Re: [HTCondor-users] Error using condor_status

[Andreas Resch <andreas.resch@xxxxxxxxxxxxxxxx>]

Hi,

thanks for your reply. Indeed the firewall was blocking before. I opened 
up the firewall and now the nmap <central manager> gives me "9618/tcp 
open  condor". Also the "nc -z -v <central manager> 9618" command 
succeeds from a client as well as the central manager. However, the 
error message still remains. There are errors such as

ERROR: SECMAN:2007:Failed to end classad message.
Failed to start non-blocking update to <10.8.0.1:9618>.
condor_read() failed: recv() 5 bytes from collector 10.8.0.1 returned 
-1, timeout=20, errno=104 Connection reset by peer.

in the MasterLog. It still seems like there is sth. blocking in the 
communication, but the error message is not very clear to me.

best,
Andreas


Am 2020-06-19 15:55, schrieb Beyer, Christoph:
> Hi,
>
> this could be related to a firewall on your new ubuntu system, from
> the host where you execute condor_status: have you tried to use ping
> <central manager>, nmap <central manager> and telnet -p9618 <central
> manager>
>
> This might give you some hints what's wrong ...
>
> Best
> christoph
>
> --
> Christoph Beyer
> DESY Hamburg
> IT-Department
>
> Notkestr. 85
> Building 02b, Room 009
> 22607 Hamburg
>
> phone:+49-(0)40-8998-2317
> mail: christoph.beyer@xxxxxxx
>
> ----- UrsprÃngliche Mail -----
> Von: "Andreas Resch" <andreas.resch@xxxxxxxxxxxxxxxx>
> An: "htcondor-users" <htcondor-users@xxxxxxxxxxx>
> Gesendet: Freitag, 19. Juni 2020 13:14:29
> Betreff: [HTCondor-users] Error using condor_status
>
> Hi,
>
> after an OS upgrade from Ubuntu 14.04 to 18.04, the condor_status
> command gives me following error message:
> Error: communication error
> SECMAN:2007:Failed to end classad message.
>
>  From the log files I get the impression that there is sth. wrong with
> the network settings, which are as follows:
>
> BIND_ALL_INTERFACES = true
> NETWORK_INTERFACE = enp4s0f0  # this was eth0 in the old system
> CONDOR_HOST = 10.8.0.1
> PRIVATE_NETWORK_NAME = vpn
> PRIVATE_NETWORK_INTERFACE = tun0
>
> Any hints how to solve this issue?
> CondorVersion: 8.6.8
> OS: Ubuntu 18.04
>
> best,
> Andreas
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