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But e.g. DPM limit is by default 1200 per each disknode, we observed 
problems with dCache sites with their too low default HTTP movers limit, 
so I'm basically happy if there is no limit on XRootD HTTP side (till 
somebody try to actively kill our services, but robust protection of our 
infrastructure would be completely different task).

Petr

On 1/10/22 12:54, Alessandra Forti wrote:
> Hi Wei,
>
> is there a reason why it is not possible to set the number of 
> connections? If not shouldn't this be implemented? Standard apache 
> servers have a MaxClients directive AFAIK.
>
> The problem with FTS limitation is that we have several independent 
> FTS in our community and putting a limit in all of them can be a problem.
>
> cheers
>
> alessandra
>
> On 07/01/2022 19:11, Yang, Wei wrote:
>> I don't think HTTP TPC respect that limit. One thing you can ask is 
>> for FTS service to put a limit on the number of concurrent HTTP TPC 
>> transfers. The FTS limits apply upon protocol://host but not port.
>>
>> regards,
>> -- 
>> Wei Yang  |  [log in to unmask]  |  650-926-3338(O)
>>
>> -----Original Message-----
>> From: <[log in to unmask]> on behalf of James William Walder 
>> <[log in to unmask]>
>> Date: Friday, January 7, 2022 at 5:39 AM
>> To: xrootd-l <[log in to unmask]>
>> Subject: Max connections via davs tpc  ?
>>
>>      Hi,
>>        In the ofs.tpc directive the xfr parameter should control the 
>> max number of TPC connections.
>>      Does tpc via http respect that parameter ? If not, is there a 
>> way to set a limit?
>>           Thanks in advance,
>>      James
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