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Server Consolidation
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 Laurence Send message Joined: 12 Sep 14 Posts: 1069 Credit: 334,882 RAC: 0  |
As mentioned previously, we would like to consolidate the existing production servers (Sixtrack, vLHC and ATLAS) into a single service. We hope that by doing this we can improve the support and reduce the confusion. One benefit for all is that there will be a single forum so both us and our volunteer moderators can be more effective. The transition will have two phases, commissioning and decommissioning. First a new server will be prepared with a similar configuration as this dev project but based on the Sixtrack DB. This is because they have the most users and 50% of the active users from vLHC and ATLAS are already there, hence it should minimize the impact. Once this new server is ready, it will be opened up for use in parallel with the existing three servers. Next comes the decommissioning. For Sixtrack this should be straight forward, the URLs for the old host will be redirected to the new host. For vLHC and ATLAS things will be a little more complicated. Those users who are already registered with Sixtrack will be encouraged to move to the new server. For those who are not registered they can either register themselves and move or we can do a bulk registration. Tasks can then be stopped and the URLs redirected. Finally there is the issue of credit. It should be possible to migrate the credit from the old servers to the new server. This can only really be done once the servers are no longer used. There is no time critical aspect, just until this is done, only the new credit will be seen. Comments and feedback on this proposal are welcome. P.S The dev project will stay around as it is. |
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Send message Joined: 17 Mar 15 Posts: 51 Credit: 602,329 RAC: 0 
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Not really sure about what you mean with "Those users who are already registered with Sixtrack will be encouraged to move to the new server. For those who are not registered they can either register themselves and move" : "move" ? I don't get it, you mean "start using" ? |
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Laurence Send message Joined: 12 Sep 14 Posts: 1069 Credit: 334,882 RAC: 0 |
A new server has been set up based on LHC@home Classic i.e. the Sixtrack application. 50% of the VLHC@home and ATLAS users are already registered. Soon we will add all applications here as we have done in this dev project. We would then encourage everyone to start using this new server. The 50% who are not registered will need to registered first. Is that clearer? Please let us know if there are any comments on this. |
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Send message Joined: 17 Mar 15 Posts: 51 Credit: 602,329 RAC: 0
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Yep, thanks :) |
 Send message Joined: 28 Jul 16 Posts: 484 Credit: 394,839 RAC: 1  |
The server consolidation caused some trouble with old applications on my hosts. I mentioned this in other message board entrys because it was not clear what was the cause. See: https://lhcathome.cern.ch/vLHCathome-dev/forum_thread.php?id=308&postid=4234 Meanwhile I tested the old and the new master URLs for the dev-project and the non-dev-project. Old: http://lhcathomedev.cern.ch/vLHCathome-dev/ http://lhcathome2.cern.ch/vLHCathome/ New: https://lhcathome.cern.ch/vLHCathome-dev/ https://lhcathome.cern.ch/vLHCathome/ As a result I always get old apps if I attach to the new URLs and vice verca. This happens for Theory as well as for CMS. |
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