Re: [HTCondor-users] HTCondor Transferer issue for HAD Replication issue with Shared Port

[Oliver Freyermuth <freyermuth@xxxxxxxxxxxxxxxxxx>]

Am 18.04.2018 um 18:29 schrieb Jaime Frey:
>> On Apr 18, 2018, at 10:35 AM, Oliver Freyermuth via HTCondor-users <htcondor-users@xxxxxxxxxxx> wrote:
>>
>> Am 18.04.2018 um 17:29 schrieb Todd L Miller:
>>>> Can somebody tell me why the transferer tries to connect to an arbitrary port?
>>>
>>>     Either the transferer to which it's connecting isn't configured to use shared port, 
>>
>> Our configuration is enforced to be identical between both Central Managers by Puppet, so both have the configuration stanzas included in my last mail. 
>> So unless there is something that needs to be done in addition specific to the TRANSFERER, everything should be configured for shared port usage. 
>>
>>> or because the transferer was never updated to be able to use shared port.  At first glance, it looks like the transferer creates a new listen socket rather than use its existing (shared port) command socket.
>>
>> That would be pretty ugly - I can't believe anybody would want to run Central Managers, which need to be in somewhat public networks since all schedds connect to them, without a firewall... 
>> What can I do? 
> 
> 
> Starting with HTCondor 8.7.4, the transferer code in HAD works with shared port (and IPv6), and no longer binds its own TCP port.
> 
> https://htcondor-wiki.cs.wisc.edu/index.cgi/tktview?tn=6413

Dear Jaime,

that's good news, many thanks for digging out the ticket, and (from the look of the ticket) also for implementing it! :-) 
We'll then likely go with a workaround for the meantime (e.g. make the CMs completely accessible from their partner) until the next stable release with the fix arrives. 

Many thanks and all the best,
	Oliver


> 
> Thanks and regards,
> Jaime Frey
> UW-Madison HTCondor Project
> 
> 
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