Re: Weird behavior of FTP sampler

[Cyril SANTUNE <cy...@gmail.com>]

This problem also occur in jmeter 2.9.
Someone else see this behavior ?



On Thu, Dec 13, 2012 at 11:13 AM, Cyril SANTUNE <cy...@gmail.com>wrote:

> Hi,
>
> I make a tcpdump during a test with one FTP sampler (1 thread and 1 loop).
>
> 09:54:58.655300 IP 10.68.32.1.45899 > 10.68.40.1.21: Flags [S], seq
> 1358911309, win 5840, options [mss 1460,sackOK,TS val 162021637 ecr
> 0,nop,wscale 6], length 0
> 09:54:58.655654 IP 10.68.40.1.21 > 10.68.32.1.45899: Flags [S.], seq
> 1742802426, ack 1358911310, win 14480, options [mss 1460,sackOK,TS val
> 601777784 ecr 162021637,nop,wscale 5], length 0
> 09:54:58.967226 IP 10.68.32.1.57509 > 10.68.40.1.56079: Flags [S], seq
> 1364362997, win 5840, options [mss
> 1460,sackOK,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,wscale 6],
> length 0
> 09:54:58.967413 IP 10.68.40.1.56079 > 10.68.32.1.57509: Flags [S.],
> seq 4056587283, ack 1364362998, win 14600, options [mss
> 1460,nop,nop,sackOK,nop,wscale 5], length 0
> 09:54:59.596652 IP 10.68.40.1.56079 > 10.68.32.1.57509: Flags [FP.],
> seq 1048281:1048577, ack 1, win 457, length 296
> 09:55:29.574459 IP 10.68.40.1.21 > 10.68.32.1.45899: Flags [F.], seq
> 377, ack 64, win 453, options [nop,nop,TS val 601808698 ecr
> 162022636], length 0
> 09:55:29.625589 IP 10.68.32.1.45899 > 10.68.40.1.21: Flags [F.], seq
> 64, ack 378, win 92, options [nop,nop,TS val 162052602 ecr 601808698],
> length 0
> 09:55:29.625634 IP 10.68.32.1.57509 > 10.68.40.1.56079: Flags [F.],
> seq 1, ack 1048578, win 9536, length 0
>
>
> After the ''FIN'' of the data session send by the server, the client
> (jmeter sampler) doesn't answer with ''FIN-ACK''. So, after 30 sec the
> FTP server close the FTP control session by timeout.
>
> There is bug here ? or some sort of keep-alive for FTP session can
> explain this behavior ?
>
>
> Thanks
>