Message boards :
ATLAS application :
WUs fail after requests to ccsqfatlasli01.in2p3.fr
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Send message Joined: 15 Jun 08 Posts: 2386 Credit: 222,898,697 RAC: 138,219 |
@David Cameron ATLAS WUs try again to contact ccsqfatlasli01.in2p3.fr on TCP port 23128 and then fail. IIRC from a thread at the old ATLAS board this is due to one or more failed services inside the CERN network. Unfortunately the old thread is no longer visible for me so I can´t link to it. There is only one hint at the new board: https://lhcathome.cern.ch/lhcathome/forum_thread.php?id=4146&postid=29216 |
Send message Joined: 15 Jun 08 Posts: 2386 Credit: 222,898,697 RAC: 138,219 |
@David Cameron New WUs are starting now. That´s the good news. They still request access to ccsqfatlasli01.in2p3.fr but now they ignore the firewall drop and fallback to another partner: atlasfrontier-ai.cern.ch on TCP port 8000. If atlasfrontier-ai.cern.ch:8000 is a permanent solution TCP port 8000 should be mentioned on the FAQ page. |
Send message Joined: 13 May 14 Posts: 387 Credit: 15,314,184 RAC: 0 |
Good point, thanks for mentioning it. What I did this morning was to add atlasfrontier-ai.cern.ch as a fallback in case the normal database servers are down. I've had one completed task and one running for 30 mins so looks like this is working ok. |
Send message Joined: 15 Jun 08 Posts: 2386 Credit: 222,898,697 RAC: 138,219 |
Good point, thanks for mentioning it. So I guess it´s permanent? |
Send message Joined: 2 Sep 04 Posts: 453 Credit: 193,369,412 RAC: 10,065 |
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Send message Joined: 15 Jun 08 Posts: 2386 Credit: 222,898,697 RAC: 138,219 |
ATLAS WUs try again to contact ccsqfatlasli01.in2p3.fr on TCP port 23128 and then fail. No. The request is really to port 23128. I guess it´s a substitution for squid´s standard port 3128 if there are more than 1 squids on the same machine. |
Send message Joined: 13 May 14 Posts: 387 Credit: 15,314,184 RAC: 0 |
Good point, thanks for mentioning it. Yes, I will keep it there. But it should only be used in exceptional circumstances when the other two servers are not working. I have added this port and 23128 (not a typo) to the firewall info page. |
Send message Joined: 15 Jun 08 Posts: 2386 Credit: 222,898,697 RAC: 138,219 |
@David Cameron I have added this port and 23128 (not a typo) to the firewall info page. Thank you. Sorry to bother you. nc -z -v -w 5 atlasfrontier-ai.cern.ch 8000 O.K. nc -z -v -w 5 ccsqfatlasli01.in2p3.fr 23128 Not O.K. although my firewall is now open. |
Send message Joined: 13 May 14 Posts: 387 Credit: 15,314,184 RAC: 0 |
Thanks for this, it's actually a mistake in our ATLAS@Home configuration. The server should be ccfrontier.in2p3.fr:23128. I've fixed this now for new tasks. |
Send message Joined: 15 Jun 08 Posts: 2386 Credit: 222,898,697 RAC: 138,219 |
Thanks for this, it's actually a mistake in our ATLAS@Home configuration. The server should be ccfrontier.in2p3.fr:23128. I've fixed this now for new tasks. That looks very good! :-) nc -z -v -w 5 ccfrontier.in2p3.fr 23128 And it delivers valid content: telnet ccfrontier.in2p3.fr 23128 |
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