Well I have good and bad news to report. The good news is that we found
out why the active connection speed is slower. The bad news is that it
relates to the version of JRE you are running.
With 1.5.0_16 JRE:
1) Active connections are extremely slow
2) If you browse a remote site and keep changing directories over and
over (ls) it will actually stop responding after 20+ commands or so.
With JRE 1.6.0_07 everything seems to be working fine.
Hopefully this information is good enough for you to go on and debug the
problem. We were planning on deploying Apache FTPServer with our 1.5
JRE system but that will depend on what the outcome of this thread is.
Thanks,
Steve
David Latorre wrote:
Hello,
This is a very odd behaviour indeed. Any way, we should congratulate
ourselves that Apache FtpServer might perform as well as GlobalScape.
Although it seems that globalscape can do much more things than us.
How are you sending the files? It would be great if you could provide a test
case (e.g., using commons net ftp) so other people can check this behaviour
in their environment.
David
2008/11/7 Erik Morton <[EMAIL PROTECTED]>
I have observed similar results but I haven't tested it like this yet.
On Nov 6, 2008, at 5:30 PM, Steve Luebbe <[EMAIL PROTECTED]> wrote:
So, I've done a lot additional testing and here are the results.
We currently have a GlobalScape FTP Server in our network up and running.
I ran two transfers to it, each with 35 small files, one in active and one
in passive mode. Both transfers took approx 3 seconds to complete. Then I
took Apache FTPServer and installed it on the same machine and ran the same
tests to it. Passive took 3 seconds and active took around 156 seconds.
This test eliminates my theory that it's network or pc related.
Below is a small clip from the log file during the active transfer that
took a long time.
[ INFO] 2008-11-06 12:19:32,828 [erick] [192.168.1.213] RECEIVED: PORT
192,168,1,213,194,107
[ INFO] 2008-11-06 12:19:32,828 [erick] [192.168.1.213] SENT: 200 Command
PORT okay.
[ INFO] 2008-11-06 12:19:32,828 [erick] [192.168.1.213] RECEIVED: STOR
/PERFORMANCE/DB_CSV_FTP.XML
[ INFO] 2008-11-06 12:19:37,328 [erick] [192.168.1.213] File upload :
erick - /performance/db_csv_ftp.xml
[ INFO] 2008-11-06 12:19:37,328 [erick] [192.168.1.213] SENT: 150 File
status okay; about to open data connection.
[ INFO] 2008-11-06 12:19:37,328 [erick] [192.168.1.213] SENT: 226
Transfer complete.
As you can see there is a 5 second delay in there only during Active
connections. If you need any additional information please let me know.
Thanks in advance!!
Steve
Niklas Gustavsson wrote:
On Wed, Nov 5, 2008 at 11:09 PM, Steve Luebbe <[EMAIL PROTECTED]>
wrote:
Has anyone noticed a difference in performance between FTPing in Active
mode
vs. Passive mode?
I have two laptops on the same network:
1) Client - Windows Vista, firewall disabled, using FileZilla
2) Apache FTPServer - Windows XP, firewall disabled
When FileZilla is set to passive it is relatively fast. When I switch
it to
active it is 2 times to 3 times slower.
I've done quite a bit of research and playing around but I haven't been
able
to determine why. I'm hoping someone can shed some light on this for
me...
Do you see the same behavior with other clients? I can't see anything
obvious in our code that would cause this but I don't have any numbers
to back that we don't have a problem in this area.
/niklas
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