :<= WARNING: parsing error: wrong response code (FTP?) 0
> .
>
> for every connection.  The files I want to fetch are large, and the
> ftp server is vsftpd and
> it has a 512k/sec rate limit set.   It looks like curl-loader gets
> confused and doesn't ever send
> the commands to the server to start the download.  So I think either
> the transfer does not start
> or it takes so long curl-loader gives up.  I tried to read everything
> but I probably missed
> something obvious.  The server does fork enough daemons so they all do
> get connected,
> but beyond that nothing seems to happen.  The ftp server does send a
> banner file - do I
> have to turn that off?


Which curl-loader version you are working with?
Lets align our efforts and work with the latest version to download,
namely, curl-loader-0.32. OK? Thanks.

How can I get this working?
>
>
First of all, please, remove REQUEST_TYPE as it is applicable for HTTP only.
#REQUEST_TYPE=GET - better remove it

Second, lets start from a single url and a single client and a single cycle.
CLIENTS_NUM_MAX=1
CLIENTS_NUM_START=1
#CLIENTS_RAMPUP_INC=5


Please, run it with command line options -v and -u (which means verbose and
url)
and send me the log-file (ftp.log). Y may also wish to look at it.


Don't worry, we'll work together to rectify the issues, which could our bug,
libcurl bugs
or server/client side configuration issue.


-- 
Sincerely,
Robert Iakobashvili,
coroberti %x40 gmail %x2e com
...........................................................
http://curl-loader.sourceforge.net
A web testing and traffic generation tool.

Re: vsftpd

[Robert I. <cor...@gm...>]

Hi,

On 6/22/07, BuraphaLinux Server <bur...@gm...> wrote:
>
> Hello, I attached my conf file.  I want to do ftp load testing, and
> all clients share one IP.
> I am able to ftp and get files normally with an ftp client, curl,
> wget, etc.  However, when
> I try to use curl-loader-0.32 I get errors.  The log file says this:
>
> 0 2 (192.168.0.2) :<= WARNING: parsing error: wrong response code (FTP?) 0
> .
>
> for every connection.  The files I want to fetch are large, and the
> ftp server is vsftpd and
> it has a 512k/sec rate limit set.   It looks like curl-loader gets
> confused and doesn't ever send
> the commands to the server to start the download.  So I think either
> the transfer does not start
> or it takes so long curl-loader gives up.  I tried to read everything
> but I probably missed
> something obvious.  The server does fork enough daemons so they all do
> get connected,
> but beyond that nothing seems to happen.  The ftp server does send a
> banner file - do I
> have to turn that off?
>
> How can I get this working?



More options to try  with a  single client and a single url and -v -u option
are:
FTP_ACTIVE=1

By the way, have you ensured routing to the ip-address you are using for
loading 192.168.0.2?
Do you  have  ping working (use i-capital - I to issue ping from the address
you are using :
#ping -I 192.168.0.2 192.168.0.3?

-- 
Sincerely,
Robert Iakobashvili,
coroberti %x40 gmail %x2e com
...........................................................
http://curl-loader.sourceforge.net
A web testing and traffic generation tool.

Re: vsftpd

[Robert I. <cor...@gm...>]

Hi,

On 6/22/07, BuraphaLinux Server <bur...@gm...> wrote:
>
> Hello,
>
> I'm ashamed to say I found the problem was in the firewalls on the
> two machines.  I use linux 2.6.x with a modular kernel, and somehow the
> module for nf_conntrack_ftp keeps getting unloaded since the system
> says it is unused.  So I would force load that module on client and server
> and things work with normal ftp tools, but if I come back an hour later
> they don't because those modules get unloaded (/etc/cron.hourly/kmod
> does rmmod -as).  That's not a curl-loader problem, that's my own
> configuration problem.  I finally just added:
>
> # bizzare trick to prevent unloading of nf_conntrack_ftp
> remove nf_conntrack_ftp /bin/true
>
> to the end of my /etc/modprobe.conf on both machines, but I'm sure
> that is not the elegant solution.
>
> Now I got 10 simultaneous ftp with passive mode working well.
>

Great, thanks for updating us.
No shame, it happens.

Y may wish to subscribe to curl-loader-devel list for future updates and
discussions.
The list is not bulky.

-- 
Sincerely,
Robert Iakobashvili,
coroberti %x40 gmail %x2e com
...........................................................
http://curl-loader.sourceforge.net
A web testing and traffic generation tool.